What are the use cases for multiple processes in Android?

There are several main scenarios for using multiple processes in Android.

1. Improving application performance: certain time-consuming tasks can be executed in separate processes to avoid blocking the main process, thus enhancing the responsiveness and smoothness of the application.
2. Achieve parallel processing: multiple processes can simultaneously execute different tasks, enabling concurrent processing and enhancing the application’s processing capability.
3. Inter-process communication allows multiple processes to share and interact with data through inter-process communication (IPC), enabling easy data transfer and collaboration between different processes.
4. Improve stability: by placing key modules or services in separate processes, the application can continue to function normally if one process crashes or encounters an issue.
5. Achieving a multi-user environment means that on multiple-user devices, each user can have their own unique process space, providing personalized application environments and data isolation.

Note: Using multiple processes may also incur additional costs, such as memory usage and inter-process communication. Therefore, it is important to carefully weigh the pros and cons when using multiple processes to avoid overuse.