private static Bitmap AddTimeWatermark(Bitmap mBitmap) {//获取原始图片与水印图片的宽与高int mBitmapWidth = mBitmap.getWidth();int mBitmapHeight = mBitmap.getHeight();Bitmap mNewBitmap = Bitmap.createBitmap(mBitmapWidth, mBitmapHeight, Bitmap.Config.ARGB_8888);Canvas mCanvas = new Canvas(mNewBitmap);//向位图中开始画入MBitmap原始图片mCanvas.drawBitmap(mBitmap,0,0,null);//添加文字Paint mPaint = new Paint();String mFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss EEEE").format(new Date());//String mFormat = TingUtils.getTime()+"\n"+" 纬度:"+GpsService.latitude+"  经度:"+GpsService.longitude;mPaint.setColor(Color.RED);mPaint.setTextSize(20);//水印的位置坐标mCanvas.drawText(mFormat, (mBitmapWidth * 1) / 10,(mBitmapHeight*14)/15,mPaint);mCanvas.save(Canvas.ALL_SAVE_FLAG);mCanvas.restore();return mNewBitmap;
}

添加了时间的bitmap