how to pause and resume a surfaceView thread

Question

I have a surfaceView setup and running, but when I resume it I get an error that the thread has already been started. What\'s the proper way to handle when the app goes to t

Answer 1

This is what I have used. The app does not crashes now.

View Class:

holder.addCallback(new Callback() {

        public void surfaceDestroyed(SurfaceHolder holder) {
            gameLoopThread.setRunning(false);
            gameLoopThread.stop();
        }

        public void surfaceCreated(SurfaceHolder holder) {
            gameLoopThread.setRunning(true);
            gameLoopThread.start();

        }

In the GameLoopThread :

private boolean running = false;

public void setRunning(boolean run) {
    running = run;
}
@Override
public void run() {
    long ticksPs=1000/FPS;
    long startTime;
    long sleepTime;

while(running){
        Canvas c = null;
        startTime=System.currentTimeMillis();
        try {
            c = view.getHolder().lockCanvas();
            synchronized (view.getHolder()) {

                view.onDraw(c);

            }

        } finally {

            if (c != null) {
                view.getHolder().unlockCanvasAndPost(c);
            }

        }
        sleepTime=ticksPs-(System.currentTimeMillis()-startTime);
        try{

            if(sleepTime>0){
                sleep(sleepTime);
            }
            else
                sleep(10);
        } catch(Exception e){}
}

}

I hope it will help.