Android音乐播放器的通知

概述如何从通知中的按钮控制音乐播放器,以及如何从通知中收听按钮 *** 作 您应该使用RemoteViews的setOnClickPendingIntent()来监听通知中的按钮 *** 作. setOnClickPendingIntent()方法将绑定PendingIntent以响应按钮单击事件. 示例代码如下： private void showControllerInNotification() { 如何从通知中的按钮控制音乐播放器,以及如何从通知中收听按钮 *** 作解决方法 您应该使用RemoteVIEws的setonClickPendingIntent()来监听通知中的按钮 *** 作.

setonClickPendingIntent()方法将绑定PendingIntent以响应按钮单击事件.

示例代码如下：

private voID showControllerInNotification() {           PendingIntent pendingIntent = null;    Intent intent = null;    //Inflate a remote vIEw with a layout which you want to display in the notification bar.    if (mRemoteVIEws == null) {        mRemoteVIEws = new RemoteVIEws(getPackagename(),R.layout.notification_control_bar);    }       //define what you want to do after clicked the button in notification.    //Here we launcher a service by an action named "ACTION_Stop" which will stop the music play.    intent = new Intent(ACTION_Stop);           pendingIntent = PendingIntent.getService(getApplicationContext(),REQUEST_CODE_Stop,intent,PendingIntent.FLAG_UPDATE_CURRENT);    //In R.layout.notification_control_bar,there is a button vIEw IDentifIEd by bar_btn_stop    //We bind a pendingIntent with this button vIEw so when user click the button,it will excute the intent action.    mRemoteVIEws.setonClickPendingIntent(R.ID.bar_btn_stop,pendingIntent);    //Create the notification instance.    mNotification = new NotificationCompat.Builder(getApplicationContext())            .setSmallicon(R.drawable.ic_launcher).setongoing(true)            .setWhen(System.currentTimeMillis())                            .setContent(mRemoteVIEws)            .build();    //Show the notification in the notification bar.    mNotifiManager.notify(NOTIFICATION_ID,mNotification);      }

更新1：

响应 *** 作的服务是这样的：

public class MediaPlayerService extends Service {    public static final String ACTION_Stop="xxx.yyy.zzz.ACTION_Stop";    public static final String ACTION_PLAY="xxx.yyy.zzz.ACTION_PLAY";    public static final String ACTION_PAUSE="xxx.yyy.zzz.ACTION_PAUSE";@OverrIDepublic int onStartCommand(Intent intent,int flags,int startID) {    if (intent != null) {        String action = intent.getAction();                 if (!TextUtils.isEmpty(action)) {            if (action.equals(ACTION_PLAY)) {                startPlay();            }else if(action.equals(ACTION_PAUSE)) {                pausePlay();            }else if(action.equals(ACTION_Stop)) {                stopPlay();            }        }    }    return super.onStartCommand(intent,flags,startID);}private voID stopPlay(){    // do the play work here}private voID stopPause(){    // do the pause work here}private voID stopPlay(){    // do the stop work here}

}

在清单中注册服务：

<service        androID:name="xxx.yyy.zzz.MusicPlayService"        androID:exported="false" >        <intent-filter>            <action androID:name="xxx.yyy.zzz.ACTION_PLAY" />            <action androID:name="xxx.yyy.zzz.ACTION_PAUSE" />            <action androID:name="xxx.yyy.zzz.ACTION_Stop" />            <category androID:name="androID.intent.category.DEFAulT" />        </intent-filter>    </service>

对于音乐播放控件,您可以从here复制一些有用的代码sinppets.

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