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なぜうちのチームは開発中のアプリを MVVM から MVC に戻したのか
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Elvis Shi
December 12, 2018
Programming
6.7k
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なぜうちのチームは開発中のアプリを MVVM から MVC に戻したのか
Elvis Shi
December 12, 2018
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Transcript
ͳͥ͏ͪͷνʔϜ։ൃதͷΞϓϦΛ .77.͔Β.7$ʹͨ͠ͷ͔ for$"TXJGU
} var employedBy = "YUMEMI Inc." var job = "iOS
Developer" var favoriteLanguage = "Swift" var twitter = "@lovee" var qiita = "lovee" var github = "el-hoshino" var additionalInfo = """ εϊϘָ͍͠ """ class Me: Developable, Talkable {
ͳͥ͏ͪͷνʔϜ։ൃதͷΞϓϦΛ .77.͔Β.7$ʹͨ͠ͷ͔ for$"TXJGU
ΞϓϦεϖοΫ w ۚ༥ܥΞϓϦʢϦΞϧλΠϜϨʔτมಈ͋Γʣ w J04"OESPJE྆ϓϥοτϑΥʔϜ w ֎෦όοΫΤϯυ"1*ʹґଘ w ։ൃظؒʢडೖςετؚΊͯʣϲ݄
1. ࠓͷΞϓϦɺϦΞϧλΠϜͷϨʔτมಈΛදࣔ ͠ͳ͍ͱߦ͚ͳ͍͠ɺ"OESPJE࣮࣭.77. ͷ""$͏͔ΒɺJ04ʢ3YΛͬͨσʔλ όΠϯσΟϯά͕͋Δʣ.77.Ͱ࡞Ζ͏͔ʁ Ͳ͔ͬͪͱ͍͏ͱ.7$ͷํʹ׳Ε͍ͯΔͷͰɺ εέδϡʔϧΩοπΩπͩ͠ɺ͍׳ΕͯΔ.7$
ͷํ͕ແ͔ͱʜ $ 5. ࠷ۙ.77.ͷํ͕τϨϯυͬΆ͍ؾ͕͢Δ͠ɺ ࢲͨͪ.77.Γ͍ͨͰ͢ʂ ͏ʔΜΈΜͳ͕ͦ͏ݴ͏ͷͳΒ͡Ό͋.77.Ͱ ߦ͜͏͔ $ 5. ͱݴ͏Θ͚Ͱ.77.ͱ3Y4XJGU͋Μ·Γৄ͠ ͘ͳ͍ͷͰ佃Ꭺ͓ئ͍͠·͢ʂ ͓͍ɺϚδ͔
λΠϜϥΠϯ ݄ ݄ ݄ ݄ ݄ ݄ ݄ ݄ ΞϓϦ։ൃ։࢝
ʢ.77.ܾఆʣ αʔό"1* શͯଗ͏ ݁߹ςετ डೖςετ ৴։࢝ 䘦 ㌓
λΠϜϥΠϯ ΞϓϦ։ൃ։࢝ ʢ.77.ܾఆʣ ݄ ݄ ݄ ݄ ݄ ݄ ݄
αʔό"1* Ұ෦ଗ͑ͣ ݄ ๏վਖ਼ఆ ʢը໘༷Ұ෦มߋʣ "1*࣮Ϩεϙϯε ఆٛॻͱ૬ҧΛൃ֮ ݪଇ.7$ʹ ํసܾఆ Ұ୴։ൃऴྃ༧ఆ 䘞
࣮ࡍ.77.ʢʷ3Y4XJGUʣͰ։ൃͯ͠Έͨײ ʢωΨςΟϒʣ w 7JFX$POUSPMMFSͱ7JFX.PEFM͕େྔͷॏෳఆٛ w ॳظ࣮ίετ͕ߴ͍ w ը໘༷ͷมߋʹର͢Δमਖ਼ίετߴ͍ w 3Y4XJGUͷํόΠσΟϯάͱ0QFSBUPS͕͔ͳΓَ
w ׳Εͯͳ͍ਓʹͱͬͯͷशಘίετ͕ඇৗʹߴ͍ w 13ͷࠩ͠͠ଟ͍ w 3Y4XJGUͷ0QFSBUPSΛόϦόϦͬͨॻ͖ํ͕ಡΈʹ͍͘ w Ͳ͜ʹͲΜͳॲཧ͕Ͳ͏࣮͞Ε͍ͯΔͷׂ͔͕ͱ୳͠ʹ͍͘ w େྔͷ.disposed(by: disposeBag)͕োΓ
ͦͦͳΜͰ .77.͏ΜͰ͚ͨͬ͠ʁ
1. ࠓͷΞϓϦɺϦΞϧλΠϜͷϨʔτมಈΛදࣔ ͠ͳ͍ͱߦ͚ͳ͍͠ɺ"OESPJE࣮࣭.77. ͷ""$͏͔ΒɺJ04ʢ3YΛͬͨσʔλ όΠϯσΟϯά͕͋Δʣ.77.Ͱ࡞Ζ͏͔ʁ Ͳ͔ͬͪͱ͍͏ͱ.7$ͷํʹ׳Ε͍ͯΔͷͰɺ εέδϡʔϧΩοπΩπͩ͠ɺ͍׳ΕͯΔ.7$
ͷํ͕ແ͔ͱʜ $ 5. ࠷ۙ.77.ͷํ͕τϨϯυͬΆ͍ؾ͕͢Δ͠ɺ ࢲͨͪ.77.Γ͍ͨͰ͢ʂ ͏ʔΜΈΜͳ͕ͦ͏ݴ͏ͷͳΒ͡Ό͋.77.Ͱ ߦ͜͏͔ $ 5. ͱݴ͏Θ͚Ͱ.77.ͱ3Y4XJGU͋Μ·Γৄ͠ ͘ͳ͍ͷͰ佃Ꭺ͓ئ͍͠·͢ʂ ͓͍ɺϚδ͔
.77.Λಋೖͨ͠ཧ༝ w ϦΞϧλΠϜͷϨʔτมಈ w "OESPJE࣮࣭.77.ͷ""$͏ w ࢲͨͪ.77.Γ͍ͨ ˢͦΕͦͷը໘͚ͩΜ͚ʂ ˢ"OESPJEͱͷίʔυڞ༗ͯ͠ͳ͍Μ͚ʂ ˢ୭Ұਓܦݧऀ͍ͳ͍Μ͚ʂ
ͦͦͷɺ.7$͕ ϦΞϧλΠϜը໘ߋ৽ ͠ʹ͍͘Θ͚Ͱͳ͍ʂ
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FUD
ޡղ͞Ε·ͬͨ͘.7$ʢʣ w .7$Ͱ.PEFM͔Βσʔλͷߋ৽͕௨͞ΕΔ w ʮ%BUB#JOEJOHʯݴΘͳ͍͕ɺ0CTFSWFSύλʔ ϯΛར༻ͯ͠Ϟσϧͷঢ়ଶߋ৽͕ϦΞϧλΠϜͰߪ ಡΦϒδΣΫτʹ௨͞ΕΔ w ߪಡΦϒδΣΫτݪॳ.7$ͳΒ7JFXɺ $PDPB.7$ͳΒ7JFX$POUSPMMFSʹͳΔ
r lͱݴ͏Θ͚Ͱɺͬͺ.7$ʹ͠Α͏z
.77. // ViewController viewModel.mailPlaceHolderText .asDriver(onErrorJustReturn: "") .drive(rx.mailPlaceHolderText) .disposed(by: disposeBag) mailTextField.rx.text.orEmpty
.bind(to: viewModel.emailObserver) .disposed(by: disposeBag) loginButton.rx.tap .bind(to: viewModel.onLoginActionFired) .disposed(by: disposeBag) // ViewModel var mailPlaceHolderText: Observable<String> { return .just(R.string.localizable.loginScene_MailPlaceHolder()) } _email .map(validationUsecase.email) .bind(to: _emailValidation) .disposed(by: disposeBag) _onLoginActionFired .withLatestFrom(Observable.combineLatest(_email, _password)) .subscribe(onNext: loginUsecase.login) .disposed(by: disposeBag)
.7$ // ViewController mailTextField.placeholder = R.string.localizable .loginScene_MailPlaceHolder() usecase.mail .subscribe(onNext: {
[unowned self] in self.set($0, to: mailTextField) }) .disposed(by: disposeBag) func textFieldDidEndEditing(_ textField: UITextField) { switch textField { case mailTextField: usecase.setMail(textField.text) // } } @objc private func onButtonTapped(sender: UIButton) { switch sender { case loginButton: usecase.login() // } }
.7$ʹ͢͜ͱʹΑͬͯಘΒΕͨͷ w ൺֱతʹগͳ͍ίʔσΟϯάίετͱ༷มߋʹର͢Δमਖ਼ίε τ w ѹతʹগͳ͍3Y4XJGUͷ֤छ0QFSBUPSͳͲʹର͢Δशಘί ετ w ୯Ұํ˞σʔλϑϩʔʹΑΔσόοάͷ͢͠͞ w
ແཧཧʹϦΞΫςΟϒϓϩάϥϛϯά˞ΛೖΕͳ͍͍ͯ͘ͱݴ ͏৺ཧతͷԺ͔͞ ˞ਖ਼֬ʹ$PDPB.7$ͷ߹7$͕.FEJBUPSύλʔϯΛར༻͍ͯ͠ΔͨΊݫີ ͳ୯ҰํͰͳ͍͕ɺ.77.ͱൺΕ͔ͳΓָͰ͋Δ ˞.77.ͰผʹઈରશͯϦΞΫςΟϒͰ·ͳͯ͘ͳΒͳ͍ͱݴ͏ܾ·Γͳ͍ Ͱ͕͢ɺΓ%BUB#JOEJOHͷ࣌Ͱͩ͜ΘΓ͕ͪͳ໘͕͋Δͱݸਓతʹࢥ͏
ڭ܇ w ༷͕શʹఆ·ͬͯͳ͍ஈ֊ͰɺΛࡉׂ͔͗͘͢͠Δͱٯʹ ༷มߋʹର͢Δमਖ਼ίετ͕ߴ͍ w Ή͠Ζ͋Δఔʮաଟʯͳઃܭͷํ͕༷มߋʹॊೈ w ೲظͱͷઓ͍͕ڧ͍ΒΕͨ߹ɺແཧʹʮྑͦ͞͏ʯͳઃܭΛಋೖ͢ Δඞཁͳ͍ w
ͲͷઃܭΛ͏ΑΓɺઃܭͷΠϝʔδ͕ͲΕ͚ͩνʔϜϝϯόʔ ͱڞ༗Ͱ͖͍ͯΔ͔͕ॏཁ w .7$·ͩ·ͩݱʂ w গͳ͘ͱʮϦΞϧλΠϜߋ৽ʯ.7$Λ࠾༻͠ͳ͍ཧ༝ʹͳ Βͳ͍ w ઃܭʹۜͷؙͳ͍ʂ w ༷ʑͷઃܭͷϝϦοτɾσϝϦοτΛཧղ্ͨ͠Ͱͷݕ౼͕ඞཁ
ʲએʳ
J04ΞϓϦઃܭύλʔϯೖ IUUQTQFBLTDDJ04@BSDIJUFDUVSF
גࣜձࣾΏΊΈɺΤϯδχΞઈࢍืूத IUUQSFDSVJUZVNFNJDPKQ