Complete app redesign

- Switched to AndroidX namespace
- Switched from Fragments to Activities
- Automatically detects USB drives on (dis)connection
- UX is simpler, less taps are needed

app/build.gradle

@@ -12,7 +12,7 @@ android {
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
     }
     buildTypes {
@@ -26,11 +26,11 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation 'com.android.support:appcompat-v7:28.0.0-rc01'
+    implementation 'androidx.appcompat:appcompat:1.0.0-rc02'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha2'
-    implementation 'com.android.support:design:28.0.0-rc01'
+    implementation 'com.google.android.material:material:1.0.0-rc01'
-    implementation 'com.android.support:recyclerview-v7:28.0.0-rc01'
+    implementation 'androidx.recyclerview:recyclerview:1.0.0-rc02'
-    implementation 'com.android.support:gridlayout-v7:28.0.0-rc01'
+    implementation 'androidx.gridlayout:gridlayout:1.0.0-rc02'
     api 'com.google.guava:guava:26.0-android'
 
     implementation 'com.github.codekidX:storage-chooser:2.0.4.2'
@@ -39,7 +39,9 @@ dependencies {
     implementation project(':dmg2img')
 
 
+    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'com.android.support:design:28.0.0-rc01'
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'androidx.test:runner:1.1.0-alpha4'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4'
 }

app/src/androidTest/java/eu/depau/etchdroid/ExampleInstrumentedTest.kt

@@ -1,7 +1,7 @@
 package eu.depau.etchdroid
 
-import android.support.test.InstrumentationRegistry
+import androidx.test.InstrumentationRegistry
-import android.support.test.runner.AndroidJUnit4
+import androidx.test.runner.AndroidJUnit4
 import org.junit.Assert.assertEquals
 import org.junit.Test
 import org.junit.runner.RunWith

app/src/main/AndroidManifest.xml

@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          xmlns:tools="http://schemas.android.com/tools"
           package="eu.depau.etchdroid">
 
+    <uses-feature android:name="android.hardware.usb.host" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.WAKE_LOCK"/>
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
@@ -12,17 +14,41 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme"
+        tools:ignore="GoogleAppIndexingWarning">
+
         <activity
-            android:name=".activities.MainActivity"
+            android:name=".activities.StartActivity"
             android:label="@string/app_name"
-            android:theme="@style/AppTheme.NoActionBar">
+            android:theme="@style/MaterialAppTheme">
+
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
-
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <activity android:name=".activities.LicensesActivity"
+                  android:label="@string/licenses"
+                  android:theme="@style/MaterialAppTheme">
+        </activity>
+        <activity
+            android:name=".activities.UsbDrivePickerActivity"
+            android:label="@string/title_activity_usb_drive_picker"
+            android:parentActivityName=".activities.StartActivity"
+            android:theme="@style/MaterialAppTheme">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="eu.depau.etchdroid.activities.StartActivity"/>
+        </activity>
+        <activity
+            android:name=".activities.ConfirmationActivity"
+            android:label="@string/title_activity_confirmation"
+            android:parentActivityName=".activities.UsbDrivePickerActivity"
+            android:theme="@style/MaterialAppTheme">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="eu.depau.etchdroid.activities.UsbDrivePickerActivity"/>
+        </activity>
 
         <service
             android:name=".services.UsbApiImgWriteService"
@@ -30,9 +56,6 @@
         <service
             android:name=".services.UsbApiDmgWriteService"
             android:exported="false"/>
-
-        <activity android:name=".activities.LicensesActivity">
-        </activity>
     </application>
 
 </manifest>

app/src/main/java/eu/depau/etchdroid/StateKeeper.kt

@@ -3,18 +3,11 @@ package eu.depau.etchdroid
 import android.hardware.usb.UsbDevice
 import android.net.Uri
 import com.github.mjdev.libaums.UsbMassStorageDevice
-import eu.depau.etchdroid.fragments.WizardFragment
 import eu.depau.etchdroid.enums.FlashMethod
-import eu.depau.etchdroid.enums.ImageLocation
-import eu.depau.etchdroid.enums.WizardStep
 import eu.depau.etchdroid.img_types.Image
 
 object StateKeeper {
-    var wizardStep: WizardStep = WizardStep.SELECT_FLASH_METHOD
-    var currentFragment: WizardFragment? = null
     var flashMethod: FlashMethod? = null
-    var imageLocation: ImageLocation? = ImageLocation.LOCAL
-    var streamingWrite: Boolean = false
     var imageFile: Uri? = null
     var imageRepr: Image? = null
 

app/src/main/java/eu/depau/etchdroid/activities/ActivityBase.kt

@@ -0,0 +1,30 @@
+package eu.depau.etchdroid.activities
+
+import android.content.Intent
+import android.view.Menu
+import android.view.MenuItem
+import androidx.appcompat.app.AppCompatActivity
+import eu.depau.etchdroid.R
+
+abstract class ActivityBase: AppCompatActivity() {
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        menuInflater.inflate(R.menu.menu_main, menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        return when (item.itemId) {
+            R.id.action_licenses -> {
+                val intent = Intent(this, LicensesActivity::class.java)
+                startActivity(intent)
+                return true
+            }
+            else -> super.onOptionsItemSelected(item)
+        }
+    }
+}

app/src/main/java/eu/depau/etchdroid/activities/ConfirmationActivity.kt

@@ -0,0 +1,150 @@
+package eu.depau.etchdroid.activities
+
+import android.os.Bundle
+import android.app.Activity
+import android.content.Intent
+import android.os.Build
+import android.view.View
+import android.widget.Toast
+import androidx.recyclerview.widget.LinearLayoutManager
+import eu.depau.etchdroid.R
+import eu.depau.etchdroid.StateKeeper
+import eu.depau.etchdroid.adapters.PartitionTableRecyclerViewAdapter
+import eu.depau.etchdroid.enums.FlashMethod
+import eu.depau.etchdroid.img_types.DMGImage
+import eu.depau.etchdroid.kotlin_exts.*
+import eu.depau.etchdroid.services.UsbApiDmgWriteService
+import eu.depau.etchdroid.services.UsbApiImgWriteService
+
+import kotlinx.android.synthetic.main.activity_confirmation.*
+import java.io.IOException
+
+class ConfirmationActivity : ActivityBase() {
+    var canContinue: Boolean = false
+    var issuesFound: Boolean = false
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_confirmation)
+        actionBar?.setDisplayHomeAsUpEnabled(true)
+
+        displayDetails()
+        displayImageLayout()
+    }
+
+    fun displayDetails() {
+        confirm_sel_method.text = when (StateKeeper.flashMethod) {
+            FlashMethod.FLASH_API -> getString(R.string.flash_dd_usb_api)
+            FlashMethod.FLASH_DMG_API -> getString(R.string.flash_dmg_api)
+            FlashMethod.FLASH_UNETBOOTIN -> getString(R.string.flash_unetbootin)
+            FlashMethod.FLASH_WOEUSB -> getString(R.string.flash_woeusb)
+            else -> null
+        }
+
+        confirm_sel_image.text = StateKeeper.imageFile?.getFileName(this)
+
+        if (confirm_sel_image.text == null)
+            confirm_sel_image.text = getString(R.string.unknown_filename)
+
+        val imgSize = StateKeeper.imageFile?.getFileSize(this)
+        confirm_sel_image_size.text = imgSize?.toHRSize()
+
+        confirm_sel_usbdev.text = StateKeeper.usbDevice?.name
+
+        for (trial in 0..1) {
+            try {
+                StateKeeper.usbMassStorageDevice!!.init()
+                val blockDev = StateKeeper.usbMassStorageDevice?.blockDevice
+
+                if (blockDev != null) {
+                    val devSize = (blockDev.size.toLong() * blockDev.blockSize.toLong())
+                    confirm_sel_usbdev_size.text = devSize.toHRSize()
+
+                    if (imgSize!! > devSize)
+                        confirm_extra_info.text = getString(R.string.image_bigger_than_usb)
+                    else {
+                        var text =
+                                if (StateKeeper.flashMethod == FlashMethod.FLASH_DMG_API)
+                                    getString(R.string.no_image_size_check_dmg) + "\n"
+                                else
+                                    ""
+                        text += getString(R.string.tap_next_to_write)
+                        confirm_extra_info.text = text
+                        canContinue = true
+                    }
+                } else {
+                    confirm_extra_info.text = getString(R.string.cant_read_usbdev)
+                }
+            } catch (e: IOException) {
+                if (trial == 0) {
+                    StateKeeper.usbMassStorageDevice!!.close()
+                    continue
+                } else {
+                    confirm_extra_info.text = getString(R.string.could_not_access_usb_error)
+                    break
+                }
+            }
+        }
+    }
+
+    fun displayImageLayout() {
+        val uri = StateKeeper.imageFile ?: return
+        val text = uri.getFileName(this)
+
+        if (StateKeeper.flashMethod == FlashMethod.FLASH_DMG_API) {
+            StateKeeper.imageRepr = DMGImage(uri, this)
+            val imgRepr = StateKeeper.imageRepr as DMGImage
+
+            if (imgRepr.tableType == null && (imgRepr.partitionTable == null || imgRepr.partitionTable?.size == 0)) {
+                part_table_header.text = getString(R.string.image_is_not_dmg)
+                issuesFound = true
+                return
+            } else {
+                part_table_header.text = if (imgRepr.tableType != null) getString(R.string.partition_table_title) else ""
+                part_table_header_side.text = imgRepr.tableType?.getString(this) ?: ""
+                issuesFound = false
+
+                val viewAdapter = PartitionTableRecyclerViewAdapter(imgRepr.partitionTable!!)
+                part_table_recycler.apply {
+                    setHasFixedSize(true)
+                    layoutManager = LinearLayoutManager(context)
+                    adapter = viewAdapter
+                }
+            }
+        }
+    }
+
+    fun nextStep() {
+        if (!canContinue) {
+            confirm_fab.snackbar(getString(R.string.cannot_write))
+            return
+        }
+
+        toast(getString(R.string.check_notification_progress), Toast.LENGTH_LONG)
+
+        val intent: Intent = when (StateKeeper.flashMethod) {
+            FlashMethod.FLASH_API -> Intent(this, UsbApiImgWriteService::class.java)
+            FlashMethod.FLASH_DMG_API -> Intent(this, UsbApiDmgWriteService::class.java)
+            else -> null!!
+        }
+
+        intent.setDataAndType(StateKeeper.imageFile, "application/octet-stream")
+        intent.putExtra("usbDevice", StateKeeper.usbDevice)
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+            startForegroundService(intent)
+        else
+            startService(intent)
+
+        moveTaskToBack(true);
+        finish()
+    }
+
+
+    fun onButtonClicked(view: View) {
+        when (view.id) {
+            R.id.confirm_fab -> nextStep()
+        }
+    }
+
+}

app/src/main/java/eu/depau/etchdroid/activities/LicensesActivity.kt

@@ -3,10 +3,9 @@ package eu.depau.etchdroid.activities
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatActivity
-import android.support.v7.widget.LinearLayoutManager
+import androidx.recyclerview.widget.LinearLayoutManager
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
-import android.util.Log
 import android.view.MenuItem
 import android.view.View
 import eu.depau.etchdroid.R
@@ -41,8 +40,6 @@ class LicensesActivity : AppCompatActivity() {
         setContentView(R.layout.activity_licenses)
         updateLicenses()
 
-        title = getString(R.string.licenses)
-
         // Enable back button in action bar
         supportActionBar!!.setDisplayHomeAsUpEnabled(true)
 

app/src/main/java/eu/depau/etchdroid/activities/MainActivity.kt

@@ -1,102 +0,0 @@
-package eu.depau.etchdroid.activities
-
-import android.app.PendingIntent
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-import android.hardware.usb.UsbDevice
-import android.hardware.usb.UsbManager
-import android.os.Bundle
-import android.view.Menu
-import android.view.MenuItem
-import eu.depau.etchdroid.R
-import eu.depau.etchdroid.StateKeeper
-import eu.depau.etchdroid.fragments.WizardFragment
-import eu.depau.etchdroid.fragments.FlashMethodFragment
-import eu.depau.etchdroid.fragments.UsbDriveFragment
-import kotlinx.android.synthetic.main.activity_main.*
-
-class MainActivity : WizardActivity() {
-    val TAG = "MainActivity"
-    val ACTION_USB_PERMISSION = "eu.depau.etchdroid.USB_PERMISSION"
-    lateinit var mUsbPermissionIntent: PendingIntent
-
-    private val mUsbReceiver = object : BroadcastReceiver() {
-
-        override fun onReceive(context: Context, intent: Intent) {
-            if (intent.action == ACTION_USB_PERMISSION) {
-                synchronized(this) {
-                    val device: UsbDevice? = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE)
-
-                    val result = intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)
-                    if (result)
-                        device?.apply {
-                            StateKeeper.usbDevice = this
-                        }
-
-                    if (StateKeeper.currentFragment is UsbDriveFragment)
-                        (StateKeeper.currentFragment as UsbDriveFragment).onUsbPermissionResult(device, result)
-                }
-            }
-        }
-    }
-
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
-        setSupportActionBar(toolbar)
-        fab.setOnClickListener(::nextStep)
-
-        // Create new fragment and transaction
-        val fragment = FlashMethodFragment()
-        val transaction = supportFragmentManager.beginTransaction()
-        transaction.replace(R.id.fragment_layout, fragment)
-        transaction.commit()
-        fragment.onFragmentAdded(this)
-
-        val usbManager = getSystemService(Context.USB_SERVICE) as UsbManager
-        mUsbPermissionIntent = PendingIntent.getBroadcast(this, 0, Intent(ACTION_USB_PERMISSION), 0)
-        val filter = IntentFilter(ACTION_USB_PERMISSION)
-        registerReceiver(mUsbReceiver, filter)
-    }
-
-    override fun onDestroy() {
-        super.onDestroy()
-
-        unregisterReceiver(mUsbReceiver)
-    }
-
-    override fun goToNewFragment(fragment: WizardFragment) {
-        StateKeeper.currentFragment?.onFragmentRemoving(this)
-
-        val transaction = supportFragmentManager.beginTransaction()
-        transaction.setCustomAnimations(R.anim.slide_in_right, R.anim.slide_out_left)
-        transaction.replace(R.id.fragment_layout, fragment)
-        transaction.addToBackStack(null)
-        transaction.commit()
-
-        fragment.onFragmentAdded(this)
-    }
-
-    override fun onCreateOptionsMenu(menu: Menu): Boolean {
-        // Inflate the menu; this adds items to the action bar if it is present.
-        menuInflater.inflate(R.menu.menu_main, menu)
-        return true
-    }
-
-    override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        // Handle action bar item clicks here. The action bar will
-        // automatically handle clicks on the Home/Up button, so long
-        // as you specify a parent activity in AndroidManifest.xml.
-        return when (item.itemId) {
-            R.id.action_licenses -> {
-                val intent = Intent(this, LicensesActivity::class.java)
-                startActivity(intent)
-                return true
-            }
-            else -> super.onOptionsItemSelected(item)
-        }
-    }
-}

app/src/main/java/eu/depau/etchdroid/activities/StartActivity.kt

@@ -0,0 +1,128 @@
+package eu.depau.etchdroid.activities
+
+import android.Manifest
+import android.app.Activity
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.net.Uri
+import android.os.Bundle
+import android.os.Environment
+import android.view.View
+import androidx.core.app.ActivityCompat
+import androidx.core.content.ContextCompat
+import com.codekidlabs.storagechooser.StorageChooser
+import eu.depau.etchdroid.R
+import eu.depau.etchdroid.StateKeeper
+import eu.depau.etchdroid.enums.FlashMethod
+import eu.depau.etchdroid.kotlin_exts.snackbar
+import kotlinx.android.synthetic.main.activity_start.*
+import java.io.File
+
+class StartActivity : ActivityBase() {
+    val TAG = "StartActivity"
+    val READ_REQUEST_CODE = 42
+    val READ_EXTERNAL_STORAGE_PERMISSION = 29
+    var delayedButtonClicked: View? = null
+
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_start)
+    }
+
+    fun onButtonClicked(view: View) {
+        StateKeeper.flashMethod = when (view.id) {
+            R.id.btn_image_raw -> FlashMethod.FLASH_API
+            R.id.btn_image_dmg -> FlashMethod.FLASH_DMG_API
+            else -> null
+        }
+
+        when (StateKeeper.flashMethod) {
+            FlashMethod.FLASH_API -> {
+                val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
+                intent.addCategory(Intent.CATEGORY_OPENABLE)
+                intent.setType("*/*");
+                startActivityForResult(intent, READ_REQUEST_CODE)
+            }
+            FlashMethod.FLASH_DMG_API -> {
+                if (checkAndRequestStorageReadPerm()) {
+                    val sdcard = Environment.getExternalStorageDirectory().absolutePath
+
+                    val chooser = StorageChooser.Builder()
+                            .withActivity(this)
+                            .withFragmentManager(fragmentManager)
+                            .withMemoryBar(true)
+                            .allowCustomPath(true)
+                            .setType(StorageChooser.FILE_PICKER)
+                            .customFilter(arrayListOf("dmg"))
+                            .build()
+                    chooser.show()
+                    chooser.setOnSelectListener {
+                        StateKeeper.imageFile = Uri.fromFile(File(it))
+                        nextStep()
+                    }
+                } else {
+                    delayedButtonClicked = view
+                }
+            }
+            FlashMethod.FLASH_UNETBOOTIN -> {
+            }
+            FlashMethod.FLASH_WOEUSB -> {
+            }
+            null -> {
+            }
+
+        }
+    }
+
+    private fun checkAndRequestStorageReadPerm(): Boolean {
+        if ((ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)) {
+            if (ActivityCompat.shouldShowRequestPermissionRationale(this,
+                            Manifest.permission.READ_EXTERNAL_STORAGE)) {
+                btn_image_dmg.snackbar("Storage permission is required to read DMG images")
+            } else {
+                ActivityCompat.requestPermissions(this,
+                        arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE),
+                        READ_EXTERNAL_STORAGE_PERMISSION)
+            }
+        } else {
+            // Permission granted
+            return true
+        }
+        return false
+    }
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
+        when (requestCode) {
+            READ_EXTERNAL_STORAGE_PERMISSION -> {
+                if (delayedButtonClicked != null)
+                    onButtonClicked(delayedButtonClicked!!)
+                return
+            }
+            else -> {
+            }
+        }
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        if (requestCode == READ_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
+            // The document selected by the user won't be returned in the intent.
+            // Instead, a URI to that document will be contained in the return intent
+            // provided to this method as a parameter.
+            // Pull that URI using resultData.getData().
+            var uri: Uri? = null
+            if (data != null) {
+                uri = data.getData()
+                StateKeeper.imageFile = uri
+
+                nextStep()
+            }
+        }
+    }
+
+
+    fun nextStep() {
+        val intent = Intent(this, UsbDrivePickerActivity::class.java)
+        startActivity(intent)
+    }
+}

app/src/main/java/eu/depau/etchdroid/activities/UsbDrivePickerActivity.kt

@@ -0,0 +1,150 @@
+package eu.depau.etchdroid.activities
+
+import android.app.PendingIntent
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.hardware.usb.UsbDevice
+import android.hardware.usb.UsbManager
+import android.os.Bundle
+import android.view.Menu
+import android.view.MenuItem
+import android.view.View
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+import com.github.mjdev.libaums.UsbMassStorageDevice
+import eu.depau.etchdroid.R
+import eu.depau.etchdroid.StateKeeper
+import eu.depau.etchdroid.adapters.UsbDrivesRecyclerViewAdapter
+import eu.depau.etchdroid.kotlin_exts.name
+import eu.depau.etchdroid.kotlin_exts.snackbar
+import eu.depau.etchdroid.utils.ClickListener
+import eu.depau.etchdroid.utils.EmptyRecyclerView
+import eu.depau.etchdroid.utils.RecyclerViewTouchListener
+import kotlinx.android.synthetic.main.activity_usb_drive_picker.*
+
+class UsbDrivePickerActivity : ActivityBase(), SwipeRefreshLayout.OnRefreshListener {
+    val USB_PERMISSION = "eu.depau.etchdroid.USB_PERMISSION"
+    lateinit var mUsbPermissionIntent: PendingIntent
+
+    private lateinit var recyclerView: EmptyRecyclerView
+    private lateinit var viewAdapter: UsbDrivesRecyclerViewAdapter
+    private lateinit var viewManager: RecyclerView.LayoutManager
+    private lateinit var refreshLayout: SwipeRefreshLayout
+
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_usb_drive_picker)
+        actionBar?.setDisplayHomeAsUpEnabled(true)
+
+        mUsbPermissionIntent = PendingIntent.getBroadcast(this, 0, Intent(USB_PERMISSION), 0)
+        val usbPermissionFilter = IntentFilter(USB_PERMISSION)
+        val usbAttachedFilter = IntentFilter(UsbManager.ACTION_USB_DEVICE_ATTACHED)
+        val usbDetachedFilter = IntentFilter(UsbManager.ACTION_USB_DEVICE_DETACHED)
+
+        registerReceiver(mUsbReceiver, usbPermissionFilter)
+        registerReceiver(mUsbReceiver, usbAttachedFilter)
+        registerReceiver(mUsbReceiver, usbDetachedFilter)
+
+        refreshLayout = usbdevs_swiperefreshlayout
+        refreshLayout.setOnRefreshListener(this)
+        refreshLayout.post {
+            refreshLayout.isRefreshing = true
+            loadUsbDevices()
+        }
+
+        viewManager = LinearLayoutManager(this)
+        recyclerView = usbdevs_recycler_view
+        recyclerView.emptyView = usbdevs_recycler_empty_view
+
+        recyclerView.addOnItemTouchListener(RecyclerViewTouchListener(this, recyclerView, object : ClickListener {
+            override fun onClick(view: View, position: Int) {
+                val device = viewAdapter.get(position)
+                val manager = getSystemService(Context.USB_SERVICE) as UsbManager
+                manager.requestPermission(device.usbDevice, mUsbPermissionIntent)
+            }
+
+            override fun onLongClick(view: View, position: Int) {}
+        }))
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        unregisterReceiver(mUsbReceiver)
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        menuInflater.inflate(R.menu.usb_devices_menu, menu)
+        return super.onCreateOptionsMenu(menu)
+    }
+
+    override fun onContextItemSelected(item: MenuItem): Boolean {
+        return when (item.itemId) {
+            R.id.action_refresh -> {
+                loadUsbDevices()
+                true
+            }
+            else -> super.onOptionsItemSelected(item)
+        }
+    }
+
+    override fun onRefresh() {
+        loadUsbDevices()
+    }
+
+
+    private val mUsbReceiver = object : BroadcastReceiver() {
+
+        override fun onReceive(context: Context, intent: Intent) {
+            when (intent.action) {
+                USB_PERMISSION -> synchronized(this) {
+                    val device: UsbDevice? = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE)
+
+                    val result = intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)
+                    if (result)
+                        device?.apply {
+                            StateKeeper.usbDevice = this
+                        }
+
+                    if (!result) {
+                        if (device != null) {
+                            recyclerView.snackbar(getString(R.string.usb_perm_denied) + device.name)
+                        } else {
+                            recyclerView.snackbar(getString(R.string.usb_perm_denied_noname))
+                        }
+                        return
+                    }
+
+                    StateKeeper.usbDevice = device
+                    StateKeeper.usbMassStorageDevice = UsbMassStorageDevice.getMassStorageDevices(context).find { it.usbDevice == device }
+
+                    nextStep()
+                }
+                UsbManager.ACTION_USB_DEVICE_ATTACHED, UsbManager.ACTION_USB_DEVICE_DETACHED -> loadUsbDevices()
+            }
+        }
+    }
+
+    fun loadUsbDevices() {
+        try {
+            viewAdapter = UsbDrivesRecyclerViewAdapter(UsbMassStorageDevice.getMassStorageDevices(this))
+
+            recyclerView.apply {
+                setHasFixedSize(true)
+                layoutManager = viewManager
+                adapter = viewAdapter
+            }
+        } finally {
+            refreshLayout.isRefreshing = false
+        }
+    }
+
+
+    fun nextStep() {
+        val intent = Intent(this, ConfirmationActivity::class.java)
+        startActivity(intent)
+    }
+}

app/src/main/java/eu/depau/etchdroid/activities/WizardActivity.kt

@@ -1,35 +0,0 @@
-package eu.depau.etchdroid.activities
-
-import android.content.Intent
-import android.support.v7.app.AppCompatActivity
-import android.view.View
-import eu.depau.etchdroid.StateKeeper
-import eu.depau.etchdroid.fragments.WizardFragment
-
-abstract class WizardActivity : AppCompatActivity() {
-    abstract fun goToNewFragment(fragment: WizardFragment)
-
-    open fun onCheckBoxClicked(view: View) {
-        StateKeeper.currentFragment?.onCheckBoxClicked(view)
-    }
-
-    open fun onButtonClicked(view: View) {
-        StateKeeper.currentFragment?.onButtonClicked(view)
-    }
-
-    open fun onRadioButtonClicked(view: View) {
-        StateKeeper.currentFragment?.onRadioButtonClicked(view)
-    }
-
-    open fun nextStep(view: View) {
-        StateKeeper.currentFragment?.nextStep(view)
-    }
-
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
-        StateKeeper.currentFragment?.onRequestPermissionsResult(requestCode, permissions, grantResults)
-    }
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        StateKeeper.currentFragment?.onActivityResult(requestCode, resultCode, data)
-    }
-}

app/src/main/java/eu/depau/etchdroid/adapters/LicenseRecyclerViewAdapter.kt

@@ -1,7 +1,7 @@
 package eu.depau.etchdroid.adapters
 
 import android.annotation.SuppressLint
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup

app/src/main/java/eu/depau/etchdroid/adapters/PartitionTableRecyclerViewAdapter.kt

@@ -1,6 +1,6 @@
 package eu.depau.etchdroid.adapters
 
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import android.widget.LinearLayout

app/src/main/java/eu/depau/etchdroid/adapters/UsbDrivesRecyclerViewAdapter.kt

@@ -2,7 +2,7 @@ package eu.depau.etchdroid.adapters
 
 import android.annotation.SuppressLint
 import android.os.Build
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import android.widget.RelativeLayout

app/src/main/java/eu/depau/etchdroid/fragments/ConfirmInfoFragment.kt

@@ -1,115 +0,0 @@
-package eu.depau.etchdroid.fragments
-
-import android.content.Intent
-import android.os.Build
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import eu.depau.etchdroid.R
-import eu.depau.etchdroid.StateKeeper
-import eu.depau.etchdroid.enums.FlashMethod
-import eu.depau.etchdroid.enums.WizardStep
-import eu.depau.etchdroid.kotlin_exts.*
-import eu.depau.etchdroid.services.UsbApiDmgWriteService
-import eu.depau.etchdroid.services.UsbApiImgWriteService
-import kotlinx.android.synthetic.main.fragment_confirminfo.view.*
-import java.io.IOException
-
-/**
- * A placeholder fragment containing a simple view.
- */
-class ConfirmInfoFragment : WizardFragment() {
-    val TAG = "ConfirmInfoFragment"
-    var canContinue = false
-
-    override fun nextStep(view: View?) {
-        if (!canContinue) {
-            view?.snackbar("Cannot write image to USB drive")
-            return
-        }
-
-        context?.toast("Check notification for progress")
-
-        val intent: Intent = when (StateKeeper.flashMethod) {
-            FlashMethod.FLASH_API -> Intent(activity, UsbApiImgWriteService::class.java)
-            FlashMethod.FLASH_DMG_API -> Intent(activity, UsbApiDmgWriteService::class.java)
-            else -> null!!
-        }
-
-        intent.setDataAndType(StateKeeper.imageFile, "application/octet-stream")
-        intent.putExtra("usbDevice", StateKeeper.usbDevice)
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
-            activity!!.startForegroundService(intent)
-        else
-            activity!!.startService(intent)
-
-        activity!!.finish()
-    }
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
-                              savedInstanceState: Bundle?): View? {
-        StateKeeper.currentFragment = this
-        StateKeeper.wizardStep = WizardStep.CONFIRM
-
-        val view = inflater.inflate(R.layout.fragment_confirminfo, container, false)
-
-        view.confirm_sel_method.text = when (StateKeeper.flashMethod) {
-            FlashMethod.FLASH_API -> getString(R.string.flash_dd_usb_api)
-            FlashMethod.FLASH_DMG_API -> getString(R.string.flash_dmg_api)
-            FlashMethod.FLASH_UNETBOOTIN -> getString(R.string.flash_unetbootin)
-            FlashMethod.FLASH_WOEUSB -> getString(R.string.flash_woeusb)
-            else -> null
-        }
-
-        view.confirm_sel_image.text = StateKeeper.imageFile?.getFileName(context!!)
-
-        if (view.confirm_sel_image.text == null)
-            view.confirm_sel_image.text = getString(R.string.unknown_filename)
-
-        val imgSize = StateKeeper.imageFile?.getFileSize(context!!)
-        view.confirm_sel_image_size.text = imgSize?.toHRSize()
-
-        view.confirm_sel_usbdev.text = StateKeeper.usbDevice?.name
-
-        for (trial in 0..1) {
-            try {
-                StateKeeper.usbMassStorageDevice!!.init()
-                val blockDev = StateKeeper.usbMassStorageDevice?.blockDevice
-
-                if (blockDev != null) {
-                    val devSize = (blockDev.size.toLong() * blockDev.blockSize.toLong())
-                    view.confirm_sel_usbdev_size.text = devSize.toHRSize()
-
-                    if (imgSize!! > devSize)
-                        view.confirm_extra_info.text = getString(R.string.image_bigger_than_usb)
-                    else {
-                        var text =
-                                if (StateKeeper.flashMethod == FlashMethod.FLASH_DMG_API)
-                                    getString(R.string.no_image_size_check_dmg) + "\n"
-                                else
-                                    ""
-                        text += getString(R.string.tap_next_to_write)
-                        view.confirm_extra_info.text = text
-                        canContinue = true
-                    }
-                } else {
-                    view.confirm_extra_info.text = getString(R.string.cant_read_usbdev)
-                }
-            } catch (e: IOException) {
-                if (trial == 0) {
-                    StateKeeper.usbMassStorageDevice!!.close()
-                    continue
-                } else {
-                    view.confirm_extra_info.text = "Could not access USB device. Maybe you ran the app previously and it crashed? Remove and reinsert the USB drive, then restart the app."
-                    break
-                }
-            }
-        }
-
-        return view
-    }
-
-
-}

app/src/main/java/eu/depau/etchdroid/fragments/FlashMethodFragment.kt

@@ -1,42 +0,0 @@
-package eu.depau.etchdroid.fragments
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import eu.depau.etchdroid.R
-import eu.depau.etchdroid.StateKeeper
-import eu.depau.etchdroid.activities.WizardActivity
-import eu.depau.etchdroid.kotlin_exts.snackbar
-import eu.depau.etchdroid.enums.FlashMethod
-import eu.depau.etchdroid.enums.WizardStep
-
-/**
- * A placeholder fragment containing a simple view.
- */
-class FlashMethodFragment : WizardFragment() {
-    override fun nextStep(view: View?) {
-        if (StateKeeper.flashMethod == null)
-            view?.snackbar(getString(R.string.please_select_writing_method))
-        else
-            (activity as WizardActivity).goToNewFragment(ImageLocationFragment())
-    }
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
-                              savedInstanceState: Bundle?): View? {
-        StateKeeper.currentFragment = this
-        StateKeeper.wizardStep = WizardStep.SELECT_FLASH_METHOD
-
-        return inflater.inflate(R.layout.fragment_select_flash_method, container, false)
-    }
-
-    override fun onRadioButtonClicked(view: View) {
-        StateKeeper.flashMethod = when (view.id) {
-            R.id.flash_dmg_api_radio -> FlashMethod.FLASH_DMG_API
-            R.id.flash_usb_api_radio -> FlashMethod.FLASH_API
-            R.id.flash_unetbootin_radio -> FlashMethod.FLASH_UNETBOOTIN
-            R.id.flash_woeusb_radio -> FlashMethod.FLASH_WOEUSB
-            else -> null
-        }
-    }
-}

app/src/main/java/eu/depau/etchdroid/fragments/ImageLocationFragment.kt

@@ -1,211 +0,0 @@
-package eu.depau.etchdroid.fragments
-
-import android.Manifest
-import android.app.Activity
-import android.content.Intent
-import android.content.pm.PackageManager
-import android.net.Uri
-import android.os.Bundle
-import android.os.Environment
-import android.support.v4.app.ActivityCompat
-import android.support.v4.content.ContextCompat
-import android.support.v7.widget.LinearLayoutManager
-import android.util.Log
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import com.codekidlabs.storagechooser.StorageChooser
-import eu.depau.etchdroid.R
-import eu.depau.etchdroid.StateKeeper
-import eu.depau.etchdroid.activities.WizardActivity
-import eu.depau.etchdroid.adapters.PartitionTableRecyclerViewAdapter
-import eu.depau.etchdroid.enums.FlashMethod
-import eu.depau.etchdroid.enums.ImageLocation
-import eu.depau.etchdroid.enums.WizardStep
-import eu.depau.etchdroid.img_types.DMGImage
-import eu.depau.etchdroid.kotlin_exts.getFileName
-import eu.depau.etchdroid.kotlin_exts.snackbar
-import kotlinx.android.synthetic.main.activity_main.*
-import kotlinx.android.synthetic.main.fragment_select_location.*
-import java.io.File
-
-
-/**
- * A placeholder fragment containing a simple view.
- */
-class ImageLocationFragment : WizardFragment() {
-    val READ_REQUEST_CODE = 42
-    val MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE = 29
-    val TAG = "ImageLocationFragment"
-    val PICKER_DIALOG_TAG = "eu.depau.etchdroid.filepicker.DIALOG_TAG"
-    var issuesFound = false
-
-    fun isStreamingAvailable(): Boolean {
-        if (StateKeeper.imageLocation != ImageLocation.REMOTE)
-            return false
-        if (StateKeeper.flashMethod != FlashMethod.FLASH_DMG_API && StateKeeper.flashMethod != FlashMethod.FLASH_API)
-            return false
-        return true
-    }
-
-    override fun onRadioButtonClicked(view: View) {
-        StateKeeper.imageLocation = ImageLocation.LOCAL
-        activity?.fab?.show()
-        pick_file_btn?.isEnabled = StateKeeper.imageLocation == ImageLocation.LOCAL
-        loadImageChanges(activity as WizardActivity)
-    }
-
-    override fun onButtonClicked(view: View) {
-        if (view.id == R.id.pick_file_btn) {
-            when (StateKeeper.flashMethod) {
-                FlashMethod.FLASH_API -> {
-                    val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
-                    intent.addCategory(Intent.CATEGORY_OPENABLE)
-                    intent.setType("*/*");
-                    activity?.startActivityForResult(intent, READ_REQUEST_CODE)
-                }
-                FlashMethod.FLASH_DMG_API -> {
-                    if (checkAndRequestStorageReadPerm()) {
-                        val sdcard = Environment.getExternalStorageDirectory().absolutePath
-
-
-                        val chooser = StorageChooser.Builder()
-                                .withActivity(activity)
-                                .withFragmentManager(activity!!.fragmentManager)
-                                .withMemoryBar(true)
-                                .allowCustomPath(true)
-                                .setType(StorageChooser.FILE_PICKER)
-                                .customFilter(arrayListOf("dmg"))
-                                .build()
-                        chooser.show()
-                        chooser.setOnSelectListener {
-                            StateKeeper.imageFile = Uri.fromFile(File(it))
-                            loadImageChanges(activity as WizardActivity)
-
-                            activity?.fab?.show()
-                        }
-                    }
-                }
-                FlashMethod.FLASH_UNETBOOTIN -> {
-                }
-                FlashMethod.FLASH_WOEUSB -> {
-                }
-                null -> {
-                }
-            }
-        }
-    }
-
-    fun checkAndRequestStorageReadPerm(): Boolean {
-        if ((ContextCompat.checkSelfPermission(activity!!, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)) {
-            if (ActivityCompat.shouldShowRequestPermissionRationale(activity!!,
-                            Manifest.permission.READ_EXTERNAL_STORAGE)) {
-                view!!.snackbar("Storage permission is required to read DMG images")
-            } else {
-                ActivityCompat.requestPermissions(activity!!,
-                        arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE),
-                        MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE)
-            }
-        } else {
-            // Permission granted
-            return true
-        }
-        return false
-    }
-
-    override fun nextStep(view: View?) {
-        if (issuesFound) {
-            view?.snackbar(getString(R.string.issues_found_expl))
-            return
-        }
-
-        if (StateKeeper.imageLocation == null) {
-            view?.snackbar(getString(R.string.select_image_location))
-            return
-        }
-
-        if (StateKeeper.imageFile == null) {
-            view?.snackbar(getString(R.string.provide_image_file))
-            return
-        }
-
-        (activity as WizardActivity).goToNewFragment(UsbDriveFragment())
-    }
-
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
-        when (requestCode) {
-            MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE -> {
-                onButtonClicked(pick_file_btn)
-                return
-            }
-
-            else -> {}
-        }
-
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        activity?.fab?.show()
-    }
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
-                              savedInstanceState: Bundle?): View? {
-        StateKeeper.currentFragment = this
-        StateKeeper.wizardStep = WizardStep.SELECT_LOCATION
-
-        return inflater.inflate(R.layout.fragment_select_location, container, false)
-    }
-
-    fun loadImageChanges(context: WizardActivity) {
-        val button = pick_file_btn
-        val uri = StateKeeper.imageFile ?: return
-
-        val text = uri.getFileName(context)
-
-        if (text != null)
-            button.text = text
-        else
-            button.text = getString(R.string.pick_a_file)
-
-        if (StateKeeper.flashMethod == FlashMethod.FLASH_DMG_API) {
-            StateKeeper.imageRepr = DMGImage(uri, context)
-            val imgRepr = StateKeeper.imageRepr as DMGImage
-
-            if (imgRepr.tableType == null && (imgRepr.partitionTable == null || imgRepr.partitionTable?.size == 0)) {
-                part_table_header.text = getString(R.string.image_is_not_dmg)
-                issuesFound = true
-                return
-            } else {
-                part_table_header.text = if (imgRepr.tableType != null) "Partition table:" else ""
-                part_table_header_side.text = imgRepr.tableType?.getString(context) ?: ""
-                issuesFound = false
-
-                val viewAdapter = PartitionTableRecyclerViewAdapter(imgRepr.partitionTable!!)
-                part_table_recycler.apply {
-                    setHasFixedSize(true)
-                    layoutManager = LinearLayoutManager(activity)
-                    adapter = viewAdapter
-                }
-            }
-        }
-    }
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        if (requestCode == READ_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
-            // The document selected by the user won't be returned in the intent.
-            // Instead, a URI to that document will be contained in the return intent
-            // provided to this method as a parameter.
-            // Pull that URI using resultData.getData().
-            var uri: Uri? = null
-            if (data != null) {
-                uri = data.getData()
-                Log.d(TAG, "Uri: " + uri!!.toString())
-                StateKeeper.imageFile = uri
-                loadImageChanges(activity as WizardActivity)
-
-                activity?.fab?.show()
-            }
-        }
-    }
-}

app/src/main/java/eu/depau/etchdroid/fragments/UsbDriveFragment.kt

@@ -1,139 +0,0 @@
-package eu.depau.etchdroid.fragments
-
-import android.content.Context
-import android.hardware.usb.UsbDevice
-import android.hardware.usb.UsbManager
-import android.os.Bundle
-import android.support.v4.widget.SwipeRefreshLayout
-import android.support.v7.widget.LinearLayoutManager
-import android.support.v7.widget.RecyclerView
-import android.view.*
-import com.github.mjdev.libaums.UsbMassStorageDevice
-import eu.depau.etchdroid.R
-import eu.depau.etchdroid.StateKeeper
-import eu.depau.etchdroid.utils.ClickListener
-import eu.depau.etchdroid.activities.WizardActivity
-import eu.depau.etchdroid.activities.MainActivity
-import eu.depau.etchdroid.adapters.UsbDrivesRecyclerViewAdapter
-import eu.depau.etchdroid.kotlin_exts.name
-import eu.depau.etchdroid.kotlin_exts.snackbar
-import eu.depau.etchdroid.enums.WizardStep
-import eu.depau.etchdroid.utils.RecyclerViewTouchListener
-import kotlinx.android.synthetic.main.activity_main.*
-import kotlinx.android.synthetic.main.fragment_select_usb_drive.view.*
-
-
-/**
- * A placeholder fragment containing a simple view.
- */
-class UsbDriveFragment : WizardFragment(), SwipeRefreshLayout.OnRefreshListener {
-    val TAG = "UsbDriveFragment"
-
-    private lateinit var recyclerView: RecyclerView
-    private lateinit var viewAdapter: UsbDrivesRecyclerViewAdapter
-    private lateinit var viewManager: RecyclerView.LayoutManager
-    private lateinit var refreshLayout: SwipeRefreshLayout
-
-
-    override fun onRefresh() {
-        loadUsbDevices()
-    }
-
-
-    override fun nextStep(view: View?) {
-        (activity as WizardActivity).goToNewFragment(ConfirmInfoFragment())
-    }
-
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
-                              savedInstanceState: Bundle?): View? {
-        StateKeeper.currentFragment = this
-        StateKeeper.wizardStep = WizardStep.SELECT_USB_DRIVE
-
-        val view = inflater.inflate(R.layout.fragment_select_usb_drive, container, false)
-
-        refreshLayout = view.usbdevs_refresh_layout
-        refreshLayout.setOnRefreshListener(this)
-        refreshLayout.post {
-            refreshLayout.isRefreshing = true
-            loadUsbDevices()
-        }
-
-        viewManager = LinearLayoutManager(activity)
-        recyclerView = view.usbdevs_recycler_view
-
-        recyclerView.addOnItemTouchListener(RecyclerViewTouchListener(activity!!, recyclerView, object : ClickListener {
-            override fun onClick(view: View, position: Int) {
-                val device = viewAdapter.get(position)
-                val manager = activity!!.getSystemService(Context.USB_SERVICE) as UsbManager
-                manager.requestPermission(device.usbDevice, (activity as MainActivity).mUsbPermissionIntent)
-            }
-
-            override fun onLongClick(view: View, position: Int) {}
-        }))
-
-        return view
-    }
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setHasOptionsMenu(true)
-    }
-
-    fun loadUsbDevices() {
-        try {
-            viewAdapter = UsbDrivesRecyclerViewAdapter(UsbMassStorageDevice.getMassStorageDevices(activity))
-
-            recyclerView.apply {
-                setHasFixedSize(true)
-                layoutManager = viewManager
-                adapter = viewAdapter
-            }
-        } finally {
-            refreshLayout.isRefreshing = false
-        }
-    }
-
-    override fun onFragmentAdded(activity: WizardActivity) {
-        activity.fab.hide()
-    }
-
-    override fun onFragmentRemoving(activity: WizardActivity) {
-        activity.fab.show()
-    }
-
-    override fun onCreateOptionsMenu(menu: Menu, menuInflater: MenuInflater) {
-        // Inflate the menu; this adds items to the action bar if it is present.
-        menuInflater.inflate(R.menu.usb_devices_menu, menu)
-    }
-
-    override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        // Handle action bar item clicks here. The action bar will
-        // automatically handle clicks on the Home/Up button, so long
-        // as you specify a parent activity in AndroidManifest.xml.
-        return when (item.itemId) {
-            R.id.action_refresh -> {
-                loadUsbDevices()
-                true
-            }
-            else -> super.onOptionsItemSelected(item)
-        }
-    }
-
-    fun onUsbPermissionResult(usbDevice: UsbDevice?, granted: Boolean) {
-        if (!granted) {
-            if (usbDevice != null) {
-                recyclerView.snackbar(getString(R.string.usb_perm_denied) + usbDevice.name)
-            } else {
-                recyclerView.snackbar(getString(R.string.usb_perm_denied_noname))
-            }
-            return
-        }
-
-        StateKeeper.usbDevice = usbDevice
-        StateKeeper.usbMassStorageDevice = UsbMassStorageDevice.getMassStorageDevices(activity).find { it.usbDevice == usbDevice }
-
-        nextStep(null)
-    }
-}
-

app/src/main/java/eu/depau/etchdroid/fragments/WizardFragment.kt

@@ -1,20 +0,0 @@
-package eu.depau.etchdroid.fragments
-
-import android.content.Intent
-import android.support.v4.app.Fragment
-import android.view.View
-import eu.depau.etchdroid.activities.WizardActivity
-
-abstract class WizardFragment() : Fragment() {
-    private lateinit var wizardActivity: WizardActivity
-
-    abstract fun nextStep(view: View?)
-
-    open fun onFragmentAdded(activity: WizardActivity) {}
-    open fun onFragmentRemoving(activity: WizardActivity) {}
-    open fun onRadioButtonClicked(view: View) {}
-    open fun onCheckBoxClicked(view: View) {}
-    open override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {}
-    open fun onButtonClicked(view: View) {}
-    open override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {}
-}

app/src/main/java/eu/depau/etchdroid/kotlin_exts/ViewSnackbar.kt

@@ -1,6 +1,6 @@
 package eu.depau.etchdroid.kotlin_exts
 
-import android.support.design.widget.Snackbar
+import com.google.android.material.snackbar.Snackbar
 import android.view.View
 
 fun View.snackbar(message: CharSequence, duration: Int = Snackbar.LENGTH_LONG) {

app/src/main/java/eu/depau/etchdroid/services/UsbWriteService.kt

@@ -8,7 +8,7 @@ import android.content.Context
 import android.content.Intent
 import android.os.Build
 import android.os.PowerManager
-import android.support.v4.app.NotificationCompat
+import androidx.core.app.NotificationCompat
 import eu.depau.etchdroid.R
 import eu.depau.etchdroid.kotlin_exts.toHRSize
 import eu.depau.etchdroid.kotlin_exts.toHRTime

app/src/main/java/eu/depau/etchdroid/utils/EmptyRecyclerView.kt

@@ -0,0 +1,42 @@
+package eu.depau.etchdroid.utils
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.View
+
+import androidx.recyclerview.widget.RecyclerView
+
+class EmptyRecyclerView : RecyclerView {
+    var emptyView: View? = null
+        set(value) {
+            field = value
+            checkIfEmpty()
+        }
+
+    private val observer: RecyclerView.AdapterDataObserver = object : RecyclerView.AdapterDataObserver() {
+        override fun onChanged() {
+            super.onChanged()
+            checkIfEmpty()
+        }
+    }
+
+    constructor(context: Context) : super(context)
+
+    constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
+
+    constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super(context, attrs, defStyle)
+
+    internal fun checkIfEmpty() {
+        if (emptyView != null)
+            emptyView!!.visibility = if (adapter?.itemCount ?: 0 > 0) View.GONE else View.VISIBLE
+    }
+
+    override fun setAdapter(adapter: RecyclerView.Adapter<*>?) {
+        val oldAdapter = this.adapter
+        oldAdapter?.unregisterAdapterDataObserver(observer)
+        super.setAdapter(adapter)
+        adapter?.registerAdapterDataObserver(observer)
+        checkIfEmpty()
+    }
+
+}

app/src/main/java/eu/depau/etchdroid/utils/RecyclerViewTouchListener.kt

@@ -1,7 +1,7 @@
 package eu.depau.etchdroid.utils
 
 import android.content.Context
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
 import android.view.GestureDetector
 import android.view.MotionEvent
 

app/src/main/res/drawable/ic_beta.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="64dp"
+    android:height="64dp"
+    android:viewportWidth="64"
+    android:viewportHeight="64">
+  <path
+      android:pathData="m0,0 l64,64L64,34.6L29.4,0Z"
+      android:strokeAlpha="1"
+      android:strokeWidth="3.24922633"
+      android:fillColor="#c62828"
+      android:strokeColor="#00000000"
+      android:fillAlpha="1"
+      android:strokeLineCap="square"/>
+  <path
+      android:pathData="m29.8847,6.8837l3.1187,3.1187q0.6608,0.6608 0.9275,1.5072 0.2782,0.8579 0.1043,1.7043 -0.1739,0.8463 -0.7884,1.4608 -0.6145,0.6145 -1.3796,0.7536 -0.7536,0.1507 -1.484,-0.1159l-0.0696,0.0696q0.4058,0.8463 0.2782,1.739 -0.1159,0.9043 -0.8,1.5883 -0.684,0.684 -1.5767,0.8579 -0.8811,0.1855 -1.7854,-0.1159 -0.8811,-0.3014 -1.5883,-1.0086l-3.2578,-3.2578zM29.4674,13.4225q0.5565,0.5565 1.2405,0.5449 0.6956,0 1.1478,-0.4522 0.4522,-0.4522 0.4522,-1.1246 0.0232,-0.6724 -0.5101,-1.2057l-1.8086,-1.8086l-2.2839,2.2839zM26.0473,17.2368q0.5913,0.5913 1.3101,0.5681 0.7304,-0.0116 1.2173,-0.4985 0.4985,-0.4985 0.4869,-1.2289 0.0116,-0.7304 -0.6029,-1.3449l-1.9129,-1.9129l-2.4578,2.4578z"
+      android:fillColor="#ffffff"
+      android:strokeColor="#00000000"
+      android:fillAlpha="1"/>
+  <path
+      android:pathData="m37.176,14.175l5.0432,5.0432l-1.2405,1.2405l-3.7447,-3.7447l-2.2955,2.2955l3.3737,3.3737l-1.2289,1.2289l-3.3737,-3.3737l-2.2955,2.2955l3.7447,3.7447l-1.2405,1.2405l-5.0432,-5.0432z"
+      android:fillColor="#ffffff"
+      android:strokeColor="#00000000"
+      android:fillAlpha="1"/>
+  <path
+      android:pathData="m44.2738,23.7538l-2.3187,-2.3187l1.2405,-1.2405l5.9359,5.9359l-1.2405,1.2405l-2.3187,-2.3187l-7.0605,7.0605l-1.2985,-1.2985z"
+      android:fillColor="#ffffff"
+      android:strokeColor="#00000000"
+      android:fillAlpha="1"/>
+  <path
+      android:pathData="m51.972,28.9709l1.484,1.484l-5.1823,11.4197l-1.4376,-1.4376l1.3796,-2.8636l-3.3505,-3.3505l-2.8752,1.368l-1.4376,-1.4376zM48.9808,35.9271 L50.5692,32.5765 51.2068,31.2897l-0.0696,-0.0696l-1.2869,0.6376 -3.3505,1.5883z"
+      android:fillColor="#ffffff"
+      android:strokeColor="#00000000"
+      android:fillAlpha="1"/>
+</vector>

app/src/main/res/drawable/ic_dmg.xml

@@ -0,0 +1,16 @@
+<vector android:height="96dp" android:viewportHeight="512"
+    android:viewportWidth="512" android:width="96dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillAlpha="0.3" android:fillColor="#FF000000"
+        android:pathData="m170.667,341.333h256v-256h-256z"
+        android:strokeAlpha="0.3" android:strokeWidth="21.33333206"/>
+    <path android:fillColor="#FF000000"
+        android:pathData="m426.667,42.667h-256c-23.467,0 -42.667,19.2 -42.667,42.667v256C128,364.8 147.2,384 170.667,384h256c23.467,0 42.667,-19.2 42.667,-42.667v-256c0,-23.467 -19.2,-42.667 -42.667,-42.667zM426.667,341.333h-256v-256h256z" android:strokeWidth="21.33333206"/>
+    <path android:fillColor="#FF000000"
+        android:pathData="M85.333,128L42.667,128v298.667c0,23.467 19.2,42.667 42.667,42.667L384,469.333L384,426.667L85.333,426.667Z" android:strokeWidth="21.33333206"/>
+    <path android:fillColor="#000000"
+        android:pathData="m277.992,209.953l11.969,0l0,41.891l17.953,0l0,-42.011l11.969,0L319.883,263.814l17.953,0L337.837,203.969C337.837,197.386 332.451,192 325.868,192l-53.86,0C265.424,192 260.038,197.386 260.038,203.969L260.038,263.814l17.953,0z" android:strokeWidth="0.83333331"/>
+    <path android:fillAlpha="1" android:fillColor="#000000"
+        android:pathData="M394.169,191.68L358.263,191.68c-7.181,0 -11.969,5.985 -11.969,11.969l0,47.876c0,5.984 4.788,11.969 11.969,11.969l35.907,0c7.181,0 11.969,-5.985 11.969,-11.969l0,-23.938l-17.953,0l0,17.953l-23.938,0l0,-35.907l41.891,0L406.139,203.649c0,-5.984 -4.788,-11.969 -11.969,-11.969z" android:strokeWidth="0.83333331"/>
+    <path android:fillColor="#000000"
+        android:pathData="M233.098,192L191.195,192L191.195,263.814l41.903,0c10.24,0 17.92,-7.815 17.92,-17.92L251.017,209.92c0,-10.105 -7.68,-17.92 -17.92,-17.92zM233.098,245.894L209.115,245.894L209.115,209.92l23.983,0z" android:strokeWidth="0.93808633"/>
+</vector>

app/src/main/res/drawable/ic_raw.xml

@@ -0,0 +1,13 @@
+<vector android:height="96dp" android:viewportHeight="512"
+    android:viewportWidth="512" android:width="96dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillAlpha="0.3" android:fillColor="#FF000000"
+        android:pathData="M171.1,340.9L427.3,340.9L427.3,84.7L171.1,84.7Z" android:strokeAlpha="0.3"/>
+    <path android:fillColor="#FF000000" android:pathData="M427.3,42L171.1,42C147.615,42 128.4,61.215 128.4,84.7l0,256.2c0,23.485 19.215,42.7 42.7,42.7l256.2,0c23.485,0 42.7,-19.215 42.7,-42.7L470,84.7C470,61.215 450.785,42 427.3,42ZM427.3,340.9L171.1,340.9L171.1,84.7l256.2,0z"/>
+    <path android:fillColor="#FF000000" android:pathData="M85.7,127.4L43,127.4l0,298.9c0,23.485 19.215,42.7 42.7,42.7L384.6,469L384.6,426.3L85.7,426.3Z"/>
+    <path android:fillColor="#FF000000"
+        android:pathData="M253.711,221.384L253.711,209.384c0,-10.247 -7.82,-17.932 -17.932,-17.932L193.847,191.451L193.847,263.316l17.932,0l0,-24l13.753,0l10.247,24l17.932,0l-10.786,-25.213c5.932,-2.966 10.786,-9.573 10.786,-16.719zM235.779,221.384L211.779,221.384L211.779,209.384l24,0z" android:strokeWidth="0.63151968"/>
+    <path android:fillColor="#FF000000"
+        android:pathData="m280.71,245.35l23.955,0l0,17.966l17.966,0L322.631,203.429c0,-6.588 -5.39,-11.977 -11.977,-11.977l-35.932,0c-6.588,0 -11.977,5.39 -11.977,11.977L262.744,263.316l17.966,0zM280.71,209.418l23.955,0L304.665,227.384l-23.955,0z" android:strokeWidth="0.56099999"/>
+    <path android:fillColor="#FF000000"
+        android:pathData="m332.835,191.451l0,59.935c0,6.546 5.383,11.929 11.929,11.929l47.861,0c6.546,0 11.929,-5.383 11.929,-11.929L404.553,191.451L389.57,191.451L389.57,245.422L376.186,245.422L376.186,203.38l-14.984,0l0,42.187l-13.529,0L347.673,191.451Z" android:strokeWidth="0.68137652"/>
+</vector>

app/src/main/res/drawable/ic_twotone_save_alt_24px.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FFFFFFFF"
+      android:pathData="M19,12v7H5v-7H3v7c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2v-7H19zM13,12.67l2.59,-2.58L17,11.5l-5,5l-5,-5l1.41,-1.41L11,12.67V3h2V12.67z"/>
+</vector>

app/src/main/res/drawable/ic_usb_black_200dp.xml

@@ -0,0 +1,5 @@
+<vector android:alpha="0.4" android:height="200dp"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="200dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M15,7v4h1v2h-3V5h2l-3,-4 -3,4h2v8H8v-2.07c0.7,-0.37 1.2,-1.08 1.2,-1.93 0,-1.21 -0.99,-2.2 -2.2,-2.2 -1.21,0 -2.2,0.99 -2.2,2.2 0,0.85 0.5,1.56 1.2,1.93V13c0,1.11 0.89,2 2,2h3v3.05c-0.71,0.37 -1.2,1.1 -1.2,1.95 0,1.22 0.99,2.2 2.2,2.2 1.21,0 2.2,-0.98 2.2,-2.2 0,-0.85 -0.49,-1.58 -1.2,-1.95V15h3c1.11,0 2,-0.89 2,-2v-2h1V7h-4z"/>
+</vector>

app/src/main/res/layout/activity_confirmation.xml

@@ -0,0 +1,219 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/linearLayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".activities.ConfirmationActivity">
+
+    <androidx.core.widget.NestedScrollView
+        android:id="@+id/nestedScrollView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                            android:id="@+id/relativeLayout"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:background="?android:attr/selectableItemBackground"
+                            android:clickable="true"
+                            android:focusable="true"
+                            android:orientation="vertical"
+                            android:paddingLeft="@dimen/activity_horizontal_margin"
+                            android:paddingTop="@dimen/row_padding"
+                            android:paddingRight="@dimen/activity_horizontal_margin"
+                            android:paddingBottom="@dimen/row_padding"
+                >
+
+                <TextView
+                    android:id="@+id/confirm_sel_method_title"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_alignParentTop="true"
+                    android:layout_centerHorizontal="true"
+                    android:ellipsize="end"
+                    android:text="@string/selected_method"
+                    android:textColor="@color/name"
+                    android:textSize="16sp"
+                    android:textStyle="bold"/>
+
+                <TextView
+                    android:id="@+id/confirm_sel_method"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_below="@id/confirm_sel_method_title"/>
+            </RelativeLayout>
+
+            <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:background="?android:attr/selectableItemBackground"
+                            android:clickable="true"
+                            android:focusable="true"
+                            android:orientation="vertical"
+                            android:paddingLeft="@dimen/activity_horizontal_margin"
+                            android:paddingTop="@dimen/row_padding"
+                            android:paddingRight="@dimen/activity_horizontal_margin"
+                            android:paddingBottom="@dimen/row_padding"
+                >
+
+                <TextView
+                    android:id="@+id/confirm_sel_image_title"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_alignParentTop="true"
+                    android:ellipsize="end"
+                    android:text="@string/selected_image"
+                    android:textColor="@color/name"
+                    android:textSize="16sp"
+                    android:textStyle="bold"/>
+
+                <TextView
+                    android:id="@+id/confirm_sel_image"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_below="@id/confirm_sel_image_title"/>
+
+
+                <TextView
+                    android:id="@+id/confirm_sel_image_size"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_alignParentEnd="true"
+                    android:textColor="@color/info"/>
+            </RelativeLayout>
+
+
+            <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                            android:id="@+id/relativeLayout2"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:background="?android:attr/selectableItemBackground"
+                            android:clickable="true"
+                            android:focusable="true"
+                            android:orientation="vertical"
+                            android:paddingLeft="@dimen/activity_horizontal_margin"
+                            android:paddingTop="@dimen/row_padding"
+                            android:paddingRight="@dimen/activity_horizontal_margin"
+                            android:paddingBottom="@dimen/row_padding"
+                >
+
+                <TextView
+                    android:id="@+id/confirm_sel_usbdev_title"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_alignParentTop="true"
+                    android:ellipsize="end"
+                    android:text="@string/selected_usbdev"
+                    android:textColor="@color/name"
+                    android:textSize="16sp"
+                    android:textStyle="bold"/>
+
+                <TextView
+                    android:id="@+id/confirm_sel_usbdev"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_below="@id/confirm_sel_usbdev_title"/>
+
+                <TextView
+                    android:id="@+id/confirm_sel_usbdev_size"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_alignParentEnd="true"
+                    android:textColor="@color/info"/>
+
+            </RelativeLayout>
+
+
+            <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:background="?android:attr/selectableItemBackground"
+                            android:clickable="true"
+                            android:focusable="true"
+                            android:orientation="vertical"
+                            android:paddingLeft="@dimen/activity_horizontal_margin"
+                            android:paddingTop="@dimen/row_padding"
+                            android:paddingRight="@dimen/activity_horizontal_margin"
+                            android:paddingBottom="@dimen/row_padding"
+                >
+
+                <TextView
+                    android:id="@+id/confirm_extra_info"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_alignParentTop="true"
+                    android:ellipsize="end"
+                    android:textColor="@color/name"
+                    android:textSize="16sp"/>
+
+
+            </RelativeLayout>
+
+
+            <TextView
+                android:id="@+id/part_table_header"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:paddingLeft="@dimen/activity_horizontal_margin"
+                android:paddingTop="@dimen/row_padding"
+                android:paddingRight="@dimen/activity_horizontal_margin"
+                android:paddingBottom="@dimen/row_padding"
+                android:textColor="@color/name"
+                android:textSize="16sp"
+                android:textStyle="bold"
+                />
+
+            <TextView
+                android:id="@+id/part_table_header_side"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:paddingLeft="@dimen/activity_horizontal_margin"
+                android:paddingTop="@dimen/row_padding"
+                android:paddingRight="@dimen/activity_horizontal_margin"
+                android:paddingBottom="@dimen/row_padding"
+                android:textColor="@color/info"
+                />
+
+
+            <androidx.recyclerview.widget.RecyclerView
+                android:id="@+id/part_table_recycler"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:paddingLeft="@dimen/activity_horizontal_margin"
+                android:paddingTop="@dimen/row_padding"
+                android:paddingRight="@dimen/activity_horizontal_margin"
+                android:paddingBottom="@dimen/row_padding"
+                app:layout_constraintTop_toBottomOf="@+id/relativeLayout2"
+                />
+
+        </LinearLayout>
+    </androidx.core.widget.NestedScrollView>
+
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/confirm_fab"
+        style="@style/Widget.MaterialComponents.FloatingActionButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|end"
+        android:layout_margin="@dimen/fab_margin"
+        android:layout_marginEnd="8dp"
+        android:layout_marginBottom="8dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:onClick="onButtonClicked"
+        app:srcCompat="@drawable/ic_twotone_save_alt_24px"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_licenses.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout
+<androidx.constraintlayout.widget.ConstraintLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
@@ -7,11 +7,11 @@
     android:layout_height="match_parent"
     tools:context=".activities.LicensesActivity">
 
-    <android.support.v7.widget.RecyclerView
+    <androidx.recyclerview.widget.RecyclerView
         xmlns:android="http://schemas.android.com/apk/res/android"
         android:id="@+id/licenses_recycler_view"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:scrollbars="vertical"/>
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_main.xml

@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".activities.MainActivity">
-
-    <android.support.design.widget.AppBarLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
-
-        <android.support.v7.widget.Toolbar
-            android:id="@+id/toolbar"
-            android:layout_width="match_parent"
-            android:layout_height="?attr/actionBarSize"
-            android:background="?attr/colorPrimary"
-            app:popupTheme="@style/AppTheme.PopupOverlay"/>
-
-    </android.support.design.widget.AppBarLayout>
-
-    <include layout="@layout/wizard_fragment_layout"/>
-
-    <android.support.design.widget.FloatingActionButton
-        android:id="@+id/fab"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
-        android:layout_margin="@dimen/fab_margin"
-        app:srcCompat="@drawable/ic_navigate_next_black_24dp"/>
-
-</android.support.design.widget.CoordinatorLayout>

app/src/main/res/layout/activity_start.xml

@@ -0,0 +1,151 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    tools:context=".activities.StartActivity">
+
+
+    <LinearLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        tools:context=".fragments.FlashMethodFragment"
+        tools:showIn="@layout/activity_start">
+
+        <androidx.cardview.widget.CardView
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:clickable="true"
+            android:focusable="true"
+            android:layout_marginLeft="@dimen/card_margin"
+            android:layout_marginTop="@dimen/card_margin"
+            android:layout_marginRight="@dimen/card_margin"
+            android:minHeight="200dp">
+
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:id="@+id/btn_image_raw"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:background="?attr/selectableItemBackground"
+                android:onClick="onButtonClicked">
+
+                <ImageView
+                    android:id="@+id/imageView"
+                    android:layout_width="wrap_content"
+                    android:layout_height="0dp"
+                    android:layout_marginStart="32dp"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintVertical_bias="0.0"
+                    app:srcCompat="@drawable/ic_raw"/>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginStart="32dp"
+                    android:layout_marginEnd="32dp"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toEndOf="@id/imageView"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintVertical_bias="0.502">
+
+                    <TextView
+                        android:id="@+id/textView"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:text="@string/write_image_or_iso"
+                        android:textColor="@color/name"
+                        android:textStyle="bold"/>
+
+                    <TextView
+                        android:id="@+id/textView2"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_below="@id/textView"
+                        android:text="@string/raw_image_desc"/>
+                </RelativeLayout>
+
+            </androidx.constraintlayout.widget.ConstraintLayout>
+        </androidx.cardview.widget.CardView>
+
+
+        <androidx.cardview.widget.CardView
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:clickable="true"
+            android:focusable="true"
+            android:layout_marginLeft="@dimen/card_margin"
+            android:layout_marginTop="@dimen/card_margin"
+            android:layout_marginRight="@dimen/card_margin"
+            android:layout_marginBottom="@dimen/card_margin"
+            android:minHeight="200dp">
+            <!--
+            android:background="?attr/selectableItemBackground"-->
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:id="@+id/btn_image_dmg"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:background="?attr/selectableItemBackground"
+                android:onClick="onButtonClicked">
+
+                <ImageView
+                    android:id="@+id/imageView2"
+                    android:layout_width="wrap_content"
+                    android:layout_height="0dp"
+                    android:layout_marginStart="32dp"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintVertical_bias="0.0"
+                    app:srcCompat="@drawable/ic_dmg"/>
+
+                <ImageView
+                    android:id="@+id/imageView3"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginRight="-2dp"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:srcCompat="@drawable/ic_beta"/>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginStart="32dp"
+                    android:layout_marginEnd="36dp"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toEndOf="@id/imageView2"
+                    app:layout_constraintTop_toTopOf="parent">
+
+                    <TextView
+                        android:id="@+id/textView4"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:text="@string/write_apple_dmg"
+                        android:textColor="@color/name"
+                        android:textStyle="bold"/>
+
+                    <TextView
+                        android:id="@+id/textView5"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_below="@id/textView4"
+                        android:text="@string/dmg_image_desc"/>
+                </RelativeLayout>
+            </androidx.constraintlayout.widget.ConstraintLayout>
+        </androidx.cardview.widget.CardView>
+    </LinearLayout>
+
+</LinearLayout>

app/src/main/res/layout/activity_usb_drive_picker.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/usbdevs_swiperefreshlayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".activities.UsbDrivePickerActivity">
+
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <eu.depau.etchdroid.utils.EmptyRecyclerView
+            xmlns:android="http://schemas.android.com/apk/res/android"
+            android:id="@+id/usbdevs_recycler_view"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:scrollbars="vertical"/>
+
+        <TextView
+            android:id="@+id/usbdevs_recycler_empty_view"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="8dp"
+            android:layout_marginBottom="8dp"
+            android:orientation="vertical"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            android:text="@string/no_usb_drives_detected"
+            android:textAlignment="center"
+            android:drawableTop="@drawable/ic_usb_black_200dp"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

app/src/main/res/layout/fragment_confirminfo.xml

@@ -1,144 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    tools:context=".fragments.ConfirmInfoFragment">
-    <!--tools:showIn="@layout/activity_main"-->
-
-
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:background="?android:attr/selectableItemBackground"
-                    android:clickable="true"
-                    android:focusable="true"
-                    android:orientation="vertical"
-                    android:paddingBottom="@dimen/row_padding"
-                    android:paddingLeft="@dimen/activity_horizontal_margin"
-                    android:paddingRight="@dimen/activity_horizontal_margin"
-                    android:paddingTop="@dimen/row_padding">
-
-        <TextView
-            android:id="@+id/confirm_sel_method_title"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_alignParentTop="true"
-            android:ellipsize="end"
-            android:text="@string/selected_method"
-            android:textColor="@color/name"
-            android:textSize="16sp"
-            android:textStyle="bold"/>
-
-        <TextView
-            android:id="@+id/confirm_sel_method"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/confirm_sel_method_title"/>
-    </RelativeLayout>
-
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:background="?android:attr/selectableItemBackground"
-                    android:clickable="true"
-                    android:focusable="true"
-                    android:orientation="vertical"
-                    android:paddingBottom="@dimen/row_padding"
-                    android:paddingLeft="@dimen/activity_horizontal_margin"
-                    android:paddingRight="@dimen/activity_horizontal_margin"
-                    android:paddingTop="@dimen/row_padding">
-
-        <TextView
-            android:id="@+id/confirm_sel_image_title"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_alignParentTop="true"
-            android:ellipsize="end"
-            android:text="@string/selected_image"
-            android:textColor="@color/name"
-            android:textSize="16sp"
-            android:textStyle="bold"/>
-
-        <TextView
-            android:id="@+id/confirm_sel_image"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/confirm_sel_image_title"/>
-
-
-        <TextView
-            android:id="@+id/confirm_sel_image_size"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_alignParentEnd="true"
-            android:textColor="@color/info"/>
-    </RelativeLayout>
-
-
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:background="?android:attr/selectableItemBackground"
-                    android:clickable="true"
-                    android:focusable="true"
-                    android:orientation="vertical"
-                    android:paddingBottom="@dimen/row_padding"
-                    android:paddingLeft="@dimen/activity_horizontal_margin"
-                    android:paddingRight="@dimen/activity_horizontal_margin"
-                    android:paddingTop="@dimen/row_padding">
-
-        <TextView
-            android:id="@+id/confirm_sel_usbdev_title"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_alignParentTop="true"
-            android:ellipsize="end"
-            android:text="@string/selected_usbdev"
-            android:textColor="@color/name"
-            android:textSize="16sp"
-            android:textStyle="bold"/>
-
-        <TextView
-            android:id="@+id/confirm_sel_usbdev"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/confirm_sel_usbdev_title"/>
-
-        <TextView
-            android:id="@+id/confirm_sel_usbdev_size"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_alignParentEnd="true"
-            android:textColor="@color/info"/>
-
-    </RelativeLayout>
-
-
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:background="?android:attr/selectableItemBackground"
-                    android:clickable="true"
-                    android:focusable="true"
-                    android:orientation="vertical"
-                    android:paddingBottom="@dimen/row_padding"
-                    android:paddingLeft="@dimen/activity_horizontal_margin"
-                    android:paddingRight="@dimen/activity_horizontal_margin"
-                    android:paddingTop="@dimen/row_padding">
-
-        <TextView
-            android:id="@+id/confirm_extra_info"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_alignParentTop="true"
-            android:ellipsize="end"
-            android:textColor="@color/name"
-            android:textSize="16sp"/>
-
-
-    </RelativeLayout>
-
-</LinearLayout>

app/src/main/res/layout/fragment_select_flash_method.xml

@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    tools:context=".fragments.FlashMethodFragment"
-    tools:showIn="@layout/activity_main">
-
-    <RadioGroup
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-
-        <RadioButton
-            android:id="@+id/flash_usb_api_radio"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:onClick="onRadioButtonClicked"
-            android:text="@string/flash_dd_usb_api"/>
-
-        <RadioButton
-            android:id="@+id/flash_dmg_api_radio"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:onClick="onRadioButtonClicked"
-            android:text="@string/flash_dmg_api"/>
-
-        <RadioButton
-            android:id="@+id/flash_unetbootin_radio"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:enabled="false"
-            android:onClick="onRadioButtonClicked"
-            android:text="@string/flash_unetbootin"/>
-
-        <RadioButton
-            android:id="@+id/flash_woeusb_radio"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:enabled="false"
-            android:onClick="onRadioButtonClicked"
-            android:text="@string/flash_woeusb"/>
-
-    </RadioGroup>
-</LinearLayout>

app/src/main/res/layout/fragment_select_location.xml

@@ -1,59 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    tools:context=".fragments.FlashMethodFragment">
-
-    <RadioGroup
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-
-        <Button
-            android:id="@+id/pick_file_btn"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:onClick="onButtonClicked"
-            android:text="@string/pick_a_file"/>
-
-    </RadioGroup>
-
-
-    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-                  android:layout_width="match_parent"
-                  android:layout_height="wrap_content"
-                  android:background="?android:attr/selectableItemBackground"
-                  android:clickable="true"
-                  android:focusable="true"
-                  android:orientation="horizontal"
-                  android:paddingBottom="@dimen/row_padding"
-                  android:paddingLeft="@dimen/activity_horizontal_margin"
-                  android:paddingRight="@dimen/activity_horizontal_margin"
-                  android:paddingTop="@dimen/row_padding">
-
-        <TextView
-            android:id="@+id/part_table_header"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:padding="@dimen/grid_padding"
-            android:textColor="@color/name"
-            android:textSize="16sp"
-            android:textStyle="bold"/>
-
-        <TextView
-            android:id="@+id/part_table_header_side"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:padding="@dimen/grid_padding"
-            android:textColor="@color/info"/>
-
-    </LinearLayout>
-
-    <android.support.v7.widget.RecyclerView
-        android:id="@+id/part_table_recycler"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"/>
-
-</LinearLayout>

app/src/main/res/layout/fragment_select_usb_drive.xml

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<android.support.v4.widget.SwipeRefreshLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/usbdevs_refresh_layout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <android.support.v7.widget.RecyclerView
-        xmlns:android="http://schemas.android.com/apk/res/android"
-        android:id="@+id/usbdevs_recycler_view"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:scrollbars="vertical"/>
-
-</android.support.v4.widget.SwipeRefreshLayout>

app/src/main/res/menu/menu_main.xml

@@ -1,7 +1,7 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
       xmlns:app="http://schemas.android.com/apk/res-auto"
       xmlns:tools="http://schemas.android.com/tools"
-      tools:context="eu.depau.etchdroid.activities.MainActivity">
+      tools:context="eu.depau.etchdroid.activities.StartActivity">
     <item
         android:id="@+id/action_licenses"
         android:orderInCategory="100"

app/src/main/res/values/colors.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimary">#4caf50</color>
-    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorPrimaryDark">#087f23</color>
-    <color name="colorAccent">#FF4081</color>
+    <color name="colorAccent">#4caf50</color>
     <color name="info">#999999</color>
     <color name="name">#222222</color>
 </resources>

app/src/main/res/values/dimens.xml

@@ -4,4 +4,5 @@
     <dimen name="activity_vertical_margin">16dp</dimen>
     <dimen name="row_padding">10dp</dimen>
     <dimen name="grid_padding">5dp</dimen>
+    <dimen name="card_margin">12dp</dimen>
 </resources>

app/src/main/res/values/strings.xml

@@ -24,7 +24,7 @@
     <string name="please_select_writing_method">Please select writing method</string>
     <string name="image_bigger_than_usb">Image is bigger than the USB drive, so it can\'t be written</string>
     <string name="cant_read_usbdev">Cannot read USB device</string>
-    <string name="tap_next_to_write">Tap Next to write the image to the USB drive</string>
+    <string name="tap_next_to_write">Tap Write to write the image to the USB drive</string>
     <string name="notchan_writestatus_title">USB write status</string>
     <string name="notchan_writestatus_desc">Used to display the status of images being written to USB drives</string>
     <string name="notif_initializing">Initializing...</string>
@@ -81,4 +81,15 @@
     <string name="license_custom">Custom</string>
     <string name="licenses">Licenses</string>
     <string name="dmg2img_license_desc">Converts compressed Apple® DMG images</string>
+    <string name="title_activity_usb_drive_picker">Select USB drive</string>
+    <string name="title_activity_confirmation">Ready to write</string>
+    <string name="cannot_write">Cannot write image to USB drive</string>
+    <string name="check_notification_progress">Check notification for progress</string>
+    <string name="partition_table_title">Partition table:</string>
+    <string name="could_not_access_usb_error">Could not access USB device. Maybe you ran the app previously and it crashed? Remove and reinsert the USB drive, then restart the app.</string>
+    <string name="write_image_or_iso">Write raw image or ISO</string>
+    <string name="raw_image_desc">Good for GNU/Linux distribution ISOs and disk images created on Windows or Linux</string>
+    <string name="write_apple_dmg">Write Apple® DMG image</string>
+    <string name="dmg_image_desc">Restore an image created with macOS Disk Utility</string>
+    <string name="no_usb_drives_detected">No USB drives detected</string>
 </resources>

app/src/main/res/values/styles.xml

@@ -1,8 +1,7 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">
+    <style name="MaterialAppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">
-        <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
@@ -10,13 +9,14 @@
         <item name="floatingActionButtonStyle">@style/Widget.Design.FloatingActionButton</item>
     </style>
 
-    <style name="AppTheme.NoActionBar">
+
+    <style name="MaterialAppTheme.NoActionBar">
         <item name="windowActionBar">false</item>
         <item name="windowNoTitle">true</item>
     </style>
 
-    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>
 
-    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light"/>
+    <style name="MaterialAppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>
 
+    <style name="MaterialAppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light"/>
 </resources>

build.gradle

@@ -1,13 +1,13 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.2.50'
+    ext.kotlin_version = '1.2.51'
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath 'com.android.tools.build:gradle:3.2.0-rc02'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // For libaums

gradle.properties

@@ -6,6 +6,8 @@
 # http://www.gradle.org/docs/current/userguide/build_environment.html
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
+android.enableJetifier=true
+android.useAndroidX=true
 org.gradle.jvmargs=-Xmx1536m
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sat Aug 11 18:29:21 CEST 2018
+#Thu Aug 30 23:16:18 CEST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip