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@Gorilla_ZEN

AndroidからPCへ加速度センサの値をUDPで定期的に送信する

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#前回からの変更点
前回はAndroidのボタンを押したときに値を送信するように作成していたが、今回はTimerTaskを用いることで、定期的に値を送信できるようにプログラムを作成した。

#プログラムのソースコード

activity._main.xml
<EditText
        android:id="@+id/IP_Address"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="52dp"
        android:layout_marginEnd="16dp"
        android:ems="10"
        android:inputType="textPersonName"
        android:text="192.168.0."
        android:textSize="24sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/Port"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="48dp"
        android:layout_marginEnd="16dp"
        android:ems="10"
        android:inputType="textPersonName"
        android:text="8080"
        android:textSize="24sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/IP_Address" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="280dp"
        android:text="X:"
        android:textSize="32sp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="24dp"
        android:text="Y:"
        android:textSize="32sp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="24dp"
        android:text="Z:"
        android:textSize="32sp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView2" />

    <TextView
        android:id="@+id/X_Data"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="280dp"
        android:text="TextView"
        android:textSize="32sp"
        app:layout_constraintStart_toEndOf="@+id/textView"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/Y_Data"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="TextView"
        android:textSize="32sp"
        app:layout_constraintStart_toEndOf="@+id/textView2"
        app:layout_constraintTop_toBottomOf="@+id/X_Data" />

    <TextView
        android:id="@+id/Z_Data"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="TextView"
        android:textSize="32sp"
        app:layout_constraintStart_toEndOf="@+id/textView3"
        app:layout_constraintTop_toBottomOf="@+id/Y_Data" />

    <TextView
        android:id="@+id/textView7"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="230dp"
        android:text="加速度センサの値"
        android:textSize="32sp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/Ran"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="87dp"
        android:layout_marginLeft="87dp"
        android:layout_marginBottom="70dp"
        android:text="通信開始"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:text="IPアドレス"
        android:textSize="24sp"
        app:layout_constraintBottom_toTopOf="@+id/IP_Address"
        tools:layout_editor_absoluteX="16dp" />

    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:text="ポート番号"
        android:textSize="24sp"
        app:layout_constraintBottom_toTopOf="@+id/Port"
        tools:layout_editor_absoluteX="16dp" />

    <Button
        android:id="@+id/End"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="87dp"
        android:layout_marginLeft="87dp"
        android:layout_marginEnd="87dp"
        android:layout_marginRight="87dp"
        android:layout_marginBottom="70dp"
        android:text="通信解除"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/Ran" />
MainActivity.java

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
import java.net.SocketException;
import java.util.Timer;
import java.util.TimerTask;

public class MainActivity extends AppCompatActivity implements SensorEventListener{

    private SensorManager sensorManager;
    private TextView X_Data_TextView;   //加速度センサXの値
    private TextView Y_Data_TextView;   //加速度センサYの値
    private TextView Z_Data_TextView;   //加速度センサZの値
    private String Data;
    private Timer timer;
    private mTimerTask timerTask;
    private Handler handler = new Handler();
    private int period;


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

        sensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
        X_Data_TextView = findViewById(R.id.X_Data);
        Y_Data_TextView = findViewById(R.id.Y_Data);
        Z_Data_TextView = findViewById(R.id.Z_Data);

        //periodを変えると送信される周期が代わる
        period = 500;
        Button ran = findViewById(R.id.Ran);
        Button end = findViewById(R.id.End);
        ran.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(null != timer){
                    timer.cancel();
                    timer = null;
                }
                timer = new Timer();
                timerTask = new mTimerTask();
                timer.schedule(timerTask,0, period);
            }
        });

        end.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                if(null != timer){
                    timer.cancel();
                    timer = null;
                }
                final String address = ((EditText) findViewById(R.id.IP_Address)).getText().toString();
                String port = ((EditText) findViewById(R.id.Port)).getText().toString();
                int Port = Integer.parseInt(port);
                String exit = "exit";
                byte buf[] = new byte[exit.length()];

                try {
                    buf = exit.getBytes("SHIFT_JIS");
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }

                InetSocketAddress inetSocketAddress = new InetSocketAddress(address, Port);
                final DatagramPacket datagramPacket = new DatagramPacket(buf, buf.length, inetSocketAddress);

                AsyncTask<DatagramPacket, Void, Void> task = new AsyncTask<DatagramPacket, Void, Void>() {
                    @Override
                    protected Void doInBackground(DatagramPacket... datagramPackets) {
                        DatagramSocket datagramSocket = null;
                        try {
                            datagramSocket = new DatagramSocket();
                            datagramSocket.send(datagramPackets[0]);
                            datagramSocket.close();
                        } catch (SocketException e) {
                            e.printStackTrace();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                        return null;
                    }

                };
                task.execute(datagramPacket);

            }
        });

    }



    @Override
    protected void onResume(){
        super.onResume();
        //Event Listener登録
        Sensor accel = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        sensorManager.registerListener((SensorEventListener) this,accel,SensorManager.SENSOR_DELAY_NORMAL);
    }

    @Override
    protected void onPause(){
        super.onPause();
        //Event Listener登録解除
        sensorManager.unregisterListener((SensorEventListener) this);
    }

    @Override
    public void onSensorChanged(SensorEvent event){
        if(event.sensor.getType() == Sensor.TYPE_ACCELEROMETER){
            X_Data_TextView.setText(String.format("%.3f",500+(event.values[0])*25));
            Y_Data_TextView.setText(String.format("%.3f",500+(event.values[1])*25));
            Z_Data_TextView.setText(String.format("%.3f",500+(event.values[2]) *25));
            Data = (500+event.values[0]*25) + " " +
                    (500+event.values[1]*25) + " " +
                    (500+event.values[2]*25);
        }
    }

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

    }

    private class mTimerTask extends TimerTask{
        @Override
        public void run(){

            handler.post(new Runnable() {
                @Override
                public void run() {
                    final String address = ((EditText) findViewById(R.id.IP_Address)).getText().toString();
                    String port = ((EditText) findViewById(R.id.Port)).getText().toString();
                    int Port = Integer.parseInt(port);
                    byte buf[] = new byte[Data.length()];

                    try {
                        buf = Data.getBytes("SHIFT_JIS");
                    } catch (UnsupportedEncodingException e) {
                        e.printStackTrace();
                    }

                    InetSocketAddress inetSocketAddress = new InetSocketAddress(address, Port);
                    final DatagramPacket datagramPacket = new DatagramPacket(buf, buf.length, inetSocketAddress);


                    AsyncTask<DatagramPacket, Void, Void> task = new AsyncTask<DatagramPacket, Void, Void>() {
                        @Override
                        protected Void doInBackground(DatagramPacket... datagramPackets) {
                            DatagramSocket datagramSocket = null;

                            try {
                                datagramSocket = new DatagramSocket();
                                datagramSocket.send(datagramPackets[0]);
                                datagramSocket.close();
                            } catch (SocketException e) {
                                e.printStackTrace();
                            } catch (IOException e) {
                                e.printStackTrace();
                            }

                            return null;
                        }

                    };
                    task.execute(datagramPacket);
                }
            });

        }
    }
}
Program.cs
static void Main(string[] args)
        {
            //バインドするローカルIPとポート番号
            string localIpString = "自分のIPアドレス";
            System.Net.IPAddress localAddress =
                System.Net.IPAddress.Parse(localIpString);
            int localPort = 8080;

            //UdpClientを作成し、ローカルエンドポイントにバインドする
            System.Net.IPEndPoint localEP =
                new System.Net.IPEndPoint(localAddress, localPort);
            System.Net.Sockets.UdpClient udp =
                new System.Net.Sockets.UdpClient(localEP);

            int i = 0;
            string[] xyz = { "X", "Y", "Z" };
            for (;;)
            {
                //データを受信する
                System.Net.IPEndPoint remoteEP = null;
                byte[] rcvBytes = udp.Receive(ref remoteEP);

                //データを文字列に変換する
                string rcvMsg = System.Text.Encoding.UTF8.GetString(rcvBytes);
                string[] RcvMsg = rcvMsg.Split(' ');
                //受信したデータと送信者の情報を表示する

                //"exit"を受信したら終了
                if (RcvMsg[0] =="exit")
                {
                    break;
                }

                for (i = 0; i < 3; i++) {
                    Console.WriteLine("{0}:{1}",xyz[i], RcvMsg[i]);
                }

                Console.WriteLine("送信元アドレス:{0}/ポート番号:{1}",
                    remoteEP.Address, remoteEP.Port);


            }

            //UdpClientを閉じる
            udp.Close();

            Console.WriteLine("終了しました。");
            Console.ReadLine();
        }
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