Added edit meeting fragment

app/src/main/java/org/linphone/core/CoreContext.kt

@@ -121,16 +121,16 @@ class CoreContext @UiThread constructor(val context: Context) : HandlerThread("C
         @WorkerThread
         override fun onConfiguringStatus(
             core: Core,
-            status: Config.ConfiguringState?,
+            status: ConfiguringState?,
             message: String?
         ) {
             Log.i("$TAG Configuring state changed [$status]")
-            if (status == Config.ConfiguringState.Successful) {
+            if (status == ConfiguringState.Successful) {
                 val text = context.getString(
                     org.linphone.R.string.assistant_qr_code_provisioning_done
                 )
                 greenToastToShowEvent.postValue(Event(Pair(text, org.linphone.R.drawable.smiley)))
-            } else if (status == Config.ConfiguringState.Failed) {
+            } else if (status == ConfiguringState.Failed) {
                 val text = context.getString(
                     org.linphone.R.string.assistant_qr_code_provisioning_done
                 )

app/src/main/java/org/linphone/ui/main/chat/fragment/ConversationInfoFragment.kt

@@ -211,9 +211,13 @@ class ConversationInfoFragment : SlidingPaneChildFragment() {
         }
 
         binding.setAddParticipantsClickListener {
-            val action = ConversationInfoFragmentDirections.actionConversationInfoFragmentToAddParticipantsFragment()
+            if (findNavController().currentDestination?.id == R.id.conversationInfoFragment) {
+                Log.i("$TAG Going into participant picker fragment")
+                val action =
+                    ConversationInfoFragmentDirections.actionConversationInfoFragmentToAddParticipantsFragment()
                 findNavController().navigate(action)
             }
+        }
 
         binding.setEditSubjectClickListener {
             val currentSubject = viewModel.subject.value.orEmpty()

app/src/main/java/org/linphone/ui/main/chat/model/MessageModel.kt

@@ -581,7 +581,7 @@ class MessageModel @WorkerThread constructor(
                 hideYear = false
             )
             val startTime = TimestampUtils.timeToString(timestamp)
-            val end = timestamp + (duration * 60)
+            val end = timestamp + duration
             val endTime = TimestampUtils.timeToString(end)
             meetingDate.postValue(date)
             meetingTime.postValue("$startTime - $endTime")

app/src/main/java/org/linphone/ui/main/meetings/fragment/EditMeetingFragment.kt

@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2010-2023 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.ui.main.meetings.fragment
+
+import android.os.Bundle
+import android.text.format.DateFormat
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.annotation.UiThread
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.findNavController
+import androidx.navigation.fragment.navArgs
+import com.google.android.material.datepicker.CalendarConstraints
+import com.google.android.material.datepicker.DateValidatorPointForward
+import com.google.android.material.datepicker.MaterialDatePicker
+import com.google.android.material.timepicker.MaterialTimePicker
+import com.google.android.material.timepicker.TimeFormat
+import org.linphone.R
+import org.linphone.core.tools.Log
+import org.linphone.databinding.MeetingEditFragmentBinding
+import org.linphone.ui.main.fragment.SlidingPaneChildFragment
+import org.linphone.ui.main.meetings.viewmodel.ScheduleMeetingViewModel
+import org.linphone.utils.Event
+
+@UiThread
+class EditMeetingFragment : SlidingPaneChildFragment() {
+    companion object {
+        private const val TAG = "[Edit Meeting Fragment]"
+    }
+
+    private lateinit var binding: MeetingEditFragmentBinding
+
+    private lateinit var viewModel: ScheduleMeetingViewModel
+
+    private val args: EditMeetingFragmentArgs by navArgs()
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = MeetingEditFragmentBinding.inflate(layoutInflater)
+        return binding.root
+    }
+
+    override fun goBack(): Boolean {
+        return findNavController().popBackStack()
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        binding.lifecycleOwner = viewLifecycleOwner
+
+        viewModel = ViewModelProvider(this)[ScheduleMeetingViewModel::class.java]
+        binding.viewModel = viewModel
+
+        val conferenceUri = args.conferenceUri
+        Log.i("$TAG Found conference URI [$conferenceUri] in arguments")
+        viewModel.loadExistingConferenceInfoFromUri(conferenceUri)
+
+        binding.setBackClickListener {
+            goBack()
+        }
+
+        binding.setPickStartDateClickListener {
+            val constraintsBuilder =
+                CalendarConstraints.Builder()
+                    .setValidator(DateValidatorPointForward.now())
+            val picker =
+                MaterialDatePicker.Builder.datePicker()
+                    .setCalendarConstraints(constraintsBuilder.build())
+                    .setTitleText(R.string.meeting_schedule_pick_start_date_title)
+                    .setSelection(viewModel.getCurrentlySelectedStartDate())
+                    .build()
+            picker.addOnPositiveButtonClickListener {
+                val selection = picker.selection
+                if (selection != null) {
+                    viewModel.setStartDate(selection)
+                }
+            }
+            picker.show(parentFragmentManager, "Start date picker")
+        }
+
+        binding.setPickEndDateClickListener {
+            val constraintsBuilder =
+                CalendarConstraints.Builder()
+                    .setValidator(
+                        DateValidatorPointForward.from(viewModel.getCurrentlySelectedStartDate())
+                    )
+            val picker =
+                MaterialDatePicker.Builder.datePicker()
+                    .setCalendarConstraints(constraintsBuilder.build())
+                    .setTitleText(R.string.meeting_schedule_pick_end_date_title)
+                    .setSelection(viewModel.getCurrentlySelectedEndDate())
+                    .build()
+            picker.addOnPositiveButtonClickListener {
+                val selection = picker.selection
+                if (selection != null) {
+                    viewModel.setEndDate(selection)
+                }
+            }
+            picker.show(parentFragmentManager, "End date picker")
+        }
+
+        binding.setPickStartTimeClickListener {
+            val isSystem24Hour = DateFormat.is24HourFormat(requireContext())
+            val clockFormat = if (isSystem24Hour) TimeFormat.CLOCK_24H else TimeFormat.CLOCK_12H
+            val picker =
+                MaterialTimePicker.Builder()
+                    .setTimeFormat(clockFormat)
+                    .setTitleText(R.string.meeting_schedule_pick_start_time_title)
+                    .setHour(viewModel.startHour)
+                    .setMinute(viewModel.startMinutes)
+                    .build()
+            picker.addOnPositiveButtonClickListener {
+                viewModel.setStartTime(picker.hour, picker.minute)
+            }
+            picker.show(parentFragmentManager, "Start time picker")
+        }
+
+        binding.setPickEndTimeClickListener {
+            val isSystem24Hour = DateFormat.is24HourFormat(
+                requireContext()
+            )
+            val clockFormat = if (isSystem24Hour) TimeFormat.CLOCK_24H else TimeFormat.CLOCK_12H
+            val picker =
+                MaterialTimePicker.Builder()
+                    .setTimeFormat(clockFormat)
+                    .setTitleText(R.string.meeting_schedule_pick_end_time_title)
+                    .setHour(viewModel.endHour)
+                    .setMinute(viewModel.endMinutes)
+                    .build()
+            picker.addOnPositiveButtonClickListener {
+                viewModel.setEndTime(picker.hour, picker.minute)
+            }
+            picker.show(parentFragmentManager, "End time picker")
+        }
+
+        binding.setPickParticipantsClickListener {
+            if (findNavController().currentDestination?.id == R.id.editMeetingFragment) {
+                Log.i("$TAG Going into participant picker fragment")
+                val action =
+                    EditMeetingFragmentDirections.actionEditMeetingFragmentToAddParticipantsFragment()
+                findNavController().navigate(action)
+            }
+        }
+
+        viewModel.conferenceCreatedEvent.observe(viewLifecycleOwner) {
+            it.consume {
+                Log.i("$TAG Conference was scheduled, leaving fragment and ask list to refresh")
+                sharedViewModel.forceRefreshMeetingsListEvent.value = Event(true)
+                goBack()
+            }
+        }
+
+        sharedViewModel.listOfSelectedSipUrisEvent.observe(viewLifecycleOwner) {
+            it.consume { list ->
+                Log.i(
+                    "$TAG Found [${list.size}] new participants to add to the meeting, let's do it"
+                )
+                viewModel.addParticipants(list)
+            }
+        }
+    }
+}

app/src/main/java/org/linphone/ui/main/meetings/fragment/MeetingFragment.kt

@@ -95,6 +95,19 @@ class MeetingFragment : SlidingPaneChildFragment() {
             goBack()
         }
 
+        binding.setEditClickListener {
+            val conferenceUri = viewModel.sipUri.value.orEmpty()
+            if (conferenceUri.isNotEmpty()) {
+                Log.i(
+                    "$TAG Navigating to meeting edit fragment with conference URI [$conferenceUri]"
+                )
+                val action = MeetingFragmentDirections.actionMeetingFragmentToEditMeetingFragment(
+                    conferenceUri
+                )
+                findNavController().navigate(action)
+            }
+        }
+
         binding.setShareClickListener {
             copyMeetingAddressIntoClipboard(uri)
         }

app/src/main/java/org/linphone/ui/main/meetings/fragment/ScheduleMeetingFragment.kt

@@ -158,10 +158,13 @@ class ScheduleMeetingFragment : GenericFragment() {
         }
 
         binding.setPickParticipantsClickListener {
+            if (findNavController().currentDestination?.id == R.id.scheduleMeetingFragment) {
                 Log.i("$TAG Going into participant picker fragment")
-            val action = ScheduleMeetingFragmentDirections.actionScheduleMeetingFragmentToAddParticipantsFragment()
+                val action =
+                    ScheduleMeetingFragmentDirections.actionScheduleMeetingFragmentToAddParticipantsFragment()
                 findNavController().navigate(action)
             }
+        }
 
         viewModel.conferenceCreatedEvent.observe(viewLifecycleOwner) {
             it.consume {

app/src/main/java/org/linphone/ui/main/meetings/model/MeetingModel.kt

@@ -49,7 +49,7 @@ class MeetingModel @WorkerThread constructor(private val conferenceInfo: Confere
 
     private val startTime = TimestampUtils.timeToString(timestamp)
 
-    private val endTime = TimestampUtils.timeToString(timestamp + (conferenceInfo.duration * 60))
+    private val endTime = TimestampUtils.timeToString(timestamp + conferenceInfo.duration)
 
     val time = "$startTime - $endTime"
 

app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt

@@ -130,7 +130,7 @@ class MeetingViewModel @UiThread constructor() : ViewModel() {
                 hideYear = false
             )
             val startTime = TimestampUtils.timeToString(timestamp)
-            val end = timestamp + (duration * 60)
+            val end = timestamp + duration
             val endTime = TimestampUtils.timeToString(end)
             startTimeStamp.postValue(timestamp * 1000)
             endTimeStamp.postValue(end * 1000)

app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingWaitingRoomViewModel.kt

@@ -326,7 +326,7 @@ class MeetingWaitingRoomViewModel @UiThread constructor() : ViewModel() {
                 hideYear = false
             )
             val startTime = TimestampUtils.timeToString(timestamp)
-            val end = timestamp + (duration * 60)
+            val end = timestamp + duration
             val endTime = TimestampUtils.timeToString(end)
             dateTime.postValue("$date | $startTime - $endTime")
 

app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt

@@ -19,6 +19,7 @@
  */
 package org.linphone.ui.main.meetings.viewmodel
 
+import androidx.annotation.AnyThread
 import androidx.annotation.UiThread
 import androidx.annotation.WorkerThread
 import androidx.lifecycle.MutableLiveData
@@ -30,6 +31,7 @@ import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.R
 import org.linphone.core.Address
 import org.linphone.core.ChatRoom
+import org.linphone.core.ConferenceInfo
 import org.linphone.core.ConferenceScheduler
 import org.linphone.core.ConferenceSchedulerListenerStub
 import org.linphone.core.Factory
@@ -85,6 +87,8 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
 
     private lateinit var conferenceScheduler: ConferenceScheduler
 
+    private lateinit var conferenceInfoToEdit: ConferenceInfo
+
     private val conferenceSchedulerListener = object : ConferenceSchedulerListenerStub() {
         @WorkerThread
         override fun onStateChanged(
@@ -99,9 +103,16 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
                 }
                 ConferenceScheduler.State.Ready -> {
                     val conferenceAddress = conferenceScheduler.info?.uri
+                    if (::conferenceInfoToEdit.isInitialized) {
                         Log.i(
-                        "$TAG Conference info created, address will be ${conferenceAddress?.asStringUriOnly()}"
+                            "$TAG Conference info [${conferenceInfoToEdit.uri?.asStringUriOnly()}] has been updated"
                         )
+                    } else {
+                        Log.i(
+                            "$TAG Conference info created, address will be [${conferenceAddress?.asStringUriOnly()}]"
+                        )
+                    }
+
                     if (sendInvitations.value == true) {
                         Log.i("$TAG User asked for invitations to be sent, let's do it")
                         val chatRoomParams = coreContext.core.createDefaultChatRoomParams()
@@ -179,19 +190,7 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
 
         computeDateLabels()
         computeTimeLabels()
-
+        updateTimezone()
-        timezone.value = AppUtils.getFormattedString(
-            R.string.meeting_schedule_timezone_title,
-            TimeZone.getDefault().displayName.replaceFirstChar {
-                if (it.isLowerCase()) {
-                    it.titlecase(
-                        Locale.getDefault()
-                    )
-                } else {
-                    it.toString()
-                }
-            }
-        )
     }
 
     override fun onCleared() {
@@ -204,6 +203,64 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
         }
     }
 
+    @UiThread
+    fun loadExistingConferenceInfoFromUri(conferenceUri: String) {
+        coreContext.postOnCoreThread { core ->
+            val conferenceAddress = core.interpretUrl(conferenceUri, false)
+            if (conferenceAddress == null) {
+                Log.e("$TAG Failed to parse conference URI [$conferenceUri], abort")
+                return@postOnCoreThread
+            }
+
+            val conferenceInfo = core.findConferenceInformationFromUri(conferenceAddress)
+            if (conferenceInfo == null) {
+                Log.e(
+                    "$TAG Failed to find a conference info matching URI [${conferenceAddress.asString()}], abort"
+                )
+                return@postOnCoreThread
+            }
+
+            conferenceInfoToEdit = conferenceInfo
+            Log.i(
+                "$TAG Found conference info matching URI [${conferenceInfo.uri?.asString()}] with subject [${conferenceInfo.subject}]"
+            )
+            subject.postValue(conferenceInfo.subject)
+            description.postValue(conferenceInfo.description)
+
+            isBroadcastSelected.postValue(false) // TODO FIXME
+
+            startHour = 0
+            startMinutes = 0
+            endHour = 0
+            endMinutes = 0
+            startTimestamp = conferenceInfo.dateTime * 1000 /* Linphone timestamps are in seconds */
+            endTimestamp = (conferenceInfo.dateTime + conferenceInfo.duration) * 1000 /* Linphone timestamps are in seconds */
+            Log.i(
+                "$TAG Loaded start date is [$startTimestamp], loaded end date is [$endTimestamp]"
+            )
+            computeDateLabels()
+            computeTimeLabels()
+            updateTimezone()
+
+            val list = arrayListOf<SelectedAddressModel>()
+            for (participant in conferenceInfo.participantInfos) {
+                val address = participant.address
+                val avatarModel = coreContext.contactsManager.getContactAvatarModelForAddress(
+                    address
+                )
+                val model = SelectedAddressModel(address, avatarModel) {
+                    // onRemoveFromSelection
+                }
+                list.add(model)
+                Log.i("$TAG Loaded participant [${address.asStringUriOnly()}]")
+            }
+            Log.i(
+                "$TAG [${list.size}] participants loaded from found conference info"
+            )
+            participants.postValue(list)
+        }
+    }
+
     @UiThread
     fun getCurrentlySelectedStartDate(): Long {
         return startTimestamp
@@ -292,6 +349,8 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
         }
     }
 
+    // TODO FIXME handle speakers when in broadcast mode
+
     @UiThread
     fun schedule() {
         coreContext.postOnCoreThread { core ->
@@ -339,12 +398,64 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
             }
 
             conferenceScheduler.account = localAccount
-            // Will trigger the conference creation/update automatically
+            // Will trigger the conference creation automatically
             conferenceScheduler.info = conferenceInfo
         }
     }
 
     @UiThread
+    fun update() {
+        coreContext.postOnCoreThread { core ->
+            Log.i(
+                "$TAG Updating ${if (isBroadcastSelected.value == true) "broadcast" else "meeting"}"
+            )
+            if (!::conferenceInfoToEdit.isInitialized) {
+                Log.e("No conference info to edit found!")
+                return@postOnCoreThread
+            }
+
+            operationInProgress.postValue(true)
+
+            val conferenceInfo = conferenceInfoToEdit
+            conferenceInfo.subject = subject.value
+            conferenceInfo.description = description.value
+
+            val startTime = startTimestamp / 1000 // Linphone expects timestamp in seconds
+            conferenceInfo.dateTime = startTime
+            val duration = ((endTimestamp - startTimestamp) / 1000).toInt() // Linphone expects duration in seconds
+            conferenceInfo.duration = duration
+
+            val participantsList = participants.value.orEmpty()
+            val participantsInfoList = arrayListOf<ParticipantInfo>()
+            for (participant in participantsList) {
+                val info = Factory.instance().createParticipantInfo(participant.address)
+                if (info == null) {
+                    Log.e(
+                        "$TAG Failed to create Participant Info from address [${participant.address.asStringUriOnly()}]"
+                    )
+                    continue
+                }
+
+                // For meetings, all participants must have Speaker role
+                info.role = Participant.Role.Speaker
+                participantsInfoList.add(info)
+            }
+
+            val participantsInfoArray = arrayOfNulls<ParticipantInfo>(participantsInfoList.size)
+            participantsInfoList.toArray(participantsInfoArray)
+            conferenceInfo.setParticipantInfos(participantsInfoArray)
+
+            if (!::conferenceScheduler.isInitialized) {
+                conferenceScheduler = core.createConferenceScheduler()
+                conferenceScheduler.addListener(conferenceSchedulerListener)
+            }
+
+            // Will trigger the conference update automatically
+            conferenceScheduler.info = conferenceInfo
+        }
+    }
+
+    @AnyThread
     private fun computeDateLabels() {
         val start = TimestampUtils.toString(
             startTimestamp,
@@ -353,7 +464,7 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
             shortDate = false,
             hideYear = false
         )
-        fromDate.value = start
+        fromDate.postValue(start)
         Log.i("$TAG Computed start date for timestamp [$startTimestamp] is [$start]")
 
         val end = TimestampUtils.toString(
@@ -363,25 +474,47 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
             shortDate = false,
             hideYear = false
         )
-        toDate.value = end
+        toDate.postValue(end)
         Log.i("$TAG Computed end date for timestamp [$endTimestamp] is [$end]")
     }
 
-    @UiThread
+    @AnyThread
     private fun computeTimeLabels() {
         val cal = Calendar.getInstance()
         cal.timeInMillis = startTimestamp
+        if (startHour != 0 && startMinutes != 0) {
             cal.set(Calendar.HOUR_OF_DAY, startHour)
             cal.set(Calendar.MINUTE, startMinutes)
+        }
         val start = TimestampUtils.timeToString(cal.timeInMillis, timestampInSecs = false)
         Log.i("$TAG Computed start time for timestamp [$startTimestamp] is [$start]")
-        fromTime.value = start
+        fromTime.postValue(start)
 
         cal.timeInMillis = endTimestamp
+        if (endHour != 0 && endMinutes != 0) {
             cal.set(Calendar.HOUR_OF_DAY, endHour)
             cal.set(Calendar.MINUTE, endMinutes)
+        }
         val end = TimestampUtils.timeToString(cal.timeInMillis, timestampInSecs = false)
         Log.i("$TAG Computed end time for timestamp [$endTimestamp] is [$end]")
-        toTime.value = end
+        toTime.postValue(end)
+    }
+
+    @AnyThread
+    private fun updateTimezone() {
+        timezone.postValue(
+            AppUtils.getFormattedString(
+                R.string.meeting_schedule_timezone_title,
+                TimeZone.getDefault().displayName.replaceFirstChar {
+                    if (it.isLowerCase()) {
+                        it.titlecase(
+                            Locale.getDefault()
+                        )
+                    } else {
+                        it.toString()
+                    }
+                }
+            )
+        )
     }
 }

app/src/main/res/layout/meeting_edit_fragment.xml

@@ -0,0 +1,415 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:bind="http://schemas.android.com/tools">
+
+    <data>
+        <import type="android.view.View" />
+        <variable
+            name="backClickListener"
+            type="View.OnClickListener" />
+        <variable
+            name="pickStartDateClickListener"
+            type="View.OnClickListener" />
+        <variable
+            name="pickEndDateClickListener"
+            type="View.OnClickListener" />
+        <variable
+            name="pickStartTimeClickListener"
+            type="View.OnClickListener" />
+        <variable
+            name="pickEndTimeClickListener"
+            type="View.OnClickListener" />
+        <variable
+            name="pickParticipantsClickListener"
+            type="View.OnClickListener" />
+        <variable
+            name="viewModel"
+            type="org.linphone.ui.main.meetings.viewmodel.ScheduleMeetingViewModel" />
+    </data>
+
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="?attr/color_main2_000">
+
+            <ImageView
+                android:id="@+id/back"
+                android:layout_width="wrap_content"
+                android:layout_height="0dp"
+                android:padding="15dp"
+                android:adjustViewBounds="true"
+                android:onClick="@{backClickListener}"
+                android:src="@drawable/caret_left"
+                app:tint="?attr/color_main1_500"
+                app:layout_constraintBottom_toBottomOf="@id/title"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="@id/title"/>
+
+            <androidx.appcompat.widget.AppCompatTextView
+                style="@style/main_page_title_style"
+                android:id="@+id/title"
+                android:layout_width="0dp"
+                android:layout_height="@dimen/top_bar_height"
+                android:layout_marginStart="10dp"
+                android:layout_marginEnd="10dp"
+                android:text="@string/meeting_schedule_edit_title"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toEndOf="@id/back"
+                app:layout_constraintTop_toTopOf="parent"/>
+
+            <ScrollView
+                android:id="@+id/scrollView"
+                android:layout_width="0dp"
+                android:layout_height="0dp"
+                android:fillViewport="true"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintTop_toBottomOf="@id/title"
+                app:layout_constraintBottom_toBottomOf="parent">
+
+                <androidx.constraintlayout.widget.ConstraintLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content">
+
+                    <androidx.appcompat.widget.AppCompatEditText
+                        style="@style/default_text_style_800"
+                        android:id="@+id/subject"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="32dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:hint="@string/meeting_schedule_subject_hint"
+                        android:textColorHint="?attr/color_main2_600"
+                        android:text="@={viewModel.subject}"
+                        android:textSize="20sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:inputType="text|textCapSentences"
+                        android:drawableStart="@{viewModel.isBroadcastSelected ? @drawable/slideshow : @drawable/meeting, default=@drawable/meeting}"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        android:background="@color/transparent_color"
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
+
+                    <View
+                        android:id="@+id/separator"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="10dp"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/subject"
+                        android:background="?attr/color_main2_200" />
+
+                    <com.google.android.material.materialswitch.MaterialSwitch
+                        style="@style/material_switch_style"
+                        android:id="@+id/all_day_switch"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:layout_marginTop="16dp"
+                        android:checked="@={viewModel.allDayMeeting}"
+                        app:layout_constraintStart_toEndOf="@id/all_day"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/separator"/>
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style_700"
+                        android:id="@+id/all_day"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginStart="16dp"
+                        android:text="@string/meeting_schedule_date_all_day_title"
+                        android:textColor="?attr/color_main2_600"
+                        android:textSize="14sp"
+                        android:drawableStart="@drawable/clock"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toStartOf="@id/all_day_switch"
+                        app:layout_constraintTop_toTopOf="@id/all_day_switch"
+                        app:layout_constraintBottom_toBottomOf="@id/all_day_switch"/>
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/from_date"
+                        android:onClick="@{pickStartDateClickListener}"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginStart="32dp"
+                        android:layout_marginTop="16dp"
+                        android:text="@{viewModel.fromDate, default=`Tue. October 10th, 2023`}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        app:layout_constraintStart_toStartOf="@id/all_day"
+                        app:layout_constraintTop_toBottomOf="@id/all_day_switch" />
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/from_time"
+                        android:onClick="@{pickStartTimeClickListener}"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@{viewModel.fromTime, default=`17:00`}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:visibility="@{viewModel.allDayMeeting ? View.GONE : View.VISIBLE}"
+                        app:layout_constraintEnd_toEndOf="@id/all_day_switch"
+                        app:layout_constraintTop_toTopOf="@id/from_date" />
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/to_date"
+                        android:onClick="@{pickEndDateClickListener}"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:text="@{viewModel.toDate, default=`Tue. October 10th, 2023`}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:visibility="@{viewModel.allDayMeeting ? View.GONE : View.VISIBLE}"
+                        app:layout_constraintStart_toStartOf="@id/from_date"
+                        app:layout_constraintTop_toBottomOf="@id/from_date" />
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/to_time"
+                        android:onClick="@{pickEndTimeClickListener}"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@{viewModel.toTime, default=`17:00`}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:visibility="@{viewModel.allDayMeeting ? View.GONE : View.VISIBLE}"
+                        app:layout_constraintEnd_toEndOf="@id/all_day_switch"
+                        app:layout_constraintTop_toTopOf="@id/to_date" />
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style_700"
+                        android:id="@+id/timezone"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="26dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@{viewModel.timezone, default=@string/meeting_schedule_timezone_title}"
+                        android:textColor="?attr/color_main2_600"
+                        android:textSize="14sp"
+                        android:maxLines="1"
+                        android:ellipsize="end"
+                        android:drawableStart="@drawable/globe_hemisphere_west"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/to_date" />
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style_700"
+                        android:id="@+id/repeat"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="24dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@string/meeting_schedule_one_time_label"
+                        android:textColor="?attr/color_main2_600"
+                        android:textSize="14sp"
+                        android:drawableStart="@drawable/arrow_clockwise"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/timezone" />
+
+                    <View
+                        android:id="@+id/separator_2"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="16dp"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/repeat"
+                        android:background="?attr/color_main2_200" />
+
+                    <androidx.appcompat.widget.AppCompatEditText
+                        style="@style/default_text_style_700"
+                        android:id="@+id/description"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:hint="@string/meeting_schedule_description_hint"
+                        android:textColorHint="?attr/color_main2_600"
+                        android:text="@={viewModel.description}"
+                        android:textSize="14sp"
+                        android:textColor="?attr/color_main2_600"
+                        android:inputType="text|textCapSentences"
+                        android:drawableStart="@drawable/file_text"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        android:background="@color/transparent_color"
+                        app:layout_constraintTop_toBottomOf="@id/separator_2"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
+
+                    <View
+                        android:id="@+id/separator_3"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="16dp"
+                        android:visibility="@{viewModel.isBroadcastSelected ? View.VISIBLE : View.GONE}"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/description"
+                        android:background="?attr/color_main2_200" />
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style_700"
+                        android:id="@+id/speakers"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="20dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@string/meeting_schedule_add_speaker_title"
+                        android:textColor="?attr/color_main2_600"
+                        android:textSize="14sp"
+                        android:drawableStart="@drawable/user_square"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        android:visibility="@{viewModel.isBroadcastSelected ? View.VISIBLE : View.GONE}"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/separator_3" />
+
+                    <View
+                        android:id="@+id/separator_4"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="16dp"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/speakers"
+                        android:background="?attr/color_main2_200" />
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style_700"
+                        android:id="@+id/participants"
+                        android:onClick="@{pickParticipantsClickListener}"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="20dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@string/meeting_schedule_add_participants_title"
+                        android:textColor="?attr/color_main2_600"
+                        android:textSize="14sp"
+                        android:drawableStart="@drawable/users"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="?attr/color_main2_600"
+                        android:visibility="@{viewModel.participants.size() > 0 ? View.GONE : View.VISIBLE}"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/separator_4" />
+
+                    <ImageView
+                        android:id="@+id/participants_list_icon"
+                        android:onClick="@{pickParticipantsClickListener}"
+                        android:layout_width="@dimen/icon_size"
+                        android:layout_height="@dimen/icon_size"
+                        android:layout_marginStart="16dp"
+                        android:src="@drawable/users"
+                        android:visibility="@{viewModel.participants.size() > 0 ? View.VISIBLE : View.GONE, default=gone}"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintTop_toTopOf="@id/participants_list" />
+
+                    <LinearLayout
+                        android:id="@+id/participants_list"
+                        android:onClick="@{pickParticipantsClickListener}"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:orientation="vertical"
+                        android:layout_marginTop="20dp"
+                        android:layout_marginStart="10dp"
+                        android:layout_marginEnd="16dp"
+                        android:visibility="@{viewModel.participants.size() > 0 ? View.VISIBLE : View.GONE, default=gone}"
+                        app:layout_constraintTop_toBottomOf="@id/participants"
+                        app:layout_constraintStart_toEndOf="@id/participants_list_icon"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        entries="@{viewModel.participants}"
+                        layout="@{@layout/meeting_schedule_participant_list_cell}"/>
+
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style_300"
+                        android:id="@+id/add_more_participants"
+                        android:onClick="@{pickParticipantsClickListener}"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginStart="10dp"
+                        android:layout_marginTop="10dp"
+                        android:text="@string/meeting_schedule_add_more_participants_title"
+                        android:visibility="@{viewModel.participants.size() > 0 ? View.VISIBLE : View.GONE, default=gone}"
+                        app:layout_constraintTop_toBottomOf="@id/participants_list"
+                        app:layout_constraintStart_toEndOf="@id/participants_list_icon" />
+
+                    <View
+                        android:id="@+id/separator_5"
+                        android:layout_width="0dp"
+                        android:layout_height="1dp"
+                        android:layout_marginTop="16dp"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/add_more_participants"
+                        android:background="?attr/color_main2_200" />
+
+                    <com.google.android.material.materialswitch.MaterialSwitch
+                        style="@style/material_switch_style"
+                        android:id="@+id/send_invitations"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="20dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@string/meeting_schedule_send_invitations_title"
+                        android:textColor="@color/gray_main2_600"
+                        android:textSize="14sp"
+                        android:checked="@={viewModel.sendInvitations}"
+                        app:layout_constraintTop_toBottomOf="@id/separator_5"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
+
+                </androidx.constraintlayout.widget.ConstraintLayout>
+
+            </ScrollView>
+
+        </androidx.constraintlayout.widget.ConstraintLayout>
+
+        <com.google.android.material.floatingactionbutton.FloatingActionButton
+            android:id="@+id/save_changes"
+            android:onClick="@{() -> viewModel.update()}"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="end|bottom"
+            android:layout_margin="16dp"
+            android:src="@drawable/check"
+            app:tint="?attr/color_on_main"
+            app:backgroundTint="?attr/color_main1_500"
+            app:shapeAppearanceOverlay="@style/rounded" />
+
+        <include
+            layout="@layout/operation_in_progress"
+            bind:visibility="@{viewModel.operationInProgress}" />
+
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+
+</layout>

app/src/main/res/layout/meeting_fragment.xml

@@ -7,6 +7,9 @@
         <variable
             name="backClickListener"
             type="View.OnClickListener" />
+        <variable
+            name="editClickListener"
+            type="View.OnClickListener" />
         <variable
             name="menuClickListener"
             type="View.OnClickListener" />
@@ -53,12 +56,13 @@
 
         <ImageView
             android:id="@+id/edit"
+            android:onClick="@{editClickListener}"
             android:layout_width="wrap_content"
             android:layout_height="0dp"
             android:padding="15dp"
             android:adjustViewBounds="true"
             android:src="@drawable/pencil_simple"
-            android:visibility="@{viewModel.isEditable ? View.VISIBLE : View.GONE, default=gone}"
+            android:visibility="@{viewModel.isEditable ? View.VISIBLE : View.GONE}"
             app:tint="@color/primary_color_selector"
             app:layout_constraintStart_toEndOf="@id/title"
             app:layout_constraintEnd_toStartOf="@id/menu"

app/src/main/res/layout/meeting_schedule_fragment.xml

@@ -66,12 +66,11 @@
                 android:id="@+id/scrollView"
                 android:layout_width="0dp"
                 android:layout_height="0dp"
-                android:layout_marginBottom="16dp"
                 android:fillViewport="true"
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintTop_toBottomOf="@id/title"
-                app:layout_constraintBottom_toTopOf="@id/schedule">
+                app:layout_constraintBottom_toBottomOf="parent">
 
                 <androidx.constraintlayout.widget.ConstraintLayout
                     android:layout_width="match_parent"
@@ -531,24 +530,19 @@
 
             </ScrollView>
 
-            <androidx.appcompat.widget.AppCompatTextView
+        </androidx.constraintlayout.widget.ConstraintLayout>
-                style="@style/primary_button_label_style"
+
+        <com.google.android.material.floatingactionbutton.FloatingActionButton
             android:id="@+id/schedule"
             android:onClick="@{() -> viewModel.schedule()}"
-                android:layout_width="0dp"
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-                android:layout_marginStart="16dp"
+            android:layout_gravity="end|bottom"
-                android:layout_marginEnd="16dp"
+            android:layout_margin="16dp"
-                android:layout_marginBottom="16dp"
+            android:src="@drawable/check"
-                android:paddingStart="20dp"
+            app:tint="?attr/color_on_main"
-                android:paddingEnd="20dp"
+            app:backgroundTint="?attr/color_main1_500"
-                android:text="@string/meeting_schedule_create_title"
+            app:shapeAppearanceOverlay="@style/rounded" />
-                app:layout_constraintWidth_max="@dimen/button_max_width"
-                app:layout_constraintBottom_toBottomOf="parent"
-                app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintEnd_toEndOf="parent" />
-
-        </androidx.constraintlayout.widget.ConstraintLayout>
 
         <include
             layout="@layout/operation_in_progress"

app/src/main/res/navigation/meetings_nav_graph.xml

@@ -24,6 +24,14 @@
             app:destination="@id/emptyFragment"
             app:popUpTo="@id/meetingFragment"
             app:popUpToInclusive="true" />
+        <action
+            android:id="@+id/action_meetingFragment_to_editMeetingFragment"
+            app:destination="@id/editMeetingFragment"
+            app:launchSingleTop="true"
+            app:enterAnim="@anim/slide_in_right"
+            app:exitAnim="@anim/slide_out_left"
+            app:popEnterAnim="@anim/slide_in_left"
+            app:popExitAnim="@anim/slide_out_right"  />
     </fragment>
 
     <action
@@ -31,4 +39,27 @@
         app:destination="@id/meetingFragment"
         app:launchSingleTop="true"/>
 
+    <fragment
+        android:id="@+id/editMeetingFragment"
+        android:name="org.linphone.ui.main.meetings.fragment.EditMeetingFragment"
+        android:label="EditMeetingFragment"
+        tools:layout="@layout/meeting_edit_fragment">
+        <argument
+            android:name="conferenceUri"
+            app:argType="string" />
+        <action
+            android:id="@+id/action_editMeetingFragment_to_addParticipantsFragment"
+            app:destination="@id/addParticipantsFragment"
+            app:enterAnim="@anim/slide_in_right"
+            app:exitAnim="@anim/slide_out_left"
+            app:popEnterAnim="@anim/slide_in_left"
+            app:popExitAnim="@anim/slide_out_right" />
+    </fragment>
+
+    <fragment
+        android:id="@+id/addParticipantsFragment"
+        android:name="org.linphone.ui.main.fragment.AddParticipantsFragment"
+        android:label="AddParticipantsFragment"
+        tools:layout="@layout/generic_add_participants_fragment"/>
+
 </navigation>

app/src/main/res/values/strings.xml

@@ -489,6 +489,7 @@
     <string name="meeting_info_deleted_toast">Meeting has been deleted</string>
     <string name="meeting_schedule_description_title">Description</string>
     <string name="meeting_schedule_create_title">Create</string>
+    <string name="meeting_schedule_edit_title">Edit meeting</string>
 
     <string name="meeting_waiting_room_join">Join</string>