How to stop the SurfaceView in Android?

Question

Recently when writing a game I experienced a problem. In my game I used SurfaceView and I used the while(true) as the condition. After I press the home button, the program quits and I see the log. But I find the loop While(true) is still running. Why is the loop still running after the Activity has stopped? Could anybody help and tell me the reason. Thanx

kdmurray · Answer 1 · 2012-09-24T07:58:38.197

1

A better solution might be to set a bool to hold the state of the application and then set that to false when the game quits.

while(appActive)
    //do game logic

EDIT: Thanks to Braj and Fildor for feedback

in the onPause() event handler add a line

appActive = false;

((NOTE: I've not done any Android development, this is purely a theoretical response))

edited Sep 24 '12 at 07:58

answered Sep 24 '12 at 07:37

kdmurray

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Though it's correct. Do it in onPause(), because this is the only callback, that's guaranteed to be called. – Fildor Sep 24 '12 at 07:53
I work the other way but thanks for you theoretical response,+1 – Winnie Sep 25 '12 at 01:45

score 0 · Accepted Answer · answered Sep 24 '12 at 07:56

I do it like this in the game I'm working on now:

    //Makes the thread draw until the state of running is set to false
    while(this.running)
    {
            //Draw
    }
    this.thread.interrupt();

In onPause:

//Stop the thread that is responible for the drawing.
this.worker.running = false;

In onResume:

//Creates a new thread instance which sets this.running to true and calls the drawing method again
this.worker.restart();

How to stop the SurfaceView in Android?

2 Answers2