获取圆形图标

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我是靠谱客的博主大方水壶，这篇文章主要介绍获取圆形图标，现在分享给大家，希望可以做个参考。

private Bitmap getRoundCornerImage(Bitmap bitmap) {
  if (bitmap != null) {
   Bitmap oldBitmap = Bitmap.createBitmap(bitmap.getWidth(),
     bitmap.getHeight(), Config.ARGB_8888);
   Canvas canvas = new Canvas(oldBitmap);
   Paint paint = new Paint();
   Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
   RectF rectf = new RectF(rect);
   paint.setAntiAlias(true);
   canvas.drawRoundRect(rectf, bitmap.getWidth() / 5,
     bitmap.getHeight() / 5, paint);
   paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
   canvas.drawBitmap(bitmap, null, rect, paint);
   return oldBitmap;
  } else {
   return null;
  }