Bitmap src = BitmapFactory.decodeResource(getResources(), imageId); //獲取Bitmap圖片
RoundedBitmapDrawable roundedBitmapDrawable = RoundedBitmapDrawableFactory.create(getResources(), src); //創(chuàng)建RoundedBitmapDrawable對象
roundedBitmapDrawable.setCornerRadius(100); //設置圓角半徑（根據(jù)實際需求）
roundedBitmapDrawable.setAntiAlias(true); //設置反走樣
image.setImageDrawable(roundedBitmapDrawable); //顯示圓角圖片 

Bitmap src = BitmapFactory.decodeResource(getResources(), imageId);
Bitmap dst;
//將長方形圖片裁剪成正方形圖片
if (src.getWidth() >= src.getHeight()){
dst = Bitmap.createBitmap(src, src.getWidth()/2 - src.getHeight()/2, 0, src.getHeight(), src.getHeight()
);
}else{
dst = Bitmap.createBitmap(src, 0, src.getHeight()/2 - src.getWidth()/2, src.getWidth(), src.getWidth()
);
}
RoundedBitmapDrawable roundedBitmapDrawable = RoundedBitmapDrawableFactory.create(getResources(), dst);
roundedBitmapDrawable.setCornerRadius(dst.getWidth() / 2); //設置圓角半徑為正方形邊長的一半
roundedBitmapDrawable.setAntiAlias(true);
image.setImageDrawable(roundedBitmapDrawable);