Question

我想在我的所有活动中使用我的声音，而不仅仅是主要活动。我把这行

MediaPlayer ring = MediaPlayer.create(MainActivity.this, R.raw.song);
ring.start();

但仅适用于主要活动。

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

    MediaPlayer ring = MediaPlayer.create(MainActivity.this, R.raw.song);
    ring.start();

Answer 1

你可以尝试这样的事情

<强> 1。在您的所有活动中添加此代码

MediaPlayer ring = MediaPlayer.create(MainActivity.this,    
    R.raw.song);
ring.start();

<强> 2。创建一个这样的方法，并从您想要播放音乐的活动中调用此消息

public void Playmusic(Context context){
   MediaPlayer ring = MediaPlayer.create(context, R.raw.song);
    ring.start(); 
}

现在只需像这样调用此方法

Playmusic(MainActivity.this);

Answer 2

在服务中播放您的歌曲并仅在那里初始化媒体播放器对象

    Select * from Table1
    where Priority = 'critical' 
    and ([% Diff] > = 5 or [% Diff ] <= -5 )
    OR (Priority = 'high' and ([% Diff ] > = 10 or [% Diff] <= -10 ))
    OR (Priority = 'LOW' and ([% Diff ] > = 20 or [% Diff ] <= -20 ))
    OR (Priority = 'MEDIUM' and ([% Diff ] > = 15 or [% Diff ] <= -15 ))

请在Manifest中调用此服务

Intent svc=new Intent(this, BackgroundSoundService.class);
startService(svc);
public class BackgroundSoundService extends Service {
private static final String TAG = null;
MediaPlayer player;
public IBinder onBind(Intent arg0) {

    return null;
}
@Override
public void onCreate() {
    super.onCreate();
    player = MediaPlayer.create(this, R.raw.idil);
    player.setLooping(true); // Set looping
    player.setVolume(100,100);

}
public int onStartCommand(Intent intent, int flags, int startId) {
    player.start();
    return 1;
}

public void onStart(Intent intent, int startId) {
    // TO DO
}
public IBinder onUnBind(Intent arg0) {
    // TO DO Auto-generated method
    return null;
}

public void onStop() {

}
public void onPause() {

}
@Override
public void onDestroy() {
    player.stop();
    player.release();
}

@Override
public void onLowMemory() {

}
}

如何在我的所有活动中播放声音

2 个答案: