How to set fill items in BottomNavigationView on Android

Question

In my application i want use BottomNavigationView view to show some fragments.I have 4 fragments and i set this fragments into BottomNavigationView.
I write below codes but in large device screens such as Tables show me this items in center of BottomNavigationView.
such as below image :

But i want show this items fill of BottomNavigationView, such as below image :

My XML codes :

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    android:id="@+id/container"
    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=".MainActivity">

    <fragment
        android:id="@+id/mainNavigationFragment"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:defaultNavHost="true"
        android:layout_above="@+id/bottomNavigationView"
        app:navGraph="@navigation/navigation_graph"/>

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottomNavigationView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?android:attr/windowBackground"
        android:layout_alignParentBottom="true"
        app:menu="@menu/navigation"/>

</RelativeLayout>

How can i change my codes for show items such as image two?

hello i think this is your answer :) [how you fill your bottom navigation menus ?](https://stackoverflow.com/questions/41432902/bottomnavigationview-is-not-full-width) — niceumang, Apr 06 '19 at 12:06

John Joe · Accepted Answer · 2019-04-06T15:53:18.343

Try use ConstraintLayout and see whether the issue is solved

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

    <com.google.android.material.bottomnavigation.BottomNavigationView
        app:labelVisibilityMode="labeled"
        android:id="@+id/bottomNavigationView"
        app:menu="@menu/navigation_manager"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"/>

    <fragment
        android:id="@+id/nav_host_fragment"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@+id/bottomNavigationView"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:menu="@menu/navigation_graph"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintVertical_bias="0.0"/>

</android.support.constraint.ConstraintLayout>

thanks dear, but your code is just set full screen for BottomNavigationView! i want set full screen items of BottomNavigationView ! — Jake warton, Apr 06 '19 at 15:27
yes my friend, i try your code and work me. thanks for your help <3 — Jake warton, Apr 06 '19 at 17:52

How to set fill items in BottomNavigationView on Android

1 Answers1