android开发给图片添加水印，水印中包含图片或者图标_android pictureselector 设置水印

之前写过一篇文章，给图片增加水印，不过那个是增加纯文本水印，今天介绍的是以图片叠加的那个是来增加水印。

国际惯例，上代码：

private String getWaterMask(String pic) {
        Bitmap bitmap = ImageUtil.fileInputStream(pic);
        int degree = ImageLoadUtil.readPictureDegree(pic);
        if (bitmap != null) {
            String content = "时    间：" + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date())
                    +"\n\n区域位置："+StringUtils.getTextNotNull(getIntentProcessName());
 
            View inflate = View.inflate(getActivity(), R.layout.view_water_mark, null);
            TextView tv_title=inflate.findViewById(com.haocang.base.R.id.tv_title);
            TextView tv_content=inflate.findViewById(com.haocang.base.R.id.tv_content);
            tv_title.setText(StringUtils.getTextString(getIntentOrgName()));
            tv_content.setText(content);
 
            Bitmap map = ImageLoadUtil.addTextWatermarkNew(bitmap, inflate, 100, bitmap.getHeight(), true, content, degree);
            File file = FileUtils.saveBitmapFile(map);
            return file.getPath();
        }
        return pic;   //如果异常返回原图片
    }
 
public static Bitmap addTextWatermarkNew(Bitmap src, View markerView, float x, float y, boolean recycle, String text, int rotateDegree) {
        Objects.requireNonNull(src, "src is null");
        Bitmap ret = null;
        if (rotateDegree == 0) {
            ret = src.copy(src.getConfig(), true);
        } else {
            Matrix matrix = new Matrix();
            matrix.postRotate(rotateDegree);
            ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
        }
        Bitmap marker=viewToBitMap(markerView);
        Canvas canvas = new Canvas(ret);
        canvas.translate(x, y-markerView.getHeight()-100);
        canvas.drawBitmap(marker,0,0,null);
//        canvas.drawBitmap(bitmap, 0, 0, null);//绘制小图片使用的代码
        if (recycle && !src.isRecycled()) src.recycle();
        return ret;
    }
 
    public static Bitmap viewToBitMap(@NonNull View view) {
        int measureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
        view.measure(measureSpec, measureSpec);
        //由于是生成的，未进行测量，所有需要进行measure操作
        int measuredWidth = view.getMeasuredWidth();
        int measuredHeight = view.getMeasuredHeight();
 
        view.layout(0, 0, measuredWidth, measuredHeight);
        Bitmap bitmap = Bitmap.createBitmap(measuredWidth, measuredHeight, Bitmap.Config.ARGB_8888);
        bitmap.eraseColor(Color.TRANSPARENT);
        Canvas canvas = new Canvas(bitmap);
        view.draw(canvas);
        return bitmap;
    }

以上就是完整代，总体思路就是在图片上画一张图片，这里的图片是用控件绘制生成的图片来作为水印，相较于单纯图片稍微复杂一点，也算是一种记录。

需要用到的朋友可以直接使用。