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javaandroidfragmentfindviewbyid

"cannot resolve findviewbyid in fragment" error

I'm trying to move Floating Action Button into my Fragment. But I'm getting an error about findViewById. It's "Cannot resolve method 'findViewById'

I researched, i found so many things but i'm not good at this. Can anyone explain me how can i solve this error? I tried "Invalidate Caches/Restart" and "Clean and Rebuild Project", but it didn't work.

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //Floating Action Button
    fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // intent
        }
    });

}
Solution

  • findviewById() do not belongs to Fragment class, but Activity.

    You said you're inside a Fragment and want to access some view in the Activity, you must use getActivity().findViewById(R.id.fab).