I have developed a framework for Android apps and platform security evaluation and exploitation.
The framework is named as Android Framework for Exploitation or AFE.
Using it, you could find vulnerabilities in applications such as Leaking Content Providers, Insecure File Storage, Directory Traversal and many more.
You could also use it to create automated malwares and botnets for Android Platform for your analysis, which you could even use to check the effeciency of your Antivirus.
The framework is written in complete Python, and is extendible. So, you could add your modules, or port any existing tools, and integrate with AFE.
For any bugs/issues, you could post on the Github page or comment below here.