Button in the right corner of MapFragment

Question

what I want to do is add Button in the bottom|left corner of MapFragment v2.

The problem is that my MapFragment is inside LinearLayout because there is also AdView below it so I cannot work with PARENT aligns.

My code:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.powa.Activites.MapActivity"
    tools:ignore="MergeRootFrame">

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:layout_weight="1"
    >

    <fragment
        android:id="@+id/map"
        class="com.google.android.gms.maps.MapFragment"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

        <Button
            android:id="@+id/mailBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/map"
            android:layout_alignLeft="@+id/map"
            android:text="MAIL" />
    </RelativeLayout>

<com.google.android.gms.ads.AdView xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:id="@+id/adView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/map"
    android:background="@color/black"
    ads:adSize="SMART_BANNER"
    ads:adUnitId="XOXOXOXO" />

When i use it like that my MapFragment does not appear at all.

Desired look below.

 _____________________
|                    |
|                    |
|                    |
|                    |
|     MapFragment    |
|                    |
|                    |
|                    |
|                    |
| {Button}           |
|____________________|
|                    |
|       AdView       |
|____________________|

Answer 1

Weights work only in Linear-layout , so provide a height and remove weight on map fragment

   <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:layout_weight="1">

    <fragment
        android:id="@+id/map"
        class="com.google.android.gms.maps.MapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

        <Button
            android:id="@+id/mailBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/map"
            android:layout_alignLeft="@+id/map"
            android:text="MAIL" />
    </RelativeLayout>

Answer 2

You could just put everything inside a RelativeLayout , set the AdView to

android:layout_alignParentBottom="true" 

and the MapFragment with

android:layout_above="@+id/adView" 

Answer 3

Try this..

Change your fragment as match_parent and remove android:layout_weight="1"

<RelativeLayout
    android:layout_width="wrap_content"
    android:layout_height="0dp"
    android:layout_weight="1">

<fragment
    android:id="@+id/map"
    class="com.google.android.gms.maps.MapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

    <Button
        android:id="@+id/mailBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/map"
        android:layout_alignLeft="@+id/map"
        android:text="MAIL" />
</RelativeLayout>