I'm trying to create a custom dialog where it will show a toast when the user click on the positive button, but I got an error on the Toast line. What is the problem and how to resolve it? I think it has something to do with the context. The error just says: Cannot resolve method 'makeText(com.example.studentsacademicmanagementappsama.SubjectListDialog, java.lang.String, int)'

SubjectListDialog.java

public class SubjectListDialog extends AppCompatDialogFragment {
    private EditText et_subjectCode, et_subjectName, et_creditHour;
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

        LayoutInflater inflater = getActivity().getLayoutInflater();
        View view = inflater.inflate(R.layout.layout_subjectlist_dialog, null);

        builder.setView(view)
                .setTitle("Add Subject")
                .setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {

                    }
                })
                .setPositiveButton("confirm", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        try {
                            SubjectListModel subjectListModel = new SubjectListModel(et_subjectCode.
                                    getText().toString(),et_subjectName.getText().toString(),
                                    Integer.parseInt(et_creditHour.getText().toString()));

                            Toast.makeText(SubjectListDialog.this, subjectListModel.toString(),
                                    Toast.LENGTH_SHORT).show();
                        }catch (Exception e){

                        }
                    }
                });
        et_subjectCode = view.findViewById(R.id.et_subjectCode);
        et_subjectName = view.findViewById(R.id.et_subjectName);
        et_creditHour = view.findViewById(R.id.et_creditHour);
        return builder.create();
    }
}

CodePudding user response：

The value to pass is the context.

You are passing the wrong value, if you pass 'SubjectListDialog.this' you are passing the SubjectListDialog class itself, not the context.

Toast.makeText(requireContext(), subjectListModel.toString(),Toast.LENGTH_SHORT).show();

CodePudding user response：

Toast.makeText(view.getContext(), subjectListModel.toString(), Toast.LENGTH_SHORT).show();