getView()和getActivity()有什么区别? [英] What is the difference between getView() and getActivity()?

问题描述

getView()和getActivity()有什么区别?

我已经使用了这两种方法，但是即使使用方法在android中也是一样，我也不了解基本区别:

I have used both methods but don't understand the basic difference even methodology of usage are also same in android:

ListView deliverItemList = (ListView) getView().findViewById(R.id.load_item_list);
ListView deliverItemList = (ListView) getActivity().findViewById(R.id.load_item_list);

我假设getView()可能会产生NullPointerException，并与我分享您的知识，并且推荐哪种方法?

I have assumed that getView() may produce NullPointerException, share your knowledge with me and which method is recommended?

推荐答案

getActivity()返回托管Fragment的Activity，而getView()返回您放大的视图并返回 onCreateView.后者仅在onCreateView返回

getActivity() returns the Activity hosting the Fragment, while getView() returns the view you inflated and returned by onCreateView. The latter returns a value != null only after onCreateView returns

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