session-android/res/layout/activity_edit_closed_group.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:context="org.thoughtcrime.securesms.loki.activities.EditClosedGroupActivity">

    <LinearLayout
        android:id="@+id/mainContentContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <RelativeLayout
            android:id="@+id/ctnGroupNameSection"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="@dimen/large_spacing"
            android:gravity="center">

            <LinearLayout
                android:id="@+id/cntGroupNameEdit"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:orientation="horizontal"
                android:visibility="invisible"
                tools:visibility="invisible">

                <ImageView
                    android:id="@+id/btnCancelGroupNameEdit"
                    android:layout_width="24dp"
                    android:layout_height="24dp"
                    android:src="@drawable/ic_baseline_clear_24"/>

                <EditText
                    style="@style/SessionEditText"
                    android:id="@+id/edtGroupName"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginStart="@dimen/small_spacing"
                    android:layout_marginEnd="@dimen/small_spacing"
                    android:textAlignment="center"
                    android:paddingTop="12dp"
                    android:paddingBottom="12dp"
                    android:inputType="text"
                    android:singleLine="true"
                    android:imeOptions="actionDone"
                    android:hint="@string/activity_edit_closed_group_edit_text_hint" />

                <ImageView
                    android:id="@+id/btnSaveGroupNameEdit"
                    android:layout_width="24dp"
                    android:layout_height="24dp"
                    android:layout_gravity="center"
                    android:src="@drawable/ic_baseline_done_24"/>

            </LinearLayout>

            <LinearLayout
                android:id="@+id/cntGroupNameDisplay"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:visibility="visible"
                tools:visibility="visible">

                <TextView
                    android:id="@+id/lblGroupNameDisplay"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:textColor="@color/text"
                    android:textSize="@dimen/very_large_font_size"
                    android:textStyle="bold"
                    android:textAlignment="center"
                    android:paddingStart="24dp"
                    android:paddingEnd="0dp"
                    android:drawableEnd="@drawable/ic_baseline_edit_24"
                    android:drawablePadding="@dimen/small_spacing"
                    tools:text="SomeGroupName"/>

            </LinearLayout>

        </RelativeLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="1px"
            android:background="?android:dividerHorizontal" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginStart="@dimen/medium_spacing"
                android:layout_marginTop="@dimen/small_spacing"
                android:layout_marginEnd="@dimen/small_spacing"
                android:layout_marginBottom="@dimen/small_spacing"
                android:layout_weight="1"
                android:text="@string/activity_edit_closed_group_edit_members"
                android:textColor="@color/text"
                android:textSize="@dimen/medium_font_size" />

            <Button
                android:id="@+id/addMembersClosedGroupButton"
                style="@style/Widget.Session.Button.Common.ProminentOutline"
                android:layout_width="wrap_content"
                android:layout_height="@dimen/small_button_height"
                android:layout_marginTop="@dimen/small_spacing"
                android:layout_marginEnd="@dimen/medium_spacing"
                android:layout_marginStart="@dimen/small_spacing"
                android:layout_marginBottom="@dimen/small_spacing"
                android:paddingStart="@dimen/medium_spacing"
                android:paddingEnd="@dimen/medium_spacing"
                android:text="@string/activity_edit_closed_group_add_members" />

        </LinearLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="1px"
            android:background="?android:dividerHorizontal" />

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/recyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            tools:listitem="@layout/view_user"/>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/emptyStateContainer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:orientation="vertical"
        android:layout_centerInParent="true">

    </LinearLayout>

    <RelativeLayout
        android:id="@+id/loader"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#A4000000"
        android:visibility="gone"
        android:alpha="0">

        <com.github.ybq.android.spinkit.SpinKitView
            style="@style/SpinKitView.Large.ThreeBounce"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            android:layout_centerInParent="true"
            app:SpinKit_Color="@android:color/white" />

    </RelativeLayout>

</RelativeLayout>