Coding All-in-One For Dummies, 2nd Edition

Chapter 8

Navigation, Lists, and Other Goodies

IN THIS CHAPTER

Moving from one page to another

Displaying a list of similar items

Creating routes and lists

Grabbing info from the Web

Until now, every sample Flutter app you’ve built has been a single self-contained page. They have some interactivity in the form of buttons and drop-down menus, but they’re each like tiny, deserted islands. Once you’ve walked from one edge of the island to the other, there’s not much else to do and no way to get news from the outside world. Unlike Tom Hanks’s character in Castaway, you can’t even befriend a volleyball.

For the same reasons that being stuck on a deserted island isn’t much fun, apps that are islands aren’t in high demand. In this lesson, you’ll learn to add more complexity and variety to your apps by having multiple screens and by pulling data in from the vast world outside.

Extending a Dart Class

As the example code gets more complex, the code listings in this book can become unbearably long. A simple example to illustrate one new concept may consume several pages. You’d need magic ...