Easy way to validate a field entered is an integer?

No, at the moment. Sorry.

Edit:
Ah wait, maybe you can use the number field type. Set number to the type argument in the field definition array instead of text.

Seems like an approach. So I have ‘type’ => ‘text’ but I’m using two fields together. Would I do something like `

array(
‘type’ => ‘text’,
‘type’ => ‘number’,
)`

Or some other way to define the two fields?

Thanks,
David

To mix different field types in a field set, you can do something like this.

array(
    'field_id'          => 'mixed',
    'title'             => __( 'Mixed', 'admin-page-framework-test' ),
    'type'              => 'text',
    array(
        'type'  => 'number',
    ),
),

However, it cannot be used with the sortable and repeatable fields. You may use a section to repeat those.

Closing the topic due to inactivity.

As of v3.8, the inline_mixed field type is supported and it can have multiple field types in one field. Examples is in the demo page accessed via Dashboard -> APF Demo -> Advanced Usage -> Mixed.