Android Wear API (Check Android Wear Sensor eventListener)

In this poster, I will introduce the "SensorEventListener" to receive the data from sensors in Android Wear. In the previous poster (Check Sensor), I already introduced how to create the new project for Android wear with Google fit API.

So, We start with "MainActivity" under "wear".

//add SensorEventListener to receive the data from sensors.
public class MainActivity extends WearableActivity implements SensorEventListener{

    private static final SimpleDateFormat AMBIENT_DATE_FORMAT =
            new SimpleDateFormat("HH:mm", Locale.US);

    private BoxInsetLayout mContainerView;
    private TextView mTextView;
    private TextView mClockView;
    SensorManager mSensorManager;
    // Add Sensor and Listener to Recieve data from the sensor  

    Sensor mGyroscopeSensor;

    SensorEventListener sensorEventListener;

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setAmbientEnabled();

        mContainerView = (BoxInsetLayout) findViewById(R.id.container);
        mTextView = (TextView) findViewById(R.id.text);
        mClockView = (TextView) findViewById(R.id.clock);

        mSensorManager = ((SensorManager) getSystemService(SENSOR_SERVICE));
        List<Sensor> sensorList = mSensorManager.getSensorList(Sensor.TYPE_ALL);

// Get Sensor using SensorManager and add Listener on the SensorManager

        mGyroscopeSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE);
        mSensorManager.registerListener(this, mGyroscopeSensor,SensorManager.SENSOR_DELAY_FASTEST);

    }


By adding implements "SensorEventListenr", we need to implement two methods.One is "onSensorChanged". The order one is "onAccuracyChanged". We just input code in the "onSensorChanged" :


@Overridepublic void onSensorChanged(SensorEvent sensorEvent) {
    if(sensorEvent.sensor.getType() == Sensor.TYPE_GYROSCOPE){
// get gyroscope data.

        String str="";
        for(int i=0; i< sensorEvent.values.length;i++){
           str=str+"GYROSCOPE " +i+":";
            str=str+(int)sensorEvent.values[i];
        }
        mTextView.setText(str);

    }
}
@Overridepublic void onAccuracyChanged(Sensor sensor, int i) {
}


Thank you for reading my post. I hope that you find some of this information useful.