喷溅屏有时才出现

我定义了一个SplashScreen,方法如下:

/** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ExceptionHandler.register(this);
        setFullscreen();
        splashScreen();
    }

private void splashScreen() {

        runOnUiThread(new Runnable() {

            @Override
            public void run() {
                setContentView(R.layout.splashscreen);
                splash = (ImageView) findViewById(R.id.splashscreenLayer);
                startSplashTime = new Date();
            }
        });

        new LoadingThread().start(); 
    }

private class LoadingThread extends Thread {

        @Override
        public void run() {
            checkNetwork();
        }

    }

在checknetwork()方法的特定条件下,调用stopslash方法:

public void stopSplash() {
        Message msg = new Message();
        msg.what = STOPSPLASH;

        Date endSplashTime = new Date();
        long time = endSplashTime.getTime() - startSplashTime.getTime();
        System.out.println("Time Splashscreen was displayed: " + time);
        if (time < SPLASH_MIN_TIME) {
            long delay = SPLASH_MIN_TIME - time;
            System.out.println("Delay Splashscreen for: " + delay);
            try {
                Thread.sleep(delay);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            splashHandler.sendMessage(msg);
        } else {
            System.out.print("Show Splashscreen now");
            splashHandler.sendMessage(msg);
        }
    }
private Handler splashHandler = new Handler() {

        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case STOPSPLASH:
                    splash.setVisibility(View.GONE);
                break;
            }
            super.handleMessage(msg);
        }

    };

问题是,有时(可能是10个中的1个)如果我直接从Eclipse启动应用程序,splashscreen不会显示,而是显示一个黑屏。

其他问题:如果我重新启动应用程序,例如在单击设备上的后退按钮后调用OnDestroy()之后,SplashScreen几乎不会显示。

有什么提示吗?

我的假设是:可以这样吗,加载线程的启动速度比可运行文件“快”,因此网络工作人员在设置SplashScreen之前就已经完成了?