Android step counter

问题

I am trying to make a simple Android application to count steps. When I run the application the else is called in the onResume method meaning it did not find the sensor. I am testing on a 2016 Samsung J3 running Api 22. I am wondering is the problem in my code or is it that the phone does not have the sensor. If it is the phone is there a workaround for it?

public class MainActivity extends AppCompatActivity implements SensorEventListener
{

private TextView counterTextView;

private SensorManager sensorManager;

private boolean isWalking;


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

    counterTextView = findViewById(R.id.counterTextView);
    sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
}

@Override
protected void onResume()
{
    super.onResume();
    isWalking = true;
    Sensor countSensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
    if(countSensor != null)
    {
        sensorManager.registerListener(this, countSensor, SensorManager.SENSOR_DELAY_UI);
    }
    else
    {
        counterTextView.setText("WARNING SENSOR NOT FOUND");
    }

}

@Override
protected void onPause()
{
    super.onPause();
    isWalking = false;
}

@Override
public void onSensorChanged(SensorEvent event)
{
    if(isWalking)
    {
        counterTextView.setText(String.valueOf(event.values[0]));
    }
}

@Override
public void onAccuracyChanged(Sensor sensor, int accuracy)
{

}
}

回答1:

For anyone in the same situation as me, it was the device I was using. If you want to work with all devices you can use the accelerometer.

来源：https://stackoverflow.com/questions/53958841/android-step-counter