Android请求窗口功能

Question

在我的单个 Activity 屏幕上的应用程序中，我想请求以下两个窗口功能:

requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 
        requestWindowFeature(Window.FEATURE_LEFT_ICON); 

一次添加一个时两者都在工作，但是当我将它们两个加在一起时它们都不起作用。

请建议我们如何在android中做到这一点？

编辑
我的 Activity 代码

@Override
    public void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        Log.v("TAG", "After super.onCreate()");
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 
        Log.v("TAG", "after Window.FEATURE_INDETERMINATE_PROGRESS");
        requestWindowFeature(Window.FEATURE_LEFT_ICON);
        Log.v("TAG", "after Window.FEATURE_LEFT_ICON");
        setContentView(R.layout.categotylist);
        Log.v("TAG", "after setContentView");
        lists = new ArrayList<String>();
\\some more code
}

日志猫

06-02 13:02:37.813: D/Prototype(421): ViewPagerActivityActivity : LOADING CATEGORY
06-02 13:02:38.092: D/dalvikvm(421): GC_FOR_MALLOC freed 7300 objects / 470264 bytes in 59ms
06-02 13:02:38.112: I/global(421): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required.
06-02 13:02:38.982: V/TAG(421): After super.onCreate()
06-02 13:02:38.982: V/TAG(421): after Window.FEATURE_INDETERMINATE_PROGRESS
06-02 13:02:38.992: V/TAG(421): after Window.FEATURE_LEFT_ICON
06-02 13:02:39.172: V/TAG(421): after setContentView

Answer 1

你试着让你的requestWindowFeature() call before you call setContentView()?
看到这个Android Developer site