Go home after setting the wallpaper

+ On Android N and above use the new API to set both the general system wallpaper and the lock-screen-specific wallpaper

app/build.gradle

@@ -7,8 +7,8 @@ android {
         applicationId "com.appgramming.lonecolor"
         minSdkVersion 11
         targetSdkVersion 24
-        versionCode 4
-        versionName '1.2'
+        versionCode 5
+        versionName '2.0-beta'
     }
     buildTypes {
         release {

app/src/main/AndroidManifest.xml

@@ -1,15 +1,18 @@
 <?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="com.appgramming.lonecolor">
 
     <uses-permission android:name="android.permission.SET_WALLPAPER"/>
 
     <application
+        android:fullBackupContent="true"
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:installLocation="auto"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme">
+        android:theme="@style/AppTheme"
+        tools:ignore="GoogleAppIndexingWarning">
         <activity
             android:name=".StartActivity"
             android:excludeFromRecents="true"

app/src/main/java/com/appgramming/lonecolor/LoneColorWallpaperService.java

@@ -12,6 +12,7 @@
 import android.content.Intent;
 import android.graphics.Bitmap;
 import android.graphics.Color;
+import android.os.Build;
 
 /**
  * An {@link IntentService} subclass for changing the current system wallpaper to a bitmap
@@ -47,6 +48,7 @@ public class LoneColorWallpaperService extends IntentService {
     /**
      * Creates the LoneColorWallpaperService IntentService.
      */
+    @SuppressWarnings("WeakerAccess")
     public LoneColorWallpaperService() {
         super("LoneColorWallpaperService");
     }
@@ -62,6 +64,17 @@ public static void setColorWallpaper(Context context, int color) {
         context.startService(intent);
     }
 
+    /**
+     * Returns a mutable 1px x 1px bitmap filled with the specified color.
+     *
+     * @param color The color to fill the bitmap
+     */
+    private static Bitmap createColorBitmap(int color) {
+        final Bitmap colorBitmap = Bitmap.createBitmap(ONE_PIXEL, ONE_PIXEL, Bitmap.Config.ARGB_8888);
+        colorBitmap.eraseColor(color);
+        return colorBitmap;
+    }
+
     /**
      * Do the actual work on the worker thread: create, fill and set the color wallpaper.
      *
@@ -82,29 +95,26 @@ protected void onHandleIntent(Intent intent) {
             final Bitmap colorBitmap = createColorBitmap(color);
 
             // Set the wallpaper
-            wpManager.setBitmap(colorBitmap);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                // On Android N and above use the new API to set both the general system wallpaper and
+                // the lock-screen-specific wallpaper
+                wpManager.setBitmap(colorBitmap, null, true, WallpaperManager.FLAG_SYSTEM | WallpaperManager.FLAG_LOCK);
+            } else {
+                wpManager.setBitmap(colorBitmap);
+            }
 
             // Success: copy the color code to the clipboard
             statusOK(color);
 
+            Utils.goHome(this);
+
         } catch (Exception e) {
             // Write the stack trace to System.err and copy the reason of the failure to clipboard
             e.printStackTrace();
             statusFailure(e.toString());
         }
     }
 
-    /**
-     * Returns a mutable 1px x 1px bitmap filled with the specified color.
-     *
-     * @param color  The color to fill the bitmap
-     */
-    private static Bitmap createColorBitmap(int color) {
-        final Bitmap colorBitmap = Bitmap.createBitmap(ONE_PIXEL, ONE_PIXEL, Bitmap.Config.ARGB_8888);
-        colorBitmap.eraseColor(color);
-        return colorBitmap;
-    }
-
     /**
      * Copy a text to clipboard.
      *

app/src/main/java/com/appgramming/lonecolor/Utils.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2014-2016 Appgramming. All rights reserved.
+ * http://www.appgramming.com
+ */
+package com.appgramming.lonecolor;
+
+import android.content.Context;
+import android.content.Intent;
+
+/**
+ * Static utility methods.
+ */
+class Utils {
+
+    /**
+     * Goes home.
+     */
+    static void goHome(Context context) {
+        Intent startMain = new Intent(Intent.ACTION_MAIN);
+        startMain.addCategory(Intent.CATEGORY_HOME);
+        startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        context.startActivity(startMain);
+    }
+}