코틀린 프래그먼트에서 datepickerdialog 띄우기 질문

Question

viewpager, tablayout으로 프래그먼트 2개 연결하기까지는 성공했는데요.datepicker 띄우는 부분을 주석으로 처리하면 화면이 뜨는데 주석을 해제하면 앱이 실행되지 않고 꺼져버립니다.액티비티 말고 프래그먼트에서 datepickerdialog 띄우기를 구현하고 싶은데 어느 부분이 문제인지 알 수 있을까요?ㅠㅠ package kr.co.farmappproject import android.content.Intent import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.Button import androidx.navigation.NavController import kotlinx.android.synthetic.main.activity_main.* import kr.co.farmappproject.farmdiary.BookFragment import kr.co.farmappproject.farmdiary.DiaryFragment import kr.co.farmappproject.farmdiary.FragmentAdapter class MainActivity : AppCompatActivity(){ //private val fragmentManager = supportFragmentManager //private lateinit var transaction: FragmentTransaction lateinit var navController: NavController override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val adapter = FragmentAdapter(supportFragmentManager) adapter.addFragment(DiaryFragment(), "영농일지") adapter.addFragment(BookFragment(), "장부") viewpager.adapter = adapter tab_layout.setupWithViewPager(viewpager) } } package kr.co.farmappproject.farmdiary import androidx.fragment.app.Fragment import androidx.fragment.app.FragmentActivity import androidx.fragment.app.FragmentManager import androidx.fragment.app.FragmentPagerAdapter import androidx.viewpager2.adapter.FragmentStateAdapter class FragmentAdapter(manager: FragmentManager) : FragmentPagerAdapter(manager) { private var fragmentList = ArrayList() //프래그먼트를 담기 위한 ArrayList private val titleList = ArrayList() //제목을 담기 위한 ArrayList override fun getItem(position: Int): Fragment = fragmentList[position] override fun getCount(): Int = titleList.size override fun getPageTitle(position: Int): CharSequence? = titleList[position] //프래그먼트와 문자열이 넘어오면 그것들을 각각 ArrayList에 집어 넣어서 탭 레이아웃에서 보여지도록 함. fun addFragment(fragment: Fragment, title:String){ fragmentList.add(fragment) titleList.add(title) } } package kr.co.farmappproject.farmdiary import android.app.Activity import android.app.DatePickerDialog import android.app.Dialog import android.os.Bundle import android.widget.DatePicker import androidx.fragment.app.DialogFragment import androidx.fragment.app.setFragmentResult import java.text.SimpleDateFormat import java.util.* class DatePickerFragment : DialogFragment(), DatePickerDialog.OnDateSetListener { private val cal = Calendar.getInstance() override fun onCreateDialog(savedInstanceState: Bundle?): Dialog { val year = cal.get(Calendar.YEAR) val month = cal.get(Calendar.MONTH) val day = cal.get(Calendar.DAY_OF_MONTH) return DatePickerDialog(requireActivity(), this, year, month, day) } override fun onDateSet(p0: DatePicker?, year: Int, month: Int, dayOfMonth: Int) { cal.set(Calendar.YEAR, year) cal.set(Calendar.MONTH, month) cal.set(Calendar.DAY_OF_MONTH, dayOfMonth) val selectedDate = SimpleDateFormat("yyyy-MM-dd", Locale.KOREA).format(cal.time) val selectedDateBundle = Bundle() selectedDateBundle.putString("SELECTED_DATE", selectedDate) setFragmentResult("REQUEST_KEY", selectedDateBundle) } } package kr.co.farmappproject.farmdiary import android.os.Build import android.os.Bundle import androidx.fragment.app.Fragment import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import androidx.annotation.RequiresApi import kotlinx.android.synthetic.main.fragment_diary.* import kr.co.farmappproject.R import kr.co.farmappproject.databinding.ActivityMainBinding class BookFragment : Fragment(R.layout.fragment_book) { private var _binding: ActivityMainBinding? = null private val binding get() = _binding!! override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) } override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { // Inflate the layout for this fragment return inflater.inflate(R.layout.fragment_book, container, false) } /*override fun onViewCreated(view: View, savedInstanceState: Bundle?) { super.onViewCreated(view, savedInstanceState) _binding = ActivityMainBinding.bind(view) binding.apply { dateSelect.setOnClickListener{ //DatePickerFragment 새로운 객체 생성 val datePickerFragment = DatePickerFragment() val supportFragmentManager = requireActivity().supportFragmentManager supportFragmentManager.setFragmentResultListener( "REQUEST_KEY", viewLifecycleOwner ){ resultKey, bundle->if(resultKey == "REQUEST_KEY"){ val date = bundle.getString("SELECTED_DATE") dateInput.text = date } } //show datePickerFragment.show(supportFragmentManager, "DatePickerFragment") //날짜 출력 텍스트뷰에 오늘 날짜 설정 *//* val cal = Calendar.getInstance() var year = cal.get(Calendar.YEAR) var month = cal.get(Calendar.MONTH) var day = cal.get(Calendar.DAY_OF_MONTH) var listener = DatePickerDialog.OnDateSetListener{ datePicker, i, i2, i3 -> //i년 i2월 i3일 dateInput.text = "${i}년 ${i2+1}월 ${i3}일" } var picker = DatePickerDialog(context, listener, year, month, day) picker.show()*//* } } } override fun onDestroyView() { super.onDestroyView() _binding = null }*/ } package kr.co.farmappproject.farmdiary import android.app.DatePickerDialog import android.content.Context import android.os.Build import android.os.Bundle import androidx.fragment.app.Fragment import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import android.widget.TextView import androidx.annotation.RequiresApi import androidx.fragment.app.DialogFragment import kotlinx.android.synthetic.main.fragment_diary.* import kr.co.farmappproject.R import java.util.* class DiaryFragment : Fragment() { //private var _binding: ActivityMainBinding? = null //private val binding get() = _binding!! override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) } override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { return inflater.inflate(R.layout.fragment_diary, container, false) } } /*@RequiresApi(Build.VERSION_CODES.N) override fun onViewCreated(view: View, savedInstanceState: Bundle?) { super.onViewCreated(view, savedInstanceState) _binding = ActivityMainBinding.bind(view) binding.apply { dateSelect.setOnClickListener(){ //DatePickerFragment 새로운 객체 생성 val datePickerFragment = DatePickerFragment() val supportFragmentManager = requireActivity().supportFragmentManager supportFragmentManager.setFragmentResultListener( "REQUEST_KEY", viewLifecycleOwner ){ resultKey, bundle->if(resultKey == "REQUEST_KEY"){ val date = bundle.getString("SELECTED_DATE") dateInput.text = date } } //날짜 출력 텍스트뷰에 오늘 날짜 설정 val cal = Calendar.getInstance()return super.onCreateView(inflater, container, savedInstanceState) var year = cal.get(Calendar.YEAR) var month = cal.get(Calendar.MONTH) var day = cal.get(Calendar.DAY_OF_MONTH) var listener = DatePickerDialog.OnDateSetListener{ datePicker, i, i2, i3 -> //i년 i2월 i3일 dateInput.text = "${i}년 ${i2+1}월 ${i3}일" } var picker = DatePickerDialog(context, listener, year, month, day) picker.show()*//* } } moveBack.setOnClickListener{ }*/

GAN · Answer

1. 에러 발생 시 에러로그 같이 올려주세요.2. DiaryFragment 와 BookFragment 에서 왜 ActivityMainBinding 을 사용하시나요? - 각각 FragmentDiaryBinding, FragmentBookBinding 사용하셔야 됩니다. - ViewBinding 혹은 DataBinding 사용법 다시 확인 해보세요. 3. kotlin synthetic plugin 은 deprecated 되었습니다.

아카 · Answer

1. 에러는 따로 발생하지 않았고 앱이 꺼져버립니다.2. 그 부분은 이것저것 건드리다가 저렇게 바꾼 것인데 원래대로 해도 작동은 하지 않습니다ㅠㅠ바인딩말고 간단하게 fragment 내에서 datepickerdialog를 띄우는 법이 혹시 있을까요?ㅠ제가 아예 생초보라서요..조언 주시면 정말 감사하겠습니다.

큐트페르소나 · Answer

1. Run 탭에서 로그가 있을텐데요. 아니면 Log.d를 찍어보시던가요. 문제점은 반드시 나옵니다.2. GAN님 말씀대로, Viewbinding 사용법 보시고 해당 fragment에 해당하는 Binding을 사용하셔야죠. (FragmentDiaryBinding, FragmentBookBinding)

코틀린 프래그먼트에서 datepickerdialog 띄우기 질문

3개의 답변

#fragment 목록