解决圆角bitmap保存时背景为黑色

1.
cropBitmap.copy(Bitmap.Config.ARGB_8888, true);
cropBitmap.compress(Bitmap.CompressFormat.PNG, 100, bos);//格式要为png
2.

private Bitmap getBitmap(Bitmap bitmap){
    Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(newBitmap);
    canvas.drawColor(Color.TRANSPARENT);
    Paint paint = new Paint();
    canvas.drawBitmap(bitmap, 0, 0, paint);
    return newBitmap;
}

解决圆角bitmap保存时背景为黑色

原文：https://www.cnblogs.com/Jieth/p/10614014.html