奇怪的问题,似乎已经提到了几次在这里。我有一个线程,也使用了AsyncTask,并且我正试图根据用户的请求使其停止运行。 因此,自然,我在while循环中使用布尔值。该线程始终将布尔值视为true,即使在其他位置输出false也是如此。Android - 使用while循环停止线程
代码如下,任何帮助表示赞赏!
/**
* Opens new socket and listens on the specified port until a user stops the thread, the logview is updated with messages
*/
public void run() {
byte[] receiveData = new byte[1024];
byte[] sendData = new byte[1024];
Log.e("Text2Server", "Starting Server");
this.running = true;
while(this.running) {
Log.i("Text2Server", "Server should be running: " + running);
try {
serverSocket = new DatagramSocket(port);
} catch (SocketException e1) {
e1.printStackTrace();
}
try {
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
serverSocket.receive(receivePacket);
final String fromIP = new String(receivePacket.getAddress().toString());
final int fromPort = receivePacket.getPort();
final String received = new String(receivePacket.getData());
Date now = new Date();
final String logput = DateFormat.getDateTimeInstance().format(now) + " - Message from: " + fromIP + " through Port: " + fromPort + " with Message: " + received;
Log.i("Text2Server", logput);
//All UI Operations are done in this thread
uiHandler.post(new Runnable(){
@Override
public void run() {
logTextView.append(logput);
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
serverSocket.close();
}
public void stopThread() {
this.running = false;
Log.i("Text2Server", "Stopping Server, value is now: " + running);
}
调用stopThread()使其成为false,但线程仍然进入while并打印出true。有什么想法吗?
谢谢!
你是怎么给stopThread打电话的? – Rob
从活动中,我创建线程的一个实例,将其设置为在该活动中运行,然后在用户按下按钮时调用stopThread() –
在日志中显示“running”的值而不是“this.running” ... – BrainCrash