Changes from the last time

In the previous program, the delay time was set to 500 milliseconds, but when measuring the value of the accelerometer, it has been improved so that the delay can be adjusted by yourself in order to shorten the delay time when performing motion detection. ..

Source code

`AndroidManifest.xml`


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

Please note that it will not work unless you add permission to use the Internet to AndroidManifest.xml. (2 losses)

`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="Accelerometer value"
        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="Start communication"
        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_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginBottom="8dp"
        android:text="IP address"
        android:textSize="24sp"
        app:layout_constraintBottom_toTopOf="@+id/IP_Address"
        app:layout_constraintStart_toStartOf="parent" />

    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginBottom="8dp"
        android:text="port number"
        android:textSize="24sp"
        app:layout_constraintBottom_toTopOf="@+id/Port"
        app:layout_constraintStart_toStartOf="parent" />

    <Button
        android:id="@+id/End"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="87dp"
        android:layout_marginRight="87dp"
        android:layout_marginBottom="70dp"
        android:text="Communication cancellation"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

    <ImageView
        android:id="@+id/LED1"
        android:layout_width="75dp"
        android:layout_height="75dp"
        android:layout_marginStart="100dp"
        android:layout_marginLeft="100dp"
        android:layout_marginBottom="150dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:srcCompat="@drawable/en" />

    <ImageView
        android:id="@+id/LED2"
        android:layout_width="75dp"
        android:layout_height="75dp"
        android:layout_marginEnd="100dp"
        android:layout_marginRight="100dp"
        android:layout_marginBottom="150dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:srcCompat="@drawable/en" />

    <TextView
        android:id="@+id/textView6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="352dp"
        android:layout_marginEnd="124dp"
        android:layout_marginRight="124dp"
        android:text="Delay"
        android:textSize="32sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/Delay"
        android:layout_width="159dp"
        android:layout_height="49dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="40dp"
        android:layout_marginRight="40dp"
        android:ems="10"
        android:inputType="textPersonName"
        android:text="100"
        android:textSize="24sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView6" />

The layout looks like this

For ASUS K013

`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.ImageView;
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;   //Accelerometer X value
    private TextView Y_Data_TextView;   //Accelerometer Y value
    private TextView Z_Data_TextView;   //Accelerometer Z value
    private float data_X,data_Y,data_Z;
    private String Data;
    private Timer timer1,timer2;
    private mTimerTask1 timerTask1;
    private mTimerTask2 timerTask2;
    private Handler handler = new Handler();
    private Handler handler1 = new Handler();
    private long Delay;
    ImageView LED1,LED2;


    @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);

        LED1 = findViewById(R.id.LED1);
        LED2 = findViewById(R.id.LED2);
        LED1.setImageResource(R.drawable.en);
        LED2.setImageResource(R.drawable.en);

        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 != timer1){
                    timer1.cancel();
                    timer1 = null;
                }

                String delay = ((EditText)findViewById(R.id.Delay)).getText().toString();
                Delay = Long.parseLong(delay);

                timer1 = new Timer();
                timerTask1 = new mTimerTask1();
                timer1.schedule(timerTask1,0, Delay);

                timer2 = new Timer();
                timerTask2 = new mTimerTask2();
                timer2.schedule(timerTask2,0,Delay);
            }
        });

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

                if(null != timer1){
                    timer1.cancel();
                    timer1 = 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 registration
        Sensor accel = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        sensorManager.registerListener((SensorEventListener) this,accel,SensorManager.SENSOR_DELAY_NORMAL);
    }

    @Override
    protected void onPause(){
        super.onPause();
        //Event Listener unregistered
        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);

            data_X= (500+event.values[0]*25);
            data_Y= (500+event.values[1]*25);
            data_Z= (500+event.values[2]*25);


        }
    }

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

    }

    private class mTimerTask2 extends TimerTask{
        @Override
        public void run() {
            handler.post(new Runnable() {
                @Override
                public void run() {
                        if (data_X >= 700) {
                            LED1.setImageResource(R.drawable.en_gleen);
                        } else if (data_X <= 300) {
                            LED1.setImageResource(R.drawable.en);
                        } else if (data_Y >= 700) {
                            LED2.setImageResource(R.drawable.en_red);
                        } else if (data_Y <= 300) {
                            LED2.setImageResource(R.drawable.en);
                        } else if (data_Z >= 700) {
                            LED1.setImageResource(R.drawable.en_gleen);
                            LED2.setImageResource(R.drawable.en_red);
                        } else if (data_Z <= 300) {
                            LED1.setImageResource(R.drawable.en);
                            LED2.setImageResource(R.drawable.en);
                        }
                }
            });
        }

    }
    private class mTimerTask1 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);
                }
            });

        }
    }
}

I tried to make it possible to set the delay for the UDP client of Android by myself

Changes from the last time

Source code

AndroidManifest.xml

activity_main.xml

MainActivity.java

`AndroidManifest.xml`

`activity_main.xml`

`MainActivity.java`