画面遷移と私（iOS)

画面遷移のときに値渡したりもらったりするところ、もっと簡単に書きたいよね！のアップデート。

1. ը໘ભҠͱࢲʢiOSʣ ॴ ༑ଠ @tokorom iOS App Programer potatotips-19
2. ॴ
   ༑ଠ
   @tokorom
3. ͪΐ͏Ͳ1೥લ ୈ6ճ potatotips
4. iOSͷը໘ભҠͱࢲ ॴ ༑ଠ @tokorom iOS App Programer potatotips-19
5. ը໘ભҠͷྺ࢙
6. ը໘ભҠͷྺ࢙ •لݩલɿStoryboardొ৔લ •لݩޙɿStoryboardొ৔Ҏޙ •৽࣌୅ɿcontext࣌୅ʁ
7. Storyboardొ৔Ҏલͷը໘ભҠ let selectVC = SelectItemVC() selectVC.targetUser = self.user self.presentViewController(selectVC, animated: true, completion: nil) ભҠઌʹ஋Λ౉͢
8. Storyboardొ৔Ҏલͷը໘ભҠ selectVC.delegate = self extension MyViewController: SelectItemVCDelegate { override func itemDidSelect(item: Item) { // get an item! } } ભҠઌ͔Β஋Λ΋Β͏
9. Storyboard࣌୅ͷը໘ભҠ self.performSegueWithIdentifier("SelectItems", sender: nil) override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { switch segue.identifier { case: "SelectItems": if let selectVC = segue.destinationViewController as? SelectItemsViewController { selectVC.user = self.user } ભҠઌʹ஋Λ౉͢
10. Storyboard࣌୅ͷը໘ભҠ @IBAction func unwind(segue: UIStoryboardSegue) { if let vc = segue.sourceViewController as? SelectitemVC { let item = vc.selectedItem } } ભҠઌ͔Β஋Λ΋Β͏
11. WatchKitͰͷྫ self.presentControllerWithName("SelectItem", context: user) override func awakeWithContext(context: AnyObject?) { super.awakeWithContext(context) self.user = context as? User } ભҠઌʹ஋Λ౉͢
12. WatchKitͰͷྫ self.presentControllerWithName("SelectItem", context: user) override func awakeWithContext(context: AnyObject?) { super.awakeWithContext(context) self.user = context as? User } ભҠઌʹ஋Λ౉͢
13. WatchKitͷcontextͷྑ͍ͱ͜Ζ •ૄ݁߹ʂ •஋Λ౉͢ͱ͖ʹભҠݩͱભҠઌ͕ґଘؔ܎͕Ͱ ͖ͳ͍ •ಉ͡ΠϯλʔϑΣʔεͰͳΜͰ΋౉ͤΔ •Optional BidingͳͲͰ؆୯/҆શʹड͚औΕΔ
14. ͳ͓… ̍ϲ݄લͷ΅͘
15. Swift࣌୅͸ΈΜͳ͜͏ॻ͖͍ͨΑͶ self.performSegueWithIdentifier("ItemSelect", context: user) { (item: Item) in let selectedItem = item } ભҠઌʹ஋Λ౉͢ˍ΋Β͏
16. ͪΐ͏Ͳ1೥લ ୈ6ճ potatotips
17. ͪΐ͏Ͳ1೥લ ୈ6ճ potatotips
18. ͦͯ͠ࠓ೔ʂ https://github.com/tokorom/SegueContext
19. ͜ͷॻ͖ํɺͰ͖·͢ʂ self.performSegueWithIdentifier("ItemSelect", context: user) { (item: Item) in let selectedItem = item } ભҠઌʹ஋Λ౉͢ˍ΋Β͏
20. UIViewController+Contextͷྑ͍ͱ͜ •ૄ݁߹ʂ •SwiftͰܕ҆શͳ஋ͷड͚౉͠ •NavigationControllerͱ͔TabBarControllerΛڬΜ Ͱ΋΁ͬͪΌΒ •ΧελϜSegueͳͲෳࡶͳભҠͰ΋࢖͑Δ •Apple Way͔Β͸ͣΕ͗͢ͳ͍ʁ
21. More Information Yuta ToKoRo iOS App Programer Twitter @tokorom http://www.tokoro.me/ https://github.com/tokorom/SegueContext