You can watch this episode by subscribing to Cocoacasts Plus.

Building a Weather Application From Scratch

Adding Pull to Refresh

by Bart Jacobs in Swift

Swift 4 Xcode 9 iOS 11

Building a Weather Application From Scratch

1	Introduction 03:30
2	Setting Up the Project Plus 07:15
3	View Controller Containment Plus 12:08
4	Fetching Weather Data 05:59
5	Removing Object Literals Plus 07:54
6	Creating a View Model Plus 13:09
7	Parsing the JSON Response Plus 13:56
8	Handling Errors and Notifying the User Plus 14:28
9	Adding Flexibility With Protocols Plus 14:11
10	Creating the Day and Week View Models Plus 07:33
11	Creating the User Interface of the Day View Controller Plus 12:52
12	Organizing Fonts and Colors Plus 06:45
13	Implementing the Day View Model 15:55
14	Writing Unit Tests for the Day View Model Plus 12:57
15	Implementing the Week View Model Plus 12:37
16	Writing Unit Tests for the Week View Model Plus 07:10
17	Fetching Weather Data for the User's Location Plus 13:32
18	Increasing Testability With Protocol-Oriented Programming 14:47
19	Replacing Optionals with Enums and Associated Values Plus 09:30
20	Efficiently Refreshing Weather Data Plus 08:48
21	Adding Pull to Refresh Plus 09:40
22	Unit Testing With Mock Objects Plus 10:49
23	Unit Testing Asynchronous Code Plus 06:40
24	Mocking Network Requests Plus 08:28
25	Exposing Gaps in the Test Suite Plus 04:00
26	Filling In the Gaps of the Test Suite Plus 13:16
27	Mocking Network Requests With Mockingjay 07:48

Download Your Free Copy of
The Missing Manual
for Swift Development

The Guide I Wish I Had When I Started Out

Join 20,000+ Developers Learning About Swift Development

Download Your Free Copy

I'd like to give the user the ability to manually refresh the weather data. While this isn't strictly necessary since the application refreshes the weather data every time the application is opened, it gives me the opportunity to show you how to implement pull to refresh, a common design pattern in mobile applications.

Instant and Unlimited Access
to 400+ Cocoacasts Tutorials

Monthly

$19 / month

Pay Once a Month
30 Day Money Back Guarantee

Get Started

Yearly

$8.25 / month (billed annually)

Pay Once a Year and Save $129
30 Day Money Back Guarantee
Access to All Books

Get Started

Building a Weather Application From Scratch

Adding Pull to Refresh

Instant and Unlimited Accessto 400+ Cocoacasts Tutorials

Instant and Unlimited Access
to 400+ Cocoacasts Tutorials