Elena Elena - 2 months ago 169
iOS Question

iOS app is not launching after converting to Swift 3

I have converted the existing app to Swift 3, but when I try to launch it from Xcode nothing happens.

To be exact the app is successfully installed, opened, but shows only white screen. No buildtime or runtime errors.

I put breakpoint in

private func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool
, but it doesn't arrive there.

Launching in simulator prints the following in console:

2016-09-19 14:52:47.881377 ProjectName[63797:9522206] bundleid: com.company.ProjectName, enable_level: 0, persist_level: 0, propagate_with_activity: 0

2016-09-19 14:52:47.897791 ProjectName[63797:9522206] subsystem: com.apple.siri, category: Intents, enable_level: 1, persist_level: 1, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0

2016-09-19 14:52:47.933007 ProjectName[63797:9525057] subsystem: com.apple.UIKit, category: HIDEventFiltered, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0

2016-09-19 14:52:47.936713 ProjectName[63797:9525057] subsystem: com.apple.UIKit, category: HIDEventIncoming, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0

2016-09-19 14:52:48.006885 ProjectName[63797:9525049] subsystem: com.apple.BaseBoard, category: MachPort, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0

2016-09-19 14:52:48.039142 ProjectName[63797:9522206] subsystem: com.apple.UIKit, category: StatusBar, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0

2016-09-19 14:52:48.142475 ProjectName[63797:9522206] subsystem: com.apple.BackBoardServices.fence, category: App, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0


Device: iPhone SE iOS 9.3.5

Simulator: 6 and SE, both iOS 10.0

Help? Anyone? Please.

Answer

Try to replace

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

to this:

func applicationDidFinishLaunching(_ application: UIApplication) {
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