Prevent AppBarLayout.ScrollingViewBehavior from adding top margin to the view? - android

I'm trying to achieve a layout where my view will extend all the way across the screen, under the ActionBar, and the ActionBar will be transparent. I also need the ActionBar and BottomNavigationView to hide on scroll, so I'm using CoordinatorLayout.
I'm using the AppCompat theme with the attribute <item name="windowActionBarOverlay">true</item> in order to have my views extend under the ActionBar. However, after adding app:layout_behavior="#string/appbar_scrolling_view_behavior" to my container Fragment, the view gets placed below the ActionBar.
Is there a way to prevent this part of the appbar_scrolling_behaviour? I've tried without the behaviour, but the scrolling of the AppBar is not synced witht he RecyclerView scrolling underneath it. Thank you!
Here's a gif of the problem
P.S.: I'm trying to use the Android Navigation Component, so I'm following a single activity, multi fragment architecture, if that matters.

Try this code and make some changes because i used androidx..
make main layout like this way..
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white">
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/white"
android:theme="#style/MyToolbar"
app:contentInsetStart="0dp"
app:contentInsetStartWithNavigation="0dp"
app:titleTextAppearance="#style/MyToolbar">
<ImageView
android:id="#+id/headerIcon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/_6sdp"
android:src="#drawable/ic_edit_location_black"
android:visibility="gone" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/_6sdp">
<TextView
android:id="#+id/header"
style="#style/MyToolbar"
android:layout_width="wrap_content"
android:layout_height="?attr/actionBarSize"
android:gravity="center_vertical"
android:textColor="#color/primary"
app:layout_constraintStart_toStartOf="parent" />
<ImageView
android:id="#+id/ivSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="#dimen/_10sdp"
android:src="#drawable/search_icon"
android:visibility="gone"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.AppBarLayout>
<FrameLayout
android:id="#+id/activity_main_container"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#+id/bottomContainer"
app:layout_constraintTop_toBottomOf="#+id/appBarLayout" />
<RelativeLayout
android:id="#+id/bottomContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bvTabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/Widget.BottomNavigationView"
app:itemIconTint="#drawable/navigation_drawable_tint"
app:itemTextColor="#drawable/navigation_drawable_tint"
app:menu="#menu/bottom_menu_item" />
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

Related

Coordinator layout - collapsing content interaction with recycler view

schema
As shown in the picture, I want my 2 views ( recycler view and collapsing content ) to be responding only to the middle grip bar ( it could be 50dp height constraint layout - for example )
Moving this bar should collapse the upper part - and make recyclerview change its height. The bar shouldn't be able to move lower than the upper part content. Recycler view should be able to scroll independently all the time.
How to make only restricted area respond to touch events?
How to make recyclerview height depend on grip position ?
Now in my case, the collapsing part is getting hidden just after i start scrolling recyclerview.
If there is not enough information, I'll add whatever required.
Code:
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/activityToDo"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.ToDoActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:id="#+id/collapsingToolbar"
app:layout_scrollFlags="scroll|enterAlways"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.constraintlayout.widget.ConstraintLayout
app:layout_collapseMode="parallax"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText
android:hint="Note title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/noteTitle"
app:layout_constraintStart_toStartOf="parent"
android:layout_marginStart="10dp"
app:layout_constraintEnd_toStartOf="#+id/guideline"
android:layout_marginEnd="10dp"
android:layout_marginTop="15dp"
android:textSize="15sp"
android:inputType="text" app:layout_constraintTop_toTopOf="parent"/>
<EditText
android:hint="Note priority"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/notePriority"
app:layout_constraintEnd_toEndOf="parent"
android:layout_marginEnd="10dp"
app:layout_constraintStart_toStartOf="#+id/guideline"
android:layout_marginStart="10dp"
android:layout_marginTop="15dp"
android:textSize="15sp"
android:inputType="number" app:layout_constraintTop_toTopOf="parent"/>
<androidx.constraintlayout.widget.Guideline
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintGuide_begin="197dp"
android:id="#+id/guideline"/>
<EditText
android:hint="Note description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/noteDescription"
app:layout_constraintEnd_toEndOf="parent"
android:layout_marginEnd="10dp"
app:layout_constraintStart_toStartOf="parent"
android:layout_marginStart="10dp"
app:layout_constraintTop_toBottomOf="#+id/notePriority"
android:layout_marginTop="20dp"
android:textSize="15sp"/>
<Button
android:text="Save"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/saveButton"
app:layout_constraintStart_toStartOf="parent"
android:layout_marginStart="10dp"
app:layout_constraintEnd_toStartOf="#+id/guideline" android:layout_marginEnd="10dp"
android:layout_marginBottom="20dp" app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginTop="10dp" app:layout_constraintTop_toBottomOf="#+id/noteDescription"/>
<Button
android:text="Clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/clearButton"
app:layout_constraintEnd_toEndOf="parent"
android:layout_marginEnd="10dp" app:layout_constraintStart_toStartOf="#+id/guideline"
android:layout_marginStart="10dp" android:layout_marginBottom="20dp"
app:layout_constraintBottom_toBottomOf="parent" android:layout_marginTop="10dp"
app:layout_constraintTop_toBottomOf="#+id/noteDescription"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.appbar.CollapsingToolbarLayout>
<TextView
android:text="All notes"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</com.google.android.material.appbar.AppBarLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/allNotesRecyclerView"
android:layout_marginStart="8dp"
app:layout_constraintTop_toTopOf="#id/collapsingToolbar"
android:layout_marginTop="16dp"
android:textSize="15sp"/>
</LinearLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
GitHub Repo
in my case like this :
add app:layout_behavior="#string/appbar_scrolling_view_behavior" on your recyclerview and look my CollapsingToolbarLayout and my Toolbar
<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:id="#+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".myactivity.DetailWisataActivity">
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/app_bar_detail"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:id="#+id/collapse_toolbar_detail"
android:layout_width="match_parent"
android:layout_height="200dp"
android:fitsSystemWindows="true"
app:contentScrim="?colorPrimary"
app:expandedTitleGravity="center_horizontal|bottom"
app:layout_scrollFlags="scroll|snap|exitUntilCollapsed">
<ImageView
android:id="#+id/img_bg_detail"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="#string/app_name"
android:scaleType="centerCrop"
android:src="#drawable/bg_beach"
app:layout_collapseMode="pin"
tools:targetApi="m" />
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorTransparantBlackLow" />
<ProgressBar
android:id="#+id/progress_detail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar_detail"
android:layout_width="match_parent"
android:layout_height="#dimen/actionBarSizeLow"
android:theme="#style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin"
app:title="#string/info_wisata" />
</com.google.android.material.appbar.CollapsingToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>
............Your recyclerview here.......
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
</androidx.coordinatorlayout.widget.CoordinatorLayout>
and remove your Linearlayout.
Fisrt remove your LinearLayout from parent of recyclerview and try this:
<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">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<!-- HEADER -->
<RelativeLayout
...
app:layout_collapseMode="parallax">
.....
</RelativeLayout>
<androidx.appcompat.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin" />
</com.google.android.material.appbar.CollapsingToolbarLayout>
<!-- IF YOU WANT TO KEEP "Choose Item" always on top of the RecyclerView, put this TextView here
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="choose item" />
-->
</com.google.android.material.appbar.AppBarLayout>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Same question answer: Link
With the newest version of Android Studio (4.0 Canary 9), you can use the new MotionLayout layout type to transition between different ConstraintLayouts. The simplest solution (below) wouldn't necessarily let you change the RecyclerView height to whatever you wanted, but you could smoothly transition between two different layouts when the user swipes up or down.
In short, you would do the following:
In your build.gradle (Module: app) file, add the following line:
implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta4'
Create a new ConstraintLayout layout file that determines how all of your views should be arranged at the beginning
Convert that ConstraintLayout to a MotionLayout using the right-click menu in the layout editor
In the MotionLayout editor, add constraints to each view in the "start" and "end" layouts
In the new MotionScene XML file that was added to the XML folder in your res folder, edit the tag to look like this:
<Transition
motion:constraintSetEnd="#+id/end"
motion:constraintSetStart="#id/start"
>
<OnSwipe
app:touchAnchorSide="top"
motion:touchAnchorId="#id/YOUR_GRIP_VIEW"
motion:dragDirection="dragUp" />
<KeyFrameSet>
</KeyFrameSet>
</Transition>
* In the MotionLayout Codelab, it says to use app:touchAnchorID instead of motion:touchAnchorId but that didn't work for me *
Now, when you swipe your grip view up or down, the MotionLayout can transition between states.

Bottom Navigation with fab

I am currently working with BottomNavigationView and FloatingActionButton.
What i want to achieve is this below design:
And what i have tried:
<?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"
app:layout_insetEdge="bottom"
tools:context=".activity.BottomNavPrimary">
<android.support.design.widget.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center|bottom" />
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottomNavPrimary"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:layout_insetEdge="bottom"
android:background="?android:attr/windowBackground"
app:menu="#menu/bottom_nav_primary"></android.support.design.widget.BottomNavigationView>
</android.support.design.widget.CoordinatorLayout>
Your design looks as if you want to use the new BottomAppBar from the MaterialComponents that will fully be release with Android P. Especially if the left icon stands for a kind of side navigation it could be the right navigation element.
However, you have to be aware, that the elements on the left and right of the FAB have a different purpose than a bottom navigation. Instead of being entry points to "primary destinations" in an app, the BottomAppBar is defined as:
A bottom app bar displays navigation and key actions at the bottom of mobile screens.
So it is for page actions (like opening the dashboard or search). More explanation can be found in the design documentation.
I haven't had a chance to implement it yet (because I really needed it with a bottom navigation), but here is the code documentation example:
<android.support.design.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">
<!-- Other components and views -->
<com.google.android.material.bottomappbar.BottomAppBar
android:id="#+id/bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:navigationIcon="#drawable/ic_menu_24"/>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_anchor="#id/bar"/>
</android.support.design.widget.CoordinatorLayout>
So to me, it sounds as if you define your two page menu options and since the FAB is anchored to the bar it will push them to the sides.
The documentation also includes options for the optional FAB cradle that was shown during this year's Google I/O and shows how to handle menu and click handling.
Here is another useful link on how to set up gradle to include the new material components in your project.
I used this, to get something similar.
BottomNavigationView + FloatingActionButton
<androidx.constraintlayout.widget.ConstraintLayout xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/floating_button"
style="#style/Widget.MaterialComponents.FloatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:layout_margin="16dp"
app:backgroundTint="#color/colorPrimaryLight"
app:elevation="#dimen/padding_10"
app:layout_constraintBottom_toTopOf="#id/navigation"
app:layout_constraintLeft_toRightOf="#id/navigation"
app:layout_constraintRight_toLeftOf="#id/navigation"
app:layout_constraintTop_toBottomOf="#id/navigation"
app:layout_constraintTop_toTopOf="#id/navigation"
app:layout_insetEdge="bottom"
app:srcCompat="#drawable/ic_add_black_24dp"
app:tint="#color/colorPrimary" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#color/colorPrimaryDark"
android:visibility="visible"
app:itemIconTint="#drawable/bottom_navigation_icons"
app:itemTextColor="#drawable/bottom_navigation_icons"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="#menu/navigation" />
</androidx.constraintlayout.widget.ConstraintLayout>
My solution simple and cool.
Parent layout must be a CoordinatorLayout and use BottomAppBar with FloatingActionButton as you can see below
<?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">
<-- your other views -->
<com.google.android.material.bottomappbar.BottomAppBar
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:backgroundTint="#color/colorPrimary">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:id="#+id/homePage"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintWidth_percent="0.4">
<androidx.appcompat.widget.AppCompatImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:src="#drawable/your_drawable"
android:padding="#dimen/small_margin"
app:tint="#color/white" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/profile"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintWidth_percent="0.4">
<androidx.appcompat.widget.AppCompatImageView
android:layout_width="wrap_content"
android:padding="#dimen/small_margin"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:src="#drawable/your_drawable" />
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.bottomappbar.BottomAppBar>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/categories"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/your_drawable"
app:backgroundTint="#color/colorPrimary"
app:layout_anchor="#id/navigation"
app:tint="#android:color/white" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Result:
You could wrap your BottomNavigationView and your FloatingActionButton in a ConstraintLayout and use the following constraints on the FloatingActionButton:
app:layout_constraintTop_toBottomOf="#id/bottomNavPrimary"
app:layout_constraintBottom_toTopOf="#id/bottomNavPrimary"
app:layout_constraintLeft_toRightOf="#id/bottomNavPrimary"
app:layout_constraintRight_toLeftOf="#id/bottomNavPrimary"
This will center your FloatingActionButton vertically and horizontally relative to your BottomnavigationView
I hope that is what you asked for.
Final code would look something like this:
<android.support.design.widget.CoordinatorLayout android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.constraint.ConstraintLayout xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#id/bottomNavPrimary"
app:layout_constraintBottom_toTopOf="#id/bottomNavPrimary"
app:layout_constraintLeft_toRightOf="#id/bottomNavPrimary"
app:layout_constraintRight_toLeftOf="#id/bottomNavPrimary"/>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottomNavPrimary"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
app:layout_constraintBottom_toTopOf="parent"
android:background="?android:attr/windowBackground"
app:menu="#menu/bottom_nav_primary" />
</android.support.constraint.ConstraintLayout>
I think you can do this with bottomAppBar and embed some button inside that like below
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.bottomappbar.BottomAppBar
android:id="#+id/bottom_app_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:backgroundTint="#color/colorPrimary"
app:fabAlignmentMode="center"
app:fabAttached="true"
app:fabCradleDiameter="8dp"
style="#style/Widget.MaterialComponents.BottomAppBar"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageButton
android:id="#+id/btnReport"
android:layout_width="0dp"
android:layout_height="match_parent"
android:background="#android:color/transparent"
android:src="#drawable/ic_play"
android:layout_weight="1"
android:paddingRight="20dp"
/>
<ImageButton
android:id="#+id/btnPlayWords"
android:layout_width="0dp"
android:layout_height="match_parent"
android:background="#android:color/transparent"
android:src="#drawable/ic_show_chart"
android:layout_weight="1"
android:paddingLeft="20dp"
/>
</LinearLayout>
</com.google.android.material.bottomappbar.BottomAppBar>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fabAddWord"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_add"
app:layout_anchor="#id/bottom_app_bar" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>

app:elevation="0dp" hide layout inside toolbar

I have take custom layout inside the toolbar and perform action according to it.
but in some case i want make toolbar transparent so when i have set app:elevation="0dp" than it will hide my custom layout but still action will performed when click on that area.
I have used following layout inside toolbar.
Edited
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarMain"
app:elevation="0dp"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:background="#null"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/iv_menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:contentDescription="#null"
android:padding="#dimen/activity_vertical_margin"
android:src="#drawable/ic_menu" />
<FrameLayout
android:id="#+id/frmNotification"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toEndOf="#+id/iv_menu"
android:layout_toRightOf="#+id/iv_menu"
android:background="?attr/selectableItemBackgroundBorderless"
android:clickable="true"
android:padding="#dimen/padding_5">
<ImageView
android:id="#+id/iv_notification"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:contentDescription="#null"
android:padding="#dimen/padding_5"
android:src="#drawable/ic_notification" />
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:layout_marginTop="#dimen/padding_5"
android:background="#drawable/bg_bage">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/eight"
android:textColor="#android:color/white"
android:textSize="#dimen/font_8" />
</FrameLayout>
</FrameLayout>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_toRightOf="#+id/frmNotification"
android:contentDescription="#null"
android:src="#drawable/logo_header" />
<ImageView
android:id="#+id/ivElasticSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:paddingLeft="#dimen/padding_10"
android:paddingRight="#dimen/padding_15"
android:src="#drawable/ic_search" />
</RelativeLayout>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
How to overcome this issue because in some scenario we want transparent toolbar but icon inside it should be display.
Here I have attached image how actually look like.
Your idea of app:elevation="someValue" is wrong, it does not hide the toolbar.The attribute app:elevation is used to show how much you want to make the toolbar or any other view that supports that attribute raised above the surface. Consider the surface as the floor on which the views are placed, now if you want to show some view like toolbar raised to other views you use that attribute.
if you want to make it transparent do it like this.
According to Material Design Guidelines, the elevation for appbar should be 4dp. So you should not set it to 0dp.
Use android:background="#null" instead of app:elevation="0dp".
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarMain"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#null">
EDIT
You want to remove the shadow of the toolbar. To do that use app:elevation="0dp" only for appbar layout. Your code before revision shows you used for both toolbar and appbar. Remove it for toolbar.
UPDATE
I tested the code and the following code seemed to do the work.
<?xml version="1.0" encoding="utf-8"?>
<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:background="#drawable/testbg">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarMain"
app:elevation="0dp"
android:background="#null"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:background="#null"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize">
<!-- Rest of the code -->
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
</RelativeLayout>
OUTPUT IMAGE

Overlay on top of toolbar and fab

I want to achieve the following:
Overlay the whole activity with a LinearLayout that is currently not visible and revealed with a CircularReveal animation. It should then look like this. (Also, the Fab should be hidden beneath the semi transparent background of the overlay.)
The screenshot was taken from Android Studio's preview.
But instead it looks like this when testing on my phone.
The toolbar and the fab are above the overlay. I attached my layout below.
I know, I could also solve this with a new activity that is drawn over the previous one with a transparent theme but I would prefer this method as it is easier to work with in the future.
<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"
tools:context="com.jonas.gimmefood.MapsActivity">
<fragment
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/Theme.gimmefood.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/Theme.gimmefood.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
app:fabSize="normal"
android:elevation="2dp"
app:srcCompat="#drawable/ic_my_location_24dp" />
<!-- This is the overlay -->
<LinearLayout
android:id="#+id/overlay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:visibility="visible">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="#dimen/app_bar_height"
android:background="#color/primary_dark"
android:orientation="vertical"
android:elevation="2dp">
<!-- elevation for the drop shadow -->
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="1">
<android.support.v7.widget.AppCompatEditText
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layout_marginEnd="52dp"
android:layout_marginStart="4dp"
android:hint="#android:string/search_go" />
<android.support.v7.widget.AppCompatImageButton
android:id="#+id/toolbar_close_icon"
style="#style/Widget.AppCompat.Button.Borderless"
android:layout_width="42dp"
android:layout_height="42dp"
android:layout_gravity="end"
android:layout_marginEnd="4dp"
android:background="?selectableItemBackgroundBorderless"
android:src="#drawable/ic_close_24dp" />
</FrameLayout>
horizontal list view with all the circular buttons
...
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/background_transparent"/>
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
I solved it by using PopupWindow (reference here)

RecyclerView cutting off last item

We can see here last item is partially visible. How can i fix this?
layout.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
android:id="#+id/coordinator_layout"
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="wrap_content"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<include
layout="#layout/header"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax"/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>
list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/grey_background">
<ImageView
android:id="#+id/image"
android:layout_width="#dimen/thumbnail_width"
android:layout_height="#dimen/thumbnail_height"
android:layout_gravity="center"
android:adjustViewBounds="true"
android:scaleType="fitCenter"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="#id/image"
android:orientation="vertical"
android:padding="#dimen/participant_left_padding">
<TextView
android:id="#+id/participants_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="name"
android:textColor="#android:color/white"/>
<TextView
android:id="#+id/total_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="view"
android:textColor="#android:color/white"/>
<TextView
android:id="#+id/ranking"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ranking"
android:textColor="#android:color/white"/>
</LinearLayout>
<ImageView
android:id="#+id/overflow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:src="#drawable/ic_action_overflow"/>
</RelativeLayout>
I'm also having the same problem. In my opinion this happened because you set the AppBarLayout XML attribute android:fitsSystemWindows="true". To solve this i give the RecyclerView margin bottom equal to action bar size
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:id="#+id/recyclerView"
android:layout_marginBottom="?attr/actionBarSize">
#Lester was right problem was RecyclerView's wrap_content height. But changing match_parent was not working because. This layout was added to a fragment and that fragment was declared wrap_content. So I have changed fragment's height and recyclerview's height to match_parent and now problem solved.
<fragment
android:id="#+id/fragment"
android:name="com.example.fragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
I had this problem with a RecyclerView inside a ConstraintLayout, and i changed my recyclerview constriants to "0dp" (match_constraint) and had no further trouble.
have a look
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<!-- Title -->
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="#dimen/view_with_press_height"
android:text="#string/taxes_fees_charges"
android:gravity="center_vertical"
android:layout_marginStart="#dimen/general_side_margin"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
<!-- Details Recyclerview-->
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/title"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginBottom="#dimen/general_bottom_margin"
app:layout_constraintVertical_bias="0.0"
tools:itemCount="28"
tools:listitem="#layout/tax_details_row" />
</android.support.constraint.ConstraintLayout>
if you want to use the tools:itemCount="28" you will have to import xmlns:tools="http://schemas.android.com/tools" in your XMLfile.
I tried all the available option from most of possible site but I didn't get the solution.
Then, I think can I use bottom padding? And Yes, It's work for me.
I am sharing the code to you.
Nothing more attribute required other than height, width & padding.
android:paddingBottom="?attr/actionBarSize"
<android.support.v7.widget.RecyclerView
android:id="#+id/your id name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="?attr/actionBarSize"
app:layout_constraintTop_toBottomOf="#+id/your field" />
Use RelativeLayout instead of ConstraintLayout.It's working for me.
I'm showing some solution but didn't work
Now I find one easy solution for this cutting off the last item in recycler view
Add your recycler view into LinearLaout
After adding recycler view into Linearlayout add these two Attributes into recycler view.
android:paddingBottom="?attr/actionBarSize"
android:clipToPadding="false"
Now, Your Recyclerview looks like this,
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rvQuotes"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="#dimen/_10sdp"
android:layout_marginEnd="#dimen/_10sdp"
android:background="#color/white"
android:paddingBottom="?attr/actionBarSize"
android:paddingTop="#dimen/_10sdp"
android:clipChildren="false"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
tools:listItem="#layout/item_dessert"
android:clipToPadding="false"/>
Easiest but not the best solution. Still works;
Return +1 in the getItemCount() method of your RecyclerView.Adapter implementation and wrap your code in onBindViewHolder method override with a try-catch block.
For others.Disabling nested scrolling in recyclerview also causes this problem in CoordinatorLayout with scrollable toolbar or tablayout. Because when you scroll recyclerview, toolbar or tablayout doesn't scroll.
don't align recyclerview with respect to any view.. simply make it match parent and provide margin from top....this worked for me
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerViewAddresses"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
android:layout_marginTop="#dimen/dimen_120dp"
/>

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