When connecting the app to APIs, the topics that we covered in this chapter are just the tip of the iceberg as regards the possibilities. There are endless opportunities available if you wish to extend such an application, from the perspective of the UI to the API extensibility.

First, we can provide an option of deleting or archiving the completed to-do lists. We can also add an option of a pull-to-refresh feature in order to update lists of to-do items. From the point of view of user experience, we can add more interactive controls, such as swiping to the left or right to mark a to-do item as a completed task. The basis of the knowledge that we have built in this chapter will make you familiar with the necessary concepts that are required to take on more complex tasks, which will be faced by us in the next chapter.