使用方法 RelativeLayout RL_main = (RelativeLayout)findViewById(R.id.activity_main); Drawable oldbg = RL_main.getBackground();//获得背景图片 // 将Drawable,转成Bitmap bg_bitmap = ((BitmapDrawable) oldbg).getBitmap(); Bitmap blur_bitmap = com.example.administrator.text2.util.EasyBlur.with(MainActivity.this)