13
如何验证当前是否有任何蓝牙耳机连接到android？如何验证蓝牙耳机是否在Android上连接？
像：
如果有conected耳机，声音必须能够路由到这款耳机
但如果心不是耳机，声音必须留在扬声器
这必须在应用期间检查，因为如果耳机的电池熄灭，它必须向扬声器发回声音
解决以下/
public class BluetoothReceiver extends BroadcastReceiver {
private AudioManager localAudioManager;
private static final int STATE_DISCONNECTED = 0x00000000;
private static final String EXTRA_STATE = "android.bluetooth.headset.extra.STATE";
private static final String TAG = "BluetoothReceiver";
private static final String ACTION_BT_HEADSET_STATE_CHANGED = "android.bluetooth.headset.action.STATE_CHANGED";
private static final String ACTION_BT_HEADSET_FORCE_ON = "android.bluetooth.headset.action.FORCE_ON";
private static final String ACTION_BT_HEADSET_FORCE_OFF = "android.bluetooth.headset.action.FORCE_OFF";
@Override
public void onReceive(final Context context, final Intent intent) {
Log.i(TAG,"onReceive - BluetoothBroadcast");
localAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
final String action = intent.getAction();
if (action.equals(ACTION_BT_HEADSET_STATE_CHANGED)) {
final int extraData = intent.getIntExtra(EXTRA_STATE, STATE_DISCONNECTED);
if (extraData == STATE_DISCONNECTED) {
localAudioManager.setBluetoothScoOn(false);
localAudioManager.stopBluetoothSco();
localAudioManager.setMode(AudioManager.MODE_NORMAL);
Log.i(TAG, "Bluetooth Headset Off " + localAudioManager.getMode());
Log.i(TAG, "A2DP: " + localAudioManager.isBluetoothA2dpOn() + ". SCO: " + localAudioManager.isBluetoothScoAvailableOffCall());
} else {
localAudioManager.setMode(0);
localAudioManager.setBluetoothScoOn(true);
localAudioManager.startBluetoothSco();
localAudioManager.setMode(AudioManager.MODE_IN_CALL);
Log.i(TAG, "Bluetooth Headset On " + localAudioManager.getMode());
Log.i(TAG, "A2DP: " + localAudioManager.isBluetoothA2dpOn() + ". SCO: " + localAudioManager.isBluetoothScoAvailableOffCall());
}
}
if (action.equals(ACTION_BT_HEADSET_FORCE_ON)) {
localAudioManager.setMode(0);
localAudioManager.setBluetoothScoOn(true);
localAudioManager.startBluetoothSco();
localAudioManager.setMode(AudioManager.MODE_IN_CALL);
Log.i(TAG, "Bluetooth Headset On " + localAudioManager.getMode());
Log.i(TAG, "A2DP: " + localAudioManager.isBluetoothA2dpOn() + ". SCO: " + localAudioManager.isBluetoothScoAvailableOffCall());
}
if (action.equals(ACTION_BT_HEADSET_FORCE_OFF)) {
localAudioManager.setBluetoothScoOn(false);
localAudioManager.stopBluetoothSco();
localAudioManager.setMode(AudioManager.MODE_NORMAL);
Log.i(TAG, "Bluetooth Headset Off " + localAudioManager.getMode());
Log.i(TAG, "A2DP: " + localAudioManager.isBluetoothA2dpOn() + ". SCO: " + localAudioManager.isBluetoothScoAvailableOffCall());
}
}
}
已解决!!!!!!! – 2012-09-18 16:44:24
我刚刚清理了您的代码，并将其推广到其他用户遇到同样问题。不要发布无关的东西，如“android.bluetooth.headset.action.FORCE_ON”或“android.bluetooth.headset.action.FORCE_OFF”（它指的是你自己创建的动作）。请不要使用外语评论。顺便说一句，谢谢你的代码。 :) – DragonWork 2013-01-16 18:45:09
我发现最好和最完整的解决方案！ – 2015-04-01 11:50:07