StepCounter for Android KitKat

gistfile1.txt

MainActivity.java

package com.madinabektayeva.stepcounter;

import android.content.Context;
import android.hardware.*;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

import static android.hardware.SensorManager.SENSOR_DELAY_UI;

public class MainActivity extends AppCompatActivity implements SensorEventListener {

    TextView tv_steps;
    SensorManager sensorManager;
    boolean running = false;


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

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

    protected void onResume(){
        super.onResume();
        running = true;
        Sensor countSensor = sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
        if(countSensor!= null){
            sensorManager.registerListener((SensorEventListener) this, countSensor, SensorManager.SENSOR_DELAY_UI);

        }else{
            Toast.makeText(this, "Sensor not found", Toast.LENGTH_SHORT).show();
        }

    }

    protected void onPause(){
        super.onPause();
        sensorManager.unregisterListener((SensorListener) this);
        running = false;
    }

    public void onSensorChanged(SensorEvent event){
        if(running){
            tv_steps.setText(""+String.valueOf(event.values[0]));
        }
    }


    public void onAccuracyChanged(Sensor sensor, int accuracy){
        if(running){

        }
    }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.madinabektayeva.stepcounter">
    <uses-feature android:name="android.hardware.sensor.stepcounter" android:required="true" />
    <uses-feature android:name="android.hardware.sensor.stepdetector" android:required="true" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical"
    android:paddingBottom="16dp"
    android:paddingTop="16dp"
    android:paddingLeft="16dp"
    android:paddingRight="16dp"
    tools:context="com.madinabektayeva.stepcounter.MainActivity">


    <TextView
        android:id="@+id/tv_info"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Steps" />

    <TextView
        android:id="@+id/tv_steps"
        android:layout_marginTop="10dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="0"
        android:textSize="40dp"/>
</LinearLayout>

http://techdroid.kbeanie.com/2014/03/step-detector-and-step-counter-sensors.html

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4343050/

http://www.mdpi.com/1424-8220/15/9/21518/htm