<uses-permission android:name = "android.permission.SET_WALLPAPER"/>
壁纸设置方法有三种:
第一 通过WallpaperManager方法中的 setBitmap()
第二 通过WallpaperManager方法中的 setResource()
第三 通过ContextWrapper 类中提供的setWallpaper()方法
由于 Activity 继承ContextThemeWrapper ,ContextThemeWrapper继承 ContextWrapper.
<1>通过实例化WallpaperManager 类调用单例类中setBitmap()方法。
package xiaosi.Wallpaper; import java.io.IOException; import android.app.Activity; import android.app.WallpaperManager; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.widget.Toast; public class WallpaperActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); WallpaperManager wallpaperManager = WallpaperManager.getInstance(this); Resources res = getResources(); Bitmap bitmap=BitmapFactory.decodeResource(res,R.drawable.h); try { wallpaperManager.setBitmap(bitmap); } catch (IOException e) { e.printStackTrace(); } }
第二种方法:通过WallpaperManager方法中的 setResource()
WallpaperManager wallpaperManager = WallpaperManager.getInstance(this); try { wallpaperManager.setResource(getResources().getIdentifier("wallpaper" + imagePosition, "drawable", "com.ch")); Toast.makeText(this, "设置成功", Toast.LENGTH_SHORT).show(); } catch (IOException e) { e.printStackTrace(); }
第三种方法:通过ContextWrapper 类中提供的setWallpaper()方法
//重写ContextWrapper中setWallpaper()方法 public void setWallpaper(InputStream paramInputStream) throws IOException { super.setWallpaper(paramInputStream); Toast.makeText(this, "设置成功", 1).show(); } //设置壁纸代码 Resources localResources = getBaseContext().getResources(); InputStream localInputStream2 = localResources .openRawResource(getResources().getIdentifier( "wallpaper" + imagePosition, "drawable", "com.ch")); try { setWallpaper(localInputStream2); } catch (IOException e) { e.printStackTrace(); }