public void resumeSensors() {
        for (Entry entry: sensors) {
            if (entry.getKey() != Sensor.TYPE_ORIENTATION) {
                registerListener(entry.getKey());
            }
        }
    }
Resumes the sensors.
Used to resume sensors when the activity comes to the top of the stack
jme3-android/src/main/java/com/jme3/input/android/AndroidSensorJoyInput.java