You can use CoordinatorLayout as your root and NestedScrolView in it .
CoordinatorLayout as root reacts to keyboard and scrolls your layout to the top of your phone with assistant of NestedScrollView which your NestedScrollView includes your layout code .
To put the issue into perspective view
CoordinaterLayout > NestedScrolView > yourLayout
Change your layout XMl like code below
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="@+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/background1"
android:focusable="true"
android:focusableInTouchMode="true"
android:orientation="vertical">
<!-- rest of your layout xml code-->
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
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