在我的申请，我已经申请按照我的清单文件的主题：

In my application, I have applied following theme in my manifest file:

android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

和它工作正常。结果但是，当我打电话有人从我的应用程序为每个应用程序的要求，并在通话结束后，我的应用程序再回来，标题栏会出现在应用程序一次。我没有得到这有什么问题。请帮助我。

and it is working fine. But when I call someone from my app as per application requirement, and come back again in my application after call end, title bar appears in app again. I am not getting that what is the problem. Please help me out.

我不想要一个标题栏在我的应用程序都没有。

I don't want a title bar in my application at all.

在此先感谢

推荐答案

这看起来像一个著名的问题：

This looks like a known issue:

听起来像下面会解决它：

Sounds like the following will fix it:

getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, 
WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);