How to lock orientation during runtime

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

Called on an activity, will lock it to landscape. Look for the other flags in the ActivityInfo class. You can lock it back to portrait or make it sensor/slider driven.

More info here: http://www.devx.com/wireless/Article/40792

Be careful of the difference between what getConfiguration returns and what setRequestedOrientation wants - they are both int, but they are coming from different constant definitions.

Here's how to lock the current orientation, while allowing 180 degree flips

int currentOrientation = getResources().getConfiguration().orientation;if (currentOrientation == Configuration.ORIENTATION_LANDSCAPE) {   setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);}else {   setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT);}

This works on devices with reverse portrait and reverse landscape.

Lock orientation:

    int orientation = getActivity().getRequestedOrientation();    int rotation = ((WindowManager) getActivity().getSystemService(            Context.WINDOW_SERVICE)).getDefaultDisplay().getRotation();    switch (rotation) {    case Surface.ROTATION_0:        orientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;        break;    case Surface.ROTATION_90:        orientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;        break;    case Surface.ROTATION_180:        orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;        break;    default:        orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;        break;    }    getActivity().setRequestedOrientation(orientation);

Unlock orientation:

   getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);