在特定时间内隐藏状态栏和标题栏

Question

我想在特定时间内在同一布局中隐藏状态和标题栏。比如 2 或 3 秒。为此，我尝试了Timer，据我所知，必须在SetContentView和Super.OnCreate之前调用功能请求(requestFeature()(。所以，我写了这段代码：

@Override
protected void onCreate(Bundle savedInstanceState) {
Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
// Hiding Title bar of this activity screen //
getWindow().requestFeature(Window.FEATURE_NO_TITLE);
// Making this activity, full screen //
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
}
});
}
}, 1000, 5000);

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);

但它带有以下错误：

android.util.AndroidRuntimeException: requestFeature() must be called before adding content

我认为计时器应对错误负责。因为，当我在没有Timer的情况下调用requestFeature((时，应用程序运行时不会显示任何错误或崩溃。

有没有办法在同一布局中隐藏特定时间的状态和标题栏？(非故意(

Answer 1

Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
// Hiding Title bar of this activity screen //
getSupportActionBar().hide();
// Making this activity, full screen //
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
}
});
}
}, 1000, 5000);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);

改为将getWindow().requestFeature(Window.FEATURE_NO_TITLE);替换为getSupportActionBar().hide();。

Answer 2

使用以下代码

全屏幕

// Full Screen call using DecorView
private void setFullScreen() {
getWindow().addFlags(LayoutParams.FLAG_FULLSCREEN);
}

从全屏删除

private void removeFromFullScreen() {
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
}

现在在你的OnCreate()

@Override
protected void onCreate(Bundle savedInstanceState) {
final android.os.CountDownTimer Count = new android.os.CountDownTimer(5000, 1000) {
@Override
public void onTick(long millisUntilFinished) {
if (millisUntilFinished/1000 == 2) {
setFFullScreen();
}
Log.e("TAG",millisUntilFinished/1000+"");
}
@Override
public void onFinish() {
removeFromFullScreen();
}
};
Count.start();
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);