BarInsta/app/src/main/res/layout/item_full_post_view.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"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="?attr/actionBarSize"
    android:animateLayoutChanges="true"
    android:orientation="vertical"
    android:weightSum="3.2"
    tools:context=".activities.PostViewer">

    <include
        android:id="@+id/topPanel"
        layout="@layout/item_feed_top" />

    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1.9">

        <awais.instagrabber.customviews.helpers.NestedScrollableHost
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <androidx.viewpager2.widget.ViewPager2
                android:id="@+id/mediaViewPager"
                android:layout_width="match_parent"
                android:layout_height="match_parent" />
        </awais.instagrabber.customviews.helpers.NestedScrollableHost>

        <androidx.appcompat.widget.AppCompatTextView
            android:id="@+id/mediaCounter"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal|bottom"
            android:background="@drawable/rounder_corner_semi_black_bg"
            android:gravity="center"
            android:padding="5dp"
            android:textAppearance="@style/TextAppearance.AppCompat.Caption"
            android:textColor="@android:color/white"
            android:visibility="gone" />

        <ProgressBar
            android:id="@+id/progressView"
            android:layout_width="48dp"
            android:layout_height="48dp"
            android:layout_gravity="center"
            android:visibility="gone" />

        <androidx.appcompat.widget.AppCompatImageView
            android:id="@+id/ivToggleFullScreen"
            android:layout_width="48dp"
            android:layout_height="48dp"
            android:layout_gravity="end|top"
            android:background="?selectableItemBackgroundBorderless"
            android:padding="4dp"
            app:srcCompat="@drawable/ic_fullscreen"
            app:tint="?android:textColorPrimary" />
    </FrameLayout>

    <include
        android:id="@+id/bottomPanel"
        layout="@layout/item_feed_bottom"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

    <androidx.appcompat.widget.LinearLayoutCompat
        android:id="@+id/postActions"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="0.3"
        android:background="#0000"
        android:weightSum="2">

        <androidx.appcompat.widget.AppCompatButton
            android:id="@+id/btnLike"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="6dp"
            android:layout_marginLeft="8dp"
            android:layout_marginRight="8dp"
            android:layout_weight="1"
            android:textColor="@color/btn_lightpink_text_color"
            android:textSize="18sp"
            app:backgroundTint="@color/btn_lightpink_background"
            tools:text="@string/like" />

        <androidx.appcompat.widget.AppCompatButton
            android:id="@+id/btnBookmark"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_marginLeft="8dp"
            android:layout_marginEnd="6dp"
            android:layout_marginRight="8dp"
            android:layout_weight="1"
            android:text="@string/bookmark"
            android:textColor="@color/btn_lightorange_text_color"
            android:textSize="18sp"
            app:backgroundTint="@color/btn_lightorange_background" />
    </androidx.appcompat.widget.LinearLayoutCompat>
</LinearLayout>