Android FragmentDialog和界面，如何知道哪个按钮执行对话框

Question

我已经创建了一个DatePicker Dialog Fragment来使用我的Fragments。

我的片段中有两个按钮。每次点击按钮，我都会得到一个日期。

在片段的侦听器结果中，我需要知道点击了哪个按钮来执行操作，因为我有两个可以调用dialogFragment的按钮。

我怎么知道哪个按钮被点击在onCalendarDialogDateSelected结果事件?

在我的Fragment中，我这样做:

public class AgendaMedFragment extends Fragment implements CalendarDialogFragment.CalendarDialogListener {
    .....
    Button but_data_de= (Button) view.findViewById(R.id.but_data_agenda_de);
    but_data_de.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            final Calendar c = Calendar.getInstance();
            int year = c.get(Calendar.YEAR);
            int month = c.get(Calendar.MONTH);
            int day = c.get(Calendar.DAY_OF_MONTH);
            CalendarDialogFragment myDialogFragment = CalendarDialogFragment
                    .newInstance(year,month,day);
            myDialogFragment.setTargetFragment(AgendaMedFragment.this,0);
            myDialogFragment.show(getFragmentManager(), "myDialogFragment");
        }
    });
    Button but_data_para= (Button) view.findViewById(R.id.but_data_agenda_para);
    but_data_para.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            final Calendar c = Calendar.getInstance();
            int year = c.get(Calendar.YEAR);
            int month = c.get(Calendar.MONTH);
            int day = c.get(Calendar.DAY_OF_MONTH);
            CalendarDialogFragment myDialogFragment = CalendarDialogFragment
                    .newInstance(year,month,day);
            myDialogFragment.setTargetFragment(AgendaMedFragment.this,0);
            myDialogFragment.show(getFragmentManager(), "myDialogFragment");
        }
    });
    @Override
    public void onCalendarDialogDateSelected(int year, int month, int day) {
        //Here I need to know what button was clicked to execute an action, since I have two buttons that can call the dialogFragment
    }
}

和我的dialogFragment是:

public class CalendarDialogFragment extends DialogFragment  implements DatePickerDialog.OnDateSetListener {
    public interface CalendarDialogListener {
        void onCalendarDialogDateSelected(int year, int month, int day);
    }
    // Usa essa instância da interface para entregar eventos de ação
    CalendarDialogListener mListener;
    static CalendarDialogFragment newInstance(int year, int month, int day) {
        CalendarDialogFragment dialog = new CalendarDialogFragment();
        Bundle args = new Bundle();
        args.putInt("year", year);
        args.putInt("month", month);
        args.putInt("day", day);
        dialog.setArguments(args);
        return dialog;
    }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        try {
            mListener = (CalendarDialogListener) getTargetFragment();
        } catch (ClassCastException e) {
            throw new ClassCastException("Calling Fragment must implement CalendarDialogListener");
        }
    }
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        int year = getArguments().getInt("year");
        int month = getArguments().getInt("month");
        int day= getArguments().getInt("day");
        // Create a new instance of DatePickerDialog and return it
        Dialog myDialog = new DatePickerDialog(getActivity(), this, year, month, day);
        return myDialog;
    }
    public void onDateSet(DatePicker view, int year, int month, int day) {
        mListener.onCalendarDialogDateSelected(year, month, day);
    }
}

Answer 1

你可以再发送一个参数给DialogFragment的构造函数，它对应于被点击的按钮。

的例子:如果是button1，将其作为另一个参数发送给dialogFragment构造函数，并在代码中使用它。