commit c2a568f5d3246445eb202713253b26819c5c8e49
Author: Davide Depau <davide@depau.eu>
Date:   Sun Aug 12 16:33:11 2018 +0200

    Initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..daaeaef
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,123 @@
+
+*.iml
+.gradle
+/local.properties
+
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+### Java template
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+.idea
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+### Android template
+# Built application files
+*.apk
+*.ap_
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+# Generated files
+bin/
+gen/
+# Gradle files
+build/
+
+# Local configuration file (sdk path, etc)
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+
+# Keystore files
+# Uncomment the following line if you do not want to check your keystore files in.
+#*.jks
+
+# External native build folder generated in Android Studio 2.2 and later
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output
+fastlane/readme.md
+
diff --git a/app/.gitignore b/app/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/app/build.gradle b/app/build.gradle
new file mode 100644
index 0000000..8af2f7e
--- /dev/null
+++ b/app/build.gradle
@@ -0,0 +1,37 @@
+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "eu.depau.ddroid"
+        minSdkVersion 19
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        android.defaultConfig.vectorDrawables.useSupportLibrary = true
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+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 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'com.android.support:design:28.0.0-rc01'
+    implementation 'com.android.support:recyclerview-v7:28.0.0-rc01'
+    implementation 'com.github.mjdev:libaums:0.5.5'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/app/src/androidTest/java/eu/depau/ddroid/ExampleInstrumentedTest.kt b/app/src/androidTest/java/eu/depau/ddroid/ExampleInstrumentedTest.kt
new file mode 100644
index 0000000..696e183
--- /dev/null
+++ b/app/src/androidTest/java/eu/depau/ddroid/ExampleInstrumentedTest.kt
@@ -0,0 +1,24 @@
+package eu.depau.ddroid
+
+import android.support.test.InstrumentationRegistry
+import android.support.test.runner.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getTargetContext()
+        assertEquals("eu.depau.ddroid", appContext.packageName)
+    }
+}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..86406c7
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="eu.depau.ddroid">
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity
+            android:name=".activities.MainActivity"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/app/src/main/java/eu/depau/ddroid/StateKeeper.kt b/app/src/main/java/eu/depau/ddroid/StateKeeper.kt
new file mode 100644
index 0000000..bbf3656
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/StateKeeper.kt
@@ -0,0 +1,16 @@
+package eu.depau.ddroid
+
+import android.net.Uri
+import eu.depau.ddroid.abc.WizardFragment
+import eu.depau.ddroid.values.FlashMethod
+import eu.depau.ddroid.values.ImageLocation
+import eu.depau.ddroid.values.WizardStep
+
+object StateKeeper {
+    var wizardStep: WizardStep = WizardStep.SELECT_FLASH_METHOD
+    var currentFragment: WizardFragment? = null
+    var flashMethod: FlashMethod? = null
+    var imageLocation: ImageLocation? = null
+    var streamingWrite: Boolean = false
+    var imageFile: Uri? = null
+}
\ No newline at end of file
diff --git a/app/src/main/java/eu/depau/ddroid/abc/WizardActivity.kt b/app/src/main/java/eu/depau/ddroid/abc/WizardActivity.kt
new file mode 100644
index 0000000..536bca3
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/abc/WizardActivity.kt
@@ -0,0 +1,34 @@
+package eu.depau.ddroid.abc
+
+import android.content.Intent
+import android.support.v7.app.AppCompatActivity
+import android.view.View
+import eu.depau.ddroid.StateKeeper
+
+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)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/eu/depau/ddroid/abc/WizardFragment.kt b/app/src/main/java/eu/depau/ddroid/abc/WizardFragment.kt
new file mode 100644
index 0000000..2e12a0a
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/abc/WizardFragment.kt
@@ -0,0 +1,16 @@
+package eu.depau.ddroid.abc
+
+import android.content.Intent
+import android.support.v4.app.Fragment
+import android.view.View
+
+abstract class WizardFragment : Fragment() {
+    abstract fun nextStep(view: View)
+
+    open fun onFragmentAdded(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) {}
+}
\ No newline at end of file
diff --git a/app/src/main/java/eu/depau/ddroid/activities/MainActivity.kt b/app/src/main/java/eu/depau/ddroid/activities/MainActivity.kt
new file mode 100644
index 0000000..44e7cc3
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/activities/MainActivity.kt
@@ -0,0 +1,51 @@
+package eu.depau.ddroid.activities
+
+import android.os.Bundle
+import android.view.Menu
+import android.view.MenuItem
+import eu.depau.ddroid.R
+import eu.depau.ddroid.abc.WizardActivity
+import eu.depau.ddroid.abc.WizardFragment
+import eu.depau.ddroid.fragments.FlashMethodFragment
+import kotlinx.android.synthetic.main.activity_main.*
+
+class MainActivity : WizardActivity() {
+    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)
+    }
+
+    override fun goToNewFragment(fragment: WizardFragment) {
+        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_settings -> true
+            else -> super.onOptionsItemSelected(item)
+        }
+    }
+}
diff --git a/app/src/main/java/eu/depau/ddroid/fragments/FlashMethodFragment.kt b/app/src/main/java/eu/depau/ddroid/fragments/FlashMethodFragment.kt
new file mode 100644
index 0000000..3fea8a9
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/fragments/FlashMethodFragment.kt
@@ -0,0 +1,42 @@
+package eu.depau.ddroid.fragments
+
+import android.os.Bundle
+import android.support.design.widget.Snackbar
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import eu.depau.ddroid.*
+import eu.depau.ddroid.abc.WizardActivity
+import eu.depau.ddroid.abc.WizardFragment
+import eu.depau.ddroid.values.FlashMethod
+import eu.depau.ddroid.values.WizardStep
+
+/**
+ * A placeholder fragment containing a simple view.
+ */
+class FlashMethodFragment : WizardFragment() {
+    override fun nextStep(view: View) {
+        if (StateKeeper.flashMethod == null)
+            Snackbar.make(view, "Please select writing method", Snackbar.LENGTH_LONG).show()
+        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_dd_root_radio -> FlashMethod.FLASH_DD
+            R.id.flash_dd_usb_api_radio -> FlashMethod.FLASH_API
+            R.id.flash_unetbootin_radio -> FlashMethod.FLASH_UNETBOOTIN
+            R.id.flash_woeusb_radio -> FlashMethod.FLASH_WOEUSB
+            else -> null
+        }
+    }
+}
diff --git a/app/src/main/java/eu/depau/ddroid/fragments/ImageLocationFragment.kt b/app/src/main/java/eu/depau/ddroid/fragments/ImageLocationFragment.kt
new file mode 100644
index 0000000..8db51f2
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/fragments/ImageLocationFragment.kt
@@ -0,0 +1,202 @@
+package eu.depau.ddroid.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.provider.OpenableColumns
+import android.support.design.widget.Snackbar
+import android.support.v4.app.ActivityCompat
+import android.support.v4.content.ContextCompat
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.CheckBox
+import android.widget.EditText
+import eu.depau.ddroid.*
+import eu.depau.ddroid.abc.WizardActivity
+import eu.depau.ddroid.abc.WizardFragment
+import eu.depau.ddroid.values.FlashMethod
+import eu.depau.ddroid.values.ImageLocation
+import eu.depau.ddroid.values.WizardStep
+
+
+/**
+ * A placeholder fragment containing a simple view.
+ */
+class ImageLocationFragment : WizardFragment() {
+    val READ_REQUEST_CODE = 42
+    val MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE = 29
+    val TAG = "ImageLocationFragment"
+
+    fun isStreamingAvailable(): Boolean {
+        if (StateKeeper.imageLocation != ImageLocation.REMOTE)
+            return false
+        if (StateKeeper.flashMethod != FlashMethod.FLASH_DD && StateKeeper.flashMethod != FlashMethod.FLASH_API)
+            return false
+        return true
+    }
+
+    fun setStreamingCheckBoxAvailability(context: WizardActivity) {
+        val checkBox = context.findViewById<CheckBox>(R.id.streaming_write_checkbox)
+
+        if (checkBox == null)
+            return
+
+        val curEnabled = checkBox.isEnabled
+        var enabled = isStreamingAvailable()
+
+        if (curEnabled != enabled) {
+            checkBox.isEnabled = enabled
+            onCheckBoxClicked(checkBox)
+        }
+    }
+
+    override fun onCheckBoxClicked(view: View) {
+        super.onCheckBoxClicked(view)
+
+        if (view.id == R.id.streaming_write_checkbox)
+            StateKeeper.streamingWrite = view.isActivated && view.isEnabled
+    }
+
+    override fun onRadioButtonClicked(view: View) {
+        StateKeeper.imageLocation = when (view.id) {
+            R.id.download_img_radio -> ImageLocation.REMOTE
+            R.id.use_local_img_radio -> ImageLocation.LOCAL
+            else -> null
+        }
+
+        activity?.findViewById<Button>(R.id.pick_file_btn)?.isEnabled = StateKeeper.imageLocation == ImageLocation.LOCAL
+        activity?.findViewById<EditText>(R.id.img_url_textview)?.isEnabled = StateKeeper.imageLocation == ImageLocation.REMOTE
+
+        setStreamingCheckBoxAvailability(activity as WizardActivity)
+        updateFileButtonLabel(activity as WizardActivity)
+    }
+
+    override fun onButtonClicked(view: View) {
+        if (view.id == R.id.pick_file_btn) {
+            val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
+            intent.addCategory(Intent.CATEGORY_OPENABLE)
+            intent.setType("*/*");
+            activity?.startActivityForResult(intent, READ_REQUEST_CODE)
+        }
+    }
+
+    override fun nextStep(view: View) {
+        if (StateKeeper.imageLocation == null) {
+            Snackbar.make(view, getString(R.string.select_image_location), Snackbar.LENGTH_LONG).show()
+            return
+        }
+
+        if (StateKeeper.imageLocation == ImageLocation.REMOTE) {
+            try {
+                StateKeeper.imageFile = getRemoteImageUri(activity as WizardActivity)
+            } catch (e: RuntimeException) {
+                Log.e(TAG, "Invalid URI specified", e)
+                Snackbar.make(view, getString(R.string.provided_url_invalid), Snackbar.LENGTH_LONG).show()
+                return
+            }
+        }
+
+        if (StateKeeper.imageFile == null) {
+            Snackbar.make(view, getString(R.string.provide_image_file), Snackbar.LENGTH_LONG).show()
+            return
+        }
+
+        if (StateKeeper.imageLocation == ImageLocation.REMOTE && !StateKeeper.streamingWrite) {
+            // Request permission to download file
+            if (ContextCompat.checkSelfPermission(activity!!, Manifest.permission.WRITE_EXTERNAL_STORAGE)
+                    != PackageManager.PERMISSION_GRANTED) {
+
+                // Permission is not granted
+                ActivityCompat.requestPermissions(activity!!,
+                        arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE),
+                        MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE)
+                return
+            }
+
+
+        }
+        (activity as WizardActivity).goToNewFragment(USBDriveFragment())
+    }
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
+        when (requestCode) {
+            MY_PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE -> {
+                // If request is cancelled, the result arrays are empty.
+                if ((grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
+                    nextStep(activity!!.findViewById(R.id.fragment_layout))
+                } else {
+                    Snackbar.make(activity!!.findViewById(R.id.fragment_layout), getString(R.string.storage_perm_required_explaination), Snackbar.LENGTH_LONG).show()
+                }
+                return
+            }
+
+            else -> {
+            }
+        }
+
+    }
+
+    override fun onFragmentAdded(activity: WizardActivity) {
+        super.onFragmentAdded(activity)
+        setStreamingCheckBoxAvailability(activity)
+    }
+
+    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 getRemoteImageUri(context: WizardActivity): Uri {
+        val text = context.findViewById<EditText>(R.id.img_url_textview).text.toString()
+        return Uri.parse(text)
+    }
+
+    fun updateFileButtonLabel(context: WizardActivity) {
+        val button = context.findViewById<Button>(R.id.pick_file_btn)
+        val uri = StateKeeper.imageFile
+
+        if (uri != null && uri.scheme != null && !uri.scheme!!.startsWith("http")) {
+            val cursor = context.contentResolver.query(uri, null, null, null, null, null)
+
+            try {
+                if (cursor != null && cursor.moveToFirst()) {
+                    button.text = cursor.getString(
+                            cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME))
+                }
+                return
+            } catch (e: RuntimeException) {
+                Log.e(TAG, "Error retrieving file name", e)
+            } finally {
+                cursor?.close()
+            }
+        }
+
+        button.text = getString(R.string.pick_a_file)
+    }
+
+    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
+                updateFileButtonLabel(activity as WizardActivity)
+            }
+        }
+
+    }
+}
diff --git a/app/src/main/java/eu/depau/ddroid/fragments/USBDriveFragment.kt b/app/src/main/java/eu/depau/ddroid/fragments/USBDriveFragment.kt
new file mode 100644
index 0000000..2e8dbcc
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/fragments/USBDriveFragment.kt
@@ -0,0 +1,78 @@
+package eu.depau.ddroid.fragments
+
+import android.os.Bundle
+import android.support.design.widget.Snackbar
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import eu.depau.ddroid.*
+import eu.depau.ddroid.abc.WizardActivity
+import eu.depau.ddroid.abc.WizardFragment
+import eu.depau.ddroid.values.FlashMethod
+import eu.depau.ddroid.values.WizardStep
+import java.nio.file.FileSystems.getFileSystem
+import com.github.mjdev.libaums.UsbMassStorageDevice
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.hardware.usb.UsbManager
+import android.os.Build
+import android.support.annotation.RequiresApi
+import android.support.v4.content.ContextCompat.getSystemService
+
+
+/**
+ * A placeholder fragment containing a simple view.
+ */
+class USBDriveFragment : WizardFragment() {
+    val TAG = "USBDriveFragment"
+    val ACTION_USB_PERMISSION = "eu.depau.ddroid.USB_PERMISSION"
+
+
+    override fun nextStep(view: View) {
+//        if (StateKeeper.flashMethod == null)
+//            Snackbar.make(view, "Please select writing method", Snackbar.LENGTH_LONG).show()
+//        else
+//            (activity as WizardActivity).goToNewFragment(ImageLocationFragment())
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
+                              savedInstanceState: Bundle?): View? {
+        StateKeeper.currentFragment = this
+        StateKeeper.wizardStep = WizardStep.SELECT_USB_DRIVE
+
+        return inflater.inflate(R.layout.fragment_select_usb_drive, container, false)
+    }
+
+    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
+    override fun onButtonClicked(view: View) {
+//        val usbManager = activity!!.getSystemService(Context.USB_SERVICE) as UsbManager
+
+        val devices = UsbMassStorageDevice.getMassStorageDevices(activity)
+
+        for (device in devices) {
+            Log.d(TAG, """USB device ${device.usbDevice.deviceName}
+                | proto ${device.usbDevice.deviceProtocol}
+                | id ${device.usbDevice.deviceId}
+                | class ${device.usbDevice.deviceClass}
+                | subclass ${device.usbDevice.deviceSubclass}
+                | iface count ${device.usbDevice.interfaceCount}
+                | manuf name ${device.usbDevice.manufacturerName}
+                | product name ${device.usbDevice.productName}
+                | id ${device.usbDevice.vendorId}:${device.usbDevice.productId}
+            """.trimMargin())
+//            val permissionIntent = PendingIntent.getBroadcast(activity, 0, Intent(MY_PERMISSIONS_REQUEST_USB_DRIVE), 0)
+//            usbManager.requestPermission(device.usbDevice, permissionIntent)
+//            // before interacting with a device you need to call init()!
+//            device.init()
+//
+//            // Only uses the first partition on the device
+//            val currentFs = device.partitions[0].fileSystem
+//            Log.d(TAG, "Capacity: " + currentFs.capacity)
+//            Log.d(TAG, "Occupied Space: " + currentFs.occupiedSpace)
+//            Log.d(TAG, "Free Space: " + currentFs.freeSpace)
+//            Log.d(TAG, "Chunk size: " + currentFs.chunkSize)
+        }
+    }
+}
diff --git a/app/src/main/java/eu/depau/ddroid/values/FlashMethod.kt b/app/src/main/java/eu/depau/ddroid/values/FlashMethod.kt
new file mode 100644
index 0000000..f7f3d99
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/values/FlashMethod.kt
@@ -0,0 +1,8 @@
+package eu.depau.ddroid.values
+
+enum class FlashMethod {
+    FLASH_API,
+    FLASH_DD,
+    FLASH_UNETBOOTIN,
+    FLASH_WOEUSB
+}
\ No newline at end of file
diff --git a/app/src/main/java/eu/depau/ddroid/values/ImageLocation.kt b/app/src/main/java/eu/depau/ddroid/values/ImageLocation.kt
new file mode 100644
index 0000000..05c2c41
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/values/ImageLocation.kt
@@ -0,0 +1,6 @@
+package eu.depau.ddroid.values
+
+enum class ImageLocation {
+    REMOTE,
+    LOCAL
+}
\ No newline at end of file
diff --git a/app/src/main/java/eu/depau/ddroid/values/WizardStep.kt b/app/src/main/java/eu/depau/ddroid/values/WizardStep.kt
new file mode 100644
index 0000000..e74562b
--- /dev/null
+++ b/app/src/main/java/eu/depau/ddroid/values/WizardStep.kt
@@ -0,0 +1,7 @@
+package eu.depau.ddroid.values
+
+enum class WizardStep {
+    SELECT_FLASH_METHOD,
+    SELECT_LOCATION,
+    SELECT_USB_DRIVE
+}
\ No newline at end of file
diff --git a/app/src/main/res/anim/slide_in_right.xml b/app/src/main/res/anim/slide_in_right.xml
new file mode 100644
index 0000000..e3bea6c
--- /dev/null
+++ b/app/src/main/res/anim/slide_in_right.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set>
+    <translate xmlns:android="http://schemas.android.com/apk/res/android"
+               android:fromXDelta="100%"
+               android:toXDelta="0"
+               android:interpolator="@android:anim/decelerate_interpolator"
+               android:duration="500"/>
+</set>
\ No newline at end of file
diff --git a/app/src/main/res/anim/slide_out_left.xml b/app/src/main/res/anim/slide_out_left.xml
new file mode 100644
index 0000000..3e94368
--- /dev/null
+++ b/app/src/main/res/anim/slide_out_left.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set>
+    <translate xmlns:android="http://schemas.android.com/apk/res/android"
+               android:fromXDelta="0"
+               android:toXDelta="-100%"
+               android:interpolator="@android:anim/decelerate_interpolator"
+               android:duration="500"/>
+</set>
\ No newline at end of file
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..c3903ed
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:aapt="http://schemas.android.com/aapt"
+        android:width="108dp"
+        android:height="108dp"
+        android:viewportHeight="108"
+        android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0"/>
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0"/>
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1"/>
+</vector>
diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..5713f34
--- /dev/null
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,171 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8"/>
+</vector>
diff --git a/app/src/main/res/drawable/ic_navigate_next_black_24dp.xml b/app/src/main/res/drawable/ic_navigate_next_black_24dp.xml
new file mode 100644
index 0000000..0ab6802
--- /dev/null
+++ b/app/src/main/res/drawable/ic_navigate_next_black_24dp.xml
@@ -0,0 +1,5 @@
+<vector android:autoMirrored="true" android:height="24dp"
+    android:tint="#FFFFFF" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M10,6L8.59,7.41 13.17,12l-4.58,4.59L10,18l6,-6z"/>
+</vector>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..3bf3c36
--- /dev/null
+++ b/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,34 @@
+<?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>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_select_flash_method.xml b/app/src/main/res/layout/fragment_select_flash_method.xml
new file mode 100644
index 0000000..4b78ebd
--- /dev/null
+++ b/app/src/main/res/layout/fragment_select_flash_method.xml
@@ -0,0 +1,45 @@
+<?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=".fragments.FlashMethodFragment"
+    tools:showIn="@layout/activity_main">
+
+    <RadioGroup
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <RadioButton
+            android:id="@+id/flash_dd_usb_api_radio"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/flash_dd_usb_api"
+            android:onClick="onRadioButtonClicked"/>
+
+        <RadioButton
+            android:id="@+id/flash_dd_root_radio"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/flash_dd_root"
+            android:onClick="onRadioButtonClicked"/>
+
+        <RadioButton
+            android:id="@+id/flash_unetbootin_radio"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/flash_unetbootin"
+            android:onClick="onRadioButtonClicked"/>
+
+        <RadioButton
+            android:id="@+id/flash_woeusb_radio"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/flash_woeusb"
+            android:onClick="onRadioButtonClicked"/>
+
+    </RadioGroup>
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_select_location.xml b/app/src/main/res/layout/fragment_select_location.xml
new file mode 100644
index 0000000..7b2b8f3
--- /dev/null
+++ b/app/src/main/res/layout/fragment_select_location.xml
@@ -0,0 +1,55 @@
+<?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/use_local_img_radio"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="onRadioButtonClicked"
+            android:text="@string/use_local_image"/>
+
+        <Button
+            android:id="@+id/pick_file_btn"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:enabled="false"
+            android:onClick="onButtonClicked"
+            android:text="@string/pick_a_file"/>
+
+        <RadioButton
+            android:id="@+id/download_img_radio"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="onRadioButtonClicked"
+            android:text="@string/download_image_from_url"/>
+
+        <EditText
+            android:id="@+id/img_url_textview"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:inputType="textUri"
+            android:enabled="false"
+            android:hint="@string/image_url_hint"/>
+
+        <CheckBox
+            android:id="@+id/streaming_write_checkbox"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:checked="false"
+            android:enabled="false"
+            android:onClick="onCheckBoxClicked"
+            android:text="@string/download_streaming"/>
+    </RadioGroup>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_select_usb_drive.xml b/app/src/main/res/layout/fragment_select_usb_drive.xml
new file mode 100644
index 0000000..cc67fb8
--- /dev/null
+++ b/app/src/main/res/layout/fragment_select_usb_drive.xml
@@ -0,0 +1,20 @@
+<?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=".fragments.USBDriveFragment"
+    tools:showIn="@layout/activity_main">
+
+
+
+    <Button
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:onClick="onButtonClicked"
+        android:text="Do USB stuff"/>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/wizard_fragment_layout.xml b/app/src/main/res/layout/wizard_fragment_layout.xml
new file mode 100644
index 0000000..755595d
--- /dev/null
+++ b/app/src/main/res/layout/wizard_fragment_layout.xml
@@ -0,0 +1,6 @@
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:app="http://schemas.android.com/apk/res-auto"
+                android:id="@+id/fragment_layout"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
\ No newline at end of file
diff --git a/app/src/main/res/menu/menu_main.xml b/app/src/main/res/menu/menu_main.xml
new file mode 100644
index 0000000..25feacd
--- /dev/null
+++ b/app/src/main/res/menu/menu_main.xml
@@ -0,0 +1,10 @@
+<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.ddroid.activities.MainActivity">
+    <item
+        android:id="@+id/action_settings"
+        android:orderInCategory="100"
+        android:title="@string/action_settings"
+        app:showAsAction="never"/>
+</menu>
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..bbd3e02
--- /dev/null
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..bbd3e02
--- /dev/null
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..a2f5908
Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 0000000..1b52399
Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.png b/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..ff10afd
Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 0000000..115a4c7
Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..dcd3cd8
Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..459ca60
Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..8ca12fe
Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..8e19b41
Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..b824ebd
Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..4c19a13
Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000..3ab3e9c
--- /dev/null
+++ b/app/src/main/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..59a0b0c
--- /dev/null
+++ b/app/src/main/res/values/dimens.xml
@@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000..f4321ff
--- /dev/null
+++ b/app/src/main/res/values/strings.xml
@@ -0,0 +1,17 @@
+<resources>
+    <string name="app_name">DDroid</string>
+    <string name="action_settings">Settings</string>
+    <string name="download_image_from_url">Download image from URL</string>
+    <string name="use_local_image">Use local image</string>
+    <string name="flash_dd_usb_api">Write image directly to disk (using Android API)</string>
+    <string name="flash_dd_root">Write using dd (requires root)</string>
+    <string name="flash_unetbootin">Unetbootin-style flash (MBR only, requires root)</string>
+    <string name="flash_woeusb">Write Windows image (using WoeUSB, requires root)</string>
+    <string name="download_streaming">Stream directly to USB drive</string>
+    <string name="pick_a_file">Pick a file</string>
+    <string name="image_url_hint">Image URL</string>
+    <string name="provided_url_invalid">Provided URL is invalid</string>
+    <string name="select_image_location">Please select image location</string>
+    <string name="provide_image_file">Please provide an image file</string>
+    <string name="storage_perm_required_explaination">Storage permission required to download images</string>
+</resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..177cefc
--- /dev/null
+++ b/app/src/main/res/values/styles.xml
@@ -0,0 +1,20 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="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>
+    </style>
+
+    <style name="AppTheme.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"/>
+
+</resources>
diff --git a/app/src/test/java/eu/depau/ddroid/ExampleUnitTest.kt b/app/src/test/java/eu/depau/ddroid/ExampleUnitTest.kt
new file mode 100644
index 0000000..9ae7b9b
--- /dev/null
+++ b/app/src/test/java/eu/depau/ddroid/ExampleUnitTest.kt
@@ -0,0 +1,17 @@
+package eu.depau.ddroid
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..adf4e04
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,27 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext.kotlin_version = '1.2.50'
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..743d692
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,13 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# 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.
+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
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..40e5c45
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Sat Aug 11 18:29:21 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
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..cccdd3d
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..f955316
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..e7b4def
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1 @@
+include ':app'