Android EditContactActivity source -

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android editcontactactivity contains functionality when + button pressed new field added listview , - button delete field. need exact functionality, not find in android source code.
how extract particular functionality? , if can tell me how understand android source code.

if remember correctly it's not listview @ actually, more like:

<linearlayout>     <scrollview>         <linearlayout>             editors go here         </linearlayout>     </scrollview>     <linearlayout>             buttons , stuff goes here     </linearlayout> </linearlayout>

basically they're adding , removing items in linearlayout @ right position.

if want specifics (complete?) mirror of android repo @ github - contacts app, instance, here: https://github.com/android/platform_packages_apps_contacts


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