Android中Drawable与Bitmap相互转换的方法

1..Bitmap转Drawable

Drawable drawable =new BitmapDrawable(bmp);

 

 

2.Drawable转Bitmap

Resources res=getResources();

Bitmap bmp=BitmapFactory.decodeResource(res, R.drawable.sample_0);
Resources res=getResources();
private byte[] Bitmap2Bytes(Bitmap bm){

3、Drawable 转 Bitmap

public static Bitmap drawableToBitmap(Drawable drawable) {

       

        Bitmap bitmap = Bitmap.createBitmap(

                                        drawable.getIntrinsicWidth(),

                                        drawable.getIntrinsicHeight(),

                                        drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.A