ImageUtils.java 文件源码

/**
 * 添加图片水印
 *
 * @param src       源图片
 * @param watermark 图片水印
 * @param x         起始坐标x
 * @param y         起始坐标y
 * @param alpha     透明度
 * @param recycle   是否回收
 * @return 带有图片水印的图片
 */
public static Bitmap addImageWatermark(Bitmap src, Bitmap watermark, int x, int y, int alpha, boolean recycle) {
    if (isEmptyBitmap(src)) return null;
    Bitmap ret = src.copy(src.getConfig(), true);
    if (!isEmptyBitmap(watermark)) {
        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        Canvas canvas = new Canvas(ret);
        paint.setAlpha(alpha);
        canvas.drawBitmap(watermark, x, y, paint);
    }
    if (recycle && !src.isRecycled()) src.recycle();
    return ret;
}