如何在自定义相机应用程序中更改输出图片方向？ [Android]产品

Question

在风景中一切正常但如果我垂直拿着手机，输出图片仍处于横向模式。有什么帮助吗？

我尝试按照建议使用此代码，但无论我如何拿着手机，我得到的唯一方向是ORIENTATION_NORMAL。

ExifInterface ei = new ExifInterface(photoPath);
int orientation = ei.getAttributeInt(ExifInterface.TAG_ORIENTATION,         ExifInterface.ORIENTATION_NORMAL);

switch(orientation) {
case ExifInterface.ORIENTATION_ROTATE_90:
    rotateImage(bitmap, 90);
    break;
case ExifInterface.ORIENTATION_ROTATE_180:
    rotateImage(bitmap, 180);
    break;
// etc.
}

的onCreate：

 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


    View decorView = getWindow().getDecorView();
    i = 0;

    // Hide the status bar.
    int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
    decorView.setSystemUiVisibility(uiOptions);


    // Create an instance of Camera
    mCamera = getCameraInstance();

    //Setparams just sets the focus mode and picture size
    setParams();


    // Create our Preview view and set it as the content of our activity.
    mPreview = new CameraPreview(this, mCamera);
    FrameLayout preview = (FrameLayout)    findViewById(R.id.camera_preview);
    preview.addView(mPreview);


    //Capture click listener
    Button captureButton = (Button) findViewById(R.id.button_capture);
    captureButton.setOnClickListener(
            new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mCamera.takePicture(null,null,mPicture);
                    Log.d("TAG", "Picture 0 taken");
                }
            }
    );


}

onPictureTaken： - 应用程序需要5张图片将它们一个接一个地保存为jpegs，然后在asyncTask中创建一个带有它们的gif。唯一的一点是，无论您如何握住手机，它都会以横向模式保存所有图片。

private Camera.PictureCallback mPicture = new Camera.PictureCallback() {

    @Override
    public void onPictureTaken(byte[] data, Camera camera) {

        File pictureFile = getOutputMediaFile(MEDIA_TYPE_IMAGE, i);
        if (pictureFile == null) {
            Log.d(TAG, "Error creating media file, check storage permissions: "
            );
            return;
        }

        try {
            FileOutputStream fos = new FileOutputStream(pictureFile);
            fos.write(data);
            fos.close();
        } catch (FileNotFoundException e) {
            Log.d(TAG, "File not found: " + e.getMessage());
        } catch (IOException e) {
            Log.d(TAG, "Error accessing file: " + e.getMessage());
        }
        i++;

        //starts camera preview after taking picture
        mCamera.startPreview();

        if(i<5){
            mCamera.takePicture(null,null,mPicture);
            Log.d("TAG", "Picture taken" + i);
        }

        if(i==5){
            new asyncGIF().execute();
            i=0;
        }
    }
};