How to place your ads at the bottom of your screen in Android - mobile

Question

I want to place ad banner startapp at bottom of screen. it keeps appears on the top . i want it to be in the buttom of the screen you find my code down here ..
I am trying to position the ad at the bottom of the screen but nothing I try seems to work.
Below is the XML code for the layout thanks a lot .
<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:background="#mipmap/pictureone"
tools:context="org.sna.myapplication.MainActivity">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:background="#mipmap/pictureone"
android:weightSum="10"
android:clickable="false">
<TextView
android:layout_width="340dp"
android:layout_height="wrap_content"
android:text="click NEXT to start the application"
android:id="#+id/textView3"
android:layout_gravity="center_horizontal"
android:textColor="#ffffff"
android:textSize="30dp"
android:layout_weight="1.58"
android:textAlignment="center" />
<ImageView
android:layout_width="150dp"
android:layout_height="wrap_content"
android:id="#+id/imageView6"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
android:background="#mipmap/oussama"
android:layout_marginTop="1dp"
android:clickable="true"
android:onClick="next" />
</LinearLayout>
<com.startapp.android.publish.ads.banner.Banner
android:id="#+id/startAppBanner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
tools:layout_editor_absoluteY="0dp"
tools:layout_editor_absoluteX="0dp" />
</android.support.constraint.ConstraintLayout>

Answer 1

Place the banner within your LinearLayout
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:background="#mipmap/pictureone"
android:weightSum="10"
android:clickable="false">
<TextView
android:layout_width="340dp"
android:layout_height="wrap_content"
android:text="click NEXT to start the application"
android:id="#+id/textView3"
android:layout_gravity="center_horizontal"
android:textColor="#ffffff"
android:textSize="30dp"
android:layout_weight="1.58"
android:textAlignment="center" />
<ImageView
android:layout_width="150dp"
android:layout_height="wrap_content"
android:id="#+id/imageView6"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
android:background="#mipmap/oussama"
android:layout_marginTop="1dp"
android:clickable="true"
android:onClick="next" />
<com.startapp.android.publish.ads.banner.Banner
android:id="#+id/startAppBanner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
tools:layout_editor_absoluteY="0dp"
tools:layout_editor_absoluteX="0dp" />
</LinearLayout>