Mobile Programming Protocol

Mobile Programming の授業で使うスライドです

Transcript

1. PROTOCOL MOBILE PROGRAMMING JAN 21ST
2. 1. PROTOCOLͱ͸
3. ςΩετ PROTOCOL(ϓϩτίϧ)ͱ͸ʁ ▸ Protocol͸࣮૷ͷͳ͍ClassͷΑ͏ͳ΋ͷͰ͢ ▸ Class ΍ Struct ͱಉ͘͡ ϝιου΍ϓϩύςΟΛఆٛ͢Δ͜ͱ͕Ͱ͖·͕͢۩ମత ͳ࣮૷͸͠·ͤΜ ▸ ଞͷClass΍Structʹܧঝͤͯ͞ɺϝιου΍ϓϩύςΟͷ࣮૷Λ͠·͢ ▸ جຊతʹProtocolʹఆٛ͞Ε͍ͯΔϝιου΍ϓϩύςΟ͸શ࣮ͯ૷͢Δඞཁ͕͋Γ ·͢ ▸ ProtocolΛClass΍Structʹܧঝͤ͞Δ͜ͱΛϓϩτίϧΛ࠾༻(adopt)ͤ͞Δͱݴ͍ ·͢ ▸ Ұൠ໊ࢺͱͯ͠௚༁͢Δͱ ن໿ ͱ͍͏ҙຯʹͳΓ·͢
4. ςΩετ ࣮ࡍͷίʔυ protocol Pokemon { var name: String { get } var ability: Ability { get } var level: Int { get set } var health: Int { get set } func displayStatus() func doAbility<T: Pokemon>(to pokemon: T) } Protocol Ωʔϫʔυ͔Β࢝·Δ
5. ςΩετ ࣮ࡍͷίʔυ protocol Pokemon { var name: String { get } var ability: Ability { get } var level: Int { get set } var health: Int { get set } func displayStatus() func doAbility<T: Pokemon>(to pokemon: T) } Protocol Ωʔϫʔυ͔Β࢝·Δ ͜͜͸ඞͣvarͰఆٛ͢Δ
6. ςΩετ ࣮ࡍͷίʔυ protocol Pokemon { var name: String { get } var ability: Ability { get } var level: Int { get set } var health: Int { get set } func displayStatus() func doAbility<T: Pokemon>(to pokemon: T) } Protocol Ωʔϫʔυ͔Β࢝·Δ ͜͜͸ඞͣvarͰఆٛ͢Δ ۩ମతͳ஋Λࢦఆ͢Δ୅ΘΓʹ ಡΈॻ͖ͷઃఆΛ͢Δ ͜Ε͸ get ͚ͩͳͷͰಡΈࠐΈઐ༻
7. ςΩετ ࣮ࡍͷίʔυ protocol Pokemon { var name: String { get } var ability: Ability { get } var level: Int { get set } var health: Int { get set } func displayStatus() func doAbility<T: Pokemon>(to pokemon: T) } Protocol Ωʔϫʔυ͔Β࢝·Δ ͜͜͸ඞͣvarͰఆٛ͢Δ ۩ମతͳ஋Λࢦఆ͢Δ୅ΘΓʹ ಡΈॻ͖ͷઃఆΛ͢Δ ͜Ε͸ get ͚ͩͳͷͰಡΈࠐΈઐ༻ ͪ͜Β͸ get set ྆ํͷهड़͕͋ΔͷͰ ಡΈॻ͖Մೳ
8. ςΩετ ࣮ࡍͷίʔυ(ఆٛ) protocol Pokemon { var name: String { get } var ability: Ability { get } var level: Int { get set } var health: Int { get set } func displayStatus() func doAbility<T: Pokemon>(to pokemon: T) } Protocol Ωʔϫʔυ͔Β࢝·Δ ͜͜͸ඞͣvarͰఆٛ͢Δ ۩ମతͳ஋Λࢦఆ͢Δ୅ΘΓʹ ಡΈॻ͖ͷઃఆΛ͢Δ ͜Ε͸ get ͚ͩͳͷͰಡΈࠐΈઐ༻ ͪ͜Β͸ get set ྆ํͷهड़͕͋ΔͷͰ ಡΈॻ͖Մೳ ϝιου͸໊લͱҾ਺ɺ໭Γ஋͚ͩΛهड़͠۩ମతͳ࣮૷͸ॻ͔ͳ͍
9. ςΩετ ࣮ࡍͷίʔυ(࠾༻) struct Pikachu: Pokemon { let name: String let ability: Ability var level: Int var health: Int func displayStatus() { print("name: \(self.name)") print("Lv: \(self.level)") print("HP: \(self.health)") } func doAbility<T>(to pokemon: T) where T : Pokemon { // to be continue... } } ࠾༻͍ͨ͠ProtocolΛࢦఆ͢Δ
10. ςΩετ ࣮ࡍͷίʔυ(࠾༻) struct Pikachu: Pokemon { let name: String let ability: Ability var level: Int var health: Int func displayStatus() { print("name: \(self.name)") print("Lv: \(self.level)") print("HP: \(self.health)") } func doAbility<T>(to pokemon: T) where T : Pokemon { // to be continue... } } ࠾༻͍ͨ͠ProtocolΛࢦఆ͢Δ ͜ͷೋͭ͸ఆٛͷ࣌ʹ get ͚ͩͩͬͨͷͰ let Ͱఆ਺ͱͯ͠ఆٛ(Read only)
11. ςΩετ ࣮ࡍͷίʔυ(࠾༻) struct Pikachu: Pokemon { let name: String let ability: Ability var level: Int var health: Int func displayStatus() { print("name: \(self.name)") print("Lv: \(self.level)") print("HP: \(self.health)") } func doAbility<T>(to pokemon: T) where T : Pokemon { // to be continue... } } ࠾༻͍ͨ͠ProtocolΛࢦఆ͢Δ ͜ͷೋͭ͸ఆٛͷ࣌ʹ get ͚ͩͩͬͨͷͰ let Ͱఆ਺ͱͯ͠ఆٛ(Read only) ͜ͷೋͭ͸ఆٛͷ࣌ʹ get set ྆ํࢦఆͨ͠ͷͰ var Ͱม਺ͱͯ͠ఆٛ(Read/Write)
12. ςΩετ ࣮ࡍͷίʔυ(࠾༻) struct Pikachu: Pokemon { let name: String let ability: Ability var level: Int var health: Int func displayStatus() { print("name: \(self.name)") print("Lv: \(self.level)") print("HP: \(self.health)") } func doAbility<T>(to pokemon: T) where T : Pokemon { // to be continue... } } ࠾༻͍ͨ͠ProtocolΛࢦఆ͢Δ ͜ͷೋͭ͸ఆٛͷ࣌ʹ get ͚ͩͩͬͨͷͰ let Ͱఆ਺ͱͯ͠ఆٛ(Read only) ͜ͷೋͭ͸ఆٛͷ࣌ʹ get set ྆ํࢦఆͨ͠ͷͰ var Ͱม਺ͱͯ͠ఆٛ(Read/Write) ϝιου͸ఆٛͯ͋͠ΔҾ਺໭Γ஋Λهड़ͯ͠த਎Λ࣮૷͢Δ
13. ςΩετ ࣮ࡍͷίʔυ(·ͱΊ) // Protocolఆٛ protocol Pokemon { var name: String { get } var ability: Ability { get } var level: Int { get set } var health: Int { get set } func displayStatus() func doAbility<T: Pokemon>(to pokemon: T) } // Protocol࠾༻ struct Pikachu: Pokemon { let name: String let ability: Ability var level: Int var health: Int func displayStatus() { print("name: \(self.name)") print("Lv: \(self.level)") print("HP: \(self.health)") } func doAbility<T>(to pokemon: T) where T : Pokemon { // to be continue... } }
14. 2.͍ͭ࢖͏Μʁ
15. ςΩετ ͍ͭ࢖͏Μʁ ▸ ͬ͘͟Γ෼͚ͯ
16. ςΩετ ͍ͭ࢖͏Μʁ ▸ ͬ͘͟Γ෼͚ͯ ▸ 1. ಛఆͷػೳΛఏڙͤ͞ΔͨΊ
17. ςΩετ ͍ͭ࢖͏Μʁ ▸ ͬ͘͟Γ෼͚ͯ ▸ 1. ಛఆͷػೳΛఏڙͤ͞ΔͨΊ ▸ 2. Delegate PatternΛ࣮૷͢ΔͨΊ
18. ςΩετ ͍ͭ࢖͏Μʁ ▸ ͬ͘͟Γ෼͚ͯ ▸ 1. ಛఆͷػೳΛఏڙͤ͞ΔͨΊ ▸ 2. Delegate PatternΛ࣮૷͢ΔͨΊ ▸ 3. ॲཧͷڞ௨ԽΛߦ͏ͨΊ
19. ςΩετ ͍ͭ࢖͏Μʁ ▸ ͬ͘͟Γ෼͚ͯ ▸ 1. ಛఆͷػೳΛఏڙͤ͞ΔͨΊ ▸ 2. Delegate PatternΛ࣮૷͢ΔͨΊ ▸ 3. ॲཧͷڞ௨ԽΛߦ͏ͨΊ ▸ ͷࡾͭʹͳΔͱࢥ͍·͢
20. 2-1.ػೳͷఏڙ Λͤ͞ΔͨΊ
21. ςΩετ ػೳΛఏڙͤ͞Δʁ ▸ ͜͜Ͱݴ͏ػೳͱ͸ ▸ printؔ਺Ͱ಺༰Λग़ྗ͢Δ͜ͱ͕Ͱ͖Δͱ͔ ▸ ൺֱΛ͢Δ͜ͱ͕Ͱ͖Δ ▸ ͱݴ͏ҙຯʹͳΓ·͢ ▸ લऀ͸ Printable, ޙऀ͸ Comparableͱ͍͏໊લͷProtocolͱͯ͠ఆٛ͞Ε ͍ͯ·͢ ▸ ͭ·Γ࠾༻͍ͯ͠ΔProtocolΛݟΕ͹ͲΜͳػೳΛ͍࣋ͬͯΔ͔͕Θ͔Γ ·͢
22. ςΩετ ࣮ࡍͷίʔυ ▸ XcodeͰίʔυΛॻ͖·͢
23. 2-2.DELEGATE PATTERN Λ࣮૷͢ΔͨΊ
24. ςΩετ DELEGATE PATTERNʁ ▸ Delegate Pattern ͸ϓϩάϥϜͰ࢖༻͢ΔσβΠϯύλʔϯ ͷҰͭͰ͢ ▸ ୺తʹݴ͏ͱ͋ΔObject͕ߦ͏΂͖ॲཧΛผͷObjectʹݞ ୅ΘΓͤ͞Δ͜ͱͰ͢ ▸ ݞ୅ΘΓ͢ΔΦϒδΣΫτΛ Delegate ͱݺͼ·͢ ▸ ͪͳΈʹ Delegate ͸Ұൠ໊ࢺΛ௚༁͢Δͱ ҕৡ ͱͳΓ· ͢
25. ςΩετ PROTOCOL·ͱΊ ▸ Protocol͸࣮૷ͷͳ͍ClassͷΑ͏ͳ΋ͷ ▸ Class ΍ Struct ͱಉ͘͡ ϝιου΍ϓϩύςΟΛఆٛ͢Δ͜ͱ͕Ͱ ͖Δ͕۩ମతͳ࣮૷͸ͤͣɺ࠾༻ͤͨ͞ Class ΍ Struct Ͱ࣮૷͢Δ ▸ جຊతʹProtocolʹఆٛ͞Ε͍ͯΔϝιου΍ϓϩύςΟ͸શ࣮ͯ ૷͢Δඞཁ͕͋Δ ▸ Protocol͸ಛఆͷػೳΛఏڙͤͨ͞Γɺ Delegate PatternΛ࣮૷͢ ΔͨΊʹ࢖͏
26. ͪΐͬͱ଴ͬͯɺ΋͠ ͔ͯ͠΋͏Ұͭ๨Εͯ ͳ͍ʁ
27. ςΩετ ΋͔ͯ͠͠: ϛϡ΢
28. ςΩετ ΋͔ͯ͠͠: ϛϡ΢
33. ଓ͖͸EXTENSION Ͱɾɾɾ