[Solved] What does ‘view’ container do in XML of Android

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I think in this code, view application is clear:

    <?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:orientation="vertical">

    <android.support.design.widget.TabLayout
        android:id="@+id/tabs"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        app:tabGravity="fill"
        app:tabMode="fixed" />

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="#c6c4c4" />

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

When view is in xml output will be:

enter image description here

But without view in xml output will be:

enter image description here

solved What does ‘view’ container do in XML of Android