MVVMをベースに複雑な振る舞いを しっかり把握できるアプリ開発

Realm meetup #6 で発表した
Sync iOS開発の舞台裏についてです
プロジェクトの話や、MVVM、ViewBindingなど多義にわたり解説しています

Transcript

1. MVVMΛϕʔεʹෳࡶͳৼΔ෣͍Λ ͔ͬ͠Γ೺ѲͰ͖ΔΞϓϦ։ൃ yohei SUGIGAMI 10/21 shibuya.swift
3. Wantedly
4. Sync Messenger 8FC
   %FTLUPQ"QQ
   "OESPJE
   BOE
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   ϏδωείϛϡχέʔγϣϯಛԽϝοηʔδϯάαʔϏε
   
5. Sync iOS 4XJGU
   .77.
   '31
   1SPNJTF
 Ϟμϯͳཁૉٕज़
6. Let’s Try TZOD
   Ұ൪࠷ॳͷݕࡧ݁Ռʹग़Δ͸ͣʂ
7. Projects Summary
8. Service Architecture $MJFOU
   $SPTT
   1MBUGPSN
   4FSWFS
   .JDSPTFSWJDFT
9. Team
   "1* 8FC%FTLUPQ J04 "OESPJE GBTUMBOF
10. iOS Schedule ݄̑ ݄̒ ݄̓ ϓϩτλΠϓ։ൃ 'JSFCBTFબఆ +0*/ ਃ੥ νʔϜ಺4MBDLஔ͖׵͑ ࣾ಺4MBDLஔ͖׵͑ +0*/ ຊ։ൃ ࣾ֎ϢʔβϑΟʔυόοΫ ϲ݄ɺ̒ਓ݄͙Β͍ +0*/
11. High Speed Development  
    13
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    *TTVFT
    $MPTFE
    ݄೔࣌఺  
    $PNNJU
12. Review ϨϏϡʔΞʔΞαΠϯ 5FTU͕͚ͯ͜Δͷ͸ $JSDMF$*ͷௐࢠ͕ѱ͍ɻɻ
13. Review Ϟνϕʔγϣϯ61Ͱ
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14. Delivery by fastlane 1VMM
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15. Dog feeding 
    ։ൃ̎िؒͰ4MBDL͔Β৐Γ׵͑Δ
    
    ։ൃऀͰ͋Δࣗ෼͔ͨͪΒ·ͣϑΝϯʹͳΔ
    
    ։ൃ̍ϲ݄Ͱࣾ಺Ͱ࢖ͬͯ΋Β͍ϑΟʔυόοΫΛ΋Β͏
 
    ։ൃ̎ϲ݄Ͱ਎ۙͳࣾ֎ͷํʑʹ΋࢖ͬͯ΋Β͍͞Βʹ

    
    ଟ͘ͷϑΟʔυόοΫΛ௖͖·ͨ͠
16. Very Slow Swift Compile ̍ਓ.BD#PPL1SP̎୆Ͱ։ൃ ίϯύΠϧ଴ͪ࣌ؒΛ༗ޮ׆༻ ܕਪ࿦ͱΫϩδϟʔΩϟϓνϟ͕஗ͦ͏
17. Very Slow Swift Compile .BD#PPL
    1SP
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 ˠɹ෼ඵ
    ʢ
    
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    ˠɹࠩ෼ίϯύΠϧͷՄೳੑ΋Ξοϓ  ܕਪ࿦͠ͳ͍ͰܕΛ໌ه͢Δ
    ʢ"SSBZ΍%JDUJPOBSZ΋ʣ
     ෳ਺ͷTXJGUϑΝΠϧΛҰͭʹ·ͱΊΔ
     ܧঝ͠ͳ͍DMBTT͸pOBMΛ໌ه͢Δ
     $BSUBHFରԠͷϥΠϒϥϦ͸1PETͰΠϯετʔϧ͠ͳ͍
18. App Architecture
19. MVVM (෩) $POUSPMMFS 7JFX.PEFM .PEFM 3FBDU,JU
    4XJGU5BTL 4XJGUZ+40/ 4XJGU#POE 3FBMN 3BX%BUB 1FSTJTUFOU 4UBUF.BOBHFNFOU -PHJD 7JFX%BUB 6*,JU%FMFHBUF #JOEJOH -JCSBSZ 3FTQPOTJCJMJUZ $SFBUF7JFX 4%8FC*NBHF 7JFX
    
    7JFX -BZFS
20. ViewDataBinding 4UBUF 7JFX $POUSPMMFS 7JFX.PEFM %BUB ੹຿ͱؔ৺ࣄͷ෼཭ -PHJD 7JFX 7JFX.PEFMͷ-PHJD͸
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    7JFXʹ͍ͭͯ͸ؔ஌͠ͳ͍
    PS #JOE 7JFX͸4UBUF %BUB͕มߋ
 ͞ΕͨΒಈతʹը໘Λߋ৽
    %BUB 4UBUFͷϓϩηε͸ؔ஌͠ͳ͍ 7JFX #JOEJOH .FUIPE$BMM
21. Instane Relation 7JFX
    
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22. Request Data Flow Sequence 4XJGUZ+40/ 3FBMN 4XJGU5BTL 4XJGU#POE 1FSTJTUFODF 7JFX#JOEJOH "1*
23. Request ViewBinding 4UBUF
    
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24. Request ViewBinding 4UBUF
    
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25. Request ViewBinding final class RequestListViewModel<T: Identifier> { let items: DynamicArray<T> = DynamicArray([]) var requestListState = Dynamic<RequestListState>(.None) var noDataFirstViewHidden: Dynamic<Bool> { let a = indicatorViewHidden.map { $0 == false } let b = requestListFirstState.map { $0 == .Error } return reduce(a, b, c) { $0 || $1 == true } } var indicatorViewHidden: Dynamic<Bool> { let a = requestListFirstState.map { $0 != RequestListState.Requesting } let b = items.map { count($0) > 0 } return reduce(a, b) { $0 || $1 == true } } var retryViewHidden: Dynamic<Bool> { let a = requestListFirstState.map { $0 != RequestListState.Error } let b = items.map { count($0) > 0 } return reduce(a, b) { $0 || $1 == true } } 3FRVFTU4UBUFͱ*UFNTͷঢ়ଶͷΑΔڍಈΛએݴ

26. Request ViewBinding final class ContactsViewController: UIViewController { var tableViewDataSourceBond: UITableViewDataSourceBond<ContactCell>! let viewModel = ContactsViewModel() let indicatorView = InstantiateFromNib(IndicatorView) let retryView = InstantiateFromNib(RetryView) let noDataView = InstantiateFromNib(NoDataView) override func viewDidLoad() { super.viewDidLoad() viewModel.requestList.indicatorViewHidden ->> indicatorView.dynHidden viewModel.requestList.retryViewHidden ->> retryView.dynHidden viewModel.requestList.noDataFirstViewHidden ->> noDataView.dynHidden } 7JFX$POUSPMMFSͰ7JFX.PEFMͷ4XJGU#POEͱ7JFXΛ#JOEJOH
    
27. Request ViewBinding final class RequestListViewModel<T: Identifier> { typealias RequestTask = Task<Progress, ResponseCollection<T>, NSError> func requestFirst(task: RequestTask) -> RequestTask { self.requestListState.value = .Requesting task.success { [weak self] (collection: ResponseCollection<T>) -> Void in self?.items.setArray(collection.items) self?.requestListState.value = .None }.failure { [weak self] (errorInfo: RequestTask.ErrorInfo) -> Void in self?.requestListState.value = .Error } return task } 3FRVFTUͷ։࢝ɺਖ਼ৗ׬ྃɺҎ্׬ྃͰ4BUFΛߋ৽
    ਖ਼ৗ׬ྃ࣌ʹJUFNTΛߋ৽
28. Request ViewBinding final class RequestListViewModel<T: Identifier> { lazy var stateChangedObserver = Bond<RequestListState> { [weak self] state in switch state { case .Requesting: UIApplication.sharedApplication().networkActivityIndicatorVisible = true default: UIApplication.sharedApplication().networkActivityIndicatorVisible = false } } init() { requestListState ->| stateChangedObserver } OFUXPSL"DUJWJUZ*OEJDBUPS7JTJCMF
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29. Input with Validation ViewBinding &OBCMF
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30. Validation ViewBinding final class SignUpViewModel { let email = Dynamic<String>("") let password = Dynamic<String>("") var emailError: Dynamic<NSError?> { return email.map { Validator.Email($0).validate() } } var passwordError: Dynamic<NSError?> { return password.map { Validator.Password($0).validate() } } var isSignInInput: Dynamic<Bool> { let isEmailValid = emailError.map { nil == $0 } let isPasswordValid = passwordError.map { nil == $0 } return reduce(isEmailValid, isPasswordValid) { $0 && $1 == true } } &NBJMͱ1BTTXPSEͷ7BMJEBUJPOʹΑͬͯ
    4JHO6Q͕&OBCMFʹͳΔ͔Λએݴ

31. Validation ViewBinding final class SignUpViewController { override func viewDidLoad() { super.viewDidLoad() emailTextField ->> viewModel.email passwordTextField ->> viewModel.password viewModel.signUpState ->| signUpStateChangedObserver viewModel.isSignInInput ->> signUpButton.dynEnabled 7JFX$POUSPMMFSͰ7JFX.PEFMͷ4XJGU#POEͱ7JFXΛ#JOEJOH
    enum Validator { case Email(String?) case Password(String?) func validate() -> NSError? { switch self { case .Email(var value): return NGRValidator.validateValue(value, named: LocalizedString("Email")) { (validator: NGRPropertyValidator!) in validator.required().msgNil(LocalizedString("is required.")) validator.syntax(NGRSyntax.Email).msgWrongSyntax(NGRSyntax.Email, LocalizedString("is not valid syntax.")) } case .Password(var value): return NGRValidator.validateValue(value, named: LocalizedString("Password")) { (validator: NGRPropertyValidator!) in validator.required().msgNil(LocalizedString("is required.")) validator.minLength(6).msgTooShort(LocalizedString("is too short.")) }
32. No inherits 7JFX$POUSPMMFS
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    7JFX.PEFM
    .PEFMʹ͓͍ͯ
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     ڞ௨Խͨ͠ίʔυΛมߋ͠ʹ͍͘
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33. No inherits  %FMFHBUF
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34. Qiitaʹ΋ॻ͖·ͨ͠ IUUQRJJUBDPNTVTJFZZJUFNTBGCCEGG
35. Enjoy Sync life.
36. iOS, Android Rails ΤϯδχΞ ืूத
37. MVVM .7$
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38. MVVM .77.
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