Develop Reference

Layout not scrolling and Views overlapping when Keyboard is shown Android Constraint layout

I have facing an issue, where my login screen is not scrolling and views are overlapping with button when keyboard shows up.
below is the code for Login layout, can somebody help me why views are getting overlapped
i pasted the login layout file here, Linearlayout at the bottom of the layout file is overlapping with Linearlayout defined justabove it , when Keyboard is opened. and the view is not scrolling.
<data>
<!-- databinding data here -->
</data>
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="">
<androidx.constraintlayout.widget.Guideline
android:id="#+id/top_guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.25" />
<ImageView
android:id="#+id/img_logo_login"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="#+id/top_guideline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/txt_title_m_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
app:layout_constraintTop_toBottomOf="#+id/top_guideline" />
<TextView
android:id="#+id/txt_signin_proceed"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/txt_title_m_id" />
<RelativeLayout
android:id="#+id/rl_olk_sign"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="25dp"
android:layout_marginEnd="16dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/txt_signin_proceed">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toStartOf="#+id/txt_olk_sign"
android:src="#drawable/ic_olk" />
<TextView
android:id="#+id/txt_olk_sign"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:padding="10dp"/>
</RelativeLayout>
<TextView
android:id="#+id/txt_no_olk_credentials"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="62dp"
android:layout_marginTop="30dp"
android:layout_marginEnd="62dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/rl_olk_sign" />
<TextView
android:id="#+id/txt_term_login"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="62dp"
android:layout_marginTop="12dp"
android:layout_marginEnd="62dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/txt_no_olk_credentials"/>
<TextView
android:id="#+id/tv_signin_username_pwd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:padding="10dp"
android:layout_marginTop="#dimen/_10dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/txt_term_login"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:lineHeight="21sp"
android:padding="#dimen/_5dp"/>
</RelativeLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/cl_input_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone"
app:layout_constraintTop_toBottomOf="#+id/txt_signin_proceed">
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/input_layout_user_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="10dp"
android:layout_marginEnd="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.appcompat.widget.AppCompatEditText
android:id="#+id/et_input_user_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/input_layout_password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="5dp"
android:layout_marginEnd="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/input_layout_user_name">
<androidx.appcompat.widget.AppCompatEditText
android:id="#+id/et_input_password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPassword"/>
</com.google.android.material.textfield.TextInputLayout>
<LinearLayout
android:id="#+id/rl_sign_in_login"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="#dimen/_20dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="42dp"
android:onClick="#{() -> callback.method2()}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/input_layout_password">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:padding="10dp"
android:gravity="center"/>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
<LinearLayout
android:id="#+id/rl_copy_right"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="#dimen/_5dp"
android:orientation="vertical"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent">
<TextView
android:id="#+id/tv_back_to_signin"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:overScrollMode="always"
android:layout_above="#id/tv_copyright_text"/>
<TextView
android:id="#+id/tv_copyright_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:gravity="center_horizontal"
android:overScrollMode="always"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:visibility="visible" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>

add this adjustResize to the activity tag in your manifest , then your view will shrink if keyboard opens.
<activity
android:name=".Activities.MyActivity"
android:windowSoftInputMode="adjustResize" ----->this tag
/>
and for your scroll it might help but let me know if it didnt , and post some screenshots of how your view looks.

About the constraint layout height

The below picture is the output I wanted to make:
I have already gone through
How to set a view's height match parent in ConstraintLayout?
and
https://developer.android.com/reference/android/support/constraint/ConstraintLayout
What I have done is I have made a constrain layout as the main parent layout and inside that, I had mad a relative layout with the circle as background and Image on top.
And also the rectangular top curved corners one is in the background of a constraint layout. Now what I am not getting is the height of this constraint layout the bottom of this should touch the bottom of the screen but as soon as I declare the height as match parent it occupies the whole screen from top to bottom. Below is my XML code.
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/silver"
tools:context=".ResetPassword">
<RelativeLayout
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginLeft="20dp"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:background="#drawable/circle_shape"
>
<ImageView
android:id="#+id/iv_reset_bck"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:src="#drawable/ic_arrow_back_black_24dp"></ImageView>
</RelativeLayout>
<RelativeLayout
android:id="#+id/rl_reset_topImage"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_marginTop="40dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:background="#drawable/circle_shape">
<ImageView
android:id="#+id/iv_reset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:layout_marginBottom="20dp"
app:srcCompat="#mipmap/ic_launcher_round" />
</RelativeLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:background="#drawable/bg_rectangle"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:paddingRight="5dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="#+id/rl_reset_topImage">
<LinearLayout
android:id="#+id/welcomeLoginLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteY="5dp">
<com.example.portfolio.CustomViews.PopinsBoldTextView
android:id="#+id/tv_welcome"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="43dp"
android:layout_marginLeft="43dp"
android:layout_marginTop="44dp"
android:text="#string/welcome"
android:textColor="#color/black"
android:textSize="26sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.example.portfolio.CustomViews.PopinsBoldTextView
android:id="#+id/tv_logintext_msg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="43dp"
android:layout_marginLeft="43dp"
android:text="#string/loginwith"
android:textColor="#color/black"
android:textSize="20sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</LinearLayout>
<RelativeLayout
android:id="#+id/emailRelativeLayout"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_marginStart="40dp"
android:layout_marginLeft="40dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="40dp"
android:layout_marginRight="40dp"
android:background="#drawable/bg_email_rect"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/welcomeLoginLayout">
<EditText
android:id="#+id/et_email"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="20dp"
android:layout_marginLeft="20dp"
android:layout_marginEnd="20dp"
android:layout_marginRight="20dp"
android:background="#android:color/transparent"
android:hint="#string/prompt_email"
android:paddingTop="5dp"
android:textSize="20sp"
android:paddingBottom="5dp"
android:textColorHint="#color/dark_gey"></EditText>
</RelativeLayout>
<RelativeLayout
android:id="#+id/passwordlRelativeLayout"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_marginStart="40dp"
android:layout_marginLeft="40dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="40dp"
android:layout_marginRight="40dp"
android:background="#drawable/bg_email_rect"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/emailRelativeLayout">
<EditText
android:id="#+id/et_password"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="20dp"
android:layout_marginLeft="20dp"
android:layout_marginEnd="20dp"
android:layout_marginRight="20dp"
android:background="#android:color/transparent"
android:hint="#string/prompt_password"
android:textSize="20sp"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:textColorHint="#color/dark_gey"></EditText>
</RelativeLayout>
<RelativeLayout
android:id="#+id/login_btnLayout"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_marginStart="40dp"
android:layout_marginLeft="40dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="40dp"
android:layout_marginRight="40dp"
android:background="#drawable/bg_btn"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/passwordlRelativeLayout">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Login"
android:textColor="#FFF"
android:textSize="20dp"
android:textStyle="bold"></TextView>
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
This is what I get the output from the above code
How can I make it as the above image?

As mentioned in the comment, you do not need to setup parent Layouts inside ConstraintLayout as ConstraintLayout is pretty powerful and can easily achieve what you want. What you are lacking is good use of constraints, and you are trying to compensate that by using RelativeLayout. Having a ConstraintLayout inside a ConstraintLayout is an overkill.
I have not created the BottomSheet for you ResetPassword, but that is something you can work on yourself as its simply an arrangement of elements or bringing in a customView. My point is to simply use one ConstraintLayout as the parent that will manage all the ViewGroups, and refrain from using any other Layouts inside it.
Design preview
XML Layout file
<?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">
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.25"
tools:srcCompat="#tools:sample/avatars" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="100dp"
android:text="Reset your password"
app:layout_constraintEnd_toEndOf="#+id/imageView2"
app:layout_constraintStart_toStartOf="#+id/imageView2"
app:layout_constraintTop_toBottomOf="#+id/imageView2" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="Reset your password to use app"
app:layout_constraintEnd_toEndOf="#+id/textView"
app:layout_constraintStart_toStartOf="#+id/textView"
app:layout_constraintTop_toBottomOf="#+id/textView" />
<EditText
android:id="#+id/editTextTextPersonName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="100dp"
android:ems="10"
android:inputType="textPersonName"
android:text="Name"
app:layout_constraintEnd_toEndOf="#+id/textView2"
app:layout_constraintStart_toStartOf="#+id/textView2"
app:layout_constraintTop_toBottomOf="#+id/textView2" />
<EditText
android:id="#+id/editTextTextPassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="Password"
android:inputType="textPassword"
app:layout_constraintEnd_toEndOf="#+id/editTextTextPersonName"
app:layout_constraintStart_toStartOf="#+id/editTextTextPersonName"
app:layout_constraintTop_toBottomOf="#+id/editTextTextPersonName" />
<Button
android:id="#+id/button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Button"
app:layout_constraintEnd_toEndOf="#+id/editTextTextPassword"
app:layout_constraintStart_toStartOf="#+id/editTextTextPassword"
app:layout_constraintTop_toBottomOf="#+id/editTextTextPassword" />
</androidx.constraintlayout.widget.ConstraintLayout>

Can I put a Button to bottom of a ConstraintLayout inside ScrollView?

I have a ScrollView contains a ConstraintLayout. Inside the ConstraintLayout, I put many views with an attribute layout_constraintTop_toBottomOf to make a relation between the view and the view top of it, and I used layout_marginTop to put spaces between the views.
In my design, I have a Button that should be in the bottom of the layout and it cannot happen with the layout_marginTop because it should have a relation with the bottom of the ConstraintLayout.
Here's my code:
<ScrollView 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.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="10dp"
android:paddingBottom="10dp">
<TextView
android:id="#+id/logo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_margin="120dp"
android:text="Logo"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="#+id/un_et"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginLeft="28dp"
android:layout_marginTop="25dp"
android:layout_marginRight="28dp"
android:gravity="center"
android:hint="User name"
android:textColor="#bebebe"
android:textCursorDrawable="#null"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#id/logo" />
<EditText
android:id="#+id/pw_et"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginLeft="28dp"
android:layout_marginTop="13dp"
android:layout_marginRight="28dp"
android:gravity="center"
android:hint="Password"
android:inputType="textPassword"
android:textColor="#bebebe"
android:textCursorDrawable="#null"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#id/un_et" />
<RelativeLayout
android:id="#+id/save_pw"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:paddingLeft="28dp"
android:paddingRight="28dp"
app:layout_constraintTop_toBottomOf="#id/pw_et">
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:buttonTint="#bebebe"
android:text="Save account"
android:textColor="#bebebe" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="Forget password?"
android:textColor="#a40000" />
</RelativeLayout>
<Button
android:id="#+id/btn"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginLeft="28dp"
android:layout_marginTop="17dp"
android:layout_marginRight="28dp"
android:text="Login"
android:textAllCaps="false"
android:textColor="#FFFFFF"
app:layout_constraintTop_toBottomOf="#id/save_pw" />
<Button
android:id="#+id/btn2"
android:layout_width="match_parent"
android:layout_height="50dp"
android:text="Sign up"
android:textAllCaps="false"
android:textColor="#FFFFFF"
app:layout_constraintTop_toBottomOf="#id/btn" />
</android.support.constraint.ConstraintLayout>
</ScrollView>

Replace ScrollView with NestedScrollView & also add android:fillViewport="true" like this
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
// rest of code
<Button
android:id="#+id/btn2"
android:layout_width="match_parent"
android:layout_height="50dp"
android:text="Sign up"
android:textAllCaps="false"
android:textColor="#FFFFFF"
app:layout_constraintVertical_bias="1"
app:layout_constraintTop_toBottomOf="#id/btn"
app:layout_constraintBottom_toBottomOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>

Just set this property to your button:
app:layout_constraintBottom_toBottomOf="parent"
Then add this to your last view this property:
app:layout_constraintBottom_toTopOf="#+id/button"
Also, add to your last view:
android:layout_marginBottom="height_of_button"
However, if you are adding a lot of views it would be better to populate them inside a RecyclerView using an Adapter. Decide what you want to do. Also, tell me if I understood your question correctly, it was a bit confusing.

I found one solution to keep the button at the bottom, doesn't matter is your text is dynamic, read about app:layout_constraintVertical_bias https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintLayout#Bias
<?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">
<TextView
android:id="#+id/text_gallery"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:textAlignment="center"
android:textSize="20sp"
android:text="Title"
app:layout_constraintTop_toTopOf="parent"/>
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:fillViewport="true"
app:layout_constraintTop_toBottomOf="#id/text_gallery"
app:layout_constraintBottom_toBottomOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:isScrollContainer="true">
<androidx.appcompat.widget.AppCompatTextView
app:layout_constraintTop_toTopOf="parent"
android:id="#+id/texto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="30sp"
android:text=" Text \n Text" />
<androidx.appcompat.widget.AppCompatButton
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Buton1"
app:layout_constraintVertical_bias="1"
app:layout_constraintTop_toBottomOf="#+id/texto"
app:layout_constraintBottom_toBottomOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>

Set linearLayout margin

I need to fill a LinearLayout (child of a ScrollView) with dynamic TextViews.
The problem is that, in my app, the position where the scroll starts is not defined (it changes dynamically while using the app) and I think I've resolved this with layout_constraintTop_toBottomOf.
The main problem is that I need the ScrollView to end at 90dp from the bottom. But I cannot do that with margins (as in my code below) cause it ignores them.
I've also tried padding but doesn't work too.
This is my solution that doesn't work:
<ScrollView
android:id="#+id/scroll_seguiti"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="90dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/scroll_view">
<LinearLayout
android:id="#+id/linear_view_seguiti"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="90dp"
android:orientation="vertical">
</LinearLayout>
</ScrollView>
I really need that margin cause at the bottom there are some buttons.
As asked, this is my full xml:
<TableLayout
android:id="#+id/tableLayout_seguiti"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="25dp"
android:layout_marginBottom="90dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TableRow
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:text="Cerca utenti da seguire"
android:textSize="20sp" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp">
<EditText
android:id="#+id/edit_search"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:hint="Cerca..." />
</TableRow>
</TableLayout>
<ScrollView
android:id="#+id/scroll"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="90dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/tableLayout_seguiti">
<LinearLayout
android:id="#+id/linear_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
</ScrollView>
<ScrollView
android:id="#+id/scroll_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp"
android:layout_marginStart="10dp"
android:layout_marginBottom="90dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/scroll">
<LinearLayout
android:id="#+id/ln_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_marginBottom="8dp"
android:text="Utenti che segui"
android:textSize="20sp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:text="Clicca sul nome degli utenti che desideri seguire o smettere di seguire."
android:textSize="12sp" />
</LinearLayout>
</ScrollView>
<ScrollView
android:id="#+id/scroll_seguiti"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="90dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/scroll_view">
<LinearLayout
android:id="#+id/linear_view_seguiti"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/btn_mieiPost"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:layout_marginEnd="10dp"
android:layout_marginStart="15dp"
android:text="I miei post"
style="#style/Widget.AppCompat.Button.Colored"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/btn_home"
app:layout_constraintStart_toStartOf="parent" />
<Button
android:id="#+id/btn_seguiti"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:layout_marginEnd="15dp"
android:layout_marginStart="10dp"
android:text="Seguiti"
style="#style/Widget.AppCompat.Button.Colored"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/btn_home" />
<Button
android:id="#+id/btn_home"
android:layout_width="100dp"
android:layout_height="70dp"
android:layout_marginBottom="10dp"
android:layout_marginEnd="20dp"
android:layout_marginStart="20dp"
android:text="Home"
style="#style/Widget.AppCompat.Button.Colored"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/btn_seguiti"
app:layout_constraintStart_toEndOf="#+id/btn_mieiPost"
app:srcCompat="#android:drawable/ic_menu_gallery" />

you need to set margin only for scroll view. Remove the margin from the linear layout.
Add full viewport: true for scroll view.

make height of scrollView match_parent this may help check below
<ScrollView
android:id="#+id/scroll_seguiti"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginEnd="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="90dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#id/scroll_view">
<LinearLayout
android:id="#+id/linear_view_seguiti"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="90dp"
android:orientation="vertical">
</LinearLayout>

Constraint layout scroll to bottom with keypad open

I am using ConstraintLayout to design a sign-up screen. I have put the ConstraintLayout inside a scroll view. The user should be able to scroll and view the whole content even when the keypad is open. This feature works when I am using RelativeLayout but doesn't work when I am using ConstraintLayout. The views which are at the bottom of the screen are being hidden behind the keypad. Following is the layout I am using.
<?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"
android:background="#FFFFFF"
android:paddingTop="23dp"
android:fillViewport="true"
tools:context="com.givhero.activities.LoginActivity">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="bottom"
tools:context="com.givhero.activities.LoginActivity">
<ImageView
android:id="#+id/back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="15dp"
android:src="#drawable/back"
android:tint="#color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="0dp"/>
<TextView
android:id="#+id/regEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:paddingLeft="10dp"
android:text="#string/sign_up_email"
android:textColor="#color/colorPrimary"
android:textSize="#dimen/titles_lists"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/back"
tools:layout_editor_absoluteX="0dp"/>
<TextView
android:id="#+id/nameEditText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="15dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginStart="15dp"
android:layout_marginTop="30dp"
android:background="#android:color/transparent"
android:gravity="left"
android:hint="Name"
android:textColor="#color/dark"
android:textColorHint="#color/dark"
android:textSize="#dimen/base"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/regEmail"
/>
<View
android:id="#+id/nameDivider"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginTop="15dp"
android:background="#color/divider"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/nameEditText"
/>
<EditText
android:id="#+id/emailEditText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="15dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginStart="15dp"
android:layout_marginTop="30dp"
android:background="#android:color/transparent"
android:gravity="left"
android:hint="Email"
android:inputType="textEmailAddress"
android:textColor="#color/dark"
android:textColorHint="#color/dark"
android:textSize="#dimen/base"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/nameDivider"
/>
<View
android:id="#+id/emailDivider"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginTop="15dp"
android:background="#color/divider"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/emailEditText"/>
<Button
android:id="#+id/submitButton"
android:layout_width="0dp"
android:layout_height="62dp"
android:layout_marginEnd="15dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginStart="15dp"
android:layout_marginTop="30dp"
android:background="#drawable/button_theme"
android:enabled="false"
android:text="#string/sign_up"
android:textColor="#FFFFFF"
android:textSize="#dimen/base"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/emailDivider"
/>
<TextView
android:id="#+id/signUpMessage"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_margin="30dp"
android:padding="15dp"
android:text="#string/sign_up_message"
android:textColor="#color/dark80Opacity"
android:textSize="#dimen/medium12"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/submitButton"
/>
</android.support.constraint.ConstraintLayout>
</ScrollView>
I have added the following in Manifest.
<activity android:name=".activities.EmailSignupActivity"
android:screenOrientation="portrait"
android:windowSoftInputMode="adjustResize">
</activity>
Though it doesn't scroll as expected. Following are the screen shots for better understanding
As you can see I have some text below the EditText fields and signup button. What I am expecting is that the user should be able to scroll to the bottom of the page to see that text even if the keyboard is open. Please check the following screenshot when the keypad is open
I am unable to scroll the view when the keyboard is open.
EDIT
Hey,
If anyone is stuck with this issue and landed here for the answer. I could finally find the solution for it. I couldn't figure out the exact reason for this issue but could figure out what is causing the layout not to scroll. Initially, I have been trying to occupy the whole screen including the status bar for design and used the following in oncreate
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
The above line has caused the issue and once I have removed it, I was able to scroll the layout. I would be happy to find the reason why is the layout not scrolling if we occupy the full screen including the status bar for design.

You have to set the windowSoftInputMode on your Activity on your Manifest file.
android:windowSoftInputMode="stateVisible|adjustResize"
(or android:windowSoftInputMode="stateHidden|adjustResize" if you don't want the keyboard to show when you open the activity)
and make your design of the activity to be like that
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.NestedScrollView
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">
/* your elements here */
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.NestedScrollView>
</FrameLayout>

You can use the ConstraintLayout within RelativeLayout to use the ScrollView. Give the fillViewport to ScrollView. I just change your code like I use to do. And you should give marginBottom to scroll when keyboard is on. Try it out. Hope it help.
<?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="#FFFFFF"
android:paddingTop="23dp"
tools:context="com.givhero.activities.LoginActivity">
<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="match_parent"
android:layout_gravity="bottom"
tools:context="com.givhero.activities.LoginActivity">
<ImageView
android:id="#+id/back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="15dp"
android:src="#drawable/back"
android:tint="#color/colorPrimary"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="0dp"/>
<TextView
android:id="#+id/regEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:paddingLeft="10dp"
android:text="#string/sign_up_email"
android:textColor="#color/colorPrimary"
android:textSize="#dimen/titles_lists"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/back"
tools:layout_editor_absoluteX="0dp"/>
<TextView
android:id="#+id/nameEditText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="15dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginStart="15dp"
android:layout_marginTop="30dp"
android:background="#android:color/transparent"
android:gravity="left"
android:hint="Name"
android:textColor="#color/dark"
android:textColorHint="#color/dark"
android:textSize="#dimen/base"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/regEmail"
/>
<View
android:id="#+id/nameDivider"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginTop="15dp"
android:background="#color/divider"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/nameEditText"
/>
<EditText
android:id="#+id/emailEditText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="15dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginStart="15dp"
android:layout_marginTop="30dp"
android:background="#android:color/transparent"
android:gravity="left"
android:hint="Email"
android:inputType="textEmailAddress"
android:textColor="#color/dark"
android:textColorHint="#color/dark"
android:textSize="#dimen/base"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/nameDivider"
/>
<View
android:id="#+id/emailDivider"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginTop="15dp"
android:background="#color/divider"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/emailEditText"/>
<Button
android:id="#+id/submitButton"
android:layout_width="0dp"
android:layout_height="62dp"
android:layout_marginEnd="15dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginStart="15dp"
android:layout_marginTop="30dp"
android:background="#drawable/button_theme"
android:enabled="false"
android:text="#string/signup"
android:textColor="#FFFFFF"
android:textSize="#dimen/base"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/emailDivider"
/>
<TextView
android:id="#+id/signUpMessage"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_margin="30dp"
android:padding="15dp"
android:text="#string/sign_up_message"
android:textColor="#color/dark80Opacity"
android:textSize="#dimen/medium12"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/submitButton"
android:layout_marginTop="8dp"
android:layout_marginBottom="16dp"/>
</android.support.constraint.ConstraintLayout>
</ScrollView>
</RelativeLayout>

Add this in the manifest for your activity.
android:windowSoftInputMode="stateVisible|adjustResize"