Develop Reference

ScrollView in a fragment inside ViewPager is not scrolling

I have a tablayout and a viewpager in an activity, inside viewpager I'm displaying a fragment with a scrollview as it's root layout, and for some reason it's not scrolling. I've been trying to make it work for hours, but nothing worked so far, please help.
This is my activity:
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/parent_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".PreferencesActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.MaterialToolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/bg_toolbar_preferences"
android:textAlignment="center"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<TextView
android:id="#+id/toolbar_title"
style="#style/TextAppearance.AppCompat.Widget.ActionBar.Title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/prefs_title"
android:textColor="#android:color/white"
android:textStyle="bold" />
</com.google.android.material.appbar.MaterialToolbar>
<androidx.viewpager.widget.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white"
android:elevation="5dp" />
</androidx.viewpager.widget.ViewPager>
</com.google.android.material.appbar.AppBarLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
And this is my fragment with scroll view:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView 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=".fragmentsPrefsActivity.FragmentAppPrefs">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingLeft="32dp"
android:paddingRight="32dp">
<androidx.cardview.widget.CardView
android:id="#+id/cardView_alerts"
style="#style/app_prefs_cardView">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/textView"
style="#style/app_prefs_text_header"
android:text="Alerts"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.suke.widget.SwitchButton
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
app:layout_constraintBottom_toBottomOf="#+id/textView3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="#+id/textView3"
app:sb_checked="true"
app:sb_checked_color="#color/colorPrefsDark"
app:sb_show_indicator="false" />
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:text="Sound"
android:textColor="#color/textColor"
android:textSize="18sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="#+id/textView"
app:layout_constraintTop_toBottomOf="#+id/textView" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<TextView
android:id="#+id/text_men"
style="#style/app_prefs_description_text"
android:text="#string/prefs_alerts_description" />
<androidx.cardview.widget.CardView
android:id="#+id/cardView_matchMakerOnlyMode"
style="#style/app_prefs_cardView">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.suke.widget.SwitchButton
android:id="#+id/switchButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
app:layout_constraintBottom_toBottomOf="#+id/textView21"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="#+id/textView21"
app:sb_checked_color="#color/colorPrefsDark"
app:sb_show_indicator="false" />
<TextView
android:id="#+id/textView10"
style="#style/app_prefs_text_header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:text="Matchmaker-Only Mode"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/textView21"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:text="Hide My Profile"
android:textColor="#color/textColor"
android:textSize="18sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="#+id/textView10"
app:layout_constraintTop_toBottomOf="#+id/textView10" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<TextView
android:id="#+id/textView11"
style="#style/app_prefs_description_text"
android:text="#string/prefs_match_maker_only_mode_description" />
<androidx.cardview.widget.CardView
android:id="#+id/cardView3"
style="#style/app_prefs_cardView">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/cardView_selectLanguage"
style="#style/app_prefs_text_header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:text="Select Language"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Spinner
android:id="#+id/language_spinner"
style="#style/app_prefs_text"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/cardView_selectLanguage" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<TextView
android:id="#+id/textView17"
style="#style/app_prefs_description_text"
android:text="#string/prefs_select_language_description" />
<androidx.cardview.widget.CardView
android:id="#+id/cardView_enableNotifications"
style="#style/app_prefs_cardView">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/textView18"
style="#style/app_prefs_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:text="Enable notifications from GoGaga"
android:textColor="#151515"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="#+id/btn_go"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/btn_go" />
<Button
android:id="#+id/btn_go"
style="?attr/borderlessButtonStyle"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp"
android:background="#drawable/ripple_btn_go"
android:text="Go"
android:textColor="#color/white"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio=""
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<TextView
android:id="#+id/textView19"
style="#style/app_prefs_description_text"
android:text="#string/prefs_enable_notification_description" />
</LinearLayout>
</ScrollView>

Could you try to get your ViewPager tag outside AppBarLayout
So your activity xml should be like:
<CoordinatorLayout>
<AppBarLayout>
//...
</AppBarLayout>
<ViewPager>
//...
</ViewPager>
</CoordinatorLayout>
and don't forget to add this attribute to your view pager:
app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior"

How do I prevent the keyboard from making my recyclerview items smaller?

So the problem is this. At first it looks good:
But when I open my keyboard the first two items in the way of the keyboard shrink a little bit
This is the XML code of the layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
card_view:cardBackgroundColor="#EFE8E8"
card_view:cardCornerRadius="8dp"
card_view:cardElevation="10dp"
card_view:cardUseCompatPadding="false">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="100dp"
android:orientation="horizontal">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:text="TextView"
android:textSize="20sp"
android:textStyle="bold"></TextView>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:gravity="center_vertical"
android:text="TextView" />
<TextView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:gravity="center_vertical"
android:text="Difficulty" />
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>
And this is the XML code of my activity where the recyclerview is displayed:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
tools:context=".subActivities.CreateWorkoutActivity">
<androidx.appcompat.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginTop="48dp"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.075"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="#+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="36dp"
android:ems="10"
android:inputType="textPersonName"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/textView10"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="68dp"
android:text="TextView"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/editText" />
<ScrollView
android:id="#+id/scrollView3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:maxHeight="220dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/exerciseRecyclerView"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp" />
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/button"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:background="#color/colorAccent"
android:text="Add"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.938"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/floatingActionButton"
app:layout_constraintVertical_bias="0.737" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/floatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:clickable="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/scrollView3"
app:srcCompat="#drawable/add" />
</androidx.constraintlayout.widget.ConstraintLayout>
</LinearLayout>
Is there a way to prevent this?
Thanks for your help

Try this in your activity tag in manifest, add this line:
android:name=".SettingsActivity"
Like:
<activity
android:windowSoftInputMode="adjustPan"
android:name=".MyActivity"/>

Android Constarint Layout ScrollView and Bottom Issue Landscape

I am using constraint layout for my page and it is working good if it in portrait but views are overlapping when it is landscape mode. I have added scroll view also , but still it is overlapping only.I need the card view should be present in the bottom and in landscape mode it should be visible while scrolling... I know the issue is because of that card view (cv_items).I don't know how to fix this issue.
Here is my xml,
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:fillViewport="true"
android:background="#000000"
android:layout_height="match_parent">
<ScrollView
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginBottom="0dp"
app:layout_constraintBottom_toTopOf="#+id/cv_item">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_title"
style="#style/semiBoldTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="#dimen/_20sdp"
android:text="#string/you_got_req"
android:textColor="#color/light3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.cardview.widget.CardView
android:id="#+id/cv_center"
android:layout_width="#dimen/_150sdp"
android:layout_height="#dimen/_150sdp"
android:layout_gravity="center"
android:layout_marginTop="#dimen/_30sdp"
android:orientation="vertical"
app:cardBackgroundColor="#color/light3"
app:cardCornerRadius="#dimen/_150sdp"
app:cardElevation="#dimen/_10sdp"
app:contentPadding="#dimen/_2sdp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/tv_title">
<androidx.cardview.widget.CardView
android:id="#+id/cv_accept"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="#dimen/_10sdp"
app:cardBackgroundColor="#555555"
app:cardCornerRadius="#dimen/_150sdp">
<androidx.appcompat.widget.AppCompatTextView
style="#style/semiBoldTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/accept"
android:textColor="#color/white"
android:textSize="#dimen/_15ssp" />
</androidx.cardview.widget.CardView>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
<androidx.cardview.widget.CardView
android:id="#+id/cv_item"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity="bottom"
android:layout_marginBottom="-25dp"
app:cardCornerRadius="#dimen/_15sdp"
app:layout_constrainedHeight="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHeight_max="#dimen/_200sdp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_order_number"
style="#style/semiBoldTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/_20sdp"
android:layout_marginTop="#dimen/_20sdp"
android:gravity="center_vertical"
android:textColor="#color/black"
android:textSize="16sp"
tools:text="#123456789" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_no_of_items"
style="#style/regularTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/tv_order_number"
android:layout_marginStart="#dimen/_20sdp"
android:layout_marginTop="#dimen/_5sdp"
android:gravity="center_vertical"
android:textColor="#color/gray"
tools:text="6" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_items"
style="#style/regularTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/tv_order_number"
android:layout_alignBaseline="#+id/tv_no_of_items"
android:layout_marginStart="5dp"
android:layout_marginTop="#dimen/_5sdp"
android:layout_toEndOf="#+id/tv_no_of_items"
android:gravity="center_vertical"
android:text="#string/items"
android:textColor="#color/gray"
/>
<androidx.cardview.widget.CardView
android:id="#+id/cv_price"
android:layout_width="#dimen/_50sdp"
android:layout_height="#dimen/_30sdp"
android:layout_alignParentEnd="true"
android:layout_marginTop="#dimen/_10sdp"
android:layout_marginEnd="20dp"
android:gravity="center"
app:cardBackgroundColor="#color/colorPrimaryDark"
app:cardCornerRadius="#dimen/_15sdp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_amount"
style="#style/semiBoldTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:textColor="#color/white"
android:textSize="#dimen/_10ssp"
tools:text="1233 RS" />
</RelativeLayout>
</androidx.cardview.widget.CardView>
<View
android:id="#+id/divider1"
android:layout_width="match_parent"
android:layout_height="#dimen/dp_half"
android:layout_below="#id/tv_items"
android:layout_margin="#dimen/_10sdp"
android:background="#color/light4" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rv_items"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/divider1"
android:layout_marginStart="#dimen/_10sdp"
android:layout_marginEnd="#dimen/_10sdp"
android:layout_marginBottom="#dimen/_20sdp"
tools:itemCount="20"
tools:listitem="#layout/recycler_test_details" />
</RelativeLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>
Please refer the screenshots.

Try to put everything inside ScrollView. Check below:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
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="#000000"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_gravity="bottom"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="20dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toTopOf="#+id/cv_item">
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_title"
style="#style/semiBoldTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="#dimen/_20sdp"
android:text="#string/you_got_req"
android:textColor="#color/light3"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.cardview.widget.CardView
android:id="#+id/cv_center"
android:layout_width="#dimen/_150sdp"
android:layout_height="#dimen/_150sdp"
android:layout_gravity="center"
android:layout_marginTop="#dimen/_30sdp"
android:orientation="vertical"
app:cardBackgroundColor="#color/light3"
app:cardCornerRadius="#dimen/_150sdp"
app:cardElevation="#dimen/_10sdp"
app:contentPadding="#dimen/_2sdp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/tv_title">
<androidx.cardview.widget.CardView
android:id="#+id/cv_accept"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="#dimen/_10sdp"
app:cardBackgroundColor="#555555"
app:cardCornerRadius="#dimen/_150sdp">
<androidx.appcompat.widget.AppCompatTextView
style="#style/semiBoldTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/accept"
android:textColor="#color/white"
android:textSize="#dimen/_15ssp" />
</androidx.cardview.widget.CardView>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.cardview.widget.CardView
android:id="#+id/cv_item"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity="bottom"
android:layout_marginBottom="-25dp"
app:cardCornerRadius="#dimen/_15sdp"
app:layout_constrainedHeight="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHeight_max="#dimen/_200sdp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_order_number"
style="#style/semiBoldTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/_20sdp"
android:layout_marginTop="#dimen/_20sdp"
android:gravity="center_vertical"
android:textColor="#color/black"
android:textSize="16sp"
tools:text="#123456789" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_no_of_items"
style="#style/regularTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/tv_order_number"
android:layout_marginStart="#dimen/_20sdp"
android:layout_marginTop="#dimen/_5sdp"
android:gravity="center_vertical"
android:textColor="#color/gray"
tools:text="6" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_items"
style="#style/regularTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/tv_order_number"
android:layout_alignBaseline="#+id/tv_no_of_items"
android:layout_marginStart="5dp"
android:layout_marginTop="#dimen/_5sdp"
android:layout_toEndOf="#+id/tv_no_of_items"
android:gravity="center_vertical"
android:text="#string/items"
android:textColor="#color/gray"
/>
<androidx.cardview.widget.CardView
android:id="#+id/cv_price"
android:layout_width="#dimen/_50sdp"
android:layout_height="#dimen/_30sdp"
android:layout_alignParentEnd="true"
android:layout_marginTop="#dimen/_10sdp"
android:layout_marginEnd="20dp"
android:gravity="center"
app:cardBackgroundColor="#color/colorPrimaryDark"
app:cardCornerRadius="#dimen/_15sdp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/tv_amount"
style="#style/semiBoldTextInput"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:textColor="#color/white"
android:textSize="#dimen/_10ssp"
tools:text="1233 RS" />
</RelativeLayout>
</androidx.cardview.widget.CardView>
<View
android:id="#+id/divider1"
android:layout_width="match_parent"
android:layout_height="#dimen/dp_half"
android:layout_below="#id/tv_items"
android:layout_margin="#dimen/_10sdp"
android:background="#color/light4" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rv_items"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/divider1"
android:layout_marginStart="#dimen/_10sdp"
android:layout_marginEnd="#dimen/_10sdp"
android:layout_marginBottom="#dimen/_20sdp"
tools:itemCount="20"
tools:listitem="#layout/recycler_test_details" />
</RelativeLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>

how can i remove space between constraintlayout and include layers?

I want to remove white space that I show in picture
Picure
I draw red circle around white space on picture
and I want remove it
I search in stackoverflow but in that case i can not find any anwswer.
My main layout is -->
toolbar_normal.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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<include layout="#layout/city_detail_act"
android:id="#+id/content"/>
<android.support.v7.widget.Toolbar
android:id="#+id/tolbar_storyButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#66cc66"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
>
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:gravity="center"
android:orientation="horizontal"
tools:layout_editor_absoluteX="16dp">
<ImageView
android:id="#+id/imgSetting"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/setting" />
<ImageView
android:id="#+id/imgChoiceCity"
android:layout_width="80dp"
android:layout_height="50dp"
android:layout_marginStart="181dp"
android:layout_marginLeft="181dp"
android:layout_marginTop="3dp"
android:layout_marginEnd="180dp"
android:layout_marginRight="180dp"
android:layout_marginBottom="3dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/choicecity" />
<ImageView
android:id="#+id/imageViewButton"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="8dp"
android:adjustViewBounds="false"
android:scaleType="centerInside"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/home" />
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.Toolbar>
</android.support.constraint.ConstraintLayout>
My second layout is -->
city_detail_act.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:gravity="top"
android:paddingBottom="65dp"
>
<android.support.v7.widget.Toolbar
android:id="#+id/tolbar_story"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#66cc66"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:gravity="center"
android:orientation="horizontal"
tools:layout_editor_absoluteX="16dp">
<ImageView
android:id="#+id/imgTooTitlelbarMainActf"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/adamak" />
<ImageView
android:id="#+id/imgTooTitlelbarMainAct"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginStart="180dp"
android:layout_marginLeft="180dp"
android:layout_marginTop="3dp"
android:layout_marginEnd="181dp"
android:layout_marginRight="181dp"
android:layout_marginBottom="3dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/title" />
<ImageView
android:id="#+id/imgNavigationView"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="8dp"
android:adjustViewBounds="false"
android:scaleType="centerInside"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/dot" />
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.Toolbar>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/tx_state6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" "
android:textSize="15sp"
android:fontFamily="#font/adobearabicregular"
/>
<ImageView
android:id="#+id/imv_refresh2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/tx_state6"
android:layout_centerHorizontal="true"
android:layout_gravity="center"
android:layout_marginTop="40dp"
android:padding="10px"
android:src="#drawable/refresh"
/>
<WebView
android:id="#+id/web2"
android:layout_width="76dp"
android:layout_height="76dp"
android:layout_below="#+id/imv_refresh2"
android:layout_centerHorizontal="true"
android:layout_gravity="center"
>
</WebView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="26dp"
android:layout_marginLeft="13dp"
android:layout_marginRight="13dp"
android:layout_marginBottom="12dp"
android:gravity="right"
android:orientation="horizontal">
<TextView
android:id="#+id/txMore"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="#font/adobearabicbold"
android:text="مشاهده همه..."
android:textSize="12sp"
/>
<TextView
android:id="#+id/txYHinCityDetail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="3dp"
android:fontFamily="#font/adobearabicbold"
android:text="هر آنچه درمورد قم باید بدانید"
android:textSize="24sp" />
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/rvListYH"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v7.widget.RecyclerView
android:id="#+id/rvListBazar"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ProgressBar
android:id="#+id/progressBar66"
style="#android:style/Widget.Holo.ProgressBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/rv_listcity"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:indeterminate="true"
android:visibility="gone" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</LinearLayout>
How can i do it work?
Thank you

Removing the following line parent tag in file city_detail_act.xml should fix it
android:paddingBottom="65dp"
And add these to your include tag
android:layout_width="match_parent"
android:layout_height="match_parent"
Also, consider using Bottom Nav layout for UI like this.

First remove this:
android:paddingBottom="65dp"
Then your include should be like this:
<include
android:id="#+id/content"
layout="#layout/city_detail_act"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#id/tolbar_storyButton"
app:layout_constraintTop_toTopOf="parent" />

constraint layout has extra space at bottom

I am implementing a view which uses constraint layout inside of scroll view. I am trying to align a view to the bottom of parent using app:layout_constraintBottom_toBottomOf="parent However there is extra white space below my view as you can see in the picture. The white space below blue color view. Can someone guide me on how to remove the extra white space at the bottom. Thanks in advance.
here is the code
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:requiresFadingEdge="vertical"
android:fadingEdgeLength="90dp"
android:fadingEdge="vertical"
android:fillViewport="true"
>
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="275dp"
android:scaleType="center"
android:src="#drawable/bubble_exclaimation"
app:layout_constraintBottom_toTopOf="#id/content_layout"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.constraint.ConstraintLayout
android:id="#+id/content_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="#+id/image"
android:background="#android:color/holo_blue_dark"
android:paddingBottom="15dp"
>
<TextView
android:id="#+id/title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="#string/title"
android:textSize="17sp"
app:layout_constraintBottom_toTopOf="#+id/body"
app:layout_constraintLeft_toLeftOf="#+id/left_guideline"
app:layout_constraintRight_toLeftOf="#+id/right_guideline"
app:layout_constraintTop_toBottomOf="parent" />
<TextView
android:id="#+id/body"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="13dp"
android:text="#string/content_small"
android:textSize="12sp"
app:layout_constraintLeft_toLeftOf="#+id/left_guideline"
app:layout_constraintRight_toLeftOf="#+id/right_guideline"
app:layout_constraintTop_toBottomOf="#+id/title" />
<android.support.constraint.Guideline
android:id="#+id/left_guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.11" />
<android.support.constraint.Guideline
android:id="#+id/right_guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.89" />
</android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>
</ScrollView>
<View
android:id="#+id/block"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="10dp"
android:background="#android:color/holo_blue_dark"
app:layout_constraintTop_toBottomOf="#id/scrollView"
app:layout_constraintBottom_toBottomOf="parent"
/>
</android.support.constraint.ConstraintLayout>

Remove app:layout_constraintTop_toBottomOf="#+id/image" from android:id="#+id/content_layout"
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fadingEdge="vertical"
android:fadingEdgeLength="90dp"
android:fillViewport="true"
android:requiresFadingEdge="vertical">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="275dp"
android:scaleType="center"
android:src="#drawable/bubble_exclaimation"
app:layout_constraintBottom_toTopOf="#id/content_layout"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.constraint.ConstraintLayout
android:id="#+id/content_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/holo_blue_dark"
android:paddingBottom="15dp"
app:layout_constraintBottom_toBottomOf="parent">
<TextView
android:id="#+id/title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="#string/title"
android:textSize="17sp"
app:layout_constraintBottom_toTopOf="#+id/body"
app:layout_constraintLeft_toLeftOf="#+id/left_guideline"
app:layout_constraintRight_toLeftOf="#+id/right_guideline"
app:layout_constraintTop_toBottomOf="parent" />
<TextView
android:id="#+id/body"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="13dp"
android:text="#string/content_small"
android:textSize="12sp"
app:layout_constraintLeft_toLeftOf="#+id/left_guideline"
app:layout_constraintRight_toLeftOf="#+id/right_guideline"
app:layout_constraintTop_toBottomOf="#+id/title" />
<android.support.constraint.Guideline
android:id="#+id/left_guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.11" />
<android.support.constraint.Guideline
android:id="#+id/right_guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.89" />
</android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>
</ScrollView>
<View
android:id="#+id/block"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="10dp"
android:background="#android:color/holo_blue_dark"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="#id/scrollView" />
</android.support.constraint.ConstraintLayout>