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Accepted
W1ll
Asked: 2020-06-01 16:32:26 +0800 CST 2020-06-01 16:32:26 +0800 CST

Why does setOnClickListener not work in Fragment Android SDK

  • 772

In my code I need to implement a setOnClickListenerbut inside a Fragmentbut when I try to do it I get an error The setOnClickListener symbol cannot be resolved , could someone tell me how to correct this?

Here is my code:

public class TerminalFragment extends Fragment implements ServiceConnection, SerialListener {
.
.   
mHexBtn.setOnClickListener(new View.OnClickListener(){
    public void onClick(View v) {
    .
    .
    }
});
android

1 Answers

  1. Best Answer

    The correct way to assign the listener according to your code is, within the method onCreateView()you must inflate the view that contains the button, assign the listener and later, very importantly, return the view that you initially inflated.

    @Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{ 
    View view = inflater.inflate(R.layout.myfragment, container, false);


    mHexBtn = (Button) view.findViewById(R.id.mybutton);


    mHexBtn.setOnClickListener(new OnClickListener()
    {
        @Override
        public void onClick(View view)
        {
            ...
            ...

        }
    });

    return view;
}

    The main problem showing the error :

    Cannot Resolve Symbol 'setOnClickListener'

    It is because the listener is not being initialized within onCreate()or in this case onCreateView()since you are using aFragment

    • 1