Face color for Android orientation

Question

and so I needed to know when the Android phone was rotated in the x, y, z directions for a tilted program, and then I used a well circulating code that uses magnetism and acceleration to find the orientation, since the orientation sensor is unreliable, and it was good and good in the x, z planes, but it can be said that the person was on a circularly moving bus holding his phones in a fixed terrain position, and then the android detects movement in the y direction, even if the user is not moving It gets its phones in the y direction, and therefore the program crashes, but just using acceleration in itself isn / t accurate too, and I wonder how to solve this problem of detecting y-movement relative to the user?

public class MotionListener {
        String service_name = Context.SENSOR_SERVICE;
        SensorManager sensorManager;
        Sensor sensor;

        public MotionListener(Context context) {
            sensorManager = (SensorManager) context.getSystemService(service_name);
            SensorManager sm = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
            Sensor aSensor = sm.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
            Sensor mfSensor = sm.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
            sm.registerListener(myAccelerometerListener, aSensor, SensorManager.SENSOR_DELAY_GAME);
            sm.registerListener(myMagneticFieldListener, mfSensor, SensorManager.SENSOR_DELAY_GAME);
        }

        float[] accelerometerValues;
        float[] magneticFieldValues;
        final SensorEventListener myAccelerometerListener = new SensorEventListener() {
            public void onSensorChanged(SensorEvent sensorEvent) {
                if (sensorEvent.sensor.getType() == Sensor.TYPE_ACCELEROMETER)
                    accelerometerValues = sensorEvent.values;
                float[] values = new float[3];
                float[] R = new float[9];
                try {
                    SensorManager.getRotationMatrix(R, null, accelerometerValues, magneticFieldValues);
                    SensorManager.getOrientation(R, values);
                    values[0] = (float) ((float) values[0] * 180 / Math.PI);
                    values[1] = (float) ((float) values[1] * 180 / Math.PI);
                    values[2] = (float) ((float) values[2] * 180 / Math.PI);
                    System.out.println((int)values[0] + "   " + (int)values[1] + "        " + (int)values[2]);
                    setTiltCoordinates(values);
                } catch (NullPointerException e) {
                }
            public void onAccuracyChanged(Sensor sensor, int accuracy) {
            }
        };

Answer 1

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