我是 android 新手。我有一个应用程序,它具有从图库上传图像或从相机拍摄图像的功能。下面我编写了获取图像的代码。
@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(resultCode!=0){
            if(PICK_MEDIA_FROM_GALLERY == requestCode){
                if(null != data){
                    Uri uri = data.getData();
                    //String type = getMimeType(uri);
                    filePath =   getRealPathFromURI(uri);
                    checkFileSupport(filePath);
                    }
                }else{
                    if(ACTION_TAKE_PHOTO == requestCode){           
                        checkFileSupport(filePath);
                    }else if(ACTION_TAKE_VIDEO == requestCode){
                        handleCameraVideo();
                    }
                }
        }
    }
此函数用于固定图像的写入方向。
        public Bitmap fixOrientation(Bitmap bmp) {
    try {
        ExifInterface exif = new ExifInterface(filePath);
        int orientation = exif.getAttributeInt(
                ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_NORMAL);
        if (orientation==6)
        {
            Matrix matrix = new Matrix();
            matrix.postRotate(90);
            bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
        }
        else if (orientation==8)
        {
            Matrix matrix = new Matrix();
            matrix.postRotate(270);
            bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
        }
        else if (orientation==3)
        {
            Matrix matrix = new Matrix();
            matrix.postRotate(180);
            bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
        }
        } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        }
    return bmp;
}
我使用该功能将 Image 设置为 imageview
      private void setImagePreview(final String realPath) throws IOException {
        Display display = getWindowManager().getDefaultDisplay();
        Bitmap bitmap = ImageUtils.getThumbnailBitmap(realPath, display.getWidth());
        if(null!=bitmap){
        //rotate image and save in the same filepath
            bitmap = fixOrientation(bitmap);
            FileOutputStream  fOut = new FileOutputStream(filePath);
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fOut);
            fOut.flush();
            fOut.close();
            RelativeLayout tempLayout = (RelativeLayout) findViewById(R.id.previewLayout);
            tempLayout.setVisibility(View.VISIBLE);
            ImageView previewImageView = (ImageView) findViewById(R.id.previewImageView);
            previewImageView.setImageBitmap(bitmap);
}
}
我在相机中有一张图像。
当我第一次从图库中选择该图像时,
当我尝试更改附件并选择同一张图片时,视图如下所示

我该如何解决这个问题?谁能帮帮我?