有一个广播制作时，插入耳机：的http://developer.android.com/reference/android/content/Intent.html#ACTION_HEADSET_PLUG

There is a broadcast made when the headphones are plugged in: http://developer.android.com/reference/android/content/Intent.html#ACTION_HEADSET_PLUG

您需要注册一个广播接收器来接受这一点，并执行您所需的操作。

You need to register a BroadcastReceiver to receive this and perform your required actions.