Linear layout of Android

<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"
Xmlns:tools= "Http://schemas.android.com/tools"
Android:layout_width= "Match_parent"
android:layout_height= "Match_parent"
android:orientation= "Vertical"
Tools:context= ". Mainactivity ">


<linearlayout
Android:id= "@+id/textview1"
Android:layout_width= "Fill_parent"
android:layout_height= "Fill_parent"
android:orientation= "Horizontal"
android:layout_weight= "0.5" >
<textview
android:text= "Green"
Android:layout_gravity= "Center_horizontal"
Android:layout_width= "Wrap_content"
android:layout_weight= "1"
android:layout_height= "Fill_parent"
Android:background= "#00aa00"
/>

<textview
android:text= "Blue"
Android:layout_gravity= "Center_horizontal"
Android:layout_width= "Wrap_content"
android:layout_weight= "1"
android:layout_height= "Fill_parent"
Android:background= "#0000aa"
/>

</LinearLayout>
<linearlayout
Android:id= "@+id/textview2"
Android:layout_width= "Fill_parent"
android:layout_height= "Fill_parent"
android:orientation= "Vertical"
android:layout_weight= "1" >
<textview
android:text= "Row One"

Android:layout_width= "Fill_parent"
android:layout_weight= "1"
android:layout_height= "Wrap_content"
Android:background= "#aa0000"
/>

<textview
android:text= "Row"

Android:layout_width= "Fill_parent"
android:layout_weight= "1"
android:layout_height= "Wrap_content"
Android:background= "#aaaa00"
/>

</LinearLayout>

</LinearLayout>

Linear layout of Android