Android button.setOnClickListener

Question

I am making an app for studies with tabbedActivity plus the button is not taking the action, someone knows to explain the reason, I have tried several forms but all are without action, does not give error and breaks the app but the button nothing

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        rooView = inflater.inflate(R.layout.fragment_teste, container, false);
        final Context context = getContext();
        button = (Button) rooView.findViewById(R.id.button);
        button.setOnClickListener((View.OnClickListener) this);
        return rooView;
    } 

@Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.button:
                Toast.makeText(getContext(), "Teste", Toast.LENGTH_LONG).show();
                break;
        }
    }

yes i implements. `public class Cadastro extends Fragment implements View.OnClickListener` — Erikson William, Jun 21 '17 at 01:27

Android Mediocre · Answer 1 · 2017-06-21T02:21:40.320

1

    Button button;
    View rootView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        rooView = inflater.inflate(R.layout.fragment_teste, container, false);
        button = (Button) rooView.findViewById(R.id.btConfirm);
        button.setOnClickListener(this);
        return rooView;
    } 

@Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btConfirm:
                Toast.makeText(getActivity(), "Teste", Toast.LENGTH_LONG).show();
                break;
        }
    }

edited Jun 21 '17 at 02:21

answered Jun 21 '17 at 01:27

Android Mediocre

310
3
14

I made the change, even so it continues without action – Erikson William Jun 21 '17 at 01:36
it continues what action? i think you dont need the final Context context = getContext(); And is your button id in xml named button only? – Android Mediocre Jun 21 '17 at 01:40
I made some changes but continued without action on the button. xml button`` – Erikson William Jun 21 '17 at 01:45
can you post your fragment xml? if you don't mind. So the button is not Toasting your toast? – Android Mediocre Jun 21 '17 at 01:46
there you are your id is different to your button. Do this button = (Button) rootView.findViewById(R.id.btConfirm); – Android Mediocre Jun 21 '17 at 01:49
isso mesmo java `@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment rootView = inflater.inflate(R.layout.fragment_cadastro, container, false); btConfirm = (Button) rootView.findViewById(R.id.btConfirm); btConfirm.setOnClickListener(this); return rootView; }` – Erikson William Jun 21 '17 at 01:49
`@Override public void onClick(View view) { switch (view.getId()) { case R.id.btConfirm: Toast.makeText(getContext(), "Teste", Toast.LENGTH_LONG).show(); break; } }` – Erikson William Jun 21 '17 at 01:50
No, the button is not Toasting – Erikson William Jun 21 '17 at 01:59
instead of getContext in your Toast, change it to getActivity(). Is't ok now? – Android Mediocre Jun 21 '17 at 02:02
Does not display an error. Does not display the toast. I already tried to debug but it does not reach the stretch of toast – Erikson William Jun 21 '17 at 02:17
yes `Toast.makeText(getActivity(), "Teste", Toast.LENGTH_LONG).show();` – Erikson William Jun 21 '17 at 02:23
the button above? did you change your R.id.button to R.id.btConfirm? – Android Mediocre Jun 21 '17 at 02:27
his, the button name is now btConfirm – Erikson William Jun 21 '17 at 02:32
button is your Button variable, you need to cast it to your id. Is this your button code? button = (Button) rooView.findViewById(R.id.btConfirm); – Android Mediocre Jun 21 '17 at 02:34
`btConfirm = (Button) rootView.findViewById(R.id.btConfirm);` – Erikson William Jun 21 '17 at 02:36
use this code button = (Button) rootView.findViewById(R.id.btConfirm); – Android Mediocre Jun 21 '17 at 03:02
Button button is declared before the View. Look at the code above. I already edit it – Android Mediocre Jun 21 '17 at 03:03
Nothing again, I do not know what else to do – Erikson William Jun 21 '17 at 03:23

Android button.setOnClickListener

1 Answers1