Summary

The presentation editor is looking rather powerful with a range of advanced HTML controls, moving far beyond text boxes, date pickers, and color selectors. The preview and overview help the presenter to visualize the entire presentation as they work, thanks to the strong class structure built using Dart mixins and data structures using generics.

We have spent time looking at the object basis of Dart, how to pass parameters in different ways, and, closer to the end user, how to handle keyboard input. This will assist in the creation of many different types of applications, and we have seen how optional parameters and true properties can help document code for ourselves and other developers.

Hopefully, you learned a little about coconuts, too!

The next step for this application is to improve the output with full screen display, animation, and a little sound to capture the audience's attention. The presentation editor could be improved, as well—currently, it is only in the English language. Dart's internationalization features can help with this.