Retrieve XML attributes of a view in Android

I'd like to implement a custom Preference with an icon and be able 开发者_如何学Pythonto define the source of the icon in the XML specification of the view. If I do

<com.example.MyIconPreference
    android:src="@drawable/icon1"
    android:key="test_key"
    android:title="@string/pref_title"
    android:summary="@string/pref_summary"
></com.example.MyIconPreference>

How can I retrieve programmatically the drawable resource or identifier?

Thanks

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This is identical to how you can define your custom View and custom View attributes. The mechanism is the same.

You can find an example with View here: Creating Custom Views.

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Define it similar to a custom view and retrieve attributes in you implementation.

This question discuss how to do this for custom views: Declaring a custom android UI element using XML