How do I create a business card maker and designer android app like lenscard

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XML

Java

Android

Android4x

Hello everyone, I would like to create an Android app where you can create and design an e-business card. I want to create something like Lenscard. The flow would be like "Enter Contact Information" -----> "Select a card template" from a list of templates -----> "Edit or design the card". The edit is the most important part. The user should be able to
1) Drag and drop text views
2) Add Images from Gallery
3) Change fonts and color
4) Add text views or remove them

Please, I would really to know how to achieve this. Thanks

What I have tried:

I have tried researching drag and drop functionality on Android. I have also tried to look for libraries or some sample open source project I can follow.