如何自定义onCreateView片段中的android标题栏

概述我正在尝试通过典型方法更改标题栏的视图：@OverridepublicViewonCreateView(LayoutInflaterinflater,ViewGroupgroup,Bundleargs){...Windowwindow=getActivity().getWindow();window.requestFeature(Window.FEATURE_CUSTOM_TITLE);window.setFea

我正在尝试通过典型方法更改标题栏的视图：

@OverrIDepublic VIEw onCreateVIEw(LayoutInflater inflater, VIEwGroup group, Bundle args) {    ...    Window window = getActivity().getwindow();    window.requestFeature(Window.FEATURE_CUSTOM_Title);    window.setFeatureInt(Window.FEATURE_CUSTOM_Title, R.layout.brand_update_layout);    Progressbar progressbar = (Progressbar) inflater.inflate(R.layout.brand_update_layout, group, false)            .findVIEwByID(R.ID.Title_progress);    TextVIEw Title_Text = (TextVIEw) inflater.inflate(R.layout.brand_update_layout, group, false)            .findVIEwByID(R.ID.Title_text);    Title_Text.setText(HTML.fromHTML("..."));    progressbar.setVisibility(VIEw.VISIBLE);    ...}

但是此代码由于某些原因无法正常工作.怎么了？

UPD.
好,我宣布

    Window window = getwindow();    window.requestFeature(Window.FEATURE_CUSTOM_Title);    window.setFeatureInt(Window.FEATURE_CUSTOM_Title, R.layout.brand_update_layout); 

在活动和

    Progressbar progressbar = (Progressbar)getActivity().getwindow().findVIEwByID(R.ID.Title_progress);    TextVIEw Title_Text = (TextVIEw)getActivity().getwindow().findVIEwByID(R.ID.Title_text);    Title_Text.setText(...);    progressbar.setVisibility(VIEw.VISIBLE);

片段,但是我有一个错误：

    ERROR/AndroIDRuntime(12213): java.lang.NullPointerException    at com.quto.ru.CarListFragment.onCreateVIEw(CarListFragment.java:188)    at androID.support.v4.app.FragmentManagerImpl.movetoState(FragmentManager.java:837)    at androID.support.v4.app.FragmentManagerImpl.movetoState(FragmentManager.java:1041)    at androID.support.v4.app.BackStackRecord.run(BackStackRecord.java:616)    at androID.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1359)

在字符串Title_Text.setText(…);

解决方法:

您正在膨胀一个全新的视图,并尝试通过使用以下代码在该新膨胀的视图中找到progressbar / textvIEw：

Progressbar progressbar = (Progressbar) inflater.inflate(R.layout.brand_update_layout, group, false).findVIEwByID(R.ID.Title_progress);TextVIEw Title_Text = (TextVIEw) inflater.inflate(R.layout.brand_update_layout, group, false).findVIEwByID(R.ID.Title_text);

尝试将其更改为此

Progressbar progressbar = (Progressbar)window.findVIEwByID(R.ID.Title_progress);TextVIEw Title_Text = (TextVIEw)window.findVIEwByID(R.ID.Title_text);

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