通知中的音乐播放器控件 [英] Music player control in notification

问题描述

如何在android中设置播放/暂停、下一个和上一个按钮的通知！

how to set notification with play/pause, next and previous button in android.!

我是 Android 的新手 &也在堆栈溢出.所以请耐心等待.

I am new with Android & also at stack overflow. So please bear with me.

我在歌曲开始播放时设置了通知，如下所示:

I set notification when song is start to play like below :

`

@SuppressLint("NewApi")
public void setNotification(String songName){
    String ns = Context.NOTIFICATION_SERVICE;
    NotificationManager notificationManager = (NotificationManager) getSystemService(ns);


    @SuppressWarnings("deprecation")
    Notification notification = new Notification(R.drawable.god_img, null, System.currentTimeMillis());

    RemoteViews notificationView = new RemoteViews(getPackageName(), R.layout.notification_mediacontroller);

    //the intent that is started when the notification is clicked (works)
    Intent notificationIntent = new Intent(this, AudioBookListActivity.class);
    PendingIntent pendingNotificationIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

    notification.contentView = notificationView;
    notification.contentIntent = pendingNotificationIntent;
    notification.flags |= Notification.FLAG_NO_CLEAR;

    //this is the intent that is supposed to be called when the button is clicked
    Intent switchIntent = new Intent(this, AudioPlayerBroadcastReceiver.class);
    PendingIntent pendingSwitchIntent = PendingIntent.getBroadcast(this, 0, switchIntent, 0);

    notificationView.setOnClickPendingIntent(R.id.btn_play_pause_in_notification, pendingSwitchIntent);
    notificationManager.notify(1, notification);        
}

`

我创建了如下所示的 BroadcastReceiver:`

I have create BroadcastReceiver like below : `

   private class AudioPlayerBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        System.out.println("intent action = " + action);
        long id = intent.getLongExtra("id", -1);

        if(Constant.PLAY_ALBUM.equals(action)) {
            //playAlbum(id);
        } else if(Constant.QUEUE_ALBUM.equals(action)) {
            //queueAlbum(id);
        } else if(Constant.PLAY_TRACK.equals(action)) {
            //playTrack(id);
        } else if(Constant.QUEUE_TRACK.equals(action)) {
            //queueTrack(id);
        } else if(Constant.PLAY_PAUSE_TRACK.equals(action)) {
 //                playPauseTrack();
            System.out.println("press play");
        } else if(Constant.HIDE_PLAYER.equals(action)) {
 //                hideNotification();
            System.out.println("press next");
        }
        else {
        }
    }

}`

现在，我成功设置了自定义通知，但如何处理通知按钮及其事件，如播放/暂停、上一个和下一个...等.我也尝试使用广播接收器，但无法得到任何响应.

Now, I set custom notification successfully but how can i handle notification buttons and its events like play/pause, previous and next... etc. I also try using broadcast receiver but could not get any response.

寻求专家的解决方案和指导，请帮助我.

Seeking solution and guidance from experts, please help me out.

提前致谢.

推荐答案

您需要设置一个custom intent action，而不是AudioPlayerBroadcastReceiver 组件类.

You need to set a custom intent action, not the AudioPlayerBroadcastReceiver component class.

用这样的自定义操作名称创建一个意图

Create a Intent with custom action name like this

  Intent switchIntent = new Intent("com.example.app.ACTION_PLAY");

然后，注册PendingIntent Broadcast 接收器

  PendingIntent pendingSwitchIntent = PendingIntent.getBroadcast(this, 100, switchIntent, 0);

然后，为播放控件设置onClick，如果需要，为其他控件执行类似的自定义操作.

Then, set a onClick for the play control , do similar custom action for other controls if required.

  notificationView.setOnClickPendingIntent(R.id.btn_play_pause_in_notification, pendingSwitchIntent);

接下来，像这样在AudioPlayerBroadcastReceiver中注册自定义动作

Next,Register the custom action in AudioPlayerBroadcastReceiver like this

   <receiver android:name="com.example.app.AudioPlayerBroadcastReceiver" >
        <intent-filter>
            <action android:name="com.example.app.ACTION_PLAY" />
        </intent-filter>
    </receiver>

最后，当在 Notification RemoteViews 布局上点击播放时，您将通过 BroadcastReceiver 收到 play action>

Finally, when play is clicked on Notification RemoteViews layout, you will receive the play action by the BroadcastReceiver

public class AudioPlayerBroadcastReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {

    String action = intent.getAction();

    if(action.equalsIgnoreCase("com.example.app.ACTION_PLAY")){
        // do your stuff to play action;
    }
   }
}

如何为代码中注册的广播接收器设置意图过滤器

你也可以通过Intent filter为注册的Broadcastreceiver设置Custom Action，就像这样

You can also set the Custom Action through Intent filter from code for the registered Broadcast receiver like this

    // instance of custom broadcast receiver
    CustomReceiver broadcastReceiver = new CustomReceiver();

    IntentFilter intentFilter = new IntentFilter();
    intentFilter.addCategory(Intent.CATEGORY_DEFAULT);
    // set the custom action
    intentFilter.addAction("com.example.app.ACTION_PLAY");
    // register the receiver
    registerReceiver(broadcastReceiver, intentFilter); 

这篇关于通知中的音乐播放器控件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！