I have BottomNavigationView with three fragments. First one has a RecyclerView and I implemented to hide Toolbar after scrolling this RecyclerView and it works. When I change fragment I would like to show it again (actionbar) - but actionbar.isShowing() returns true and actionbar.show() doesn't work. Maybe somebody has an idea?
activity_main.xml
<androidx.coordinatorlayout.widget.CoordinatorLayout
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:background="@android:color/white"
tools:context=".main.MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize">
<androidx.appcompat.widget.Toolbar
android:id="@+id/mainToolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|enterAlways|snap"
app:title="@string/app_name"/>
</com.google.android.material.appbar.AppBarLayout>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/mainNav"
android:layout_width="match_parent"
android:layout_height="56dp"
android:background="@android:color/white"
app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior"
app:menu="@menu/user_tabs_menu" />
<FrameLayout
android:id="@+id/mainFrameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
When you change fragments you should call AppBarLayout.setExpanded(true)
Can you show us some code on how are you making the toolbar disappear?
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