To extend the activity context mock-up process to handle a wider range of Android app features and interactions, developers can implement a more robust context analysis algorithm that can identify and mock up various types of activity contexts beyond just ICC messages. This can include device configuration contexts, global data contexts, and more complex object and bundle type extra parameters. Additionally, integrating natural language processing techniques can help extract context information from app descriptions, user reviews, and other textual sources to enhance the context mock-up process. Furthermore, incorporating automated testing tools that can simulate real user interactions and generate context data dynamically can further expand the capabilities of the activity context mock-up process.