android - How to get a TableLayout with 2 columns of equal width -

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why doesn't table have equal column widths? here's complete layout: first table, 2 buttons in linearlayout outside of table, divided equally.

<?xml version="1.0" encoding="utf-8"?> <scrollview xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="wrap_content" >      <linearlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:orientation="vertical" >          <tablelayout             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:padding="4dp" >              <tablerow                 android:layout_margintop="2dp"                 android:gravity="center_vertical" >                 <textview                     style="@style/label.plain"                     android:layout_width="match_parent"                     android:text="@string/caption" />                  <edittext                     android:background="#00ff00"                     android:layout_width="match_parent"                     android:layout_weight="1"                     android:layout_height="@dimen/button_height"                     android:inputtype="numberdecimal"                     android:selectallonfocus="true"                     android:textsize="@dimen/spinner_text" />             </tablerow>         </tablelayout>          <linearlayout             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_margintop="2dp"             android:layout_marginbottom="3dp"             android:gravity="center_vertical"             android:orientation="horizontal" >              <button                 android:id="@+id/btnok"                 style="@style/button.plain.fill"                 android:layout_weight="1"                 android:text="@string/als_ok" />              <button                 android:id="@+id/btnclose"                 style="@style/button.plain.fill"                 android:layout_weight="1"                 android:text="@string/cancel" />         </linearlayout>     </linearlayout>  </scrollview>

and here's how looks (one column painted visibility):

enter image description here

i use linear layout here, want understand logic behind tablelayout.

you can acquire in different ways,

like using 

android:stretchcolumns="*"

in tablelayout or 

android:weightsum="1"

in tablerow , 

 android:layout_width="0dp"   android:layout_height="wrap_content"

in , views in tablerow.

here example 

<?xml version="1.0" encoding="utf-8"?>            <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"         android:orientation="vertical" android:layout_width="match_parent"         android:layout_height="match_parent">         <tablelayout             android:id="@+id/tbltop10list"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:layout_centerinparent="true"             android:layout_margintop="23dp"             android:stretchcolumns="*" >              <tablerow                 android:id="@+id/tablerow1"                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:weightsum="1" >                  <textview                     android:id="@+id/tvtopname"                     android:layout_width="0dp"                     android:layout_height="wrap_content"                     android:paddingleft="8dp"                     android:text="hello there"                     android:textcolor="#fff000"                     android:layout_column="0"                     />                  <textview                     android:id="@+id/tvtopnumber"                     android:paddingleft="4dp"                     android:layout_width="0dp"                     android:layout_height="wrap_content"                     android:textcolor="#fff000"                     android:text="hello there "                     android:layout_column="1"                     />             </tablerow>         </tablelayout>      </linearlayout>

** more info table layout , it's property please check nice article

http://www.informit.com/articles/article.aspx?p=2007353&seqnum=7


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