Android Program : Create an Android application that plays an audio(song) in the background. Audio will not be stopped even if you switch to another activity. To stop the audio, you need to stop the service.

Create an Android application that plays an audio(song) in the background. Audio  will not be stopped even if you switch to another activity. To stop the audio, you  need to stop the service.

activity_main.xml

1. <?xml version="1.0" encoding="utf-8"?>  
2. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  
3.     xmlns:app="http://schemas.android.com/apk/res-auto"  
4.     xmlns:tools="http://schemas.android.com/tools"  
5.     android:layout_width="match_parent"  
6.     android:layout_height="match_parent"  
7.    >  
8.   
9.   
10.     <Button  
11.         android:id="@+id/buttonStart"  
12.         android:layout_width="wrap_content"  
13.         android:layout_height="wrap_content"  
14.         android:layout_alignParentTop="true"  
15.         android:layout_centerHorizontal="true"  
16.         android:layout_marginTop="74dp"  
17.         android:text="Start Service" />  
18.   
19.     <Button  
20.         android:id="@+id/buttonStop"  
21.         android:layout_width="wrap_content"  
22.         android:layout_height="wrap_content"  
23.         android:layout_centerHorizontal="true"  
24.         android:layout_centerVertical="true"  
25.         android:text="Stop Service" />  
26.   
27.     <Button  
28.         android:id="@+id/buttonNext"  
29.         android:layout_width="wrap_content"  
30.         android:layout_height="wrap_content"  
31.         android:layout_alignParentBottom="true"  
32.         android:layout_centerHorizontal="true"  
33.         android:layout_marginBottom="63dp"  
34.         android:text="Next Page" />  
35. </RelativeLayout>  

activity_next.xml

1. <?xml version="1.0" encoding="utf-8"?>  
2. <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"  
3.     xmlns:app="http://schemas.android.com/apk/res-auto"  
4.     xmlns:tools="http://schemas.android.com/tools"  
5.     android:layout_width="match_parent"  
6.     android:layout_height="match_parent"  
7.     tools:context="example.javatpoint.com.androidservice.NextPage">  
8.   
9.     <TextView  
10.         android:id="@+id/textView"  
11.         android:layout_width="wrap_content"  
12.         android:layout_height="wrap_content"  
13.         android:layout_marginEnd="8dp"  
14.         android:layout_marginStart="8dp"  
15.         android:layout_marginTop="200dp"  
16.         android:text="Next Page"  
17.         app:layout_constraintEnd_toEndOf="parent"  
18.         app:layout_constraintStart_toStartOf="parent"  
19.         app:layout_constraintTop_toTopOf="parent" />  
20. </android.support.constraint.ConstraintLayout>  

MyService.java

1. import android.app.Service;  
2. import android.content.Intent;  
3. import android.media.MediaPlayer;  
4. import android.os.IBinder;  
5. import android.support.annotation.Nullable;  
6. import android.widget.Toast;  
7.   
8. public class MyService extends Service {  
9.     MediaPlayer myPlayer;  
10.     @Nullable  
11.     @Override  
12.     public IBinder onBind(Intent intent) {  
13.         return null;  
14.     }  
15.     @Override  
16.     public void onCreate() {  
17.         Toast.makeText(this, "Service Created", Toast.LENGTH_LONG).show();  
18.   
19.         myPlayer = MediaPlayer.create(this, R.raw.sun);  
20.         myPlayer.setLooping(false); // Set looping  
21.     }  
22.     @Override  
23.     public void onStart(Intent intent, int startid) {  
24.         Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();  
25.         myPlayer.start();  
26.     }  
27.     @Override  
28.     public void onDestroy() {  
29.         Toast.makeText(this, "Service Stopped", Toast.LENGTH_LONG).show();  
30.         myPlayer.stop();  
31.     }  
32. }  

 MainActivity.java

1. import android.content.Intent;  
2. import android.support.v7.app.AppCompatActivity;  
3. import android.os.Bundle;  
4. import android.view.View;  
5. import android.widget.Button;  
6.   
7. public class MainActivity extends AppCompatActivity implements View.OnClickListener{  
8.     Button buttonStart, buttonStop,buttonNext;  
9.     @Override  
10.     protected void onCreate(Bundle savedInstanceState) {  
11.         super.onCreate(savedInstanceState);  
12.         setContentView(R.layout.activity_main);  
13.   
14.         buttonStart = findViewById(R.id.buttonStart);  
15.         buttonStop = findViewById(R.id.buttonStop);  
16.         buttonNext =  findViewById(R.id.buttonNext);  
17.   
18.         buttonStart.setOnClickListener(this);  
19.         buttonStop.setOnClickListener(this);  
20.         buttonNext.setOnClickListener(this);  
21.   
22.   
23.     }  
24.     public void onClick(View src) {  
25.         switch (src.getId()) {  
26.             case R.id.buttonStart:  
27.   
28.                 startService(new Intent(this, MyService.class));  
29.                 break;  
30.             case R.id.buttonStop:  
31.                 stopService(new Intent(this, MyService.class));  
32.                 break;  
33.             case R.id.buttonNext:  
34.                 Intent intent=new Intent(this,NextPage.class);  
35.                 startActivity(intent);  
36.                 break;  
37.         }  
38.     }  
39. }  

NextPage.java

1. import android.support.v7.app.AppCompatActivity;  
2. import android.os.Bundle;  
3.   
4. public class NextPage extends AppCompatActivity {  
5.   
6.     @Override  
7.     protected void onCreate(Bundle savedInstanceState) {  
8.         super.onCreate(savedInstanceState);  
9.         setContentView(R.layout.activity_next);  
10.     }  
11. }  

AndroidManifest.xml

1. <service  
2.             android:name=".MyService"  
3.             android:enabled="true" />