Guidance in adding a widget to an existing app

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Bids
8
Avg Bid (USD)
$146
Project Budget (USD)
$30 - $250

Project Description:
I wrote an android app in which the main activity extends a class and implements an interface, I need to add a widget to this app, the code and the layout for the widget are written, all I need from you is an advice on how to get the widget running, the problem is that when there is a widget, the main activity must extend AppWidgetProvider, but my main activity is already extending another class, and since multiple inheritance is not allowed in Java, another approach must be used to add the widget (for example by making the widget an inner class inside the class which was extended by main activity), I need the help of an experienced android developer to guide me through adding the widget to the app.
I may not need you to write the code, I am not willing to provide the source code so mainly i'm paying you for your knowledge, this should be a simple task so please bid accordingly.

Skills required:
Android, Education & Tutoring, Mobile Phone
About the employer:
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