android 蓝牙连接广播
时间: 2023-07-27 07:07:31 浏览: 276
要连接蓝牙设备并接收广播,您需要完成以下步骤:
1.获取BluetoothAdapter对象并确保蓝牙已启用。
2.使用BluetoothDevice对象连接到目标设备。
3.创建BluetoothSocket对象并使用BluetoothDevice对象打开连接。
4.注册BroadcastReceiver以接收蓝牙连接状态更改广播。
5.在BroadcastReceiver中处理广播,以便在设备连接或断开连接时采取适当的措施。
以下是一个简单的示例代码,用于连接到蓝牙设备并接收广播:
```
// 获取BluetoothAdapter对象
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
// 确保蓝牙已启用
if (bluetoothAdapter.isEnabled()) {
// 获取BluetoothDevice对象
BluetoothDevice device = bluetoothAdapter.getRemoteDevice(address);
// 连接到目标设备
BluetoothSocket socket = device.createRfcommSocketToServiceRecord(uuid);
socket.connect();
// 注册BroadcastReceiver以接收蓝牙连接状态更改广播
BroadcastReceiver receiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
// 设备已连接
} else if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)) {
// 设备已断开连接
}
}
};
IntentFilter filter = new IntentFilter();
filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
registerReceiver(receiver, filter);
}
```
请注意,上述示例仅用于说明目的,实际操作中可能需要进行更多错误处理和安全检查。
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