Description: TaskStackBuilder is a utility class in Android that facilitates the creation of a task stack for activities. Its main function is to allow developers to build a sequence of activities that stack on top of the task stack, enhancing navigation and user experience. This class is particularly useful in situations where the user is expected to return to a series of activities in a specific order, such as completing a setup process or navigating through a workflow. TaskStackBuilder ensures that when the ‘Back’ button is pressed, the user can logically and smoothly return to the previous activity. Additionally, it is compatible with task management functionalities across various platforms, allowing activities to be displayed correctly in recent tasks views. In summary, TaskStackBuilder is an essential tool for developers looking to improve usability and navigation within their applications, providing a more intuitive and organized experience for users.