findViewById within fragment

问题

Is there any way to find a view by id within the scope of a fragment? I'm using a series of fragments to render a specialized list. The fragments are loaded from a layout, so their widgets all have the same ids.

I suppose I can figure out a way to give each widget a custom id during (or right after) creation. However, it would be a lot nicer if I could somehow limit the findViewById to the scope of the fragment.

回答1:

private View myFragmentView;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) 
{
    myFragmentView = inflater.inflate(R.layout.myLayoutId, container, false);
    myView = myFragmentView.findViewById(R.id.myIdTag)

    return myFragmentView;
}

回答2:

From inside the Fragment:

getView().findViewById(R.id.your_view);

From the enclosing Activity:

getFragmentManager().findFragmentByTag("YourFragmentTag").getView().findViewById(R.id.your_view);

or

getFragmentManager().findFragmentById(R.id.your_fragment).getView().findViewById(R.id.your_view);

回答3:

You can do it by getView().findViewById()

回答4:

Yes, there is a way, you can find it through rootView. First find the rootView of your fragment rootView=getView(); and then use rootView.findViewById(...);

回答5:

  public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootview=null;

             rootview=inflater.inflate(R.layout.fragment_web_view, container, false);
           ListView lv = (ListView)rootview.findViewById(android.R.id.list);

return rootview;
        // Inflate the layout for this fragment
        //return inflater.inflate(R.layout.fragment_web_view, container, false);
    }

来源：https://stackoverflow.com/questions/12536125/findviewbyid-within-fragment