TaskRepository performance improvement
This CL improves Overview's performance by preventing multiple thumbnail and icon fetches for visible tasks. It introduces manual cancellation and removal of tasks that are no longer visible to prevent fetching and listening to changes in such tasks.
- Renamed 'augmentedTasks' to 'tasks' and updated it to be a MutableStateFlow with a map of Task Id and Task.
- When a new task becomes visible, the task is added to a list of requests along with a Job that fetches the Thumbnail and Icon. Additionally, 'taskVisualChangesDelegated' is added and removed for that task per request.
- When a task becomes invisible, the Job is canceled to prevent fetching the Thumbnail and Icon. The thumbnail and icon are cleared from the list of tasks, and the listener from 'taskVisualChangesDelegated' is unregistered.
- The list of tasks is updated when the list of visible tasks changes and a new thumbnail or icon is updated. This list is also updated when a force fresh from getAllTaskData is requested.
Fix: 373361888
Flag: com.android.launcher3.enable_refactor_task_thumbnail
Test: TasksRepositoryTest
Change-Id: Ifd9c54fdfcb85463c043c121fb829dec3e9faedc
12 files changed