Which Android component is responsible for creating a list?

2.1.

Android provides the ListView and the ExpandableListView classes which are capable of displaying a scrollable list of items. The ExpandableListView class supports a grouping of items.

Is there a To Do list on my phone?

So it’s really important that whatever to do list you use works well on your phone, the device you most likely have near you at all times. But Android doesn’t come with any sort of to do list, meaning users have to find something to manage their tasks on their own.