Android 设置静态和动态壁纸

静态：

　　　　　　　　 WallpaperManager wallpaperManager = WallpaperManager.getInstance(getActivity());
               try {
                   wallpaperManager.setResource(getResources().getIdentifier("anim", "drawable", "com.example.asus.newjyjsproject"));
                   Toast.makeText(getActivity(), "设置成功", Toast.LENGTH_SHORT).show();
               } catch (IOException e) {
                   e.printStackTrace();
               }

动态：

首先实现 WallpaperService 服务

public class GIFWallpaperService3 extends WallpaperService {

    @Override
    public Engine onCreateEngine() {
        try {
            Movie movie = Movie.decodeStream(
                    getResources().getAssets().open("bb.gif"));

            return new GIFWallpaperEngine(movie);
        }catch(IOException e){
            Log.d("GIF", "Could not load asset");
            return null;
        }
    }

    private class GIFWallpaperEngine extends Engine {

        private final int frameDuration = 20;

        private SurfaceHolder holder;
        private Movie movie;
        private boolean visible;
        private Handler handler;

        public GIFWallpaperEngine(Movie movie) {
            this.movie = movie;
            handler = new Handler();
        }

        @Override
        public void onCreate(SurfaceHolder surfaceHolder) {
            super.onCreate(surfaceHolder);
            this.holder = surfaceHolder;
        }

        private Runnable drawGIF = new Runnable() {
            public void run() {
                draw();
            }
        };


        private void draw() {
            if (visible) {
    　　　　　　　// 自适应屏幕
                WindowManager wm = (WindowManager) getSystemService(
                        Context.WINDOW_SERVICE);
                DisplayMetrics metrics = new DisplayMetrics();
                wm.getDefaultDisplay().getMetrics(metrics);
                int width  = metrics.widthPixels;
                int height = metrics.heightPixels;
                Canvas canvas = holder.lockCanvas();
                canvas.save();
                    // Adjust size and position so that
                    // the image looks good on your screen
                int w = movie.width();
                int h = movie.height();

                float scaleWight = ((float)width)/w;
                float scaleHeight = ((float)height)/h;

                canvas.scale(scaleWight, scaleHeight);

                movie.draw(canvas, 0, 0);
                canvas.restore();
                holder.unlockCanvasAndPost(canvas);
                movie.setTime((int) (System.currentTimeMillis() % movie.duration()));

                handler.removeCallbacks(drawGIF);
                handler.postDelayed(drawGIF, frameDuration);
            }
        }

        @Override
        public void onVisibilityChanged(boolean visible) {
            this.visible = visible;
            if (visible) {
                handler.post(drawGIF);
            } else {
                handler.removeCallbacks(drawGIF);
            }
        }

        @Override
        public void onDestroy() {
            super.onDestroy();
            handler.removeCallbacks(drawGIF);
        }
    }
}    

在配置文件中注册：

<service
            android:name=".GIFWallpaperService"
            android:enabled="true"
            android:label="路灯"
            android:permission="android.permission.BIND_WALLPAPER" >
            <intent-filter>
                <action android:name="android.service.wallpaper.WallpaperService"/>
            </intent-filter>
            <meta-data
                android:name="android.service.wallpaper"
                android:resource="@xml/livepaper" >
            </meta-data>
        </service>

在res/xml下创建文件 livepaper.xml

<?xml version="1.0" encoding="UTF-8"?>
<wallpaper
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:label="GIF Wallpaper"
    android:thumbnail="@drawable/aac">
</wallpaper>

最后在Activity中调用系统壁纸：

 findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent chooseIntent = new Intent(Intent.ACTION_SET_WALLPAPER);
                // 启动系统选择应用
                Intent intent = new Intent(Intent.ACTION_CHOOSER);
                intent.putExtra(Intent.EXTRA_INTENT, chooseIntent);
                intent.putExtra(Intent.EXTRA_TITLE, "选择动态壁纸");
                startActivity(intent);
            }
        });