Question

I have a problem with my GameLoop in my Android projekt (my first Android projekt):

I have an Activity that the GameView (SurfaceView) starts.

setContentView(new GameView(this));

The GameView (SurfaceView) starts the GameThread.

    public void surfaceCreated(SurfaceHolder holder) {
    Log.d("GameView", "surfaceCreate");
    surfaceHolder = holder;
    synchronized (this) {               //Must be executed exclusively
        if (gameLoop == null) {
            gameLoop = new GameLoop();  //Start animation here
            gameLoop.start();
        }
    }
}

    private class GameLoop extends Thread {

    public boolean running = true;

    public void run() {
        Canvas canvas = null;
        final SurfaceHolder surfaceHolder = GameView.this.surfaceHolder;

        while (running) {
            try {
                canvas = surfaceHolder.lockCanvas();
                synchronized (surfaceHolder) {
                    update();

                    checkCollision();

                    render(canvas);
                }
            } finally {
                if (canvas != null)
                    surfaceHolder.unlockCanvasAndPost(canvas);
            }
        }
    }

}

And now I can play. Up to this point and everything is OK.

If the player loses a new Activity (GameOver) started and the GameThread stoped.
Here he crashes!

    public void endgame() {

    Log.d("GameView", "ENDGAME");

    this.score.setStopscoring(true);
    this.box.stop();

    synchronized (surfaceHolder) {
        boolean retry = true;
        if (gameLoop != null) { 
            gameLoop.running = false;
            while (retry) {
                try {
                    gameLoop.join();
                    retry = false;
                } catch (Exception e) {
                }
            }
        }

    }

    Context context = getContext();
    context.startActivity(new Intent(context, _1GameOver.class));   

}

Afte the gameLoop.join(); it freezes.

I’ve tried a lot but nothing worked.
Thank you before for your help

Answer 1

I have not found the exact error.

Instead, I converted the code a bit.

    public void surfaceDestroyed(SurfaceHolder holder) {

        boolean retry = true;

        if (gameLoop != null) {

            gameLoop.running = false;

            while (retry) {
                try {
                    gameLoop.join();
                    retry = false;  
                } catch (InterruptedException e) {
                }
            }
        }
        gameLoop = null;
}

And everything I conclude where I close my Activity.

((_1GameActivity)getContext()).finish();

Not pretty but it works!

Pease out