adroid设置启动app后显示停留的页面

protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.start_view);
		myApp = (MyApp) StartActivity.this.getApplication();
		myApp.addActivity(this);
		//start new activity
		new Timer().schedule(new TimerTask() {
			@Override
			public void run() {
				try {
					Thread.sleep(2000);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
				//start new activity
				Intent it=new Intent();
				it.setClass(StartActivity.this,MainActivity.class);
				startActivity(it);
				StartActivity.this.finish();
			}
		}, 1000);
	}