如何获得对应用蓝牙耳机连接状态启动时采用Android2.2？ [英] How to get Bluetooth Headset connection state on application start-up using Android2.2?

问题描述

如何使用的应用程序启动的Andr​​oid API级8获得蓝牙耳机连接状态（连接/断开）？
是否有任何的粘性广播意图在Android2.2的可用？
是否有任何的API来获取初始蓝牙耳机的状态？
有任何解决方法可用？

How to get Bluetooth Headset connection state (connected/disconnected) using android api level 8 on application start-up? Is there any sticky broadcast intent available in android2.2? Is there any API to fetch initial Bluetooth Headset state? Is there any workaround available?

推荐答案

我想出解决办法：

private static final String ACTION_BT_HEADSET_STATE_CHANGED  = "android.bluetooth.headset.action.STATE_CHANGED";
private static final int STATE_CONNECTED = 0x00000002; 
private static final int STATE_DISCONNECTED  = 0x00000000;  
private static final String EXTRA_STATE = "android.bluetooth.headset.extra.STATE";

private BroadcastReceiver mBlueToothHeadSetEventReceiver = new BroadcastReceiver() {

@Override
public void onReceive(Context context, Intent intent) {
    try {
        String action = intent.getAction();

        if(action == null)
            return;

        if(action.equals(ACTION_BT_HEADSET_STATE_CHANGED)){
            int extraData = intent.getIntExtra(EXTRA_STATE  , STATE_DISCONNECTED);
            if(extraData == STATE_CONNECTED ){

                //TODO :

            }else if(extraData == STATE_DISCONNECTED){

                //TODO:
            }
        }
        } catch (Exception e) {

        //TODO:

        }
}
};

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