错误：＆QUOT; requestFeature（）必须添加内容和QUOT之前被调用;，虽然它的setContentView之前称为（） [英] Error: "requestFeature() must be called before adding content", although it is called before setContentView()

问题描述

我有一个活动，它使用了ActionBarSherlock。现在，我想在动作条显示一个不确定的进度，并遵循从ActionBarSherlock的例子：

I have an Activity which uses the ActionBarSherlock. Now I wanted to show an Indeterminate Progress in that actionbar and followed the example from ActionBarSherlock:

public class MainMenu extends SimpleWebActivity implements BackgroundBrowserReciever {
    private Boolean windowFeatureCalled;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        super.onCreate(savedInstanceState);

        this.windowFeatureCalled = true;
        setContentView(R.layout.main_menu);
                ....
    }

的SimpleWebActivity是延伸一个SherlockActivity的抽象类。

The SimpleWebActivity is an abstract class which extends a SherlockActivity.

但是，当我尝试加载的活动，我得到以下错误：

But when I try to load that Activity, I get the following error:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dalthed.tucan/com.dalthed.tucan.ui.MainMenu}: android.util.AndroidRuntimeException: requestFeature() must be called before adding content

为什么这个错误发生，甚至当我要求WindowFeature调用的setContentView之前？

Why does this error occur, even when i request that WindowFeature before calling setContentView?

推荐答案

您Super.onCreate后移动它，这应该解决您的问题。

Move it after your Super.onCreate, that should resolve your issue.

     @Override
        public void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

//HERE
 requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);

            setContentView(R.layout.main_menu);
  this.windowFeatureCalled = true;
                    ....
        }

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