BitmapUtil.java 文件源码

/**
 * 获得圆角图片 . <br>
 * @author liulongzhenhai 2012-8-1 下午5:24:57 <br>
 * @param bitmap 图片
 * @param roundPx 圆角度
 * @return 图片
 */
public static Bitmap getRoundedCornerBitmap(final Bitmap bitmap, final float roundPx) {
    final int w = bitmap.getWidth();
    final int h = bitmap.getHeight();
    final Bitmap output = Bitmap.createBitmap(w, h, Config.ARGB_8888);
    final Canvas canvas = new Canvas(output);
    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, w, h);
    final RectF rectF = new RectF(rect);
    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    return output;
}