Add adaptive icons! (#851)

Author: SUPERCILEX

app/src/main/AndroidManifest.xml

@@ -12,7 +12,8 @@
         android:label="@string/app_name"
         android:allowBackup="true"
         android:fullBackupContent="true"
-        android:icon="@drawable/ic_launcher"
+        android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         tools:ignore="GoogleAppIndexingWarning">

app/src/main/res/drawable/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="@android:color/white"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

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

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -3,7 +3,7 @@
     <shortcut
         android:shortcutId="storage"
         android:enabled="true"
-        android:icon="@drawable/ic_launcher"
+        android:icon="@mipmap/ic_launcher"
         android:shortcutShortLabel="@string/name_image">
         <intent
             android:action="android.intent.action.VIEW"
@@ -25,7 +25,7 @@
     <shortcut
         android:shortcutId="database"
         android:enabled="true"
-        android:icon="@drawable/ic_launcher"
+        android:icon="@mipmap/ic_launcher"
         android:shortcutShortLabel="@string/name_chat">
         <intent
             android:action="android.intent.action.VIEW"

app/src/main/res/mipmap-hdpi/ic_launcher.png

@@ -77,6 +77,7 @@ android {
         // using Java 8 nio packages. Safely downgrading them to warning.
         // https://github.com/square/okio/issues/58
         disable 'InvalidPackage',
+                'IconLauncherFormat', 'IconExpectedSize', // TODO remove with 3.0 Gradle Plugin
                 'NewerVersionAvailable', 'GradleDependency' // For reproducible builds
 
         baseline file("$configDir/lint-baseline.xml")