session-android/app/src/main/res/layout/fragment_user_details_bottom_sheet.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:gravity="center_horizontal"
    android:paddingLeft="@dimen/large_spacing"
    android:paddingRight="@dimen/large_spacing"
    android:paddingBottom="@dimen/large_spacing"
    app:behavior_hideable="true"
    app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior">

    <org.thoughtcrime.securesms.components.ProfilePictureView
        android:id="@+id/profilePictureView"
        android:layout_width="@dimen/large_profile_picture_size"
        android:layout_height="@dimen/large_profile_picture_size"
        android:layout_marginTop="@dimen/large_spacing"/>

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/medium_spacing"
        android:gravity="center">

        <LinearLayout
            android:id="@+id/nameTextViewContainer"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:orientation="horizontal"
            android:layout_centerInParent="true"
            android:visibility="visible">

            <View
                android:layout_width="24dp"
                android:layout_height="24dp" />

            <TextView
                android:id="@+id/nameTextView"
                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:textSize="@dimen/large_font_size"
                android:textStyle="bold"
                android:textColor="?android:textColorPrimary"
                android:textAlignment="center"
                android:text="Spiderman" />

            <ImageView
                android:layout_width="20dp"
                android:layout_height="22dp"
                android:contentDescription="@string/AccessibilityId_edit_user_nickname"
                android:paddingTop="2dp"
                android:src="@drawable/ic_baseline_edit_24" />

        </LinearLayout>

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

            <ImageView
                android:id="@+id/cancelNicknameEditingButton"
                android:layout_width="24dp"
                android:layout_height="24dp"
                android:contentDescription="@string/AccessibilityId_cancel"
                android:src="@drawable/ic_baseline_clear_24" />

            <EditText
                android:id="@+id/nicknameEditText"
                style="@style/SmallSessionEditText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginHorizontal="@dimen/small_spacing"
                android:contentDescription="@string/AccessibilityId_username"
                android:textAlignment="center"
                android:paddingVertical="12dp"
                android:inputType="text"
                android:singleLine="true"
                android:imeOptions="actionDone"
                android:textColorHint="?android:textColorSecondary"
                android:hint="@string/fragment_user_details_bottom_sheet_edit_text_hint" />

            <ImageView
                android:id="@+id/saveNicknameButton"
                android:layout_width="24dp"
                android:layout_height="24dp"
                android:contentDescription="@string/AccessibilityId_apply"
                android:src="@drawable/ic_baseline_done_24" />

        </LinearLayout>

    </RelativeLayout>

    <TextView
        style="@style/SessionIDTextView"
        android:id="@+id/publicKeyTextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/medium_spacing"
        android:contentDescription="@string/AccessibilityId_session_id"
        android:textSize="@dimen/medium_font_size"
        android:textIsSelectable="true"
        tools:text="05987d601943c267879be41830888066c6a024cbdc9a548d06813924bf3372ea78" />

    <Button
        style="@style/Widget.Session.Button.Common.ProminentOutline"
        android:id="@+id/messageButton"
        android:layout_width="wrap_content"
        android:layout_height="@dimen/medium_button_height"
        android:layout_marginTop="@dimen/medium_spacing"
        android:contentDescription="@string/AccessibilityId_message_user"
        android:paddingHorizontal="@dimen/large_spacing"
        android:text="@string/ConversationActivity_message" />

</LinearLayout>