How could I divide a table row into three exact parts?

Question

Here is the XML code for the button part for my table row in a table layout:

<TableRow
    android:id="@+id/tableRow8"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >
    <Button
        android:id="@+id/buttonclear"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Clear" 
        android:layout_weight="1" android:textSize="18sp"/>
    <Button
        android:id="@+id/buttonback"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Back" 
        android:layout_weight="1" android:textSize="18sp"/>
    <Button
        android:id="@+id/buttonconfirm"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Confirm" 
        android:layout_weight="1" android:textSize="18sp"/>

</TableRow>

Without inputting constants dip, how could I divide those button evenly into three? I got no luck in experimenting with the weight though.

Answer 1

You may want to use the android:stretchColumns attribute on the TableLayout. As it is zero-based attribute, it should get the value "0,1,2" in your case.

So your XML should probably look as follows:

<TableLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:stretchColumns="0,1,2">
    <TableRow
        android:id="@+id/tableRow8">
        <Button
            android:id="@+id/buttonclear"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Clear" 
            android:textSize="18sp"/>
        <Button
            android:id="@+id/buttonback"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Back" 
            android:textSize="18sp"/>
        <Button
            android:id="@+id/buttonconfirm"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Confirm" 
            android:textSize="18sp"/>
    </TableRow>
</TableLayout>

Hope it helps.