private Bitmap resizeImage(Bitmap originalBitmap, int newWidth, int newHeight){
        int width = originalBitmap.getWidth();       int height = originalBitmap.getHeight();       //定义欲转换成的宽、高 //       int newWidth = 200; //       int newHeight = 200;       //计算宽、高缩放率       float scanleWidth = (float)newWidth/width;       float scanleHeight = (float)newHeight/height;       //创建操作图片用的matrix对象 Matrix       Matrix matrix = new Matrix();       // 缩放图片动作       matrix.postScale(scanleWidth,scanleHeight);   //两个参数为宽度和高度的缩放       //旋转图片 动作       //matrix.postRotate(45);       // 创建新的图片Bitmap       Bitmap resizedBitmap = Bitmap.createBitmap(originalBitmap,0,0,width,height,matrix,true);       return resizedBitmap;    }