blocks|key|23223|text|AudioManager+mAudioManager+=+(AudioManager)+getSystemService(Context.AUDIO_SERVICE);

if(mAudioManager.isMusicActive())+{
++++Intent+i+=+new+Intent(SERVICECMD);
++++i.putExtra(CMDNAME+,+CMDSTOP+);
++++YourApplicationClass.this.sendBroadcast(i);
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|23224|您可以通过获取音频管理器，然后向其发送命令。|unstyled|23225|这些是命令。|23226|+public+static+final+String+CMDTOGGLEPAUSE+=+"togglepause";
+public+static+final+String+CMDPAUSE+=+"pause";
+public+static+final+String+CMDPREVIOUS+=+"previous";
+public+static+final+String+CMDNEXT+=+"next";
+public+static+final+String+SERVICECMD+=+"com.android.music.musicservicecommand";
+public+static+final+String+CMDNAME+=+"command";
+public+static+final+String+CMDSTOP+=+"stop";|23227|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$B|C]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

if(mAudioManager.isMusicActive()) {
 Intent i = new Intent(SERVICECMD);
 i.putExtra(CMDNAME , CMDSTOP );
 YourApplicationClass.this.sendBroadcast(i);
}
</code></pre>

you can by getting the audiomanager then sending commands to it.

these are the commands.

<pre><code> public static final String CMDTOGGLEPAUSE = "togglepause";
 public static final String CMDPAUSE = "pause";
 public static final String CMDPREVIOUS = "previous";
 public static final String CMDNEXT = "next";
 public static final String SERVICECMD = "com.android.music.musicservicecommand";
 public static final String CMDNAME = "command";
 public static final String CMDSTOP = "stop";
</code></pre>

blocks|key|23267|text|发送广播接收器的Intent的问题是，用户必须至少打开音乐播放器一次，而且，它不适用于许多第三方音乐播放器。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|23268|下面给出的代码适用于所有音乐播放器。|23269|long+eventtime+=+SystemClock.uptimeMillis();

Intent+downIntent+=+new+Intent(Intent.ACTION_MEDIA_BUTTON,+null);
KeyEvent+downEvent+=+new+KeyEvent(eventtime,+eventtime,+KeyEvent.ACTION_DOWN,+KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE,+0);
downIntent.putExtra(Intent.EXTRA_KEY_EVENT,+downEvent);
sendOrderedBroadcast(downIntent,+null);

Intent+upIntent+=+new+Intent(Intent.ACTION_MEDIA_BUTTON,+null);
KeyEvent+upEvent+=+new+KeyEvent(eventtime,+eventtime,+KeyEvent.ACTION_UP,+KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE,+0);
upIntent.putExtra(Intent.EXTRA_KEY_EVENT,+upEvent);
sendOrderedBroadcast(upIntent,+null);

/*NEXT*/
Intent+downIntent+=+new+Intent(Intent.ACTION_MEDIA_BUTTON,+null);
KeyEvent+downEvent+=+new+KeyEvent(eventtime,+eventtime,+KeyEvent.ACTION_DOWN,+++KeyEvent.KEYCODE_MEDIA_NEXT,+0);
downIntent.putExtra(Intent.EXTRA_KEY_EVENT,+downEvent);
sendOrderedBroadcast(downIntent,+null);

/*PREVIOUS*/
Intent+downIntent+=+new+Intent(Intent.ACTION_MEDIA_BUTTON,+null);
KeyEvent+downEvent+=+new+KeyEvent(eventtime,+eventtime,+KeyEvent.ACTION_DOWN,+KeyEvent.KEYCODE_MEDIA_PREVIOUS,+0);
downIntent.putExtra(Intent.EXTRA_KEY_EVENT,+downEvent);
sendOrderedBroadcast(downIntent,+null);|code-block|syntax|javascript|23270|我已经在索尼、Htc和三星的设备上测试了这段代码。|23271|此代码模拟免提(耳机)中的播放/暂停按钮操作。|23272|entityMap^0|8|6|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|Y|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|R|$]]

Problem with sending <code>Intent</code> for broadcast receiver is that, user has to open Music Player at least once, also, It does not work for many third party music players.

The code given below works on all music players.

<pre><code>long eventtime = SystemClock.uptimeMillis();

Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE, 0);
downIntent.putExtra(Intent.EXTRA_KEY_EVENT, downEvent);
sendOrderedBroadcast(downIntent, null);

Intent upIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
KeyEvent upEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE, 0);
upIntent.putExtra(Intent.EXTRA_KEY_EVENT, upEvent);
sendOrderedBroadcast(upIntent, null);

/*NEXT*/
Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_NEXT, 0);
downIntent.putExtra(Intent.EXTRA_KEY_EVENT, downEvent);
sendOrderedBroadcast(downIntent, null);

/*PREVIOUS*/
Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PREVIOUS, 0);
downIntent.putExtra(Intent.EXTRA_KEY_EVENT, downEvent);
sendOrderedBroadcast(downIntent, null);
</code></pre>

I have tested this code on Sony, Htc and Samsung devices.

This code imitates play/pause button action from hands-free(ear phones).

blocks|key|23298|text|如果您想控制音乐播放器(当前正在播放的播放器)，有一种方法可以将KeyEvents发送到它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|23299|if+(mAudioManager+==+null)+mAudioManager+=+(AudioManager)getSystemService(AUDIO_SERVICE);

KeyEvent+event+=+new+KeyEvent(KeyEvent.ACTION_DOWN,+KeyEvent.KEYCODE_MEDIA_PLAY);
mAudioManager.dispatchMediaKeyEvent(event);|code-block|syntax|javascript|23300|这是一种更安全的方式，因为通常广播keyEvent可能会导致同时播放多个玩家。|23301|注意:它需要minSdk+19或更高版本。|23302|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you want to control the music player (the current playing one) there is a way to send KeyEvents to it:

<pre><code>if (mAudioManager == null) mAudioManager = (AudioManager)getSystemService(AUDIO_SERVICE);

KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PLAY);
mAudioManager.dispatchMediaKeyEvent(event);
</code></pre>

This is a safer way, cause usually broadcasting keyEvent could cause to play more than one player at a time. 

Note: it needs to have minSdk 19 or more.

blocks|key|23327|text|似乎引用的KeyEvent方法在最新的SDK上对我不起作用。使用AudioManager的dispatchMediaKeyEvent()方法和一个已定义的KeyEvent对我来说很有效。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|23328|请参阅：here|offset|length|23329|代码示例：|23330|this.mAudioManager+=+(AudioManager)+this.context.getSystemService(Context.AUDIO_SERVICE);

long+eventtime+=+SystemClock.uptimeMillis();

KeyEvent+downEvent+=+new+KeyEvent(eventtime,+eventtime,+KeyEvent.ACTION_DOWN,+KeyEvent.KEYCODE_MEDIA_NEXT,+0);
mAudioManager.dispatchMediaKeyEvent(downEvent);

KeyEvent+upEvent+=+new+KeyEvent(eventtime,+eventtime,+KeyEvent.ACTION_UP,+KeyEvent.KEYCODE_MEDIA_NEXT,+0);
mAudioManager.dispatchMediaKeyEvent(upEvent);|code-block|syntax|javascript|23331|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.android.com/reference/android/media/AudioManager.html#dispatchMediaKeyEvent(android.view.KeyEvent)^0|0|4|4|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@$D|W|E|X|1|Y]]|A|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

Seems like the referenced KeyEvent methods don't work for me on the latest SDK. Using the AudioManager's dispatchMediaKeyEvent() method with a defined KeyEvent worked for me.

See: <a href="https://developer.android.com/reference/android/media/AudioManager.html#dispatchMediaKeyEvent(android.view.KeyEvent)" rel="nofollow noreferrer" title="Here">here</a>

Code example:

<pre><code>this.mAudioManager = (AudioManager) this.context.getSystemService(Context.AUDIO_SERVICE);

long eventtime = SystemClock.uptimeMillis();

KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_NEXT, 0);
mAudioManager.dispatchMediaKeyEvent(downEvent);

KeyEvent upEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_NEXT, 0);
mAudioManager.dispatchMediaKeyEvent(upEvent);
</code></pre>

How to control the default music player of android or any other player? By controlling i mean pause, play, next etc. Do i have to bind the service? I have tried to use the <code>IMediaPlaybackService</code> but it is not working. There is certainly a way out as i have seen apps in the android market which controls the music player. Any idea?

Control the default music player of android or any other music player

如何控制android或其他播放器的默认音乐播放器？所谓控制，我指的是暂停、播放、下一步等等。我必须绑定服务吗？我试过使用IMediaPlaybackService，但它不工作。正如我在android市场看到的控制音乐播放器的应用程序一样，肯定有一条出路。有什么想法吗？

问控制android或任何其他音乐播放器的默认音乐播放器
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