From 19a15bedfa02669f29392ac5c9a77fdf39927867 Mon Sep 17 00:00:00 2001
From: Sylvain Berfini <sylvain.berfini@belledonne-communications.com>
Date: Tue, 24 Oct 2023 13:50:24 +0200
Subject: [PATCH] Meetings can be scheduled

---
 .../fragment/ScheduleMeetingFragment.kt       |  26 +-
 .../meetings/viewmodel/MeetingViewModel.kt    |   6 +
 .../viewmodel/ScheduleMeetingViewModel.kt     | 168 +++-
 .../main/res/layout-land/chat_fragment.xml    |   2 +-
 .../res/layout-land/contacts_fragment.xml     |   2 +-
 .../main/res/layout-land/history_fragment.xml |   2 +-
 .../res/layout-land/meetings_fragment.xml     |   2 +-
 .../res/layout/meeting_schedule_fragment.xml  | 921 +++++++++---------
 ...meeting_schedule_participant_list_cell.xml |  58 ++
 .../main/res/navigation/main_nav_graph.xml    |  15 +-
 app/src/main/res/values-land/dimen.xml        |   8 +-
 app/src/main/res/values/dimen.xml             |   4 +-
 app/src/main/res/values/styles.xml            |   3 +
 13 files changed, 762 insertions(+), 455 deletions(-)
 create mode 100644 app/src/main/res/layout/meeting_schedule_participant_list_cell.xml

diff --git a/app/src/main/java/org/linphone/ui/main/meetings/fragment/ScheduleMeetingFragment.kt b/app/src/main/java/org/linphone/ui/main/meetings/fragment/ScheduleMeetingFragment.kt
index 1b8316f66..81dad2dbb 100644
--- a/app/src/main/java/org/linphone/ui/main/meetings/fragment/ScheduleMeetingFragment.kt
+++ b/app/src/main/java/org/linphone/ui/main/meetings/fragment/ScheduleMeetingFragment.kt
@@ -33,6 +33,7 @@ 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.MeetingScheduleFragmentBinding
 import org.linphone.ui.main.fragment.GenericFragment
 import org.linphone.ui.main.meetings.viewmodel.ScheduleMeetingViewModel
@@ -58,8 +59,6 @@ class ScheduleMeetingFragment : GenericFragment() {
     }
 
     override fun goBack(): Boolean {
-        sharedViewModel.closeSlidingPaneEvent.value = Event(true)
-        // If not done, when going back to MeetingsList this fragment will be created again
         return findNavController().popBackStack()
     }
 
@@ -150,5 +149,28 @@ class ScheduleMeetingFragment : GenericFragment() {
             }
             picker.show(parentFragmentManager, "End time picker")
         }
+
+        binding.setPickParticipantsClickListener {
+            Log.i("$TAG Going into participant picker fragment")
+            val action = ScheduleMeetingFragmentDirections.actionScheduleMeetingFragmentToAddParticipantsFragment()
+            findNavController().navigate(action)
+        }
+
+        viewModel.conferenceCreatedEvent.observe(viewLifecycleOwner) {
+            it.consume {
+                Log.i("$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)
+            }
+        }
     }
 }
diff --git a/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt b/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt
index d3a7f84dc..0bc31adfa 100644
--- a/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/MeetingViewModel.kt
@@ -194,6 +194,12 @@ class MeetingViewModel @UiThread constructor() : ViewModel() {
                 speakersList.add(ParticipantModel(participant, isOrganizer))
             }
         }
+
+        if (allSpeaker) {
+            Log.i("$TAG All participants have Speaker role, considering it is a meeting")
+            participantsList.addAll(speakersList)
+        }
+
         if (!organizerFound && organizer != null) {
             Log.i("$TAG Organizer not found in participants list, adding it to participants list")
             participantsList.add(ParticipantModel(organizer, true))
diff --git a/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt b/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt
index 97430080f..c858f5e59 100644
--- a/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt
@@ -20,14 +20,25 @@
 package org.linphone.ui.main.meetings.viewmodel
 
 import androidx.annotation.UiThread
+import androidx.annotation.WorkerThread
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import java.util.Calendar
 import java.util.Locale
 import java.util.TimeZone
+import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.R
+import org.linphone.core.Address
+import org.linphone.core.ChatRoom
+import org.linphone.core.ConferenceScheduler
+import org.linphone.core.ConferenceSchedulerListenerStub
+import org.linphone.core.Factory
+import org.linphone.core.Participant
+import org.linphone.core.ParticipantInfo
 import org.linphone.core.tools.Log
+import org.linphone.ui.main.model.SelectedAddressModel
 import org.linphone.utils.AppUtils
+import org.linphone.utils.Event
 import org.linphone.utils.TimestampUtils
 
 class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
@@ -57,6 +68,12 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
 
     val sendInvitations = MutableLiveData<Boolean>()
 
+    val participants = MutableLiveData<ArrayList<SelectedAddressModel>>()
+
+    val operationInProgress = MutableLiveData<Boolean>()
+
+    val conferenceCreatedEvent = MutableLiveData<Event<Boolean>>()
+
     private var startTimestamp = 0L
     private var endTimestamp = 0L
 
@@ -66,10 +83,76 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
     internal var endHour = 0
     internal var endMinutes = 0
 
+    private lateinit var conferenceScheduler: ConferenceScheduler
+
+    private val conferenceSchedulerListener = object : ConferenceSchedulerListenerStub() {
+        @WorkerThread
+        override fun onStateChanged(
+            conferenceScheduler: ConferenceScheduler,
+            state: ConferenceScheduler.State?
+        ) {
+            Log.i("$TAG Conference state changed [$state]")
+            when (state) {
+                ConferenceScheduler.State.Error -> {
+                    operationInProgress.postValue(false)
+                    // TODO: show error toast
+                }
+                ConferenceScheduler.State.Ready -> {
+                    val conferenceAddress = conferenceScheduler.info?.uri
+                    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()
+                        chatRoomParams.isGroupEnabled = false
+                        chatRoomParams.backend = ChatRoom.Backend.FlexisipChat
+                        chatRoomParams.isEncryptionEnabled = true
+                        chatRoomParams.subject = "Meeting invitation" // Won't be used
+                        conferenceScheduler.sendInvitations(chatRoomParams)
+                    } else {
+                        Log.i("$TAG User didn't asked for invitations to be sent")
+                        operationInProgress.postValue(false)
+                        conferenceCreatedEvent.postValue(Event(true))
+                    }
+                }
+                else -> {
+                }
+            }
+        }
+
+        @WorkerThread
+        override fun onInvitationsSent(
+            conferenceScheduler: ConferenceScheduler,
+            failedInvitations: Array<out Address>?
+        ) {
+            when (val failedCount = failedInvitations?.size) {
+                0 -> {
+                    Log.i("$TAG All invitations have been sent")
+                }
+                participants.value.orEmpty().size -> {
+                    Log.e("$TAG No invitation sent!")
+                    // TODO: show error toast
+                }
+                else -> {
+                    Log.w("$TAG [$failedCount] invitations couldn't have been sent for:")
+                    for (failed in failedInvitations.orEmpty()) {
+                        Log.w(failed.asStringUriOnly())
+                    }
+                    // TODO: show error toast
+                }
+            }
+
+            operationInProgress.postValue(false)
+            conferenceCreatedEvent.postValue(Event(true))
+        }
+    }
+
     init {
         isBroadcastSelected.value = false
         showBroadcastHelp.value = false
         allDayMeeting.value = false
+        sendInvitations.value = true
 
         val now = System.currentTimeMillis()
         val cal = Calendar.getInstance()
@@ -109,7 +192,16 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
                 }
             }
         )
-        sendInvitations.value = true
+    }
+
+    override fun onCleared() {
+        super.onCleared()
+
+        coreContext.postOnCoreThread {
+            if (::conferenceScheduler.isInitialized) {
+                conferenceScheduler.removeListener(conferenceSchedulerListener)
+            }
+        }
     }
 
     @UiThread
@@ -171,6 +263,80 @@ class ScheduleMeetingViewModel @UiThread constructor() : ViewModel() {
         showBroadcastHelp.value = false
     }
 
+    @UiThread
+    fun addParticipants(toAdd: ArrayList<String>) {
+        coreContext.postOnCoreThread {
+            val list = arrayListOf<SelectedAddressModel>()
+            for (participant in toAdd) {
+                val address = Factory.instance().createAddress(participant)
+                if (address == null) {
+                    Log.e("$TAG Failed to parse [$participant] as address!")
+                } else {
+                    val avatarModel = coreContext.contactsManager.getContactAvatarModelForAddress(
+                        address
+                    )
+                    val model = SelectedAddressModel(address, avatarModel) {
+                        // onRemoveFromSelection
+                    }
+                    list.add(model)
+                }
+            }
+            participants.postValue(list)
+        }
+    }
+
+    @UiThread
+    fun schedule() {
+        coreContext.postOnCoreThread { core ->
+            Log.i(
+                "$TAG Scheduling ${if (isBroadcastSelected.value == true) "broadcast" else "meeting"}"
+            )
+            operationInProgress.postValue(true)
+
+            val localAccount = core.defaultAccount
+            val localAddress = localAccount?.params?.identityAddress
+
+            val conferenceInfo = Factory.instance().createConferenceInfo()
+            conferenceInfo.organizer = localAddress
+            conferenceInfo.subject = subject.value
+            conferenceInfo.description = description.value
+
+            val startTime = startTimestamp / 1000 // Linphone expects timestamp in seconds
+            conferenceInfo.dateTime = startTime
+            val duration = ((endTimestamp - startTimestamp) / 1000).toInt() // Linphone expects duration in seconds
+            conferenceInfo.duration = duration
+
+            val participantsList = participants.value.orEmpty()
+            val participantsInfoList = arrayListOf<ParticipantInfo>()
+            for (participant in participantsList) {
+                val info = Factory.instance().createParticipantInfo(participant.address)
+                if (info == null) {
+                    Log.e(
+                        "$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)
+            }
+
+            conferenceScheduler.account = localAccount
+            // Will trigger the conference creation/update automatically
+            conferenceScheduler.info = conferenceInfo
+        }
+    }
+
     @UiThread
     private fun computeDateLabels() {
         val start = TimestampUtils.toString(
diff --git a/app/src/main/res/layout-land/chat_fragment.xml b/app/src/main/res/layout-land/chat_fragment.xml
index 35d35ed0d..d7f70c2bb 100644
--- a/app/src/main/res/layout-land/chat_fragment.xml
+++ b/app/src/main/res/layout-land/chat_fragment.xml
@@ -14,7 +14,7 @@
         <androidx.fragment.app.FragmentContainerView
             android:id="@+id/conversations_list"
             android:name="org.linphone.ui.main.chat.fragment.ConversationsListFragment"
-            android:layout_width="@dimen/sliding_pane_left_fragment_with_nav_width"
+            android:layout_width="@dimen/sliding_pane_left_fragment_width"
             android:layout_height="match_parent"
             app:layout="@layout/chat_list_fragment"/>
 
diff --git a/app/src/main/res/layout-land/contacts_fragment.xml b/app/src/main/res/layout-land/contacts_fragment.xml
index 82213983c..9dda56568 100644
--- a/app/src/main/res/layout-land/contacts_fragment.xml
+++ b/app/src/main/res/layout-land/contacts_fragment.xml
@@ -14,7 +14,7 @@
         <androidx.fragment.app.FragmentContainerView
             android:id="@+id/contacts_list"
             android:name="org.linphone.ui.main.contacts.fragment.ContactsListFragment"
-            android:layout_width="@dimen/sliding_pane_left_fragment_with_nav_width"
+            android:layout_width="@dimen/sliding_pane_left_fragment_width"
             android:layout_height="match_parent"
             app:layout="@layout/contacts_list_fragment"/>
 
diff --git a/app/src/main/res/layout-land/history_fragment.xml b/app/src/main/res/layout-land/history_fragment.xml
index 39f7e1818..1f429aee0 100644
--- a/app/src/main/res/layout-land/history_fragment.xml
+++ b/app/src/main/res/layout-land/history_fragment.xml
@@ -14,7 +14,7 @@
         <androidx.fragment.app.FragmentContainerView
             android:id="@+id/history"
             android:name="org.linphone.ui.main.history.fragment.HistoryListFragment"
-            android:layout_width="@dimen/sliding_pane_left_fragment_with_nav_width"
+            android:layout_width="@dimen/sliding_pane_left_fragment_width"
             android:layout_height="match_parent"
             app:layout="@layout/history_list_fragment"/>
 
diff --git a/app/src/main/res/layout-land/meetings_fragment.xml b/app/src/main/res/layout-land/meetings_fragment.xml
index cbcfda647..178545578 100644
--- a/app/src/main/res/layout-land/meetings_fragment.xml
+++ b/app/src/main/res/layout-land/meetings_fragment.xml
@@ -14,7 +14,7 @@
         <androidx.fragment.app.FragmentContainerView
             android:id="@+id/meetings_list"
             android:name="org.linphone.ui.main.meetings.fragment.MeetingsListFragment"
-            android:layout_width="@dimen/sliding_pane_left_fragment_with_nav_width"
+            android:layout_width="@dimen/sliding_pane_left_fragment_width"
             android:layout_height="match_parent"
             app:layout="@layout/meetings_list_fragment"/>
 
diff --git a/app/src/main/res/layout/meeting_schedule_fragment.xml b/app/src/main/res/layout/meeting_schedule_fragment.xml
index 1952ebb7a..dcdf27411 100644
--- a/app/src/main/res/layout/meeting_schedule_fragment.xml
+++ b/app/src/main/res/layout/meeting_schedule_fragment.xml
@@ -19,479 +19,522 @@
         <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.constraintlayout.widget.ConstraintLayout
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:background="@color/white">
+        android:layout_height="match_parent">
 
-        <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="@color/orange_main_500"
-            app:layout_constraintBottom_toBottomOf="@id/title"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="@id/title"/>
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="@color/white">
 
-        <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_title"
-            app:layout_constraintEnd_toStartOf="@id/schedule"
-            app:layout_constraintStart_toEndOf="@id/back"
-            app:layout_constraintTop_toTopOf="parent"/>
+            <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="@color/orange_main_500"
+                app:layout_constraintBottom_toBottomOf="@id/title"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="@id/title"/>
 
-        <ImageView
-            android:id="@+id/schedule"
-            android:layout_width="wrap_content"
-            android:layout_height="0dp"
-            android:padding="15dp"
-            android:adjustViewBounds="true"
-            android:src="@drawable/check"
-            app:tint="@color/orange_main_500"
-            app:layout_constraintBottom_toBottomOf="@id/title"
-            app:layout_constraintEnd_toEndOf="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_title"
+                app:layout_constraintEnd_toStartOf="@id/schedule"
+                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">
+            <ImageView
+                android:id="@+id/schedule"
+                android:onClick="@{() -> viewModel.schedule()}"
+                android:layout_width="wrap_content"
+                android:layout_height="0dp"
+                android:padding="15dp"
+                android:adjustViewBounds="true"
+                android:src="@drawable/check"
+                app:tint="@color/orange_main_500"
+                app:layout_constraintBottom_toBottomOf="@id/title"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintTop_toTopOf="@id/title" />
 
-            <androidx.constraintlayout.widget.ConstraintLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content">
+            <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.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/meeting_selected"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@string/meeting_schedule_meeting_label"
-                    android:textColor="@color/primary_button_label_color"
-                    android:textSize="16sp"
-                    android:gravity="center"
-                    android:drawableStart="@drawable/users_three"
-                    android:drawableTint="@color/primary_button_label_color"
-                    android:drawablePadding="5dp"
-                    android:background="@drawable/primary_button_background"
-                    android:paddingTop="@dimen/primary_secondary_buttons_label_padding"
-                    android:paddingBottom="@dimen/primary_secondary_buttons_label_padding"
-                    android:paddingStart="16dp"
-                    android:paddingEnd="16dp"
-                    android:visibility="@{viewModel.isBroadcastSelected ? View.GONE : View.VISIBLE}"
-                    app:layout_constraintTop_toTopOf="parent"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toStartOf="@id/broadcast"/>
-
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/broadcast"
-                    android:onClick="@{() -> viewModel.selectBroadcast()}"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@string/meeting_schedule_broadcast_label"
-                    android:textColor="@color/secondary_button_label_color"
-                    android:textSize="16sp"
-                    android:gravity="center"
-                    android:drawableStart="@drawable/slideshow"
-                    android:drawableTint="@color/secondary_button_label_color"
-                    android:drawablePadding="5dp"
-                    android:background="@drawable/secondary_button_background"
-                    android:paddingTop="@dimen/primary_secondary_buttons_label_padding"
-                    android:paddingBottom="@dimen/primary_secondary_buttons_label_padding"
-                    android:paddingStart="16dp"
-                    android:paddingEnd="16dp"
-                    android:visibility="@{viewModel.isBroadcastSelected ? View.GONE : View.VISIBLE}"
-                    app:layout_constraintTop_toTopOf="parent"
-                    app:layout_constraintStart_toEndOf="@id/meeting_selected"
-                    app:layout_constraintEnd_toEndOf="parent"/>
-
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/meeting"
-                    android:onClick="@{() -> viewModel.selectMeeting()}"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@string/meeting_schedule_meeting_label"
-                    android:textColor="@color/secondary_button_label_color"
-                    android:textSize="16sp"
-                    android:gravity="center"
-                    android:drawableStart="@drawable/users_three"
-                    android:drawableTint="@color/secondary_button_label_color"
-                    android:drawablePadding="5dp"
-                    android:background="@drawable/secondary_button_background"
-                    android:paddingTop="@dimen/primary_secondary_buttons_label_padding"
-                    android:paddingBottom="@dimen/primary_secondary_buttons_label_padding"
-                    android:paddingStart="16dp"
-                    android:paddingEnd="16dp"
-                    android:visibility="@{viewModel.isBroadcastSelected ? View.VISIBLE : View.GONE, default=gone}"
-                    app:layout_constraintTop_toBottomOf="@id/meeting_selected"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toStartOf="@id/broadcast_selected"/>
-
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/broadcast_selected"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:text="@string/meeting_schedule_broadcast_label"
-                    android:textColor="@color/primary_button_label_color"
-                    android:textSize="16sp"
-                    android:gravity="center"
-                    android:drawableStart="@drawable/slideshow"
-                    android:drawableTint="@color/primary_button_label_color"
-                    android:drawablePadding="5dp"
-                    android:background="@drawable/primary_button_background"
-                    android:paddingTop="@dimen/primary_secondary_buttons_label_padding"
-                    android:paddingBottom="@dimen/primary_secondary_buttons_label_padding"
-                    android:paddingStart="16dp"
-                    android:paddingEnd="16dp"
-                    android:visibility="@{viewModel.isBroadcastSelected ? View.VISIBLE : View.GONE, default=gone}"
-                    app:layout_constraintTop_toBottomOf="@id/broadcast"
-                    app:layout_constraintStart_toEndOf="@id/meeting"
-                    app:layout_constraintEnd_toEndOf="parent"/>
-
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style"
-                    android:id="@+id/broadcast_help"
+                <androidx.constraintlayout.widget.ConstraintLayout
                     android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="16dp"
-                    android:layout_marginStart="16dp"
-                    android:layout_marginEnd="16dp"
-                    android:paddingTop="8dp"
-                    android:paddingBottom="8dp"
-                    android:paddingStart="16dp"
-                    android:paddingEnd="16dp"
-                    android:text="@string/meeting_schedule_broadcast_help"
-                    android:textSize="14sp"
-                    android:textColor="@color/gray_main2_500"
-                    android:drawableStart="@drawable/info"
-                    android:drawablePadding="5dp"
-                    android:gravity="center"
-                    android:background="@drawable/shape_squircle_main2_100_background"
-                    android:visibility="@{viewModel.showBroadcastHelp ? View.VISIBLE : View.GONE}"
-                    app:layout_constraintTop_toBottomOf="@id/meeting"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                    android:layout_height="wrap_content">
 
-                <ImageView
-                    android:id="@+id/close_broadcast_help"
-                    android:onClick="@{() -> viewModel.closeBroadcastHelp()}"
-                    android:layout_width="@dimen/icon_size"
-                    android:layout_height="@dimen/icon_size"
-                    android:layout_marginEnd="16dp"
-                    android:src="@drawable/x"
-                    android:visibility="@{viewModel.showBroadcastHelp ? View.VISIBLE : View.GONE}"
-                    app:layout_constraintTop_toTopOf="@id/broadcast_help"
-                    app:layout_constraintBottom_toBottomOf="@id/broadcast_help"
-                    app:layout_constraintEnd_toEndOf="@id/broadcast_help" />
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/meeting_selected"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@string/meeting_schedule_meeting_label"
+                        android:textColor="@color/primary_button_label_color"
+                        android:textSize="16sp"
+                        android:gravity="center"
+                        android:drawableStart="@drawable/users_three"
+                        android:drawableTint="@color/primary_button_label_color"
+                        android:drawablePadding="5dp"
+                        android:background="@drawable/primary_button_background"
+                        android:paddingTop="@dimen/primary_secondary_buttons_label_padding"
+                        android:paddingBottom="@dimen/primary_secondary_buttons_label_padding"
+                        android:paddingStart="16dp"
+                        android:paddingEnd="16dp"
+                        android:visibility="@{viewModel.isBroadcastSelected ? View.GONE : View.VISIBLE}"
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toStartOf="@id/broadcast"/>
 
-                <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="@color/gray_main2_600"
-                    android:text="@={viewModel.subject}"
-                    android:textSize="20sp"
-                    android:textColor="@color/gray_main2_600"
-                    android:inputType="text|textCapSentences"
-                    android:drawableStart="@{viewModel.isBroadcastSelected ? @drawable/slideshow : @drawable/users_three, default=@drawable/users_three}"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="@color/gray_main2_600"
-                    android:background="@color/transparent_color"
-                    app:layout_constraintTop_toBottomOf="@id/broadcast_help"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/broadcast"
+                        android:onClick="@{() -> viewModel.selectBroadcast()}"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@string/meeting_schedule_broadcast_label"
+                        android:textColor="@color/secondary_button_label_color"
+                        android:textSize="16sp"
+                        android:gravity="center"
+                        android:drawableStart="@drawable/slideshow"
+                        android:drawableTint="@color/secondary_button_label_color"
+                        android:drawablePadding="5dp"
+                        android:background="@drawable/secondary_button_background"
+                        android:paddingTop="@dimen/primary_secondary_buttons_label_padding"
+                        android:paddingBottom="@dimen/primary_secondary_buttons_label_padding"
+                        android:paddingStart="16dp"
+                        android:paddingEnd="16dp"
+                        android:visibility="@{viewModel.isBroadcastSelected ? View.GONE : View.VISIBLE}"
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintStart_toEndOf="@id/meeting_selected"
+                        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="@color/gray_main2_200" />
+                    <androidx.appcompat.widget.AppCompatTextView
+                        style="@style/default_text_style"
+                        android:id="@+id/meeting"
+                        android:onClick="@{() -> viewModel.selectMeeting()}"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@string/meeting_schedule_meeting_label"
+                        android:textColor="@color/secondary_button_label_color"
+                        android:textSize="16sp"
+                        android:gravity="center"
+                        android:drawableStart="@drawable/users_three"
+                        android:drawableTint="@color/secondary_button_label_color"
+                        android:drawablePadding="5dp"
+                        android:background="@drawable/secondary_button_background"
+                        android:paddingTop="@dimen/primary_secondary_buttons_label_padding"
+                        android:paddingBottom="@dimen/primary_secondary_buttons_label_padding"
+                        android:paddingStart="16dp"
+                        android:paddingEnd="16dp"
+                        android:visibility="@{viewModel.isBroadcastSelected ? View.VISIBLE : View.GONE, default=gone}"
+                        app:layout_constraintTop_toBottomOf="@id/meeting_selected"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toStartOf="@id/broadcast_selected"/>
 
-                <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"
+                        android:id="@+id/broadcast_selected"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:text="@string/meeting_schedule_broadcast_label"
+                        android:textColor="@color/primary_button_label_color"
+                        android:textSize="16sp"
+                        android:gravity="center"
+                        android:drawableStart="@drawable/slideshow"
+                        android:drawableTint="@color/primary_button_label_color"
+                        android:drawablePadding="5dp"
+                        android:background="@drawable/primary_button_background"
+                        android:paddingTop="@dimen/primary_secondary_buttons_label_padding"
+                        android:paddingBottom="@dimen/primary_secondary_buttons_label_padding"
+                        android:paddingStart="16dp"
+                        android:paddingEnd="16dp"
+                        android:visibility="@{viewModel.isBroadcastSelected ? View.VISIBLE : View.GONE, default=gone}"
+                        app:layout_constraintTop_toBottomOf="@id/broadcast"
+                        app:layout_constraintStart_toEndOf="@id/meeting"
+                        app:layout_constraintEnd_toEndOf="parent"/>
 
-                <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="@color/gray_main2_600"
-                    android:textSize="14sp"
-                    android:drawableStart="@drawable/clock"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="@color/gray_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/broadcast_help"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginStart="16dp"
+                        android:layout_marginEnd="16dp"
+                        android:paddingTop="8dp"
+                        android:paddingBottom="8dp"
+                        android:paddingStart="16dp"
+                        android:paddingEnd="16dp"
+                        android:text="@string/meeting_schedule_broadcast_help"
+                        android:textSize="14sp"
+                        android:textColor="@color/gray_main2_500"
+                        android:drawableStart="@drawable/info"
+                        android:drawablePadding="5dp"
+                        android:gravity="center"
+                        android:background="@drawable/shape_squircle_main2_100_background"
+                        android:visibility="@{viewModel.showBroadcastHelp ? View.VISIBLE : View.GONE}"
+                        app:layout_constraintTop_toBottomOf="@id/meeting"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-                <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="@color/gray_main2_600"
-                    app:layout_constraintStart_toStartOf="@id/all_day"
-                    app:layout_constraintTop_toBottomOf="@id/all_day_switch" />
+                    <ImageView
+                        android:id="@+id/close_broadcast_help"
+                        android:onClick="@{() -> viewModel.closeBroadcastHelp()}"
+                        android:layout_width="@dimen/icon_size"
+                        android:layout_height="@dimen/icon_size"
+                        android:layout_marginEnd="16dp"
+                        android:src="@drawable/x"
+                        android:visibility="@{viewModel.showBroadcastHelp ? View.VISIBLE : View.GONE}"
+                        app:layout_constraintTop_toTopOf="@id/broadcast_help"
+                        app:layout_constraintBottom_toBottomOf="@id/broadcast_help"
+                        app:layout_constraintEnd_toEndOf="@id/broadcast_help" />
 
-                <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="@color/gray_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.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="@color/gray_main2_600"
+                        android:text="@={viewModel.subject}"
+                        android:textSize="20sp"
+                        android:textColor="@color/gray_main2_600"
+                        android:inputType="text|textCapSentences"
+                        android:drawableStart="@{viewModel.isBroadcastSelected ? @drawable/slideshow : @drawable/users_three, default=@drawable/users_three}"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="@color/gray_main2_600"
+                        android:background="@color/transparent_color"
+                        app:layout_constraintTop_toBottomOf="@id/broadcast_help"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-                <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="@color/gray_main2_600"
-                    android:visibility="@{viewModel.allDayMeeting ? View.GONE : View.VISIBLE}"
-                    app:layout_constraintStart_toStartOf="@id/from_date"
-                    app:layout_constraintTop_toBottomOf="@id/from_date" />
+                    <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="@color/gray_main2_200" />
 
-                <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="@color/gray_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" />
+                    <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/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="@color/gray_main2_600"
-                    android:textSize="14sp"
-                    android:maxLines="1"
-                    android:ellipsize="end"
-                    android:drawableStart="@drawable/globe_hemisphere_west"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="@color/gray_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/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="@color/gray_main2_600"
+                        android:textSize="14sp"
+                        android:drawableStart="@drawable/clock"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="@color/gray_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_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="@color/gray_main2_600"
-                    android:textSize="14sp"
-                    android:drawableStart="@drawable/arrow_clockwise"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="@color/gray_main2_600"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/timezone" />
+                    <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="@color/gray_main2_600"
+                        app:layout_constraintStart_toStartOf="@id/all_day"
+                        app:layout_constraintTop_toBottomOf="@id/all_day_switch" />
 
-                <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="@color/gray_main2_200" />
+                    <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="@color/gray_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.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="@color/gray_main2_600"
-                    android:text="@={viewModel.description}"
-                    android:textSize="14sp"
-                    android:textColor="@color/gray_main2_600"
-                    android:inputType="text|textCapSentences"
-                    android:drawableStart="@drawable/file_text"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="@color/gray_main2_600"
-                    android:background="@color/transparent_color"
-                    app:layout_constraintTop_toBottomOf="@id/separator_2"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent" />
+                    <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="@color/gray_main2_600"
+                        android:visibility="@{viewModel.allDayMeeting ? View.GONE : View.VISIBLE}"
+                        app:layout_constraintStart_toStartOf="@id/from_date"
+                        app:layout_constraintTop_toBottomOf="@id/from_date" />
 
-                <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="@color/gray_main2_200" />
+                    <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="@color/gray_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/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="@color/gray_main2_600"
-                    android:textSize="14sp"
-                    android:drawableStart="@drawable/user_square"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="@color/gray_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" />
+                    <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="@color/gray_main2_600"
+                        android:textSize="14sp"
+                        android:maxLines="1"
+                        android:ellipsize="end"
+                        android:drawableStart="@drawable/globe_hemisphere_west"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="@color/gray_main2_600"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/to_date" />
 
-                <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="@color/gray_main2_200" />
+                    <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="@color/gray_main2_600"
+                        android:textSize="14sp"
+                        android:drawableStart="@drawable/arrow_clockwise"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="@color/gray_main2_600"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintTop_toBottomOf="@id/timezone" />
 
-                <androidx.appcompat.widget.AppCompatTextView
-                    style="@style/default_text_style_700"
-                    android:id="@+id/participants"
-                    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="@color/gray_main2_600"
-                    android:textSize="14sp"
-                    android:drawableStart="@drawable/users"
-                    android:drawablePadding="8dp"
-                    android:drawableTint="@color/gray_main2_600"
-                    app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/separator_4" />
+                    <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="@color/gray_main2_200" />
 
-                <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/participants"
-                    android:background="@color/gray_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="@color/gray_main2_600"
+                        android:text="@={viewModel.description}"
+                        android:textSize="14sp"
+                        android:textColor="@color/gray_main2_600"
+                        android:inputType="text|textCapSentences"
+                        android:drawableStart="@drawable/file_text"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="@color/gray_main2_600"
+                        android:background="@color/transparent_color"
+                        app:layout_constraintTop_toBottomOf="@id/separator_2"
+                        app:layout_constraintStart_toStartOf="parent"
+                        app:layout_constraintEnd_toEndOf="parent" />
 
-                <CheckBox
-                    style="@style/default_text_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" />
+                    <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="@color/gray_main2_200" />
 
-            </androidx.constraintlayout.widget.ConstraintLayout>
+                    <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="@color/gray_main2_600"
+                        android:textSize="14sp"
+                        android:drawableStart="@drawable/user_square"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="@color/gray_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" />
 
-        </ScrollView>
+                    <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="@color/gray_main2_200" />
 
-    </androidx.constraintlayout.widget.ConstraintLayout>
+                    <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="@color/gray_main2_600"
+                        android:textSize="14sp"
+                        android:drawableStart="@drawable/users"
+                        android:drawablePadding="8dp"
+                        android:drawableTint="@color/gray_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="8dp"
+                        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}"/>
+
+                    <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/participants_list"
+                        android:background="@color/gray_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>
+
+        <include
+            layout="@layout/operation_in_progress"
+            bind:visibility="@{viewModel.operationInProgress}" />
+
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
 
 </layout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/meeting_schedule_participant_list_cell.xml b/app/src/main/res/layout/meeting_schedule_participant_list_cell.xml
new file mode 100644
index 000000000..6264f5ce4
--- /dev/null
+++ b/app/src/main/res/layout/meeting_schedule_participant_list_cell.xml
@@ -0,0 +1,58 @@
+<?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">
+
+    <data>
+        <import type="android.view.View" />
+        <import type="org.linphone.core.ConsolidatedPresence" />
+        <variable
+            name="model"
+            type="org.linphone.ui.main.model.SelectedAddressModel" />
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <com.google.android.material.imageview.ShapeableImageView
+            style="@style/avatar_imageview"
+            android:id="@+id/avatar"
+            android:layout_width="@dimen/avatar_list_cell_size"
+            android:layout_height="@dimen/avatar_list_cell_size"
+            android:layout_marginStart="12dp"
+            android:layout_marginTop="5dp"
+            android:layout_marginBottom="5dp"
+            coilAvatar="@{model.avatarModel}"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <ImageView
+            android:id="@+id/presence_badge"
+            android:layout_width="@dimen/avatar_presence_badge_size"
+            android:layout_height="@dimen/avatar_presence_badge_size"
+            android:layout_marginEnd="@dimen/avatar_presence_badge_end_margin"
+            android:background="@drawable/led_background"
+            android:padding="@dimen/avatar_presence_badge_padding"
+            app:presenceIcon="@{model.avatarModel.presenceStatus}"
+            android:visibility="@{model.avatarModel.presenceStatus == ConsolidatedPresence.Offline ? View.GONE : View.VISIBLE}"
+            app:layout_constraintEnd_toEndOf="@id/avatar"
+            app:layout_constraintBottom_toBottomOf="@id/avatar"/>
+
+        <androidx.appcompat.widget.AppCompatTextView
+            style="@style/default_text_style"
+            android:id="@+id/name"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:text="@{model.avatarModel.name, default=`John Doe`}"
+            android:textSize="14sp"
+            android:layout_marginStart="10dp"
+            app:layout_constraintStart_toEndOf="@id/avatar"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</layout>
\ No newline at end of file
diff --git a/app/src/main/res/navigation/main_nav_graph.xml b/app/src/main/res/navigation/main_nav_graph.xml
index c0870c5ee..6f7a53d3e 100644
--- a/app/src/main/res/navigation/main_nav_graph.xml
+++ b/app/src/main/res/navigation/main_nav_graph.xml
@@ -260,7 +260,15 @@
         android:id="@+id/scheduleMeetingFragment"
         android:name="org.linphone.ui.main.meetings.fragment.ScheduleMeetingFragment"
         android:label="ScheduleMeetingFragment"
-        tools:layout="@layout/meeting_schedule_fragment"/>
+        tools:layout="@layout/meeting_schedule_fragment">
+        <action
+            android:id="@+id/action_scheduleMeetingFragment_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>
 
     <action
         android:id="@+id/action_global_scheduleMeetingFragment"
@@ -268,5 +276,10 @@
         app:enterAnim="@anim/slide_in"
         app:launchSingleTop="true"
         app:popExitAnim="@anim/slide_out"/>
+    <fragment
+        android:id="@+id/addParticipantsFragment"
+        android:name="org.linphone.ui.main.fragment.AddParticipantsFragment"
+        android:label="AddParticipantsFragment"
+        tools:layout="@layout/generic_add_participants_fragment"/>
 
 </navigation>
\ No newline at end of file
diff --git a/app/src/main/res/values-land/dimen.xml b/app/src/main/res/values-land/dimen.xml
index 7ebbe3a9e..ec242d9ee 100644
--- a/app/src/main/res/values-land/dimen.xml
+++ b/app/src/main/res/values-land/dimen.xml
@@ -1,11 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+    <dimen name="sliding_pane_left_fragment_width">450dp</dimen>
+    <dimen name="sliding_pane_right_fragment_width">450dp</dimen>
+
     <dimen name="call_main_actions_menu_height">110dp</dimen>
     <dimen name="call_extra_actions_menu_height">125dp</dimen>
     <dimen name="call_all_actions_menu_height">235dp</dimen> <!-- sum of above two -->
-
-    <dimen name="landscape_nav_bar_width">75dp</dimen>
-    <dimen name="sliding_pane_left_fragment_width">425dp</dimen>
-    <!-- This value is the result of the above two added together -->
-    <dimen name="sliding_pane_left_fragment_with_nav_width">500dp</dimen>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimen.xml b/app/src/main/res/values/dimen.xml
index 6589b67c5..9dc1c5dc4 100644
--- a/app/src/main/res/values/dimen.xml
+++ b/app/src/main/res/values/dimen.xml
@@ -5,9 +5,7 @@
     <dimen name="screen_bottom_margin">32dp</dimen>
 
     <dimen name="landscape_nav_bar_width">75dp</dimen>
-    <dimen name="sliding_pane_left_fragment_width">280dp</dimen>
-    <!-- This value is the result of the above two added together -->
-    <dimen name="sliding_pane_left_fragment_with_nav_width">355dp</dimen>
+    <dimen name="sliding_pane_left_fragment_width">300dp</dimen>
     <dimen name="sliding_pane_right_fragment_width">300dp</dimen>
 
     <dimen name="small_icon_size">14dp</dimen>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 3f272ac1a..c40202942 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -145,6 +145,9 @@
         <item name="thumbTint">@color/white</item>
         <item name="trackTint">@color/switch_track_color</item>
         <item name="trackDecorationTint">@color/transparent_color</item>
+        <item name="android:fontFamily">@font/noto_sans</item>
+        <item name="android:textColor">@color/gray_main2_600</item>
+        <item name="android:textSize">14sp</item>
     </style>
     <style name="ShapeAppearance.CircularBorder" parent="">
         <item name="cornerFamily">rounded</item>