CalendarView在最初将签证设置为GONE时不显示

Question

更新：如我在回答中所述，我在修复代码后添加了整个代码

大家好，我有一个奇怪的错误。我有一个日历视图，最初将其设置为“消失”，当用户单击图标时，我尝试将其更改为“可见”和“消失”。它不显示。

但是，当我最初将其设置为VISIBLE时，它可以按预期工作。

我尝试调试，它进入了when语句的两个分支，但它不会改变可见性知道我在这里做错了吗？

calendar_icon.setOnClickListener {
            when (calendarView.visibility) {
                View.GONE -> {
                    calendarView.visibility = View.VISIBLE
                }
                else -> { calendarView.visibility = View.GONE

                }
            }
        }

XML代码

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/per_day_root"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/brighter_white">

    <androidx.cardview.widget.CardView
        android:id="@+id/cardView2"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        app:cardBackgroundColor="@color/brighter_white"
        app:cardCornerRadius="12dp"
        app:cardElevation="12dp"
        app:contentPadding="4dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <EditText
                android:id="@+id/per_day_search"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:layout_marginBottom="8dp"
                android:layout_weight="4"
                android:background="@android:color/transparent"
                android:hint="@string/search"
                android:textColorHint="@color/silver"
                android:textSize="14sp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toStartOf="@+id/imageView11"
                app:layout_constraintHorizontal_bias="1.0"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintVertical_bias="0.6" />

            <ImageView
                android:id="@+id/imageView11"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="8dp"
                android:layout_weight="1"
                android:background="@drawable/rounded_corner_azure_bg"
                android:padding="8dp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:srcCompat="@drawable/ic_search_line" />

        </androidx.constraintlayout.widget.ConstraintLayout>
    </androidx.cardview.widget.CardView>

    <LinearLayout
        android:id="@+id/linearLayout"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginEnd="16dp"
        android:background="@drawable/rounded_corner_lavendar_bg"
        android:padding="8dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/calendarView"
        app:layout_goneMarginTop="16dp">

        <TextView
            android:id="@+id/per_day_current_date"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="8dp"
            android:layout_marginRight="8dp"
            android:layout_weight="4"
            android:fontFamily="@font/montserrat_medium"
            android:text="TextView"
            android:textColor="@color/charcoal"
            android:textSize="15sp" />

        <ImageView
            android:id="@+id/calendar_icon"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            app:srcCompat="@drawable/ic_calendar" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/linearLayout5"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:orientation="horizontal"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/linearLayout">

        <TextView
            android:id="@+id/report_item_name"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginRight="16dp"
            android:layout_weight="1"
            android:background="@color/periwinkle"
            android:fontFamily="@font/montserrat_medium"
            android:gravity="center"
            android:paddingStart="8dp"
            android:paddingLeft="8dp"
            android:paddingTop="16dp"
            android:paddingEnd="8dp"
            android:paddingRight="8dp"
            android:paddingBottom="16dp"
            android:text="@string/user_name"
            android:textColor="@color/charcoal"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/report_item_attend"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginRight="16dp"
            android:layout_weight="1"
            android:background="@color/platinum"
            android:fontFamily="@font/montserrat_medium"
            android:gravity="center"
            android:maxLines="2"
            android:paddingStart="8dp"
            android:paddingLeft="8dp"
            android:paddingTop="16dp"
            android:paddingEnd="8dp"
            android:paddingRight="8dp"
            android:paddingBottom="16dp"
            android:text="@string/attend_time"
            android:textColor="@color/charcoal"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/report_item_leave"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginRight="16dp"
            android:layout_weight="1"
            android:background="@color/misty_rose"
            android:fontFamily="@font/montserrat_medium"
            android:gravity="center"
            android:maxLines="2"
            android:paddingStart="8dp"
            android:paddingLeft="8dp"
            android:paddingTop="16dp"
            android:paddingEnd="8dp"
            android:paddingRight="8dp"
            android:paddingBottom="16dp"
            android:text="@string/leave_time"
            android:textColor="@color/charcoal"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/report_item_lost_points"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginRight="16dp"
            android:layout_weight="1"
            android:background="@color/magnolia"
            android:ellipsize="end"
            android:fontFamily="@font/montserrat_medium"
            android:gravity="center"
            android:maxLines="2"
            android:paddingStart="8dp"
            android:paddingLeft="8dp"
            android:paddingTop="16dp"
            android:paddingEnd="8dp"
            android:paddingRight="8dp"
            android:paddingBottom="16dp"
            android:text="@string/lostPoints"
            android:textColor="@color/charcoal"
            android:textStyle="bold" />

    </LinearLayout>

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/report_rv"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginTop="8dp"
        android:layout_marginBottom="16dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/linearLayout5" />

    <CalendarView
        android:id="@+id/calendarView"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:visibility="visible"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/cardView2"
        tools:visibility="visible" />

</androidx.constraintlayout.widget.ConstraintLayout>

片段代码

package iti.intake40.mawgood_admin.reports.per_day

import android.app.DatePickerDialog
import android.os.Build
import android.os.Bundle
import android.text.Editable
import android.text.TextWatcher
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.TextView
import androidx.annotation.RequiresApi
import androidx.fragment.app.Fragment
import androidx.recyclerview.widget.LinearLayoutManager
import com.google.android.material.snackbar.Snackbar
import iti.intake40.mawgood_admin.R
import iti.intake40.mawgood_admin.core.DateUtilities
import iti.intake40.mawgood_admin.models.Report
import kotlinx.android.synthetic.main.fragment_reports.*

class ReportsFragment : Fragment(), ReportPerDayContract.IView {

    private val TAG = ReportsFragment::class.java.simpleName
    private lateinit var presenter: ReportPerDayPresenter
    private lateinit var adapter: ReportPerDayAdapter
    private val reportList = ArrayList<Report>()
    private var rootView: View? = null
    private var mDatePickerDialog: DatePickerDialog? = null
    private var per_day_current_date: TextView? = null

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {

        val root = inflater.inflate(R.layout.fragment_reports, container, false)
        per_day_current_date = root.findViewById(R.id.per_day_current_date)
        presenter = ReportPerDayPresenter(context!!, this)
        return root
    }

    @RequiresApi(Build.VERSION_CODES.O)
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        rootView = view.findViewById(R.id.per_day_root)

        presenter.getOrganizationCreationDate()
        calendarView.maxDate = System.currentTimeMillis()
        calendarView.visibility = View.GONE
        calendar_icon.setOnClickListener {
            when (calendarView.visibility) {
                View.GONE -> {
                    calendarView.visibility = View.VISIBLE
                }
                View.VISIBLE -> {
                    calendarView.visibility = View.GONE

                }
            }
        }

        calendarView.setOnDateChangeListener { view, year, month, dayOfMonth ->
            calendarView.visibility = View.GONE
            val date = "$dayOfMonth-${month + 1}-$year"
            Log.d(TAG, date)
            val dayInUnix = DateUtilities.convertDateToTimestamp(date)

            presenter.listenForChanges(dayInUnix.toString())
        }
/*
        choose_day.setOnClickListener { v ->

            val cal = Calendar.getInstance()


            val dateSetListener =
                DatePickerDialog.OnDateSetListener { view, year, monthOfYear, dayOfMonth ->
                    val todayDate = "$dayOfMonth-${monthOfYear + 1}-$year"
                    val dayInUnix = DateUtilities.convertDateToTimestamp(todayDate)

                    presenter.listenForChanges(dayInUnix.toString())
                }

            val s: Int = cal.get(Calendar.YEAR)
            mDatePickerDialog = DatePickerDialog(
                context!!, dateSetListener,
                cal.get(Calendar.YEAR),
                cal.get(Calendar.MONTH),
                cal.get(Calendar.DAY_OF_MONTH)
            )

            mDatePickerDialog!!.datePicker.maxDate = System.currentTimeMillis()
            //mDatePickerDialog!!.datePicker.minDate = 1590703200

            mDatePickerDialog!!.show()
        }
*/
    }

    @RequiresApi(Build.VERSION_CODES.O)
    override fun onStart() {
        super.onStart()
        activity!!.title = "Reports"
        search()
        per_day_current_date?.text = DateUtilities.getTodayInDate()
        val today = DateUtilities.getTodayInUnix().toString()
        presenter.listenForChanges(today)
    }

    private fun search() {
        per_day_search.addTextChangedListener(object : TextWatcher {
            override fun afterTextChanged(s: Editable?) {}

            override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}

            override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
                adapter.filter.filter(s)
            }
        })
    }

    override fun onStop() {
        super.onStop()
        presenter.detachListeners()
    }

    override fun displayNoData() {
//        per_day_empty_iv.visibility = View.VISIBLE
//        per_day_empty_tv.visibility = View.VISIBLE
        report_rv.visibility = View.INVISIBLE
    }

    override fun hideNoData() {
//        per_day_empty_iv.visibility = View.INVISIBLE
//        per_day_empty_tv.visibility = View.INVISIBLE
        report_rv.visibility = View.VISIBLE
    }

    override fun updateRecyclerView(reports: List<Report>) {
        reportList.clear()
        reportList.addAll(reports)
        adapter = ReportPerDayAdapter(reportList)

        report_rv.setHasFixedSize(true)
        report_rv.layoutManager = LinearLayoutManager(context)
        report_rv.adapter = adapter
        adapter.notifyDataSetChanged()
    }

    override fun updateDayView(date: String) {
        per_day_current_date?.text = date
    }

    override fun showConnectionError() {
        Snackbar.make(rootView!!, R.string.no_connection_show_cache, Snackbar.LENGTH_LONG)
            .show()
    }

    override fun setCalendarStartDate(creationDateUnix: Long) {
        calendarView.minDate = creationDateUnix
        Log.d(TAG, creationDateUnix.toString())
    }
}

Answer 1

似乎是个错误。我可以通过从XML删除可见性属性来解决此问题。并以编程方式在onViewCreated中设置可见性，如下所示：calendarView.visibility = View.GONE