如果蓝牙设备正在连接/断开连接，则广播? [英] Broadcast if a bluetooth device is connecting/disconnecting?

问题描述

我想在连接特定蓝牙设备时启动服务，并在断开连接时停止该服务.显然，我不想让后台服务总是检查是否连接了 BT 设备，所以我想用接收器来实现这一点.

I want start a service, when a specific bluetoothdevice is connected and stop this service when it's disconnected. Obviously I don't want to have a background service that is always checking if a BT device is connected, so I want to achieve this with a Receiver.

这真的可能吗?android.bluetooth.device.action.ACL_CONNECTED 在此处被提及，但显然没有用.

Is this actually possible? android.bluetooth.device.action.ACL_CONNECTED is mentioned here, but apparently it didn't work.

谢谢！

推荐答案

<intent-filter>
    <action android:name="android.bluetooth.device.action.ACL_CONNECTED" />
    <action android:name="android.bluetooth.device.action.ACL_DISCONNECT_REQUESTED" />
    <action android:name="android.bluetooth.device.action.ACL_DISCONNECTED" />
</intent-filter>

这些是您必须为广播接收器添加的过滤器.

These are the filters you have to add with your broadcast receiver.

ACL_CONNECTED 表示蓝牙连接，ACL_DISCONNECTED 表示蓝牙断开

ACL_CONNECTED signals when bluetooth is connected and ACL_DISCONNECTED signals bluetooth disconnection

对于特定设备，您必须在广播接收器中检查意图/上下文

For specific device you have to check intents/context in broadcast receiver

您必须添加的两个权限是:

The two permission you have to add are:

<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.BLUETOOTH" />

我认为这应该可以解决您的问题.

I think this should solve your problem.

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