/**	 * 给bitmap画圆角	 * 	 * @param bitmap	 *            bitmap对象	 * @param roundPX	 *            圆角的角度	 * @return 画好圆角后的bitmap对象	 */	public static Bitmap roundBitmap(Bitmap bitmap, float roundPX) {		try {						final int width = bitmap.getWidth();			final int height = bitmap.getHeight();			Bitmap outputBitmap = Bitmap.createBitmap(bitmap.getWidth(),					bitmap.getHeight(), Config.ARGB_8888);			Canvas canvas = new Canvas(outputBitmap);			final Paint paint = new Paint();			final Rect rect = new Rect(0, 0, width, height);			final RectF rectF = new RectF(rect);						paint.setAntiAlias(true);			paint.setFilterBitmap(true);			canvas.drawARGB(0, 0, 0, 0);			paint.setColor(Color.WHITE);			canvas.drawRoundRect(rectF, roundPX, roundPX, paint);			final PorterDuffXfermode pdx = new PorterDuffXfermode(					PorterDuff.Mode.SRC_IN);			paint.setXfermode(pdx);						canvas.drawBitmap(bitmap, rect, rect, paint);			bitmap.recycle();			return outputBitmap;		} catch (Exception e) {			return bitmap;		}	}

给图片切圆角