java - 什么是蓝牙 uuid？我怎样才能得到它？

Question

我正在尝试使用蓝牙将我的应用程序连接到服务器。但我不知道这个 uuid 是什么以及我应该如何找到它？

class ConnectThread extends Thread {

        private final BluetoothSocket mmSocket;
        private final BluetoothDevice mmDevice;

            // 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 = device.createRfcommSocketToServiceRecord(MY_UUID);

///这给了我一个错误，我应该如何修复它？

Answer 1

如果您使用的是BluetoothChat源代码，则在文件BluetoothChatService.java中找到UUID，如下所示:

public class BluetoothChatService {
    .
    .
    // Unique UUID for this application
    private static final UUID MY_UUID_SECURE =
    UUID.fromString("fa87c0d0-afac-11de-8a39-0800200c9a66");
    private static final UUID MY_UUID_INSECURE = 
    UUID.fromString("8ce255c0-200a-11e0-ac64-0800200c9a66");
    .
    .