I have implemented a BottomNavigationView and I would like to hide the menu on scroll.
In the MainActivity
private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
when (item.itemId) {
R.id.navigation_home -> {
switchFragment(ActivitiesFragment.newInstance(), ActivitiesFragment.TAG)
return@OnNavigationItemSelectedListener true
}
R.id.navigation_dashboard -> {
switchFragment(FavoritesFragment.newInstance(), FavoritesFragment.TAG)
return@OnNavigationItemSelectedListener true
}
R.id.navigation_notifications -> {
switchFragment(MapFragment.newInstance(), MapFragment.TAG)
return@OnNavigationItemSelectedListener true
}
}
false
}
My xml
<?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/main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/navigation"
android:layout_below="@+id/main"/>
<android.support.design.widget.BottomNavigationView
android:id="@+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="0dp"
android:layout_marginStart="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/navigation" />
</android.support.constraint.ConstraintLayout>
So far I have found how to implement the the functionality using java but I would like to know what would be the right process to implement this kind of animation.
Note: Android support version 27.1.1
