osmdroid get orientation from Compass [How to]

Question

I use Osmdroid in my map app.

I want to get radian(oriantation) of compass for rotate map when click compass overlay.

eg. press compass icon then update orientation map true direction.

i know method setMapOrientation for rotate map thank u.

Answer 1

You can use internal compass of the device and use SensorListener in android. Then use MapOrientation method to rotate the osmmap.

Some snippet:

mSensorManager.registerListener(mySensorEventListener,
                        SensorManager.SENSOR_ORIENTATION,
                        SensorManager.SENSOR_DELAY_UI);

public SensorListener mySensorEventListener = new SensorListener(){

        @Override
        public void onSensorChanged(int sensor, float[] values) {
            synchronized (this) {
                float mHeading = values[0];             
                mOSMView.setMapOrientation(-mHeading);
            }
        }
    };