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古き良きsendAction (in potatotips #26)
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tokorom
February 17, 2016
Technology
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古き良きsendAction (in potatotips #26)
UIApplicationのsendActionを見直そう
tokorom
February 17, 2016
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Transcript
ݹ͖ྑ͖ sendAction ॴ ༑ଠ @tokorom iOS App Programer potatotips-26
ॴ༑ଠ @tokorom (ϑϦʔλʔʣ potatotipsӡӦ૭ޱ / potatotipsΛओ࠵͍͚ͨͩΔձࣾ͞Μืूதʂ
UIApplication - sendAction
UIApplication - sendAction •࣮ࡍʹ͍ͬͯΔਓͲͷ͘Β͍ʁ •ͦͦଘࡏΛ͍ͬͯΔʁ •ʢUIControlͷ΄͏ͨ·ʹݟΔ͚Ͳ…ʣ •ʢ͍ͬͯΔͷΛ͋Μ·Γݟͨ͜ͱͳ͍ʣ
UIApplication - sendAction NEW! iOS 9 Ͱ ྲྀ ͷ͝ͱ͘ݱΕͨ ࠷ڧ
ͷ function !?
UIApplication - sendAction iPhone OS 2 ͔Β ͘͝ ී௨ ʹଘࡏ͢Δ
͋·Γ ΘΕͳ͍ ͭ
// hoge: ΛൃՐ let app = UIApplication.sharedApplication() app.sendAction("hoge:", to: xxx,
from: sender, forEvent: nil) // hoge: func hoge(sender: AnyObject) { print("hoge!!") } αϯϓϧίʔυ UIApplication - sendAction
UIApplication - sendAction •ग़ͨΑɺจࣈྻࢦఆʂ •Objective-C෩selectorࢦఆ͕ݹष͍ •͍ॴ͋Δͷʁ •RxSwiftͱ͔͏΄͏͕Α͘ͳ͍ʁ app.sendAction("hoge:", to: xxx,
from: sender, forEvent: nil) ͓͓ΉͶ ਖ਼ղ
Responder Chain (in UIKit)
Responder Chain (in UIKit) •Ԟ·ͬͨ֊ͰൃՐ •֊ͷͲ͜Ͱड͚ΒΕΔ •DelegateͷΑ͏ʹreceiverΛड͚ ͢ඞཁ͕ͳ͍ •ଞखஈͰಉ͡ߏΛ࣮ݱ͢Δͷ ͍͠
Responder Chain (in UIKit) app.sendAction("hoge:", to: xxx, from: sender, forEvent:
nil) app.sendAction("hoge:", to: , from: sender, forEvent: nil) app.sendAction("hoge:", to: nil, from: sender, forEvent: nil)
Responder Chain (in UIKit) UITabBarController UIViewController UITabBarController UIViewController UIViewController UIViewController
Responder Chain (in UIKit) UITabBarController UIViewController UITabBarController UIViewController UIViewController UIViewController
UITableView UITableViewCell UIView UIButton
sendActionͷྑ͍ͱ͜Ζ •Responder Chainͳૄ݁߹ͳΈͰը໘ߏ ͕มΘͬͯར༻Ͱ͖Δ •CocoaͷࠜװͱͳΔΈͷͨΊྲྀߦʹࠨӈ͞ Εͳ͍
sendActionͷμϝͳͱ͜Ζ •ΠϯλʔϑΣʔε͕ݹ͍ •จࣈྻࢦఆ •selector?? •ҾʹಛఆͷObjectΛͮ͠Β͍
৽͍͠ΠϯλʔϑΣʔεͰϥοϐϯά // hoge: ΛൃՐ HogeEvent(hoge: hoge).fireFrom(self.view) // hoge: func hoge(sender:
AnyObject) { guard let hoge: Hoge =ɹContext.valueFor(sender) else { return } print("hoge: \(hoge)") }
·ͱΊ •UIApplicationͷsendAction߹ʹΑͬͯ༗ ༻ •ݹ͖ྑ͖ػೳ͕ͩը໘ߏ͕ෳࡶͳݱͰͦ͜ ར༻Ձ͕͋Δ •ੲ͔Β͋Δػೳʹҙ֎ͱ͑Δͷ͕ͬͯ ͍Δ͔ʁ
More Information Yuta ToKoRo iOS App Programer Twitter @tokorom http://www.tokoro.me/