TestActivity.java
public class TestActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button startServiceButton=(Button)findViewById(R.id.startService);
startServiceButton.setOnClickListener(new StartServiceListener());
Button stopServiceButton=(Button)findViewById(R.id.stopService);
stopServiceButton.setOnClickListener(new StopServiceListener());
Button startMusicButton=(Button)findViewById(R.id.start);
startMusicButton.setOnClickListener(new StartMusicListener());
Button stopMusicButton=(Button)findViewById(R.id.stop);
stopMusicButton.setOnClickListener(new StopMusicListener());
}
class StartServiceListener implements OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent();
intent.setClass(TestActivity.this, FirstService.class);
startService(intent);
}}
class StopServiceListener implements OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent();
intent.setClass(TestActivity.this, FirstService.class);
stopService(intent);
}}
class StartMusicListener implements OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startService(new Intent(TestActivity.this, FirstService.class));
//启动服务
}}
class StopMusicListener implements OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
stopService(new Intent(TestActivity.this,FirstService.class));
//停止服务
}
}
}
FirstService.java
public class FirstService extends Service {
private MediaPlayer mp;
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
System.out.println("Service onBind");
return null;
}
/** Called when the activity is first created. */
@Override
public void onCreate() {
// TODO Auto-generated method stub
System.out.println("Service onCreate");
super.onCreate();
mp=MediaPlayer.create(this,Uri.parse("/sdcard/More Than I Can Say.mp3"));
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
System.out.println("Service onDestroy");;
super.onDestroy();
mp.stop();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
mp.start();
System.out.println("intent="+intent);
System.out.println("flags="+flags);
System.out.println("startId="+startId);
System.out.println("Service onStartCommand");
return START_NOT_STICKY;
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button
android:id="@+id/startService"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/startService"
/>
<Button
android:id="@+id/stopService"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/stopService"
/>
<Button
android:id="@+id/start"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="开始"
/>
<Button
android:id="@+id/stop"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="停止"
/>
</LinearLayout>
截图：
