Placing LinearLayout to the bottom of other LinearLayout - android-layout

Question

I am trying to use Caldroid calendar widget and position it to the bottom of the screen. But for some reason it is not going to the bottom and I see some free space below the widget.
Here is my code
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- The main content view -->
<LinearLayout
android:id="#+id/r1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="#+id/lv1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusable="true"
/>
<LinearLayout
android:id="#+id/calendar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
>
</LinearLayout>
</LinearLayout>
<!-- The navigation drawer -->
<ListView
android:id="#+id/left_drawer"
android:layout_width="300dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:dividerHeight="0dp"
android:background="#fff"/>
</android.support.v4.widget.DrawerLayout>
I am replacing calendar1 with the caldroid Fragment programatically.
Below is my screen. Please let me know how I can push the calendar widget to the bottom. I tried layout_weight, layout_gravity but no effect.
(EDIT)With Relative Layout
![<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- The main content view -->
<LinearLayout
android:id="#+id/r1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ListView
android:id="#+id/lv1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusable="true"
/>
<LinearLayout
android:id="#+id/calendar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_alignParentBottom="true"
>
</LinearLayout>
</RelativeLayout>
</LinearLayout>
<!-- The navigation drawer -->
<ListView
android:id="#+id/left_drawer"
android:layout_width="300dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:dividerHeight="0dp"
android:background="#fff"/>
</android.support.v4.widget.DrawerLayout>][2]

Answer 1

I guess if you try this, it will work. Here I'm putting the two lieaner layouts inside a relative layout, so then I can manipulate where they are going to be on the screen.
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- The main content view -->
<RelativeLayout
android:id="#+id/relativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/r1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ListView
android:id="#+id/lv1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusable="true" />
</LinearLayout>
<LinearLayout
android:id="#+id/calendar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_alignParentBottom="true"
>
</LinearLayout>
</RelativeLayout>
<!-- The navigation drawer -->
<ListView
android:id="#+id/left_drawer"
android:layout_width="300dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:dividerHeight="0dp"
android:background="#fff"/>
</android.support.v4.widget.DrawerLayout>
Hope it helps!