Rotation 180 degrees android doesn't work properly

Question

If I change left-side-base to right-side-base (both are landscape view modes for user) the application (activity) doesn't recreate. Hense, the camera is shown as horizontaly flipped image. The same result when I try to change position of my device for two portrait modes (normal and inverse). The device detects 90 degree rotation normaly. That is, left-side => portrait => right-size => inverse-portrait => left-side works correctly!

Is it possible to fix this?

I am using Android 4.4.4.

Code:

    Display display = ((WindowManager)context.getSystemService(WINDOW_SERVICE)).getDefaultDisplay();

    if(display.getRotation() == Surface.ROTATION_0){//0

        mCamera.setDisplayOrientation(90);
    }else if(display.getRotation() == Surface.ROTATION_90){//1
        mCamera.setDisplayOrientation(0);
    }else if(display.getRotation() == Surface.ROTATION_180){//2
        mCamera.setDisplayOrientation(270);
    }else if(display.getRotation() == Surface.ROTATION_270){//3
        mCamera.setDisplayOrientation(180);
    }
    Log.d(TAG, "ROTATION:" + display.getRotation() + " ");

EDIT I mean, onResume() and SurfaceCreate() are never call when I rotate the device by 180 degs.

EDIT CODE OF FUNCTIONS

SurfaceView sfv;
FrameLayout fl0;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //some code to initialize
    fl0 = (FrameLayout) findViewById(R.id.fl0);
    sfv = new SurfaceView(this);
    fl0.addView(sfv, 0);
    addSurfaceHolder();
}
private void addSurfaceHolder() {
    SurfaceHolder holder = sfv.getHolder();

    holder.addCallback(new SurfaceHolder.Callback() {


        @Override
        public void surfaceCreated(SurfaceHolder holder) {
            Log.d(TAG, TAG + " surfaceCreated");
            //this function never calls for 180 deg rotation.
            cameraStart(MainActivity.this, false);
            //some code for camera holder connection
        }

        @Override
        public void surfaceChanged(SurfaceHolder holder, int format,
            int width, int height) {
            Log.d(TAG, TAG + " surfaceChanged");
        }

        @Override
        public void surfaceDestroyed(SurfaceHolder holder) {
            ///Some code to destroy camera
            Log.d(TAG, TAG + " surfaceDestroyed");
        }
    });
}
@Override
protected void onResume() {
    super.onResume();
    Log.d(TAG, TAG + " onResume"); //call for 90 deg rotation. not for 180 deg rotation.
}

public static void cameraStart(Context context, boolean startStopPreview) {

    if (mCamera == null) {
        mCamera = Camera.open(CAMERA_ID); //0
    }

    Camera.Parameters cameraParam = mCamera.getParameters();

    Camera.Size previewSize = cameraParam.getPreviewSize();
    previewFormat = cameraParam.getPreviewFormat();
    frameWidth = previewSize.width;
    frameHeight = previewSize.height;
    frameRect = new Rect(0, 0, frameWidth, frameHeight);

    Display display = ((WindowManager) context.getSystemService(WINDOW_SERVICE)).getDefaultDisplay();

    if (display.getRotation() == Surface.ROTATION_0) { //0

        mCamera.setDisplayOrientation(90);
    } else if (display.getRotation() == Surface.ROTATION_90) { //1

        mCamera.setDisplayOrientation(0);
    } else if (display.getRotation() == Surface.ROTATION_180) { //2

        mCamera.setDisplayOrientation(270);
    } else if (display.getRotation() == Surface.ROTATION_270) { //3

        mCamera.setDisplayOrientation(180);
    }
    Log.d(TAG, "ROTATION:" + display.getRotation() + " "); //just calles for 90 deg rotation. not for 180 deg.
}

and take a look at this [question](http://stackoverflow.com/questions/9909037/how-to-detect-screen-rotation-through-180-degrees-from-landscape-to-landscape-or) for some hint regarding OrientationEventListener — Sharp Edge, Dec 29 '14 at 13:17
Thanks. It works. But rather difficult to implement and catch all states. YOu can write this as answer, I will accept as correct. — Vyacheslav, Dec 29 '14 at 13:22
yes this is very annoying the way it is implemented. Could you vote up my answer, would really appreciate it. Thanks — Sharp Edge, Dec 29 '14 at 13:24
Change the text in your comment with the correct answer. I will upvote. — Vyacheslav, Dec 29 '14 at 15:11

score 5 · Accepted Answer · edited May 23 '17 at 12:07

5

You need to get the camera's supporting parameters like this:

Camera.Parameters parameters = camera.getParameters();

and add this line before before mCamera.setDisplayOrientation(int);

parameters.setRotation(int);

for example:

if(display.getRotation() == Surface.ROTATION_0){//0
    parameters.setRotation(90);
    mCamera.setDisplayOrientation(90);
}else if(display.getRotation() == Surface.ROTATION_90){//1
    parameters.setRotation(0);
    mCamera.setDisplayOrientation(0);
}else if(display.getRotation() == Surface.ROTATION_180){//2
    parameters.setRotation(270);
    mCamera.setDisplayOrientation(270);
}else if(display.getRotation() == Surface.ROTATION_270){//3
    parameters.setRotation(180);
    mCamera.setDisplayOrientation(180);
}

hope this answers your question

EDIT

The above code needs to be present also in onResume() method because each time orientation is changed onDestroy() is called and then onCreate() is called so onResume() needs to have this piece of code as well as onCreate().

EDIT 2

Take a look at OrientationEventListener

Further more take a look at this question for hint regarding OrientationEventListener

Hope you will find this answer a little bit useful.

edited May 23 '17 at 12:07

Community

1
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answered Dec 29 '14 at 12:01

Sharp Edge

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Sadly, but no. This doesnt work. Application doesn't recreates. – Vyacheslav Dec 29 '14 at 12:07
have you tried using another device ? which device are you using to test this ? – Sharp Edge Dec 29 '14 at 12:08
and one more question where are you putting this snippet of code ? – Sharp Edge Dec 29 '14 at 12:09
surfaceCreated() method anyway. onResume hasn't called too. – Vyacheslav Dec 29 '14 at 12:40
post your complete relevant code, I'm sure its not a top secret gov project, that way I could assist you better – Sharp Edge Dec 29 '14 at 12:42
Updated the main post – Vyacheslav Dec 29 '14 at 12:58

Rotation 180 degrees android doesn't work properly

1 Answers1