I have a layout as such;
<androidx.constraintlayout.motion.widget.MotionLayout
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/motion_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
android:orientation="vertical"
app:layoutDescription="#xml/motion_layout_details">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#color/white"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:navigationIcon="#drawable/ic_back"
app:title="ToolbarTitle" />
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/image"
android:layout_width="0dp"
android:layout_height="244dp"
android:scaleType="fitXY" />
<com.google.android.material.tabs.TabLayout
android:id="#+id/tl_menu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="2dp"
app:tabIndicator="#null"
app:tabMode="scrollable"
app:tabRippleColor="#null" />
<androidx.viewpager.widget.ViewPager
android:id="#+id/vp_menu"
android:layout_width="0dp"
android:layout_height="0dp" />
</androidx.constraintlayout.motion.widget.MotionLayout>
With identical viewpager items that contain a recyclerview;
<androidx.constraintlayout.widget.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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white"
android:orientation="vertical"
android:paddingTop="#dimen/spacing_16dp">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerview"
android:layout_width="0dp"
android:layout_height="0dp"
android:clipToPadding="false"
android:orientation="vertical"
android:paddingBottom="#dimen/spacing_24dp"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>
I have a motion scene that collapses the image when scrolled up (the configurations for this are correct). If in my viewpager items I wrap my RecyclerView in a nestedscrollview my transition -
<Transition
app:constraintSetEnd="#+id/end"
app:constraintSetStart="#+id/start"
app:duration="500"
app:motionInterpolator="linear">
<OnSwipe
app:dragDirection="dragUp"
app:touchAnchorId="#+id/vp_menu"
app:touchAnchorSide="top" />
</Transition>
Works just fine, and transitions as I'd expect. But removing that nested scrollview no longer triggers the motion layout at all. I've dug around for a good couple of hours and can't seem to find any explanation. I could put the nestedscrollview back in, but ideally I'd like to leave it out as A) it's not needed and B) breaks some stickheader stuff I'm using.
UPDATE
Fixed this as per my comment. .isNestedScrollingEnabled = false stops the recyclerview communicating with the motionlayout.
Turns out, from when I had my recyclerview in a nestedscrollview I had rv?.isNestedScrollingEnabled = false which must be stopping some kind of trigger for the motionlayout. Removing this has fixed the issue and works with the above code.
Related
My activity is something like
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:background="#E7E7E7"
app:layout_constraintBottom_toTopOf="#+id/dummy"
app:layout_constraintTop_toTopOf="parent">
<include
android:id="#+id/bottomSheet"
layout="#layout/bottom_sheet_persistent" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
<View
android:id="#+id/dummy"
android:background="#F44336"
android:layout_width="match_parent"
android:layout_height="80dp"
app:layout_constraintBottom_toBottomOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
And the bottom sheet is as bottom_sheet_persistent.xml
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/bottomSheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:behavior_hideable="false"
app:behavior_peekHeight="80dp"
app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior">
<View
android:layout_width="match_parent"
android:layout_height="400dp"
android:background="#2196F3"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
The screenshot is
As you can understand from the xml that, the red part is just a static view and blue is the bottomsheet. The bottomsheet also works as expected. What I wanted to achieve is, when the user start scrolls from the static view (Red View), I would like to scroll up the bottomsheet.
Thanks in advance.
I have this layout for my activity which uses multiple fragments that have RecyclerView in it. The FrameLayout here is the container for the fragments. The problem is that, although I set my FrameLayout's bottom to the top of BottomNavigationView, last element of RecyclerView gets hidden under BottomNavigationView.
My code for activity layout:
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ToolbarTheme"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:logo="#drawable/money_icon"
/>
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/toolbar"
app:layout_constraintBottom_toTopOf="#+id/bottomNavigationView"/>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNavigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="#menu/bottom_nav_menu" />
Code for fragment includes RecyclerView:
<androidx.constraintlayout.widget.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:background="#color/dark_gray"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/finishedSlipsRecycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
</androidx.recyclerview.widget.RecyclerView>
Screenshot of the problem:
Obviously the issue is because of this line:
app:layout_behavior="#string/hide_bottom_view_on_scroll_behavior"
Just remove it and everything will be fine.
EDIT:
Replace your ConstraintLayout in
Code for fragment includes RecyclerView:
by FrameLayout since it only contains one element. I think there's a problem with putting the ConstraintLayout inside FrameLayout like this.
The problem actually raised due to RecyclerView flows over FrameLayout. The better definition and the answer of the problem can be found here
I have a recyclerview inside a nestedScrollView and I have stopped the scrolling of recyclerview to allow nestedScrollView to scroll all the page, but the nestedScrollView is not working.
I have set the nestedScrollingEnabled of the recyclerview to false
I have tried to add a hidden view under the recyclerview but it has shown on top of the bottom items of recyclerview
My layout xml file code is:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android">
<data>
<variable
name="viewModel"
type="com.accad.accadgame.viewmodels.profile.ProfileViewModel" />
</data>
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/circleImageView"
android:layout_width="75dp"
android:layout_height="0dp"
android:layout_marginStart="#dimen/default_dim"
android:layout_marginTop="#dimen/default_xxdim"
android:layout_marginEnd="#dimen/default_dim"
android:src="#drawable/profile"
app:layout_constraintDimensionRatio="h,1:1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/profile_name"
style="#style/HeadlineTextViewActiveStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/default_dim"
android:layout_marginStart="#dimen/default_dim"
android:layout_marginEnd="#dimen/default_dim"
android:text="#{viewModel.profileName}"
app:layout_constraintEnd_toEndOf="#+id/circleImageView"
app:layout_constraintStart_toStartOf="#+id/circleImageView"
app:layout_constraintTop_toBottomOf="#+id/circleImageView"
tools:text="#tools:sample/lorem" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/profile_details_list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="#dimen/default_xxdim"
android:clipToPadding="false"
android:paddingBottom="#dimen/default_dim"
android:paddingStart="#dimen/default_dim"
android:nestedScrollingEnabled="false"
app:layout_constraintBottom_toBottomOf="parent"
android:focusable="false"
app:layout_constraintTop_toBottomOf="#id/profile_name"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>
After many tries, I've found the solution
which is to change the recyclerView's height to be wrap_content instead of match_parent or 0dp so the recyclerView would be like this:
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/profile_details_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/default_xxdim"
android:clipToPadding="false"
android:paddingBottom="#dimen/default_dim"
android:paddingStart="#dimen/default_dim"
android:nestedScrollingEnabled="false"
app:layout_constraintBottom_toBottomOf="parent"
android:focusable="false"
app:layout_constraintTop_toBottomOf="#id/profile_name"
/>
Put your static content as the first item in the RV.
I know this might sound bad but trust me, it's so much better than having a nested RecyclerView.
This will fix recycling, scrolling, dragging and so many other issues with nested RV.
i have this issue where my recyclerview does not do nestedscrolling on api 19 (lollipop) ...on latest version of android its ok.
using following dependency: com.android.support:design:26.1.0
and what i have created is a recyclerview that should have a sticky header. the header is in a cardview and the list items are below the cardview. it looks like this:
detailscreen.xml:
<!--wrapping in RelativeLayout until this is resolved: https://stackoverflow.com/questions/57142959/why-latest-version-constraintlayout-doesnt-work-in-nestedscrollview-with-coordi-->
<RelativeLayout 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">
<androidx.cardview.widget.CardView
android:id="#+id/headerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="4dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp">
<TextView
android:id="#+id/tv_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="#string/ride_hail_meet_at"
android:textColor="#388bf2"
app:layout_constraintBottom_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rv_weatherdata"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:focusable="false"
android:focusableInTouchMode="false"
android:nestedScrollingEnabled="false"
android:orientation="horizontal"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintLeft_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#id/tv_description"
tools:itemCount="3"
tools:listitem="#layout/weather_data_row_item"
tools:visibility="visible" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<RelativeLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/headerView"
android:layout_alignParentBottom="true"
android:background="#color/white">
<!-- THIS IS THE RECYCLERVIEW GIVING ME THE PROBLEMS. ITS NOT SCROLLING ON API 19 , WHY ??? -->
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rv_directions"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="16dp"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
tools:itemCount="5"
tools:listitem="#layout/ride_direction_row" />
</RelativeLayout>
when i inflate this thing its placed inside a CoordinatorLayout customView. that container itself can be scrolled. What am i doing wrong that it works on recent versions of android but not lollipop ? i even tried using a appBarLayout and putting my headerView in that but same thing just on older version of android, not working. im open to changing the xml entirely if you can suggest a better approach ?
note: setting android:nestedScrollingEnabled = false is going to cause my recyclerView not to recyclerviews. i have big images in the list so i need this feature.
You'd have to set android:layout_height to match_parent or a fixed size.
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent" />
If you set it to wrap_content it'll expand to the size of its content and thus not scroll.
so odd this is the only way i could get it resolved:
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleGravity="bottom"
app:expandedTitleMarginEnd="#dimen/activity_horizontal_margin"
app:expandedTitleMarginStart="#dimen/activity_horizontal_margin"
app:layout_scrollFlags="noScroll"
app:title="#string/app_name">
<ImageView
android:id="#+id/toolbar_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:contentDescription="#null"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
android:src="#drawable/beach_huts" />
</com.google.android.material.appbar.CollapsingToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
so strange this works for everything ..thanks everyone. they key thing is i need to put the recyclerView FIRST above everything else. then define the appbar stuff afterwards.
I have an app with the one Activity, many Fragments model, where several Fragments have a RecyclerView to show cards with content. I also have implemented the BottomAppBar from Material Design 2.0, and everything is fine except when the AppBar blocks the last CardView in the RecyclerView.
In terms of layout, I have a RecyclerView inside ConstraintLayout inside a Fragment, which sits in a FrameLayout in the main activity.
The documentation shows that for the BottomAppBar to be hidden on Scroll, we need to implement RecyclerView inside a NestedScrollView. There is one question here on SO where the answer has stated the same as well, but there seems to be no actual documentation or examples to demonstrate how this is to be done, except for this article on Medium, which uses the NestedScrollView in an Activity directly, holding a CoordinatorLayout which holds a ConstraintLayout.
Note: I think it also works on magic, because duplicating the layout in my fragment doesn't have any effect at all in my app.
How do I use NestedScrollView here?
PS : I need to have the TextView, as I set the RecyclerView to VISIBILITY.GONE and set the TextView to VISIBLE when I have no data to display.
Fragment Layout
<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/constraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="in.domain.APPNAME.Fragments.FragmentList">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerViewIncident"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingBottom="30dp"
android:visibility="visible"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
<TextView
android:id="#+id/emptyView"
android:layout_width="wrap_content"
android:layout_height="17dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="No Incidents to display"
android:visibility="visible"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.503"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
Activity Layout
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.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:id="#+id/uberLayout"
tools:context=".APPNAME">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/containerFrameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
</android.support.constraint.ConstraintLayout>
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.bottomappbar.BottomAppBar
android:id="#+id/bottom_app_bar"
style="#style/Widget.MaterialComponents.BottomAppBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:backgroundTint="#color/colorPrimary"
app:fabAlignmentMode="center"
app:navigationIcon="#drawable/baseline_menu_white_24dp"
app:hideOnScroll="true"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
</android.support.design.bottomappbar.BottomAppBar>
<android.support.design.widget.FloatingActionButton
android:id="#+id/floatingActionButton"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:clickable="true"
android:src="#drawable/baseline_add_white_24dp"
app:backgroundTint="#color/brightred"
app:fabSize="normal"
app:layout_anchor="#+id/bottom_app_bar"
tools:layout_editor_absoluteX="160dp"
tools:layout_editor_absoluteY="465dp" />
</android.support.design.widget.CoordinatorLayout>
</android.support.design.widget.CoordinatorLayout>
you shouldn't put the BottomAppBar and the FloatingActionButton in a separate CoordinatorLayout. Ditch the CoordinatorLayout they're in, the ConstraintLayout around your FrameLayout and that may already solve the problem.
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.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:id="#+id/uberLayout"
tools:context=".APPNAME">
<FrameLayout
android:id="#+id/containerFrameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
<android.support.design.bottomappbar.BottomAppBar
android:id="#+id/bottom_app_bar"
style="#style/Widget.MaterialComponents.BottomAppBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:backgroundTint="#color/colorPrimary"
app:fabAlignmentMode="center"
app:navigationIcon="#drawable/baseline_menu_white_24dp"
app:hideOnScroll="true"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.design.widget.FloatingActionButton
android:id="#+id/floatingActionButton"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:src="#drawable/baseline_add_white_24dp"
app:backgroundTint="#color/brightred"
app:fabSize="normal"
app:layout_anchor="#+id/bottom_app_bar" />
</android.support.design.widget.CoordinatorLayout>
I'm using a similar layout, the only difference being a <fragment> instead of a <FrameLayout>, and the BottomAppBar hides on scroll just fine. We don't need to use a NestedScrollView, if our scrolling content is a RecyclerView anyway, because RecyclerView implements NestedScrollingChild.
This interface should be implemented by View subclasses that wish to support dispatching nested scrolling operations to a cooperating parent ViewGroup.