Simple Timepicker For A Fragment Activity

I am trying to launch a timepicker from a edittext in a fragment Buffet_offerings_breakfast_menu2.java public class Buffet_offerings_breakfast_menu2 extends Fragment implements Pic

Solution 1:

All Fragment-to-Fragment communication is done through the associated Activity. Two Fragments should never communicate directly.

http://developer.android.com/training/basics/fragments/communicating.html

You can interface as a call back to the activity. So get the time in activity and then communicate to fragment.

Example:

For the example sake i am extending Activity. You can extend FragmentAcitivty ans use support library and make proper imports.

publicclassMainActivityextendsActivityimplementsPickTime{

        EditFragment newFragment; 
        @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            newFragment = newEditFragment();
            FragmentManager fragmentManager = getFragmentManager();
            FragmentTransaction transaction = fragmentManager.beginTransaction();
            transaction.replace(R.id.container, newFragment);
            //transaction.addToBackStack(null);
            transaction.commit();
        }

        @OverridepublicbooleanonCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);
            returntrue;
        }

        @OverridepublicvoidreturnTime(String value) {
            // TODO Auto-generated method stubif(newFragment.isVisible())
            {
                newFragment.setEdittextvalue(value);
            }

        }

    }

Fragment with just a Edittext

publicclassEditFragmentextendsFragment {

    EditText ed;
    @OverridepublicViewonCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragmentlayout,container,false);

        return v;
    }
    @OverridepublicvoidonActivityCreated(Bundle savedInstanceState) {
        // TODO Auto-generated method stubsuper.onActivityCreated(savedInstanceState);
        ed = (EditText) getView().findViewById(R.id.editText1);
        ed.setOnClickListener(newOnClickListener()
        {

            @OverridepublicvoidonClick(View v) {
                // TODO Auto-generated method stubTimePickerFragment newFragment = newTimePickerFragment();
              newFragment.show(getFragmentManager(), "timePicker");
            }

        });
    }
    publicvoidsetEdittextvalue(String value) {
        // TODO Auto-generated method stub
        ed.setText(value);

    }
}

TimerPickerFragment

publicclassTimePickerFragmentextendsDialogFragmentimplementsTimePickerDialog.OnTimeSetListener {


    @OverridepublicvoidonAttach(Activity activity) {
        // TODO Auto-generated method stubsuper.onAttach(activity);
        mCallback = (PickTime) activity;
    }

    publicinterfacePickTime
    {
        publicvoidreturnTime(String value);

    }

    PickTime mCallback;
    @Overridepublic Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current time as the default values for the pickerfinalCalendarc= Calendar.getInstance();
        inthour= c.get(Calendar.HOUR_OF_DAY);
        intminute= c.get(Calendar.MINUTE);

        // Create a new instance of TimePickerDialog and return itreturnnewTimePickerDialog(getActivity(), this, hour, minute,
                DateFormat.is24HourFormat(getActivity()));
    }

    publicvoidonTimeSet(TimePicker view, int hourOfDay, int minute) {
        // Do something with the time chosen by the userif(mCallback!=null)
        {
            StringBuildersb=newStringBuilder();
            sb.append(hourOfDay);
            sb.append(":");
            sb.append(minute);
            mCallback.returnTime(sb.toString());
        }
    }
}

Solution 2:

initialize mCallback in Buffet_offerings_breakfast_menu2 like this

@OverridepublicvoidonAttach(Activity activity) {
    // TODO Auto-generated method stubsuper.onAttach(activity);
    mCallback = (PickTime) activity;
}