Join Károly Nyisztor for an in-depth discussion in this video Implement the network controller, part of Swift 4: Protocol-Oriented Programming.
- [Instructor] I've gone ahead and created the…open map weather network controller swift file…to save us some time.…I'm going to add it to our project.…I'm going to right click on the networking group,…choose add files to weather app,…then navigate to the addons folder,…and here we have our file.…Let's add it.…Now parsing JSON data is beyond the scope of this course.…
So I implemented a helper method…that decodes and maps the JSON data…to our Swift data structures.…You can see the helper method here on line six.…It is currently commented out,…but we're going to use it later.…Now let's make our open map weather network controller…adopt the network controller protocol.…I'm going to let auto complete add the missing methods.…It's only our fetch current weather data…method as we assumed.…
All right, let's start implementing it.…We'll need a URL session instance first.…So I'm going to create it, let's call it session…equals URL session…and we'll use this initializer.…I pass in a default session configuration.…We don't need the session delegate in this app…
Author
Károly Nyisztor
Released
1/2/2018- Comparing object-oriented programming with protocol-oriented programming
- Methods and class-bound protocols
- Adopting a protocol
- Generics
- Declaring asynchronous behavior
- Preparing and implementing fallback logic
- Implementing an app using protocol-oriented programming
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome1m 3s
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1. Protocol-Oriented Programming
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The object-oriented way7m 28s
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POP vs. OO: The differences3m 50s
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2. Protocols
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What's a protocol?2m 29s
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Adopting a protocol1m 8s
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Polymorphism4m 12s
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Protocol inheritance4m 31s
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Protocol extensions4m 59s
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Protocol composition4m 23s
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3. Generics
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Why generics?1m 31s
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Generic types3m 15s
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Generics and protocols2m 48s
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Constrained associated types2m 51s
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4. Implement the Weather App Using POP
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Weather app design2m 54s
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Project overview1m 53s
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Presenting data4m 18s
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Fallback service3m 24s
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Implement fallback logic4m 3s
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Conclusion
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Next steps45s
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Video: Implement the network controller