Question

I have this problem in android. i have a main activity who calls a thread with this

   Runnable work = new Runnable() {

    public void run() {
        while (kill) {
            try {
                Thread.sleep(5000);
                connect();
                } catch (InterruptedException ex) {
                Logger.getLogger(MainActivity.class.getName()).log(Level.SEVERE, null, ex);
            }
        }


    }
};

kill its a public boolean in MainActivity.
what can i do to save the thread so when i resume the activity i still can kill the thread?

Answer 1

I think you want to do something closer to what this solution proposes.

However, if you really want to keep doing it in a Thread, then I suggest you extend a new class from Thread and add a method called killMe(). This will modify the (now private) boolean kill flag. Then, in your onRetainNonConfigurationInstance() you can return this Thread and you can retrieve it again in onResume. If you return and activity has not been killed, then it’s fine, you can just call killMe() on the existing Thread.

Example:

 @Override
  public Object onRetainNonConfigurationInstance() {
    return thread;
  }