Android图片加水印

来源：互联网发布：淘宝数据采集器破解版编辑：程序博客网时间：2024/06/05 07:53

今天在项目中遇到一个问题，就是在图片上加上水印效果，刚拿到想过，很蒙圈，现在解决了，记录一下demo.

生成图片水印的过称步骤：载入原始图片，载入水印图片，保存新的图片

public class CreateBitmap{

   public static Bitmap CreateBitmap(Bitmap src,Bitmap watermark){
       if(src ==null){
         return null;


       }

       int w = src.getWidth();
       int height = src.getHeight();
       int ww =watermark.getWidth();
       int wh = watermark.getHeight();

       //create the new blank bitmap

       Bitmap newBitmap = Bitmap.createBitmap(w,h,Bitmap.Config.ARGB_8888);
       Pain p = new Pain();
       Canvas cv = new Canvas(newBitmap);
       cv.drawBitmap(src,0,0,p)//在0.0坐标开始画入水印
        cv.drawBitmap( watermark, w - ww -200, h - wh - 240, p );//在src的右下角画入水印

//        cv.drawBitmap(watermark,30,30,p);//在src的右下角画入水印
        //save all clip
        cv.save( Canvas.ALL_SAVE_FLAG );//保存
        //store
        cv.restore();//存储
        return newb;

    }

}

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