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。

Transcript

1. ը໘ભҠͱࢲʢiOSʣ
   ॴ ༑ଠ @tokorom
   
   iOS App Programer
   potatotips-19
   

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2. ॴ༑ଠ
   @tokorom
   

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3. ͪΐ͏Ͳ1೥લ
   ୈ6ճ potatotips
   

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4. iOSͷը໘ભҠͱࢲ
   ॴ ༑ଠ @tokorom
   
   iOS App Programer
   potatotips-19
   

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5. ը໘ભҠͷྺ࢙
   

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6. ը໘ભҠͷྺ࢙
   •لݩલɿStoryboardొ৔લ
   •لݩޙɿStoryboardొ৔Ҏޙ
   •৽࣌୅ɿcontext࣌୅ʁ
   

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7. Storyboardొ৔Ҏલͷը໘ભҠ
   let selectVC = SelectItemVC()
   selectVC.targetUser = self.user
   self.presentViewController(selectVC, animated: true,
   completion: nil)
   ભҠઌʹ஋Λ౉͢
   

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8. Storyboardొ৔Ҏલͷը໘ભҠ
   selectVC.delegate = self
   extension MyViewController: SelectItemVCDelegate {
   override func itemDidSelect(item: Item) {
   // get an item!
   }
   }
   ભҠઌ͔Β஋Λ΋Β͏
   

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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౉͢
   

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10. Storyboard࣌୅ͷը໘ભҠ
    @IBAction func unwind(segue: UIStoryboardSegue) {
    if let vc = segue.sourceViewController as?
    SelectitemVC {
    let item = vc.selectedItem
    }
    }
    ભҠઌ͔Β஋Λ΋Β͏
    

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11. WatchKitͰͷྫ
    self.presentControllerWithName("SelectItem", context: user)
    override func awakeWithContext(context: AnyObject?) {
    super.awakeWithContext(context)
    self.user = context as? User
    }
    ભҠઌʹ஋Λ౉͢
    

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12. WatchKitͰͷྫ
    self.presentControllerWithName("SelectItem", context: user)
    override func awakeWithContext(context: AnyObject?) {
    super.awakeWithContext(context)
    self.user = context as? User
    }
    ભҠઌʹ஋Λ౉͢
    

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13. WatchKitͷcontextͷྑ͍ͱ͜Ζ
    •ૄ݁߹ʂ
    •஋Λ౉͢ͱ͖ʹભҠݩͱભҠઌ͕ґଘؔ܎͕Ͱ
    ͖ͳ͍
    •ಉ͡ΠϯλʔϑΣʔεͰͳΜͰ΋౉ͤΔ
    •Optional BidingͳͲͰ؆୯/҆શʹड͚औΕΔ
    

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14. ͳ͓…
    ̍ϲ݄લͷ΅͘
    

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15. Swift࣌୅͸ΈΜͳ͜͏ॻ͖͍ͨΑͶ
    self.performSegueWithIdentifier("ItemSelect", context: user)
    { (item: Item) in
    let selectedItem = item
    }
    ભҠઌʹ஋Λ౉͢ˍ΋Β͏
    

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16. ͪΐ͏Ͳ1೥લ
    ୈ6ճ potatotips
    

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17. ͪΐ͏Ͳ1೥લ
    ୈ6ճ potatotips
    

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18. ͦͯ͠ࠓ೔ʂ
    https://github.com/tokorom/SegueContext
    

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19. ͜ͷॻ͖ํɺͰ͖·͢ʂ
    self.performSegueWithIdentifier("ItemSelect", context: user)
    { (item: Item) in
    let selectedItem = item
    }
    ભҠઌʹ஋Λ౉͢ˍ΋Β͏
    

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20. UIViewController+Contextͷྑ͍ͱ͜
    •ૄ݁߹ʂ
    •SwiftͰܕ҆શͳ஋ͷड͚౉͠
    •NavigationControllerͱ͔TabBarControllerΛڬΜ
    Ͱ΋΁ͬͪΌΒ
    •ΧελϜSegueͳͲෳࡶͳભҠͰ΋࢖͑Δ
    •Apple Way͔Β͸ͣΕ͗͢ͳ͍ʁ
    

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21. More Information
    Yuta ToKoRo
    iOS App Programer
    Twitter @tokorom
    http://www.tokoro.me/
    https://github.com/tokorom/SegueContext
    

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