Android FrameLayout项视图在切换其可见性后丢失z索引

我有以下介绍webRtc调用布局的布局

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ui.activities.room.RoomActivity">

    <FrameLayout
        android:id="@+id/primaryFrame"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@color/colorPrimary"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <TextView
            android:id="@+id/primaryPeerCircleText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="UU"
            android:textAllCaps="true"
            android:textSize="28sp"
            android:padding="16dp"
            android:textColor="@color/colorWhite"
            android:background="@drawable/circle_white"
            android:layout_gravity="center"/>

        <org.webrtc.SurfaceViewRenderer
            android:id="@+id/primaryParticipantView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:visibility="gone" />

        <TextView
            android:id="@+id/primaryParticipantText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="16dp"
            android:background="@drawable/primary_background"
            android:padding="4dp"
            android:text=""
            android:textColor="@color/colorWhite"
            android:visibility="gone" />

        <include
            layout="@layout/local_peer_video"
            android:layout_width="120dp"
            android:layout_height="180dp"
            android:layout_gravity="top|right"/>

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

            <HorizontalScrollView
                android:id="@+id/horizontalContainer"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:visibility="gone"
                app:layout_constraintBottom_toTopOf="@+id/controlsLayout"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent">

                <LinearLayout
                    android:id="@+id/participantsContainer"
                    android:layout_width="wrap_content"
                    android:layout_height="180dp"
                    android:orientation="horizontal" />
            </HorizontalScrollView>

        </androidx.constraintlayout.widget.ConstraintLayout>
    </FrameLayout>

</androidx.constraintlayout.widget.ConstraintLayout> 

但是，当远程参与者再次启用视频时，会运行相同的代码片段，并将primaryParticipantView的可见性设置为可见。问题是，现在的

primaryParticipantView

位于本地视频上方，因此我无法看到自己。为什么会这样

val remoteParticipant = session.getRemoteParticipant(params.getString("connectionId"))
        runOnUiThread {
            if (params.getString("property") == "videoActive")
                remoteParticipant?.videoView?.visibility = if (params.getString("newValue") == "true") View.VISIBLE else View.GONE
        }