问创建新线程以更新GUI

EN

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_game);

    context = this.getApplicationContext();

    /*load all bitmaps*/
    loadBitmaps();

    /*get all the activities components*/
    gameCanvasRL = (RelativeLayout)findViewById(R.id.gameCanvasRL);
    playerScoreTV = (TextView)findViewById(R.id.playerPoints);

    /*GameManager instance*/
    manager = GameManager.getInstance();

    /*Start Threads*/
    startAllThreads();
}

private void startAllThreads() {
    refreshCanvasHandler = new Handler();
    spawnHandler = new Handler();

    refreshCanvasThread = new Thread(new RefreshCanvasTask());
    spawnTask = new Thread(new spawnTask());

    refreshCanvasThread.start();
    spawnTask.start();
}

class RefreshCanvasTask implements Runnable {
    @Override
    public void run() {
        while(true) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            refreshCanvasHandler.post(new Runnable() {
                @Override
                public void run() {
                    refreshCanvas();
                }
            });
        }
    }
}

    /*Move all germs*/
    manager.moveGerms();
    germSize = manager.getGerms().size();

    if(gameCanvasRL.getChildCount() > 0)
        gameCanvasRL.removeAllViews();

    for(int i = 0; i < germSize; i++) {
        gameCanvasRL.addView(manager.getGerms().get(i));
    }

}