BitmapUtil.java 文件源码

/**
 * 两张图片合成一张图片圆角的图片 . <br>
 * @author liulongzhenhai 2013-10-28 上午11:24:15 <br>
 * @param outBitmap1 背景图片
 * @param bitmap 要生成圆角的图片
 * @return Bitmap Bitmap
 */
public static Bitmap getRoundedCornerBitmap(final Bitmap outBitmap1, final Bitmap bitmap) {
    final int sm = 0;
    // Log.w("outHeight",outBitmap.getHeight()+","+outBitmap.getWidth());
    final Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
    final Canvas canvas = new Canvas(outBitmap);
    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(sm, sm, bitmap.getWidth() - sm, bitmap.getHeight() - sm);
    final RectF rectF = new RectF(rect);
    final float roundPX = bitmap.getWidth() / 2;
    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 outBitmap;
}