版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/q714093365/article/details/76228534
图片资源转化为Bitmap的多种方法,总有一款是你需要的
方法1:
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.mingchuseal, newOpts);方法2:
Drawable drawable = getResources().getDrawable(R.mipmap.mingchuseal);
BitmapDrawable bd = (BitmapDrawable) drawable;
final Bitmap bmm = bd.getBitmap();
InputStream is = getResources().openRawResource(R.drawable.icon);
Bitmap mBitmap = BitmapFactory.decodeStream(is);
Bitmap bmp=BitmapFactory.decodeResource(r, R.drawable.icon);
Bitmap newb = Bitmap.createBitmap( 300, 300, Config.ARGB_8888 );
Resources r = this.getContext().getResources();
Inputstream is = r.openRawResource(R.drawable.my_background_image);
BitmapDrawable bmpDraw = new BitmapDrawable(is);
Bitmap bmp = bmpDraw.getBitmap();