Я создаю и android приложение, в котором основное действие состоит из TabLayout и ViewPager. Для запуска другого действия необходима кнопка с плавающим действием, проблема в том, что когда я добавляю CoordinatorLayout, ViewPager не прокручивается (ViewPager содержит 3 фрагмента, один с RecyclerView, а два других содержат только текстовое представление с большим количеством текста, поэтому все они должны прокручиваться вертикально.
ViewPager работает отлично, но когда я помещаю его в CoordinatorLayout невозможно выполнить вертикальную прокрутку в любом из фрагментов, загруженных в ViewPager.
Я пытался добавить android: nestedScrollingEnabled = "true" в каждый фрагмент root макета, но это не работает.
РЕДАКТИРОВАТЬ: все фрагменты, загруженные в ViewPager имеют ScrollView как Root представление. Это мой основной макет деятельности:
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<androidx.coordinatorlayout.widget.CoordinatorLayout
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:elevation="0dp"
>
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
/>
<com.google.android.material.tabs.TabLayout
android:id="@+id/TabLayoutPrincipal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabIndicatorColor="@color/colorAccent"
app:tabGravity="fill"
app:tabMode="fixed"/>
<androidx.viewpager.widget.ViewPager
android:id="@+id/ViewPagerPrincipal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/white"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:nestedScrollingEnabled="true"
/>
</com.google.android.material.appbar.AppBarLayout>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/addShotFAB"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_add_white_24dp"
android:layout_gravity="bottom|end"
android:layout_margin="16dp"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
<com.google.android.material.navigation.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="@menu/menu_drawer"/>
</androidx.drawerlayout.widget.DrawerLayout>
Это то, что внутри фрагмента с RecyclerView :
<?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:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:nestedScrollingEnabled="true">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/RecViewTomas"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
Другой фрагмент:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:textSize="50sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour, or randomised words which don't look even slightly believable. If you are going to use a passage of Lorem Ipsum, you need to be sure there isn't anything embarrassing hidden in the middle of text. All the Lorem Ipsum generators on the Internet tend to repeat predefined chunks as necessary, making this the first true generator on the Internet. It uses a dictionary of over 200 Latin words, combined with a handful of model sentence structures, to generate Lorem Ipsum which looks reasonable. The generated Lorem Ipsum is therefore always free from repetition, injected humour, or non-characteristic words etc.
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The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham."/>
</FrameLayout>
</ScrollView>