Join Scott Gardner for an in-depth discussion in this video Define and adopt protocols, part of Swift 3 Essential Training: Beyond the Basics.
- [Instructor] I'm going to define some protocols…and types that adopt and conform to the protocols…to create products that I would sell in an online store.…I'll start off by defining a protocol Readable.…I'll define Readable to require properties that…readable media should have, such as a book.…Well first off, if something is readable,…somebody had to write it.…So I'll require readable types to have an author.…Author only requires a getter.…Although a protocol property may be declared…as a variable in the protocol,…a conforming type can implement the property…as a variable or a constant.…
A conforming type is also free to implement…a property requirement of a protocol as a stored…or a computed property as long as it satisfies…the protocols getter and setter requirements.…And it can also include a setter when conforming…to a property that only requires a getter.…Authors only require to have a getter,…which would make it read-only.…But a conforming type can implement author as a variable…that can be changed after initialization too.…
- Adding source files, resources, links, and literals
- Adding pages to a playground
- Using overflow operators and bitwise operators
- Using ranges with strings
- Creating complex sequences
- Chaining higher-order functions
- Defining lazy properties
- Using failable initializers
- Mutating methods
- Working with singletons
- Nesting function types
- Creating error types and recursive enumerations
- Extending concrete types
- Referencing selectors and key paths
- Working with protocol-oriented programming
- Defining class-only protocols and optional protocols
- Using option sets, type checking, and casting operators
Skill Level Intermediate
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Distributing Your iOS App for Testing with TestFlightwith Ron Buencamino35m 10s Intermediate
iOS App Development: Test-Driven Developmentwith Harrison Ferrone2h 14m Intermediate
3. Strings and Characters
4. Sequences and Collections
5. Control Flow
6. Value and Reference Types
9. Access Control
Understand access control3m 47s
Next steps1m 2s
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