Retromania app

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="spider.app.retromania">

    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
        </activity>
        <activity android:name=".NetworkDetailsActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

build.gradle (Module:app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "spider.app.retromania"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile files('libs/json-20090211.jar')
    compile files('libs/okhttp-3.4.1.jar')
    compile files('libs/okhttp-ws-3.4.1.jar')
    compile files('libs/okio-1.9.0.jar')
    compile files('libs/socket.io-client-0.8.1.jar')
    compile files('libs/engine.io-client-0.8.1.jar')
}

Layout Screens

http://imgur.com/a/y3NTb

MainActivity.java

package spider.app.retromania;

import android.content.Context;
import android.content.Intent;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import java.net.URISyntaxException;
import java.util.EventListener;

import io.socket.client.IO;
import io.socket.client.Socket;
import io.socket.emitter.Emitter;

public class MainActivity extends AppCompatActivity implements SensorEventListener {

    // Socket properties
    private Socket socket;
    private String ipAddress;
    private String port;
    private String fullNetAddress;

    // Sensor data
    private SensorManager sensorManager;
    private Sensor accelerometer;
    private float yValue; // tracks y-axis position of the phone tilt

    // Layout data
    private TextView connectionStatus;
    private TextView accelData;


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

        connectionStatus = (TextView) findViewById(R.id.connStatus);
        accelData = (TextView) findViewById(R.id.accel);

        sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        accelerometer = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);

        Intent intent = getIntent();
        ipAddress = intent.getStringExtra("ipAddress");
        port = intent.getStringExtra("port");

        fullNetAddress = "http://" + ipAddress + ":" + port;
        connectSocket();

    }

    private void connectSocket() {
        try {
            socket = IO.socket(fullNetAddress);
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }

        socket.on(Socket.EVENT_CONNECT, new Emitter.Listener() {
            @Override
            public void call(Object... objects) {
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        connectionStatus.setText("Connected");
                    }
                });
            }
        });

        socket.connect();
    }


    @Override
    protected void onResume() {
        super.onResume();
        sensorManager.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_GAME);
    }


    @Override
    public void onSensorChanged(SensorEvent event) {
        yValue = event.values[1]; // [x, y, z] are available values
        accelData.setText(String.valueOf(yValue));
        socket.emit("app-message", yValue);
    }


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


    @Override
    protected void onDestroy() {
        super.onDestroy();
        sensorManager.unregisterListener(this);
        socket.disconnect();
        socket.close();
    }
}

NetworkDetailsActivity.java

package spider.app.retromania;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

public class NetworkDetailsActivity extends AppCompatActivity {

    String ipAddress;
    String port;

    EditText ipAddressContainer;
    EditText portContainer;

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

        ipAddressContainer = (EditText) findViewById(R.id.ipAddr);
        portContainer = (EditText) findViewById(R.id.portNo);
    }

    public void startSocketTransfer(View view) {
        Intent intent = new Intent(this, MainActivity.class);

        // get the strings
        ipAddress = ipAddressContainer.getText().toString().trim();
        port = portContainer.getText().toString().trim();

        intent.putExtra("ipAddress", (ipAddress.isEmpty())? "127.0.0.1": ipAddress);
        intent.putExtra("port", (port.isEmpty())? "3000": port);

        startActivity(intent);
    }
}