How to prevent Camera app to change orientation to landscape in Android?

Question

I've used the camera native app through my app for taking picture. I've used the below code for display the camera app in portrait mode only.

Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
takePictureIntent.putExtra(MediaStore.EXTRA_SCREEN_ORIENTATION,
                ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
startActivityForResult(takePictureIntent, actionCode);

But, it's not working with the above code.

Any suggestions will be appreciated :-)

score 3 · Answer 1 · answered Oct 26 '15 at 10:12

3

You can't control the orientation of an external application that you launch, so there is no way to do this. But you could create your own camera activity.

answered Oct 26 '15 at 10:12

Leif Magnusson

31
3

E.Abdel · Answer 2 · 2015-10-26T10:21:21.963

considering your mCamera as your Camera, you can create your camera activity, set à cameraPReview and set the preview in protrait mode by adding mCamera.setDisplayOrientation(90); before starting preview

here is an example for camera preview in a FrameLayout in potrait mode:

public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback {
    private SurfaceHolder mHolder;
    private Camera mCamera;

    public CameraPreview(Context context, Camera camera) {
        super(context);
        mCamera = camera;

        // Install a SurfaceHolder.Callback so we get notified when the
        // underlying surface is created and destroyed.
        mHolder = getHolder();
        mHolder.addCallback(this);
        // deprecated setting, but required on Android versions prior to 3.0
        mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    }

    public void surfaceCreated(SurfaceHolder holder) {
        // The Surface has been created, now tell the camera where to draw the preview.
        try {
            if(mCamera!=null){
            mCamera.setPreviewDisplay(holder);
            mCamera.setDisplayOrientation(90);
            mCamera.startPreview();}
        } catch (IOException e) {
        }
    }

    public void surfaceDestroyed(SurfaceHolder holder) {
        // empty. Take care of releasing the Camera preview in your activity.
    }

    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
        // If your preview can change or rotate, take care of those events here.
        // Make sure to stop the preview before resizing or reformatting it.

        if (mHolder.getSurface() == null) {
            // preview surface does not exist
            return;
        }

        // stop preview before making changes
        try {
            mCamera.stopPreview();
        } catch (Exception e) {
            // ignore: tried to stop a non-existent preview
        }

        // set preview size and make any resize, rotate or
        // reformatting changes here

        // start preview with new settings
        try {
            mCamera.setPreviewDisplay(mHolder);
            mCamera.startPreview();

        } catch (Exception e) {
        }
    }

and you set the preview from your MainActivity like below :

mPreview = new CameraPreview(getApplicationContext(), camera);
        preview.addView(mPreview);

Thanks @E.Abdel ! This code you suggested for Custom Camera right? But i want to make use of native camera app. — Polam Naganji, Oct 26 '15 at 14:21
you can't change configurations of another app, try to create your own camera activity it's easy — E.Abdel, Oct 27 '15 at 16:12

prat · Answer 3 · 2015-10-26T10:27:22.473

Please go through the android developer link:

http://developer.android.com/guide/topics/media/camera.html#capture-video

By default the orientation of camera preview is landscape. Please check this:

Note: A camera preview does not have to be in landscape mode. Starting in Android 2.2 (API Level 8), you can use the setDisplayOrientation() method to set the rotation of the preview image. In order to change preview orientation as the user re-orients the phone, within the surfaceChanged() method of your preview class, first stop the preview with Camera.stopPreview() change the orientation and then start the preview again with Camera.startPreview().

You could also refer to Camera.Parameters.setRotation() for more info.

or you could call mediaRecorder.setOrientationHint(rotation) when recording video.

Also If you want to make the camera image show in the same orientation as the display, you can use the following code.

public static void setCameraDisplayOrientation(Activity activity,
         int cameraId, android.hardware.Camera camera) {
     android.hardware.Camera.CameraInfo info =
             new android.hardware.Camera.CameraInfo();
     android.hardware.Camera.getCameraInfo(cameraId, info);
     int rotation = activity.getWindowManager().getDefaultDisplay()
             .getRotation();
     int degrees = 0;
     switch (rotation) {
         case Surface.ROTATION_0: degrees = 0; break;
         case Surface.ROTATION_90: degrees = 90; break;
         case Surface.ROTATION_180: degrees = 180; break;
         case Surface.ROTATION_270: degrees = 270; break;
     }

     int result;
     if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
         result = (info.orientation + degrees) % 360;
         result = (360 - result) % 360;  // compensate the mirror
     } else {  // back-facing
         result = (info.orientation - degrees + 360) % 360;
     }
     camera.setDisplayOrientation(result);
 }

Its works starting from API level 14, this method can be called when preview is active

Thanks @PratibhaS! This code you suggested for Custom Camera right? But i want to make use of native camera app. — Polam Naganji, Oct 26 '15 at 14:21
In native , it won't be possible to change the orientation. ..rather you have to go for custom camera. Already stated in android developer official site — prat, Oct 26 '15 at 14:31

How to prevent Camera app to change orientation to landscape in Android?

3 Answers3