iOS13向けに位置情報周りを対応しようとしたら苦労した話

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iOS13޲͚ʹҐஔ৘ใपΓΛ ରԠ͠Α͏ͱͨ͠Βۤ࿑ͨ͠࿩ @n3k0w3n/͓͑Ͷ͜

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͓͑Ͷ͜ גࣜձࣾAzitͰiOSΤϯδχΞ΍ͬͯ·͢ɻ ݸਓͰ࠷دӺΛݕ஌ͨ͠Γ௨஌͢ΔΞϓϦΛ࡞ͬͯ·͢ɻ Twitter: @n3k0w3n Qiita: @owen Github: @nekowen

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Ґஔ৘ใΛऔಘ͢ΔྲྀΕΛ ͓ܰ͘͞Β͍

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iOSʹରͯ͠ Ґஔ৘ใͷΦʔιϦΛཁٻ let lm = CLLocationManager() lm.delegate = self lm.requestAlwaysAuthorization() // lm.requestWhenInUseAuthorization()

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ݖݶͷมߋΛݕ஌ (Optional) func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) { switch status { // Ϣʔβʔ͕ʮৗʹʯબ୒ͨ࣌͠ case .authorizedAlways: break // Ϣʔβʔ͕ʮΞϓϦΛ࢖༻தͷΈʯΛબ୒ͨ࣌͠ case .authorizedWhenInUse: break // Ϣʔβʔ͕ڋ൱ͬͨ࣌ case .denied: break // Ϣʔβʔ͕·ͩݖݶʹ͍ͭͯબ୒͍ͯ͠ͳ͍࣌ case .notDetermined: break // ϖΞϨϯλϧίϯτϩʔϧͳͲͰ੍ݶ͞Ε͍ͯΔͱ͖ case .restricted: break } }

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Ґஔ৘ใΛऔಘ lm.startUpdatingLocation() … func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { // ͜͜ͰಘͨҐஔ৘ใʹରͯ͠ॲཧΛ͢Δ }

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iOS13͔Βͷมߋ఺

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iOS12 iOS13

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࠷ॳ͔ΒৗʹڐՄΛબ΂ͳ͘ͳͬͨ • requestAlwaysAuthorization()ΛݺͿͱΦʔιϦ͸  .alwaysͰฦͬͯ͘Δ • WWDC2019ͷηογϣϯͰ͸͜ΕΛʮԾͷৗʹڐՄʯ ͱઆ໌͞Ε͍ͯΔ • Core Location͸Ͳ͔͜ͷλΠϛϯάͰ1౓͚ͩϢʔβʔ ʹରͯ͠ʮΞϓϦΛ࢖༻தͷΈڐՄʯʹ͢Δ͔ɺʮৗʹ ڐՄʯʹ͢Δ͔ฉ͍ͯ͘Δ

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ରԠͨ͜͠ͱ • Ґஔ৘ใڐՄͷϑϩʔݟ௚͠  ඞཁͰ͋Ε͹Ϣʔβʔʹઃఆ͔Βมߋͯ͠΋Β͏Α͏ଅ͢  • ຊ౰ʹʮৗʹڐՄʯ͕ඞཁͳͷ͔ݟ௚͢  ىಈதʹόοΫάϥ΢ϯυͰಈ࡞ͤ͞Δఔ౓Ͱ͋Ε͹  ʮ࢖༻தͷΈڐՄʯͰे෼

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< શવେม͡Όͳ͘Ͷʁ

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͜Ε͔Β͕஍ࠈͰͨ͠

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̍౓͚ͩڐՄ͕௥Ճ͞Εͨ • ѻ͍ͱͯ͠͸ʮΞϓϦΛ࢖༻தͷΈڐՄʯͱಉ͡ • ΞϓϦΛkill͢Δͱ.notDetermined(ະఆ)ʹ໭Δ • ΞϓϦ͕όοΫάϥ΢ϯυʹભҠͨ͠ޙ  ͠͹Βͯ͘͠΋.notDeterminedʹ໭Δ  ※όοΫάϥ΢ϯυͰҐஔ৘ใΛ࢖͏৔߹͸໭Βͳ͍

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̍౓͚ͩڐՄ͕௥Ճ͞Εͨ • ѻ͍ͱͯ͠͸ʮΞϓϦΛ࢖༻தͷΈڐՄʯͱಉ͡ • ΞϓϦΛkill͢Δͱ.notDetermined(ະఆ)ʹ໭Δ • ΞϓϦ͕όοΫάϥ΢ϯυʹભҠͨ͠ޙ  ͠͹Βͯ͘͠΋.notDeterminedʹ໭Δ  ※όοΫάϥ΢ϯυͰҐஔ৘ใΛ࢖͏৔߹͸໭Βͳ͍ ͖ͪΜͱϋϯυϦϯάͰ͖͍ͯͳ͍ ͱɺϑΥΞάϥ΢ϯυʹ෮ؼͨ࣌͠ ʹҐஔ৘ใΛऔಘͰ͖ͳ͘ͳΔʂ

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< ŝƄŚŚ

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΍ͬͪ·࣮ͬͨ૷ (.notDeterminedΛϋϯυϦϯά͍ͯ͠ͳ͍ύλʔϯ) override func viewDidLoad() { super.viewDidLoad() self.lm.delegate = self self.lm.requestAlwaysAuthorization() } func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) { switch status { case .authorizedAlways, .authorizedWhenInUse: manager.startUpdatingLocation() default: break } }

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ରԠํ๏

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Ϣʔβʔ͕Ґஔ৘ใͷऔಘΛ ৗʹٻΊ͍ͯΔ৔߹ ex) ϚοϓΞϓϦͳͲɺΞϓϦΛ։͍ͨΒৗʹࣗ෼ ͷҐஔ৘ใΛ஌Δඞཁ͕͋Δ৔߹ → ΞϓϦ͕ϑΥΞάϥ΢ϯυʹೖͬͨΒ ΦʔιϦΛٻΊΔ

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func applicationWillEnterForeground(_ application: UIApplication) { if CLLocationManager.authorizationStatus() == .notDetermined { self.lm.requestWhenInUseAuthorization() } }

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Ϣʔβʔ͕Ґஔ৘ใͷ औಘλΠϛϯάΛܾΊΔ৔߹ ex) νΣοΫΠϯϘλϯΛԡͨ͠Βݱࡏ஍Λαʔ όʔʹૹΓ͚ͭΔ৔߹ → Ґஔ৘ใΛऔಘ͢Δ࣌ʹΦʔιϦΛٻΊΔ

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func startCheckIn() { switch CLLocationManager.authorizationStatus() { case .authorizedAlways, .authorizedWhenInUse: self.lm.requestLocation() case .notDetermined: self.lm.requestWhenInUseAuthorization() case .denied, .restricted: self.showErrorAlert() } }

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·ͱΊ • ࠓͷΞϓϦ͕ཁٻ͢Δݖݶ͕ຊ౰ʹਖ਼͍͠ͷ͔ݟ௚͢  ʮҐஔ৘ใʁ͏ʔΜɺৗʹڐՄʂwʯ͸ආ͚Δ  • ʮΞϓϦΛ࢖༻தͷΈڐՄʯ͕બ୒͞Εͨ࣌ͷ͜ͱΛߟ͑Δ  ඞཁͰ͋Ε͹ɺϢʔβʔʹݖݶͷมߋΛଅ͢  • ݖݶ͕ະఆͷঢ়ଶʹ໭Δ͜ͱΛߟྀ͢Δ  ඞཁͳ࣌ɺ͍ͭͰ΋ΦʔιϦΛཁٻͰ͖ΔΑ͏ʹઃܭ͓ͯ͘͠

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͝੩ௌ ͋Γ͕ͱ͏͍͟͝·ͨ͠