Fragments Implement OnClickListener

Question

I have this Fragments but i cant findviewbyid. i already look around website but get nothing. thankss

public class Course extends Fragment implements OnClickListener

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.course, container, false);
    View button1Button = findViewById(R.id.button_button1);
    button1Button.setOnClickListener(this);
    View button2Button = findViewById(R.id.button_button2);
    button2Button.setOnClickListener(this);
    View button3Button = findViewById(R.id.button_button3);
    button3Button.setOnClickListener(this);
    View button4Button = findViewById(R.id.button_button4);
    button4Button.setOnClickListener(this);
    View button5Button = findViewById(R.id.button_button5);
    button5Button.setOnClickListener(this);
    View button6Button = findViewById(R.id.button_button6);
    button6Button.setOnClickListener(this);
    View button7Button = findViewById(R.id.button_button7);
    button7Button.setOnClickListener(this);
    View button8Button = findViewById(R.id.button_button8);
    button8Button.setOnClickListener(this);
}

thankss

score 0 · Answer 1 · answered Oct 20 '16 at 05:20

0

Fragment does not have method findViewById(), instead use the layout you are inflating.

change

View button1Button = findViewById(R.id.button_button1);

to

View button1Button = view.findViewById(R.id.button_button1);

and all other assignments.

answered Oct 20 '16 at 05:20

Nayan Srivastava

3,655
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score 0 · Answer 2 · answered Oct 20 '16 at 05:20

0

Just do following change. It should work after that.

Button button8Button = view.findViewById(R.id.button_button8);

answered Oct 20 '16 at 05:20

Mayank Pandya

265
3
14

score 0 · Answer 3 · answered Oct 20 '16 at 05:21

0

Simple, you need to call findViewById on the inflated view:

View button1Button = view.findViewById(R.id.button_button1);

Don't forget to return your view variable at the end of the method.

answered Oct 20 '16 at 05:21

npace

4,218
1
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score 0 · Answer 4 · answered Oct 20 '16 at 05:21

It should be like this.

public class Course extends Fragment implements OnClickListener

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.course, container, false);
        View button1Button = view.findViewById(R.id.button_button1);
        button1Button.setOnClickListener(this);
        //Other buttons go here

        return view;
    }
}

score 0 · Answer 5 · answered Oct 20 '16 at 05:23

try to this hope this can help you..

 public class Course extends Fragment implements OnClickListener

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.course, container, false);
    Button button1Button = (Button) view.findViewById(R.id.button_button1);
    button1Button.setOnClickListener(this);
    Button button2Button = (Button) view.findViewById(R.id.button_button2);
    button2Button.setOnClickListener(this);
    Button button3Button = (Button) view.findViewById(R.id.button_button3);
    button3Button.setOnClickListener(this);
    Button button4Button = (Button) view.findViewById(R.id.button_button4);
    button4Button.setOnClickListener(this);
    Button button5Button = (Button) view.findViewById(R.id.button_button5);
    button5Button.setOnClickListener(this);
    Button button6Button = (Button) view.findViewById(R.id.button_button6);
    button6Button.setOnClickListener(this);
    Button button7Button = (Button) view.findViewById(R.id.button_button7);
    button7Button.setOnClickListener(this);
    Button button8Button = (Button) view.findViewById(R.id.button_button8);
    button8Button.setOnClickListener(this);
    return view;
}

score 0 · Answer 6 · answered Oct 20 '16 at 05:47

Add View in front of OnClickListener to View.OnClickListener.
Add view in front of findViewById to view.findViewById.

try this:

    public class Course extends Fragment implements View.OnClickListener{

     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.course, container, false);
        View button1 = view.findViewById(R.id.button_button1);
        button1.setOnClickListener(this);
     }
      ....
}

Fragments Implement OnClickListener

6 Answers6