Question

我希望从Android设备中的应用程序连接到远程设备（配对）。远程设备是HC-05模块。我的鳕鱼是：

private class ConnectThread extends Thread {
    private final BluetoothSocket mmSocket;
    private final BluetoothDevice mmDevice;

    public ConnectThread(BluetoothDevice device) {
        // Use a temporary object that is later assigned to mmSocket,
        // because mmSocket is final
        BluetoothSocket tmp = null;
        mmDevice = device;

        // Get a BluetoothSocket to connect with the given BluetoothDevice
        try {
            // MY_UUID is the app's UUID string, also used by the server
            // code
            tmp = mmDevice.createRfcommSocketToServiceRecord(MY_UUID);
        } catch (IOException e) {
        }
        mmSocket = tmp;
    }

    @Override
    public void run() {
        // Cancel discovery because it will slow down the connection
        ba.cancelDiscovery();

        try {
            mmSocket.connect();
        } catch (IOException e) {}

        // Do work to manage the connection (in a separate thread)
        // manageConnectedSocket(mmSocket);
        // connected();
        tv1.setText("connect");

    }

    /** Will cancel an in-progress connection, and close the socket */
    @SuppressWarnings("unused")
    public void cancel() {
        try {
            mmSocket.close();
        } catch (IOException e) {
        }
    }
}

但是在mSocket.connect（）行中出错。当我运行我的应用程序然后获取消息：不幸的是（应用程序名称）已停止。

请帮忙。

Answer 1

不要默默忽略IOException。如果你得到的IOException意味着你。由于任何原因，无法创建套接字。然后mSocket保持为null，因此您将获得异常。你可能在清单中没有蓝牙权限。

android蓝牙连接远程设备

1 个答案: