CODEWITHSUNDEEP
androidandroid-layoutandroid-custom-viewandroid-custom-attributes
Kuno
Kuno

Reputation: 3500

Define custom ViewGroup attributes for children

I am looking for a way to define custom attributes for views that are used by their children. For example layout_centerInParent for children of RelativeLayouts or layout_span for children of TableLayouts.

Upvotes: 6

Views: 1491

Answers (1)

et_l
et_l

Reputation: 1918

Just in case someone else gets here hoping for a direction like I did:

The layout parameters that are defined in the children are used in the parents. For example, layout_centerInParent is used by the RelativeLayout parent to position the child according to its value of this attribute.

In a custom ViewGroup you can create an inner class that extends ViewGroup.LayoutParams. Then you can use XML attributes within the children and retrieve them in the custom layout using the View#getLayoutParams() method.

You can look at this question and its answer.

Upvotes: 13

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