preparing xml

forxml.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.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"
    tools:context=".MainActivity"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:fillViewport="true">


    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.constraint.Guideline
            android:id="@+id/margin_left1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            app:layout_constraintGuide_begin="15dp" />

        <android.support.constraint.Guideline
            android:id="@+id/margin_left2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.30" />

        <android.support.constraint.Guideline
            android:id="@+id/margin_right1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            app:layout_constraintGuide_end="15dp" />

        <android.support.constraint.Guideline
            android:id="@+id/margin_top"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            app:layout_constraintGuide_begin="15dp" />

        <android.support.constraint.Guideline
            android:id="@+id/margin_header_end"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            app:layout_constraintGuide_begin="60dp" />

        <android.support.constraint.Guideline
            android:id="@+id/main_body_top"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            app:layout_constraintGuide_begin="70dp" />

        <android.support.constraint.Guideline
            android:id="@+id/main_body_left"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            app:layout_constraintGuide_begin="25dp" />

        <android.support.constraint.Guideline
            android:id="@+id/main_body_centre"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.5" />

        <android.support.constraint.Guideline
            android:id="@+id/main_body_right"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            app:layout_constraintGuide_end="25dp" />

        <android.support.constraint.Guideline
            android:id="@+id/margin_bottom"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            app:layout_constraintGuide_end="15dp" />

        <TextView
            android:id="@+id/logo"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/app_name"
            app:layout_constraintLeft_toRightOf="@id/margin_left1"
            app:layout_constraintTop_toBottomOf="@id/margin_top" />

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="@string/mission"
            app:layout_constraintLeft_toRightOf="@id/margin_left2"
            app:layout_constraintRight_toLeftOf="@id/margin_right1"
            app:layout_constraintTop_toBottomOf="@id/margin_top" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="1"
            app:layout_constraintLeft_toRightOf="@id/main_body_left"
            app:layout_constraintTop_toBottomOf="@id/main_body_top" />

        <TextView
            android:id="@+id/emoji"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintLeft_toRightOf="parent"
            app:layout_constraintRight_toLeftOf="parent"
            android:text=""/> 
        
        <TextView
          
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintTop_toBottomOf="@id/emoji"
            android:layout_marginTop="10dp" />
                  
    </android.support.constraint.ConstraintLayout>

</android.support.v4.widget.NestedScrollView>