Slide 1
Slide 1 text
Custom URL Scheme
Λࢧ͑Δٕज़
#potatotips 53 @giginet
Slide 2
Slide 2 text
୭
• @giginet
• ϞόΠϧج൫ @ Cookpad Inc.
• iOSDCొஃ͠·͢
• ৄղFastfile
•
Slide 3
Slide 3 text
No content
Slide 4
Slide 4 text
No content
Slide 5
Slide 5 text
30Ҏ্ͷURL Scheme
Slide 6
Slide 6 text
• ར༻ՄೳͳSchemeͷҰཡੑ͕͍
• URLதʹؚ·ΕΔจࣈྻQuery Parameterͷ
ύʔε͕໘
Slide 7
Slide 7 text
No content
Slide 8
Slide 8 text
pokedex://pokemons/25
Slide 9
Slide 9 text
let url = URL(string: "pokedex://pokemons/25")!
let components = url.pathComponents
if url.scheme == "pokedex" {
if url.host == "pokemons" {
if components.count == 2, let pokedexID: Int =
Int(components[1]) {
presentPokemonDetailViewController(of: pokedexID)
} else if ( ... ) {
} else {
// ...
}
}
}
Slide 10
Slide 10 text
let url = URL(string: "pokedex://pokemons/25")!
let components = url.pathComponents
if url.scheme == "pokedex" {
if url.host == "pokemons" {
if components.count == 2, let pokedexID: Int =
Int(components[1]) {
presentPokemonDetailViewController(of: pokedexID)
} else if ( ... ) {
} else {
// ...
}
}
}
Slide 11
Slide 11 text
giginet/Crossroad
• URLSchemeΛϧʔςΟϯάͯ͠URL͔Β؆୯
ʹΛऔಘ͢Δͭ
Slide 12
Slide 12 text
import Crossroad
class AppDelegate: UIApplicationDelegate {
let router: DefaultRouter = {
let router = DefaultRouter(scheme: "scheme")
router.register([
("scheme://search", { _ in return true }),
// ...
])
return router
}()
func application(_ app: UIApplication, open url: URL, options:
[UIApplicationOpenURLOptionsKey: Any]) -> Bool {
return router.openIfPossible(url, options: options)
}
}
Slide 13
Slide 13 text
let router = DefaultRouter(scheme: "pokedex")
router.register([
("pokedex://pokemons", { context in
let type: Type? = context.parameter(for: "type")
presentPokedexListViewController(for: type)
return true
}),
("pokedex://pokemons/:pokedexID", { context in
guard let pokedexID: Int = try? context.arguments(for:
"pokedexID") else {
return false
}
guard let pokemon = Pokedex.find(by: pokedexID) else {
return false
}
presentPokemonDetailViewController(of: pokedexID)
return true
}),
])
router.openIfPossible(url)
Slide 14
Slide 14 text
let router = DefaultRouter(scheme: "pokedex")
router.register([
("pokedex://pokemons", { context in
let type: Type? = context.parameter(for: "type")
presentPokedexListViewController(for: type)
return true
}),
("pokedex://pokemons/:pokedexID", { context in
guard let pokedexID: Int = try? context.arguments(for:
"pokedexID") else {
return false
}
guard let pokemon = Pokedex.find(by: pokedexID) else {
return false
}
presentPokemonDetailViewController(of: pokedexID)
return true
}),
])
router.openIfPossible(url)
pokedex://pokemons/25
25
Slide 15
Slide 15 text
public protocol Extractable {
static func extract(from: String) -> Self?
}
extension Int: Extractable {
public static func extract(from string: String)
-> Int? {
return Int(string)
}
}
let pokedexID: Int? = try? context.arguments(for:
"pokedexID")
Slide 16
Slide 16 text
pokedex://pokemons?type=fire
Slide 17
Slide 17 text
enum Type: String, Extractable {
case normal // ϊʔϚϧλΠϓ
case fire // ΄ͷ͓λΠϓ
case water // ΈͣλΠϓ
case grass // ͘͞λΠϓ
// ...
}
Slide 18
Slide 18 text
public extension RawRepresentable where Self: Extractable,
Self.RawValue == String {
public static func extract(from string: String) -> Self? {
return Self(rawValue: string)
}
}
Slide 19
Slide 19 text
// match pokedex://pokemons?type=fire
("pokedex://pokemons", { context in
let type: Type? = context.parameters(for: "type")
// ϙέϞϯҰཡը໘Λදࣔ͢Δ
presentPokemonListViewController(of: type)
return true
})
Slide 20
Slide 20 text
pokedex://pokemons?type=water,grass
Slide 21
Slide 21 text
// pokedex://pokemons?types=water,grass
let types: [Type]? = context.parameters(for: "types")
// [.water, .grass]
Slide 22
Slide 22 text
extension Array: Extractable where Array.Element: Extractable {
static func extract(from string: String) -> [Element]? {
let components = string.split(separator: ",")
return components
.map { String($0) }
.compactMap(Element.extract(from:))
}
}
Slide 23
Slide 23 text
Dynamic Member Lookup
Slide 24
Slide 24 text
@DynamicMemberLookup
• ಈతͳϓϩύςΟੜ͕ՄೳʹͳΔҥߏจ
• Swift 4.2͔Βར༻Մೳ
Slide 25
Slide 25 text
@dynamicMemberLookup
struct Container {
let values: [String: Any]
subscript(dynamicMember member: String) -> T? {
if let value = values[member] {
return value as? T
}
}
}
let container = Container(values: ["name": "Pikachu"])
let name: String = container.name // Pikachu
Slide 26
Slide 26 text
// match pokedex://pokemons/:pokedexID
// before
let pokedexID: Int? = try? context.arguments(for:
"pokedexID")
// after
let pokedexID: Int? = context.arguments.pokedexID
Slide 27
Slide 27 text
@dynamicMemberLookup
public struct ArgumentContainer {
private let arguments: [String: String]
public func fetch(for key: String) throws -> T {
if let argument = arguments[key] {
if let value = T.extract(from: argument) {
return value
}
}
throw Error.parsingArgumentFailed
}
public subscript(dynamicMember member: String) -> T? {
return try? fetch(for: member)
}
}
Slide 28
Slide 28 text
https://techlife.cookpad.com/entry/
2018/06/01/113000
Slide 29
Slide 29 text
࠷ۙ
Slide 30
Slide 30 text
No content
Slide 31
Slide 31 text
·ͱΊ
• େنͳURL SchemeʹCrossroadศར
• Swift 4.2ͷ@DynamicMemberLookup
• OSSͬͯΔͱϩΰ࡞ͬͯ͘ΕΔਓ͕͍ͯ༏͠
͍ੈք
•
⭐͍ͩ͘͞
Slide 32
Slide 32 text
͝ਗ਼ௌ
͋Γ͕ͱ͏͍͟͝·ͨ͠