java - 更改 fragment 更改主题

Question

我需要动态更改 fragment 主题，我尝试了这段代码，但它不适用于 onCreate 或 onCreateView()

getActivity().setTheme(R.style.ActionMode);

如何从 fragment 设置主题？

Answer 1

在 onCreateView() 方法中，您必须创建 ContextThemeWrapper 并从中扩充主题样式，如下所示:

@Override
public View onCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
    //create ContextThemeWrapper from the original Activity Context with the custom theme
    Context context = new ContextThemeWrapper(getActivity(), R.style.your_Custom_Theme);
    //clone the inflater using the ContextThemeWrapper
    LayoutInflater localInflater = inflater.cloneInContext(context);
    //inflate using the cloned inflater, not the passed in default
    return localInflater.inflate(R.layout.your_layout, container, false);
}