Give all child elements fixed width in Android

Question

How can I give all elements fixed width inside LinearLayout ?Imagine I have a list of buttons and I would to center them all and also give them same width based on the element with the biggest width, is there any way how to make the layout manager to do this dynamically (I mean don't repeat the code for every button)?My code

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:orientation="vertical"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:gravity="center">
    <Button android:id="@+id/mainStageButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:onClick="menuClickListener"
        android:text="@string/mainStage"/>          
    <Button android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:onClick="menuClickListener"
        android:text="@string/amphiteatre"/>    
    <Button android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:onClick="menuClickListener"
        android:text="@string/aula" />
    <Button android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:onClick="menuClickListener"
        android:text="@string/mensa"/>  
    <Button android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:onClick="menuClickListener"
        android:text="@string/sportsSchedule"/> 

Answer 1

Have you consider using a listView? You could achieve the results that you are looking for with a listView with a much cleaner code-base:

List View

Answer 2

You could use a for-loop and loop trough all the Layout's children via view. getChildAt(index) view. getChildAt(index) :)

Answer 3

The most reliable method:

1. Write a custom layout manager

2. Or even easier, pick an existing layout manager that does what you need

In this case TableLayout is a subclass of LinearLayout that already has the right properties.

From the link:

The width of a column is defined by the row with the widest cell in that column

By just replacing the linear layout with this:

<TableLayout 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" >

    <TableRow
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="This is rather long" >
        </Button>
    </TableRow>

    <TableRow
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Medium" >
        </Button>
    </TableRow>

    <TableRow
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Short" >
        </Button>
    </TableRow>
</TableLayout>

The results are like this image: