chank

<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:id="@+id/constraintLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.kliklabs2.sinausqlite.Admin$PlaceholderFragment">

    <TextView
        android:id="@+id/section_label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="20dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:layout_constraintLeft_creator="1"
        tools:layout_constraintTop_creator="1" />

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_marginBottom="20dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="15dp"
        android:layout_weight="1"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/section_label">

        <TableLayout
            android:id="@+id/tableLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/colorPrimary"
            tools:layout_editor_absoluteX="147dp"
            tools:layout_editor_absoluteY="14dp">

            <TableRow
                android:id="@+id/tableHeader"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="1dp"
                android:gravity="center_vertical">

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_weight="0.3"
                    android:text="@string/code"
                    android:textAlignment="center"
                    android:textColor="@android:color/background_light" />

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_weight="0.3"
                    android:text="@string/check_in"
                    android:textAlignment="center"
                    android:textColor="@android:color/background_light" />

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_weight="0.4"
                    android:text="@string/date"
                    android:textAlignment="center"
                    android:textColor="@android:color/background_light" />
            </TableRow>


            <!--<TableRow-->
            <!--android:layout_width="wrap_content"-->
            <!--android:layout_height="wrap_content"-->
            <!--android:layout_margin="1dp"-->
            <!--android:layout_weight="1"-->
            <!--android:background="@android:color/background_light"-->
            <!--android:gravity="center_vertical">-->

            <!--<TextView-->
            <!--android:layout_weight=".3"-->
            <!--android:text="0000"-->
            <!--android:textAlignment="center" />-->

            <!--<TextView-->
            <!--android:layout_weight=".3"-->
            <!--android:text="true"-->
            <!--android:textAlignment="center" />-->

            <!--<TextView-->
            <!--android:layout_weight=".3"-->
            <!--android:text="Dec 31, 2017 12:59:59 PM"-->
            <!--android:textAlignment="center" />-->
            <!--</TableRow>-->


        </TableLayout>
    </ScrollView>
</android.support.constraint.ConstraintLayout>