andoid adaptive icon support

android/app/build.gradle

@@ -48,6 +48,7 @@ android {
         targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
+        multiDexEnabled true
     }
 
     buildTypes {
@@ -65,4 +66,5 @@ flutter {
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'com.android.support:multidex:1.0.3'
 }

android/app/src/main/java/io/flutter/app/FlutterMultiDexApplication.java

@@ -0,0 +1,20 @@
+// Generated file.
+// If you wish to remove Flutter's multidex support, delete this entire file.
+
+package io.flutter.app;
+
+import android.content.Context;
+import androidx.annotation.CallSuper;
+import androidx.multidex.MultiDex;
+
+/**
+ * Extension of {@link io.flutter.app.FlutterApplication}, adding multidex support.
+ */
+public class FlutterMultiDexApplication extends FlutterApplication {
+  @Override
+  @CallSuper
+  protected void attachBaseContext(Context base) {
+    super.attachBaseContext(base);
+    MultiDex.install(this);
+  }
+}

android/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="@color/ic_launcher_background"/>
+  <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

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

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#ffffff</color>
+</resources>

pubspec.yaml

@@ -3,7 +3,7 @@ description: A lightweight free Spotify desktop-client which handles playback ma
 
 # The following line prevents the package from being accidentally published to
 # pub.dev using `flutter pub publish`. This is preferred for private packages.
-publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+publish_to: "none" # Remove this line if you wish to publish to pub.dev
 
 # The following defines the version and build number for your application.
 # A version number is three numbers separated by dots, like 1.2.43
@@ -30,7 +30,6 @@ dependencies:
   flutter:
     sdk: flutter
 
-
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
@@ -76,7 +75,6 @@ dev_dependencies:
 
 # The following section is specific to Flutter.
 flutter:
-
   # The following line ensures that the Material Icons font is
   # included with your application, so that you can use the icons in
   # the material Icons class.
@@ -121,7 +119,8 @@ msix_config:
   logo_path: .\assets\spotube-logo.png
   capabilities: "internetClient,internetClientServer,backgroundMediaPlayback"
 
-
 flutter_icons:
   android: true
   image_path: "assets/spotube-logo.png"
+  adaptive_icon_foreground: "assets/spotube-logo-foreground.png"
+  adaptive_icon_background: "#ffffff"