如何在 java 中的一段时间后停止线程？

Question

In my android app I am having a thread in which I fetch data from a web service. So normally it works well, but sometimes if the connection is too slow it kind of hangs. So is there any way by which I can set some time say 1 min, and if the thread process is not completed in 1 min. then I would like to stop this thread and display a message to the user that connection is weak/slow and try later. Please help !!

Answer 1

This is a bad idea. The Thread.stop method is deprecated for good reasons.

I suggest you do the following: Set the network time-outs according to your preferences. If this doesn't help, I suggest that you simply throw away the reference to the thread, (ignore it, let it die out and get garbage collected) and respond with a nice message about network failure. You can very well start a new thread for trying again.

Answer 2

you can use the method: Thread.interrupt(); the method Thread.stop() is deprecated

Answer 3

Create a stop method like this, and call interrupt subsequently.

public void stop() {
    Thread currentThread= someThread;
    someThread= null;
    currentThread.interrupt();
}

Answer 4

I don't know whether it is supported in Android, but this is exactly what the Future objects returned from an ExecutorService are supposed to do for you. In particular, the cancel(boolean) method can be used to interrupt the task if it has started but not finished.

The tasks should be written to be aware that they may be interrupted, and abort cleanly if they have been. Most of the framework IO methods can be interrupted, so you just need to worry about your own code.