Use ConstraintLayout as long as one can be achieved. Reducing the level of nesting layout, drawing performance also improved a lot
ConstraintLayout last few nesting RecyclerView lead to incomplete data
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorWhite">
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:focusable="true"
android:focusableInTouchMode="true"
app:layout_constraintTop_toTopOf="parent" />
<VideoView
android:id="@+id/long_video_view"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="16:10"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="@+id/iv_back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="18dp"
android:src="@drawable/ic_video_content_back"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="@+id/toolbar" />
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recycler_video_comment"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="@dimen/x65"
android:overScrollMode="never"
android:scrollbars="none"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="@+id/long_video_view">
</androidx.recyclerview.widget.RecyclerView>
</androidx.constraintlayout.widget.ConstraintLayout>
If you do not set the app: layout_constraintBottom_toBottomOf = "parent", it will lead to the final few item display incomplete.
Set constraints must give recycleview
These two properties coupled with the festival ok
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
