How to wrap Image buttons in a horizontal linear layout?

You could use FlowLayout for this.

Check this

EDITED

Add the required class, styles and attributes to your project from the link i gave you. And use this layout, by adding it to your layout XML.

---

Mentioned in the Git Project.. Copy all the files from Git Project to your projects

User FlowLayout instead LinearLayout in XML

<com.yourpackage.FlowLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
>
</com.yourpackage.FlowLayout>

And then add your child view in that FlowLayout, may be in XML only or at run time.

Other Parameters supported are :

xmlns:f="http://schemas.android.com/apk/res/your.namespace"
f:horizontalSpacing="6dip"
f:verticalSpacing="12dip"
f:orientation="vertical"
f:layout_horizontalSpacing="32dip"
f:layout_verticalSpacing="32dip"

---

I have added a support to fit the content in a line. Get my github source

To make this work. you need to give one more attribute as fitContent to true for your layout.

f:fitContent="true"

Answer for your Comments

f:verticalSpacing="12dip" - Is used to specify the vertical spacing for the whole FlowLayout. i.e Every child view/button will have the vertical spacing.

Example

 <org.apmem.tools.layouts.FlowLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        f:verticalSpacing="12dip"
    >

</org.apmem.tools.layouts.FlowLayout>

Whereas, f:layout_verticalSpacing="32dip" is specified to a child button as we specify the weight

Example

<Button
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    f:layout_verticalSpacing="32dip"
>
</Button>