How to make button to fill 50% from the screen width in android?

Question

I want to make the button to fill always 50% from the width of the screen, as when I rotate the device horizontally or vertically always the button fill 50% from the width.

Answer 1

This should be possible by using weightSum and layout_weight:

<LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_height="wrap_content"  android:layout_width="fill_parent"  android:orientation="horizontal"  android:weightSum="1.0">  <Button   android:id="@+id/textbox3"   android:layout_height="wrap_content"   android:layout_weight=".5"   android:layout_width="0dip"   android:textSize="12sp" /> </LinearLayout>