设置壁纸的三种方法

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这种方法比较快 1秒之内
File file =new File ("");
    try {
InputStream fis=  new FileInputStream(file);
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}

Resources localResources = getBaseContext().getResources();
InputStream localInputStream2 = localResources
.openRawResource(getResources().getIdentifier(
"wallpaper" + imagePosition, "drawable", "com.ch"));
try {

wallpaperManager.setStream(localInputStream2);
} catch (IOException e) {
e.printStackTrace();
}



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    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(); 
}





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最慢 大约要7 8 秒
WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
try {

wallpaperManager.setResource(getResources().getIdentifier("wallpaper" + imagePosition, "drawable", "com.ch"));
                Resources res = getResources();
                Bitmap bitmap=BitmapFactory.decodeResource(res, getResources().getIdentifier("wallpaper" + imagePosition, "drawable", "com.ch"));
                wallpaperManager.setBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}