ScrollView inside ConstraintLayout not scrolling entirely to the bottom - android

I had to introduce a ScrollView in my Dialog layout to display all the layout when the phone is in landscape mode or the app is running on small screens. However, the bottom of the layout is being cut off.
I've tried different things like setting ScrollView's layout_height = "0dp", adding more constraints, replacing the ScrollView with a NestedScrollView and other small things as clipToPadding = false or fillViewPort = true but none of these have worked.
This is my layout currently used in a Dialog I need:
<?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:layout_height="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/icon_image_container"
android:layout_width="match_parent"
android:layout_height="80dp"
android:background="#color/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:id="#+id/icon_image"
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#drawable/ic_help_outline_white_24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="ContentDescription" />
</androidx.constraintlayout.widget.ConstraintLayout>
<ScrollView
android:id="#+id/message_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/icon_image_container">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp">
<TextView
android:id="#+id/help_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAlignment="center"
android:textAppearance="#style/TextAppearance.AppCompat.Headline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/help_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:textAlignment="textStart"
android:textAppearance="#style/TextAppearance.AppCompat.Medium"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/help_title" />
<TextView
android:id="#+id/help_example_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:text="#string/help_dialog_example_title"
android:textAlignment="center"
android:textAppearance="#style/TextAppearance.AppCompat.Headline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/help_message" />
<TextView
android:id="#+id/help_example_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:textAlignment="textStart"
android:textAppearance="#style/TextAppearance.AppCompat.Medium"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/help_example_title" />
<Button
android:id="#+id/help_button_ok"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:background="#drawable/button_background"
android:text="#string/help_dialog_button_ok"
android:textAlignment="center"
android:textColor="#color/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/help_example_message" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>
And this is how it's being displayed with the above xml layout. The image is showing the scrollview scrolled to the bottom as far as possible.
I have been stuck on this a lot. Any help would be much appreciated


Change scrollview height to 0dp and constraint it to the bottom of parent it should solve your issue
<?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:layout_height="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/icon_image_container"
android:layout_width="match_parent"
android:layout_height="80dp"
android:background="#color/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:id="#+id/icon_image"
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#drawable/ic_help_outline_white_24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="ContentDescription" />
</androidx.constraintlayout.widget.ConstraintLayout>
<ScrollView
android:id="#+id/message_container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:scrollbars="none"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="#id/icon_image_container">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp">
<TextView
android:id="#+id/help_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAlignment="center"
android:textAppearance="#style/TextAppearance.AppCompat.Headline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/help_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:textAlignment="textStart"
android:textAppearance="#style/TextAppearance.AppCompat.Medium"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/help_title" />
<TextView
android:id="#+id/help_example_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:text="#string/help_dialog_example_title"
android:textAlignment="center"
android:textAppearance="#style/TextAppearance.AppCompat.Headline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/help_message" />
<TextView
android:id="#+id/help_example_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:textAlignment="textStart"
android:textAppearance="#style/TextAppearance.AppCompat.Medium"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/help_example_title" />
<Button
android:id="#+id/help_button_ok"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:background="#drawable/button_background"
android:text="#string/help_dialog_button_ok"
android:textAlignment="center"
android:textColor="#color/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/help_example_message" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>


I post the answer in case anybody encounter the same issue. I just replaced the root layout from ConstraintLayout to LinearLayout with orientation = "vertical" and the same thing for the layout inside the ScrollView.


<?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:layout_height="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/icon_image_container"
android:layout_width="match_parent"
android:layout_height="80dp"
android:background="#color/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:id="#+id/icon_image"
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#drawable/ic_help_outline_white_24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="ContentDescription" />
</androidx.constraintlayout.widget.ConstraintLayout>
<ScrollView
android:id="#+id/message_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/icon_image_container">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp">
<TextView
android:id="#+id/help_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAlignment="center"
android:textAppearance="#style/TextAppearance.AppCompat.Headline" />
<TextView
android:id="#+id/help_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:textAlignment="textStart"
android:textAppearance="#style/TextAppearance.AppCompat.Medium" />
<TextView
android:id="#+id/help_example_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:text="#string/help_dialog_example_title"
android:textAlignment="center"
android:textAppearance="#style/TextAppearance.AppCompat.Headline" />
<TextView
android:id="#+id/help_example_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:textAlignment="textStart"
android:textAppearance="#style/TextAppearance.AppCompat.Medium" />
<Button
android:id="#+id/help_button_ok"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/internal_margin_views"
android:background="#drawable/button_background"
android:text="#string/help_dialog_button_ok"
android:textAlignment="center"
android:textColor="#color/colorPrimary" />
</LinearLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>

Related

Elevation no showing properly on cardview

I have the below xml
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<data></data>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/mainHolder_CL"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/preview_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
app:srcCompat="#color/mcorner_page_background" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/title"
style="#style/HomeScreenTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:text="#string/screen_title_corners"
app:addWindowInsetMarginTop="#{true}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.cardview.widget.CardView
android:id="#+id/cornerPeace"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="30dp"
android:layout_marginTop="35dp"
android:layout_marginEnd="30dp"
android:layout_marginBottom="30dp"
android:background="#android:color/white"
app:cardCornerRadius="10dp"
app:cardElevation="10dp"
app:layout_constraintBottom_toTopOf="#+id/otherCorners"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/title">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="15dp">
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/peaceImg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/ic_bottom_nav_home_new" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="header"
android:textColor="#android:color/black"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/peaceImg" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/desc"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="10dp"
android:text="description"
app:layout_constraintBottom_toTopOf="#+id/separator"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/header" />
<View
android:id="#+id/separator"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginBottom="5dp"
android:alpha="0.1"
android:background="#android:color/black"
app:layout_constraintBottom_toTopOf="#+id/mins"
app:layout_constraintEnd_toEndOf="#+id/desc"
app:layout_constraintStart_toStartOf="#+id/desc" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/mins"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="minutes"
android:textColor="#android:color/black"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/otherCorners"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="30dp"
android:layout_marginEnd="30dp"
android:layout_marginBottom="20dp"
app:addBottomNavigationHeightMarginBottom="#{true}"
app:addWindowInsetMarginBottom="#{true}"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent">
<androidx.cardview.widget.CardView
android:id="#+id/corner1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#android:color/white"
app:cardElevation="10dp"
app:cardCornerRadius="10dp"
app:layout_constraintEnd_toStartOf="#+id/corner2"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp">
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/challengeImg"
android:layout_width="50dp"
android:layout_height="50dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/ic_bottom_nav_home_new" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/challengesTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="corner 1"
android:textSize="13sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/challengeImg" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<androidx.cardview.widget.CardView
android:id="#+id/corner2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
android:layout_marginEnd="15dp"
android:background="#android:color/white"
android:clipToPadding="false"
app:cardElevation="10dp"
app:cardCornerRadius="10dp"
app:layout_constraintEnd_toStartOf="#+id/corner3"
app:layout_constraintStart_toEndOf="#+id/corner1"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp">
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/humourImg"
android:layout_width="50dp"
android:layout_height="50dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/ic_bottom_nav_home_new" />
<androidx.appcompat.widget.AppCompatTextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="corner 2"
android:textSize="13sp"
app:fontFamily="#font/font_regular"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/humourImg" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<androidx.cardview.widget.CardView
android:id="#+id/corner3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#android:color/white"
android:clipToPadding="false"
app:cardElevation="10dp"
app:cardCornerRadius="10dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/corner2"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp">
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/thoughtImg"
android:layout_width="50dp"
android:layout_height="50dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/ic_bottom_nav_home_new" />
<androidx.appcompat.widget.AppCompatTextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="corner 3"
android:textSize="13sp"
app:fontFamily="#font/font_regular"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/thoughtImg" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
This is the output I get
As you see I applied the elevation to corner 1,2 and 3 but it isn't showing properly.
It seems to be getting cut-off. What am I missing here?

I'd debug the "otherCorners" ConstraintLayout.
You seem to have set the margins of that layout in a way to make it equal to the big CardView above it. And since the first and last CardView inside the otherCorners Layout are placed directly against the borders of the parent it prob just cuts off the shadow of the elevation on the sides. Same story, different values, for the bottom.

Android navigation button mess layout even though there is enough space below

When i design the layout the layout looks like this
As you can see there is alot of space left below the buttons but when my app is run the layout looks like this
In the emulator there is no space left at the bottom.I dont know why this is happenin but my space should be there and its not showing in run time.
Here is my layout code
<?xml version="1.0" encoding="utf-8"?>
<androidx.core.widget.NestedScrollView 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">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
tools:context=".MainActivity"
android:background="#android:color/darker_gray"
android:padding="4dp">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rview"
android:layout_width="0dp"
android:layout_height="554dp"
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" />
<EditText
android:id="#+id/insert"
android:layout_width="75dp"
android:layout_height="82dp"
android:layout_marginStart="4dp"
android:ems="10"
android:inputType="number"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/rview"
app:layout_constraintVertical_bias="0.373"
android:hint="#"/>
<EditText
android:id="#+id/remove"
android:layout_width="75dp"
android:layout_height="82dp"
android:layout_marginEnd="132dp"
android:ems="10"
android:inputType="number"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/rview"
app:layout_constraintVertical_bias="0.351"
android:hint="#"/>
<Button
android:id="#+id/button_insert"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:text="insert"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/remove"
app:layout_constraintTop_toBottomOf="#+id/rview"
app:layout_constraintVertical_bias="0.4" />
<Button
android:id="#+id/button_remove"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:text="remove"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/rview"
app:layout_constraintVertical_bias="0.384" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>

Try with the following, it may require little changes.
<?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">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rview"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="#+id/insert"
android:layout_width="75dp"
android:layout_height="82dp"
android:layout_marginStart="4dp"
android:ems="10"
android:hint="#"
android:inputType="number"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.373" />
<EditText
android:id="#+id/remove"
android:layout_width="75dp"
android:layout_height="82dp"
android:layout_marginEnd="132dp"
android:ems="10"
android:hint="#"
android:inputType="number"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.351" />
<Button
android:id="#+id/button_insert"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:text="insert"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/remove"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.4" />
<Button
android:id="#+id/button_remove"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:text="remove"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.384" />
</androidx.constraintlayout.widget.ConstraintLayout>
</LinearLayout>

not all CardViews are elevated

This is the what my activity currently looks like.
I am able to elevate the first two CardView but for the bottom one it is not elevated. I have tried both app:cardElevation and android:elevation but none of the elevates the last card. (by the way what's the difference of these two?)
How can I elevate it?
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/ef_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?android:attr/colorBackgroundFloating"
android:elevation="2dp"
app:contentInsetStart="0dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageButton
android:id="#+id/cancel_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:background="#android:color/transparent"
android:src="#drawable/ic_cancel"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageButton
android:id="#+id/confirm_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:background="#android:color/transparent"
android:src="#drawable/ic_confirm"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.Toolbar>
<android.support.v7.widget.CardView
android:id="#+id/food_image_card"
android:layout_width="180dp"
android:layout_height="180dp"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="20dp"
app:cardElevation="2dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/ef_toolbar">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/food_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/food_image_place_holder" />
<ImageButton
android:id="#+id/camera_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:srcCompat="#drawable/ic_camera" />
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/food_name_card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
app:cardElevation="2dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/food_image_card">
<EditText
android:id="#+id/edit_food_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="15dp"
android:ems="10"
android:hint="Food Name"
android:background="#null"
android:maxLength="50"
android:maxLines="1"
android:inputType="textPersonName"
android:importantForAutofill="no" />
</android.support.v7.widget.CardView>
<TextView
android:id="#+id/tags_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:text="Tags"
android:textSize="16sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/food_name_card_view" />
<ImageButton
android:id="#+id/add_tag_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:background="#android:color/transparent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="#+id/tags_text"
app:srcCompat="#drawable/ic_add_dark" />
<android.support.v7.widget.CardView
android:id="#+id/tag_card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:minHeight="120dp"
app:cardElevation="2dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/tags_text">
<FrameLayout
android:id="#+id/tags_frame"
android:layout_margin="4dp"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.v7.widget.CardView>
<TextView
android:id="#+id/food_note"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:text="Note"
android:textSize="16sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/tag_card_view" />
<android.support.v7.widget.CardView
android:id="#+id/food_note_card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
app:cardElevation="2dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/food_note">
<EditText
android:id="#+id/edit_note"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:ems="10"
android:textSize="16sp"
android:background="#null"
android:minHeight="200dp"
android:gravity="start|top"
android:inputType="textMultiLine"
android:singleLine="false" />
</android.support.v7.widget.CardView>
</android.support.constraint.ConstraintLayout>
</ScrollView>

add
Margin bottom = 10dp to this cardview
android:id="#+id/food_note_card_view"

This can be helpful
app:cardUseCompatPadding="true"
See the Below example
<androidx.cardview.widget.CardView
app:cardBackgroundColor="#FF0000"
app:cardElevation="2dp"
app:cardUseCompatPadding="true"
android:layout_width="match_parent"
android:layout_height="200dp"/>

Cardview not working properly inside Cardview.
Please try to place your cardview into another layout such as FrameLayout or RelativeLayout.

Android studio doesn't draw button correctly

In my Android studio project I have a fragment with constraint layout inside. Here is XML.
<android.support.constraint.ConstraintLayout
android:id="#+id/pinLayout"
android:layout_width="match_parent"
android:layout_height="250dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/topLayout">
<android.support.constraint.ConstraintLayout
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#+id/constraintLayout"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:visibility="visible">
<TextView
android:id="#+id/numberTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:gravity="top"
android:text="00000000"
android:textColor="#color/appTintColor"
android:textSize="18sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
android:id="#+id/constraintLayout2"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.4"
app:layout_constraintStart_toStartOf="parent">
<Button
android:id="#+id/confirmButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/rounded_corner_shape_tint"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:text="Confirm Pin"
android:textColor="#color/appMainColor"
android:textSize="14sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
android:id="#+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#+id/constraintLayout2"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.4"
app:layout_constraintStart_toStartOf="parent">
<LinearLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="#+id/pinView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:gravity="center"
android:text="-"
android:textColor="#color/appTintColor"
android:textSize="36sp" />
<TextView
android:id="#+id/pinView2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:gravity="center"
android:text="-"
android:textColor="#color/appTintColor"
android:textSize="36sp" />
<TextView
android:id="#+id/pinView3"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:gravity="center"
android:text="-"
android:textColor="#color/appTintColor"
android:textSize="36sp" />
<TextView
android:id="#+id/pinView4"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:gravity="center"
android:text="-"
android:textColor="#color/appTintColor"
android:textSize="36sp" />
</LinearLayout>
</android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>
As you can see the confirm button is centered with constraints in his parent.
But when I am running application in my Xperia z5 compact, a layout inspector shows that button is not centered.
Why does it happen and how to fix that?
Note if I am removing numberTextView with it's parent constarintLayout, the problem disappears.
Note In my code I am programmatically setting a text to numberTextView. In case when I am commenting that code i.e not setting text programmatically, button draws correctly.

app:layout_constraintHorizontal_bias="0.5"
layout_constraintHorizontal_bias this will make a small variation from center. try code given below,
<Button
android:id="#+id/confirmButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/rounded_corner_shape_tint"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:text="Confirm Pin"
android:textColor="#color/appMainColor"
android:textSize="14sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />

Remove the below line from your button layout in xml.
app:layout_constraintHorizontal_bias="0.5"
Horizontal Bias:
This allows us to position a view along the horizontal axis using a bias value, this will be relative to it’s constrained position.
For more information about Constraint Layout refer
this article

android:id="#+id/pinLayout" has hight of 250dp that's why button doesn't position at vertically center. try the code given below.
<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">
<android.support.constraint.ConstraintLayout
android:id="#+id/pinLayout"
android:layout_width="match_parent"
android:layout_height="250dp">
<android.support.constraint.ConstraintLayout
android:id="#+id/cl_root"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:visibility="visible">
<TextView
android:id="#+id/numberTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:gravity="top"
android:text="00000000"
android:textColor="#color/appTintColor"
android:textSize="18sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
android:id="#+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintTop_toBottomOf="#id/cl_root"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.4"
app:layout_constraintStart_toStartOf="parent">
<LinearLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="#+id/pinView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:gravity="center"
android:text="-"
android:textColor="#color/appTintColor"
android:textSize="36sp" />
<TextView
android:id="#+id/pinView2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:gravity="center"
android:text="-"
android:textColor="#color/appTintColor"
android:textSize="36sp" />
<TextView
android:id="#+id/pinView3"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:gravity="center"
android:text="-"
android:textColor="#color/appTintColor"
android:textSize="36sp" />
<TextView
android:id="#+id/pinView4"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.25"
android:gravity="center"
android:text="-"
android:textColor="#color/appTintColor"
android:textSize="36sp" />
</LinearLayout>
</android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
android:id="#+id/constraintLayout2"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.4"
app:layout_constraintStart_toStartOf="parent">
<Button
android:id="#+id/confirmButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/rounded_corner_shape_tint"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:text="Confirm Pin"
android:textColor="#color/appMainColor"
android:textSize="14sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>

try to use RelativeLayout instead of ConstraintLayout by changing all ConstraintLayout to RelativeLayout in your xml
<android.support.constraint.ConstraintLayout >
...
Your content
...
</android.support.constraint.ConstraintLayout>
to
<RelativeLayout >
...
Your content
...
</RelativeLayout>
then you might give set your button to be center in parent
android:layout_centerInParent="true"
for your TextView pinView1, pinView2, pinView3 and pinView4 you have simply put it inside a LinearLayout.

placing next button bottom of ConstraintLayout with viewport in scrollview

I'm developing activity drawing view programmatically.
I wanna place 'NEXT' button to bottom of ConstraingLayout in scrollView
so, Adding ViewPort attribute in scrollView.
It's works for me. when there is no scroll.
But,
If ConstraintLayout's height is stretched, It isn't works correctly.
This is parent code using PageIndicatorView and ViewPager.
<?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:attrs="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=".activities.AssetAddActivity">
<com.rd.PageIndicatorView
android:id="#+id/pageIndicatorView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:piv_selectedColor="#79f56e02"
app:piv_unselectedColor="#1ef56e02"
app:piv_viewPager="#id/addAssetViewPager"
attrs:piv_padding="12dp"
attrs:piv_radius="8dp" />
<android.support.v4.view.ViewPager
android:id="#+id/addAssetViewPager"
android:layout_width="0dp"
android:layout_height="0dp"
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" />
</android.support.constraint.ConstraintLayout>
this is my fragment xml
<?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"
android:id="#+id/scrollview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:focusableInTouchMode="true"
android:paddingBottom="50dp">
<Button
android:id="#+id/btn_next"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="50dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:background="#drawable/selector_btn_login"
android:text="#string/button_next"
android:textColor="#color/colorButtonText"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/insert_point"
app:layout_constraintVertical_bias="1.0" />
<TextView
android:id="#+id/txtv_beacon_info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="60dp"
android:gravity="center"
android:text="새로 등록할 대상의 분류\n그리고 ID와 이름을 입력해주세요."
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Spinner
android:id="#+id/spinner"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="40dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="#+id/txtv_title_category"
app:layout_constraintTop_toBottomOf="#+id/txtv_title_category" />
<android.support.design.widget.TextInputLayout
android:id="#+id/textInputLayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="40dp"
android:layout_marginStart="40dp"
android:layout_marginTop="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/spinner">
<android.support.design.widget.TextInputEditText
android:id="#+id/edt_asset_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Asset ID"
android:inputType="text" />
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
android:id="#+id/textInputLayout4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="40dp"
android:layout_marginStart="40dp"
android:layout_marginTop="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textInputLayout">
<android.support.design.widget.TextInputEditText
android:id="#+id/edt_asset_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Asset Name"
android:inputType="text" />
</android.support.design.widget.TextInputLayout>
<LinearLayout
android:id="#+id/insert_point"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:animateLayoutChanges="true"
android:orientation="vertical"
app:layout_constraintEnd_toEndOf="#+id/textInputLayout4"
app:layout_constraintStart_toStartOf="#+id/textInputLayout4"
app:layout_constraintTop_toBottomOf="#+id/textInputLayout4" />
<TextView
android:id="#+id/txtv_title_category"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="44dp"
android:layout_marginTop="60dp"
android:text="#string/txtv_category"
android:textSize="12sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/txtv_beacon_info" />
</android.support.constraint.ConstraintLayout>
and this picture is problem screenshot.
problem screenshot

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