Android_Java(33) - MusicService

<?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="top|center"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="음악 서비스 Test"
        android:gravity="center"
        android:padding="20dp"
        android:textSize="20sp"/>
    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/start"
        android:text="시작"/>
    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/stop"
        android:text="중지"/>
</LinearLayout>

---

package kr.co.musicservice;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    Button start, stop;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
        getSupportActionBar().setIcon(R.drawable.ic_launcher);

        start = findViewById(R.id.start);
        stop = findViewById(R.id.stop);

        start.setOnClickListener(this);
        stop.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.start:
                startService(new Intent(this, MusicService.class));
                break;
            case R.id.stop:
                stopService(new Intent(this, MusicService.class));
                break;
        }
    }
}

---

package kr.co.musicservice;

import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.IBinder;
import android.widget.Toast;

public class MusicService extends Service {
    MediaPlayer mediaPlayer;

    public MusicService() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        throw new UnsupportedOperationException("Not yet implemented");
    }

    @Override
    public void onCreate() {
        super.onCreate();

        //음악재생기 생성
        mediaPlayer = MediaPlayer.create(this, R.raw.dbd);
        mediaPlayer.setLooping(false);
    }

    // 서비스가 시작될 때마다 음악 재생을 시작함
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Toast.makeText(this, "Musice Service가 시작되었습니다.", Toast.LENGTH_SHORT).show();
        mediaPlayer.start();

        return super.onStartCommand(intent, flags, startId);
    }

    // 서비스가 중지되면 음악 재생기를 중지함
    @Override
    public void onDestroy() {
        super.onDestroy();

        Toast.makeText(this, "Musice Service가 중지되었습니다.", Toast.LENGTH_SHORT).show();
        mediaPlayer.stop();
    }
}

---