android开发隐藏了actionbar仍然短暂闪现的解决方法

有时候我们在代码里隐藏了actionbar，在打开应用时，仍然短暂闪现下actionbar，用户体验很不好。

 

最简单的方法是 在AndroidManifest.xml中设置主题中配置不显示title或者action，即为：

 

  <style name="NoTitle" parent="android:Theme.Holo.Light">

    <item name="android:windowActionBar">true</item>

    </style>

 

或者

 

 <style name="NoTitle" parent="android:Theme.Holo.Light">

        <item name="android:windowNoTitle">true</item>

    </style>

 

但是有时候，你如果想显示actionbar，就不能在AndroidManifest.xml这么设置，我试过，做上述设置，就不能显示出actionbar了（这个我试的结果是这样，有可以显示的请给我回复），

 

这时，怎么解决这个问题呢，在stackoverflow看到有解决方案，这里贴出来：

 

Setting android:windowActionBar=false truly disables the ActionBar but then, as you say, getActionBar() returns null. This is solved by:

 

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    getWindow().requestFeature(Window.FEATURE_ACTION_BAR);

    getActionBar().hide();

 

    setContentView(R.layout.splash); // be sure you call this AFTER requestFeature

 

But now there is another problem. After putting windowActionBar=false in the theme, the Activity draws its normal Window Title instead of an ActionBar.

If we try to avoid this by using some of the *.NoTitleBar stock themes or we try to put true in our own theme, it won't work.

The reason is that the ActionBar depends on the Window Title to display itself - that is the ActionBar is a transformed Window Title.

So the trick which can help us out is to add one more thing to our Activity theme xml:

 

 

<item name="android:windowActionBar">false</item>

<item name="android:windowTitleSize">0dp</item>

 

This will make the Window Title with zero height, thus practically invisible .

 

In your case, after you are done with displaying the splash screen you can simply call

 

setContentView(R.layout.main);

getActionBar().show()

and you are done. The Activity will start with no ActionBar flickering, nor Window Title showing