Realm Centered Design

Realm, RxSwift, RxRealm MVVM

Transcript

1. yohei SUGIGAMI
   Realm Centered Design
   RxSwift+RxRealm(RealmNotification)
   Aug. 23, 2016 @ Wantedly
   potatotips #32
   Realmத৺ઃܭ
   

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2. γΰτͰίίϩΦυϧ
   ਿ্ ༸ฏ
   Yohei SUGIGAMI
   ID susieyy
   TwitterˍQiitaˍGithub
   

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3. γΰτͰίίϩΦυϧ
   Launch iPhone3G
   iOS Developer since mid 2008
   realm notificationΛ஌ͬͯ·͔͢ʁ
   

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4. γΰτͰίίϩΦυϧ
   Launch iPhone3G
   iOS Developer since mid 2008
   addNotificationBlockϝιουͰϒϩοΫΛ
   ొ࿥͢ΔͱΦϒδΣΫτ͕ߋ৽͞Εͨͱ͖
   ௨஌Λड͚Δ͜ͱ͕ͰΔ
   ʢਆػೳʣ
   

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5. γΰτͰίίϩΦυϧ
   Launch iPhone3G
   iOS Developer since mid 2008
   Aը໘ Bը໘
   WriteTx
   Notification
   Aը໘ͰͷมߋΛBը໘ʹ௨஌Ͱ͖Δ
   

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6. γΰτͰίίϩΦυϧ
   Launch iPhone3G
   iOS Developer since mid 2008
   Code example
   ͱ͘ʹ഑ྻσʔλͷ؂ࢹͷ
   ࠩ෼Index௨஌͕͢͹Β͍͠ʂ
   

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7. γΰτͰίίϩΦυϧ
   Launch iPhone3G
   iOS Developer since mid 2008
   RxSwift
   RxRealm
   x
   meets
   

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8. γΰτͰίίϩΦυϧ
   Launch iPhone3G
   iOS Developer since mid 2008
   try! Realm().objects(ContactRealm).asObservableChangeset()
   .subscribeNext { [weak self] results, changeset in
   guard let tableView = self?.tableView else { return }
   self?.results = results
   if let changeset = changeset {
   tableView.beginUpdates()
   tableView.insertRowsAtIndexPaths(…, withRowAnimation: .Automatic)
   tableView.deleteRowsAtIndexPaths(…, withRowAnimation: .Automatic)
   tableView.reloadRowsAtIndexPaths(…, withRowAnimation: .Automatic)
   tableView.endUpdates()
   } else {
   tableView.reloadData()
   }
   }.addDisposableTo(disposeBag)
   NotificationΛRxSwiftͷObservableͱͯ͠ѻ͑Δʂ
   

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9. γΰτͰίίϩΦυϧ
   Launch iPhone3G
   iOS Developer since mid 2008
   // Simple Create
   [MessageRealm("hello"), MessageRealm("world")]
   .toObservable()
   .subscribe(Realm.rx_add())
   // With API
   let request = API.Endpoint.MessagesRequest().request()
   Session.rx_response(request)
   .subscribe(Realm.rx_add())
   RealmObjectͷCRUD΋RwSwiftͷ؅ཧԼʹʂ
   

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10. γΰτͰίίϩΦυϧ
    B
    Launch iPhone3G
    iOS Developer since mid 2008
    RxSwift MVVM
    Realm Centered Design
    RxRealm
    

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11. γΰτͰίίϩΦυϧ
    Launch iPhone3G
    iOS Developer since mid 2008
    View ViewModel
    Aը໘
    Bը໘
    Cը໘
    Subscribe
    ௨৴தͳͲը໘ݻ༗ͷঢ়ଶ
    RxSwift w/
    MVVM
    ը໘ͷओཁͳσʔλ
    ը໘ԣஅతͳσʔλͷѻ͍͕೉͍͠
    ʢLike໰୊ʣ
    

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12. γΰτͰίίϩΦυϧ
    Launch iPhone3G
    iOS Developer since mid 2008
    View ViewModel
    Aը໘
    Bը໘
    Cը໘
    Subscribe
    ը໘ԣஅతͳঢ়ଶɾσʔλ
    ௨৴தͳͲը໘ݻ༗ͷঢ়ଶ
    earth
    (Singleton)
    ஍ٿ͸Ͱ͔͍ͬγϯάϧτϯ
    RxSwift w/
    MVVM(earth)
    ը໘ͷओཁͳσʔλ
    Global ViewModel
    ©
    

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13. γΰτͰίίϩΦυϧ
    Launch iPhone3G
    iOS Developer since mid 2008
    View ViewModel
    Aը໘
    Bը໘
    Cը໘
    Observable Store
    Subscribe
    ը໘ԣஅͳঢ়ଶ
    ը໘ͷओཁͳσʔλ
    ௨৴தͳͲը໘ݻ༗ͷঢ়ଶ
    earth
    (Singleton)
    ஍ٿ͸Ͱ͔͍ͬγϯάϧτϯ
    RxSwift+RxRealm w/
    MVVM
    (RxRealm)
    

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14. γΰτͰίίϩΦυϧ
    Launch iPhone3G
    iOS Developer since mid 2008
    Redux
    - Single source of truth
    - State is read-only
    - Changes are made with pure functions
    ΞϓϦͷঢ়ଶɾσʔλΛอ࣋͢ΔStore͸ͨͩ1ͭ
    Inspired by
    

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15. γΰτͰίίϩΦυϧ
    Launch iPhone3G
    iOS Developer since mid 2008
    ΫϥΠΞϯτΞϓϦ͸ঢ়ଶɾσʔλ؅ཧ͸ෳࡶ
    - ෭࣍తͳ࢈෺ͱͯ͠ɺRxDatasourceʹΑΔTableViewBinding͸࢖͍ʹ
    ͍͘ͷͰRealmNotificationʹΑΔTableViewReload͸ѻ͍΍͍͢
    㱺 Rx w/ MVVMͱReduxͷ͍͍ͱ͜ΖͲΓΛ͍ͨ͠
    - ը໘ʹඥͮ͘σʔλͱঢ়ଶΛViewModelʹ٧ΊΔͷ΋ɺΞϓϦશମͷσʔλͱ
    ঢ়ଶΛStoreʹ٧ΊΔͷ΋྆ۃ୺Ͱਏ͍
    - “஍ٿ͸Ͱ͔͍ͬγϯάϧτϯ”͸ΤϙοΫϝΠΩϯά
    - ը໘ʹඥͮ͘ঢ়ଶΛ֤ViewModelʹσʔλΛStoreʢRealm or Singletonʣ
    ʹͱ͍͏ં஭ҊΛߟ͑ͨ
    ·ͱΊ
    

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16. 5IBOLZPV
    

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