我是Java /面向对象语言的新手,想在语法上获得一些帮助。
我在ConnectThread.java中有一个定义为的类
public class ConnectThread extends Thread {
private final BluetoothSocket mmSocket;
private final BluetoothDevice mmDevice;
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
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
UUID uuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
tmp = device.createRfcommSocketToServiceRecord(uuid);
} catch (IOException e) { }
mmSocket = tmp;
}
public void run() {
// Cancel discovery because it will slow down the connection
mBluetoothAdapter.cancelDiscovery();
try {
// Connect the device through the socket. This will block
// until it succeeds or throws an exception
mmSocket.connect();
} catch (IOException connectException) {
// Unable to connect; close the socket and get out
try {
mmSocket.close();
} catch (IOException closeException) { }
return;
}
// Do work to manage the connection (in a separate thread)
//manageConnectedSocket(mmSocket);
}
/** Will cancel an in-progress connection, and close the socket */
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) { }
}
}
在这里,我尝试通过在connect方法中编写以下代码来创建线程并连接该线程:
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
BluetoothDevice targetdevice;
Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
if (pairedDevices.size() > 0)
{
// Loop through paired devices
for (BluetoothDevice device : pairedDevices)
{
if (device.getName().equals("HC-06"))
targetdevice = device;
}
}
Thread writeThread = new Thread();
writeThread.ConnectThread(targetdevice);
我在最后一行收到错误,提示“对于类型Thread未定义方法ConnectThread(BluetoothDevice)”
我以为因为ConnectThread是Thread的扩展类,所以我可以使用它下面的方法。不是这样吗?这样做的正确方法是什么?
谢谢!
最佳答案
将最后两个字符串更改为:
Thread writeThread = new ConnectThread(targetdevice);
当您需要启动
ConnectThread
时,请使用start()
方法: writeThread.start(); //If you need start run() method of ConnectThread.