我正在编译我的应用程序的新版本，在设备和模拟器上的启动屏幕之后，屏幕就变成了空白。我构建的应用程序的上一个版本运行得很好。。。当前版本在安卓设备上发布得很好。下面的日志与应用程序启动时的日志基本相同，没有问题，所以我不知道是什么导致了这次WOD。如何解决此问题？否则我怎么才能得到屏幕为什么挂着的真实日志？
在Safari Inspector中，我可以看到整个应用程序的html加载情况很好。。。一切似乎都在那里。此外，控制台日志中没有任何JS/AngularJS错误报告。
我添加了一些console.log，看看我是否可以确定事情的进展，但甚至不能在Xcode或Safari检查器中打印到控制台。
这是我的环境：
离子信息
Ionic:
Ionic CLI : 5.4.4 (/usr/local/lib/node_modules/ionic)
Ionic Framework : ionic1 1.0.0
@ionic/v1-toolkit : 1.0.22
Cordova:
Cordova CLI : 9.0.0 (cordova-lib@9.0.1)
Cordova Platforms : ios 5.0.1
Cordova Plugins : cordova-plugin-ionic-keyboard 2.1.3, (and 32 other plugins)
Utility:
cordova-res : 0.6.0 (update available: 0.9.0)
native-run : 0.2.8 (update available: 0.3.0)
System:
ios-deploy : 1.9.4
ios-sim : 8.0.2
NodeJS : v10.16.3 (/usr/local/bin/node)
npm : 6.11.2
OS : macOS High Sierra
Xcode : Xcode 10.1 Build version 10B61
在控制台日志中，我认为以下任何错误/警告都不应该导致应用程序挂起或变白——我以前见过所有这些，没有一个会影响应用程序。我研究过的大多数似乎都是善意的。
2020-02-24 16:33:28.729280-0500 myApp[14811:15566848] Apache Cordova native platform version 5.0.1 is starting.
2020-02-24 16:33:28.729542-0500 myApp[14811:15566848] Multi-tasking -> Device: YES, App: YES
2020-02-24 16:33:28.790743-0500 myApp[14811:15566848] Using UIWebView
2020-02-24 16:33:28.793978-0500 myApp[14811:15566848] [CDVTimer][console] 0.138044ms
2020-02-24 16:33:28.794282-0500 myApp[14811:15566848] [CDVTimer][handleopenurl] 0.170946ms
2020-02-24 16:33:28.797984-0500 myApp[14811:15566848] Unlimited access to network resources
2020-02-24 16:33:28.798184-0500 myApp[14811:15566848] [CDVTimer][intentandnavigationfilter] 3.751993ms
2020-02-24 16:33:28.798528-0500 myApp[14811:15566848] [CDVTimer][gesturehandler] 0.252962ms
2020-02-24 16:33:28.799284-0500 myApp[14811:15566848] [CDVTimer][admob] 0.651956ms
2020-02-24 16:33:28.799605-0500 myApp[14811:15566848] Starting Facebook Connect plugin
2020-02-24 16:33:28.799703-0500 myApp[14811:15566848] [CDVTimer][facebookconnectplugin] 0.335932ms
2020-02-24 16:33:28.803213-0500 myApp[14811:15566848] [CDVTimer][file] 3.353000ms
2020-02-24 16:33:28.803581-0500 myApp[14811:15566848] Starting Firebase plugin
2020-02-24 16:33:28.810921-0500 myApp[14811:15566848] [CDVTimer][firebaseplugin] 7.617950ms
2020-02-24 16:33:28.811294-0500 myApp[14811:15566848] [CDVTimer][inappbrowser] 0.249028ms
2020-02-24 16:33:28.811595-0500 myApp[14811:15566848] [CDVTimer][uiinappbrowser] 0.189900ms
2020-02-24 16:33:28.811863-0500 myApp[14811:15566848] [CDVTimer][wkinappbrowser] 0.159979ms
2020-02-24 16:33:28.812128-0500 myApp[14811:15566848] CDVIonicKeyboard: resize mode 1
2020-02-24 16:33:28.814081-0500 myApp[14811:15566848] CDVIonicKeyboard: WARNING!!: Keyboard plugin works better with WK
2020-02-24 16:33:28.814370-0500 myApp[14811:15566848] [CDVTimer][keyboard] 2.269983ms
2020-02-24 16:33:28.821986-0500 myApp[14811:15567042] registerForRemoteNotifications
2020-02-24 16:33:28.830875-0500 myApp[14811:15566848] [CDVTimer][splashscreen] 16.288996ms
2020-02-24 16:33:28.842044-0500 myApp[14811:15566848] [CDVTimer][statusbar] 11.017084ms
2020-02-24 16:33:28.842496-0500 myApp[14811:15566848] [CDVTimer][diagnostic] 0.326037ms
2020-02-24 16:33:28.844525-0500 myApp[14811:15566848] [CDVTimer][diagnostic_location] 1.947999ms
2020-02-24 16:33:28.844721-0500 myApp[14811:15566848] [CDVTimer][diagnostic_notifications] 0.103951ms
2020-02-24 16:33:28.844770-0500 myApp[14811:15566848] [CDVTimer][TotalPluginStartup] 51.038027ms
2020-02-24 16:33:28.857988-0500 myApp[14811:15566848] GoogleService-Info.plist found, setup: [FIRApp configureWithOptions]
2020-02-24 16:33:28.889418-0500 myApp[14811:15566848] [MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2020-02-24 16:33:28.890284-0500 myApp[14811:15566848] [MC] Reading from public effective user settings.
2020-02-24 16:33:28.961518-0500 myApp[14811:15567038] [NetworkInfo] Signal strength query returned error: Error Domain=NSPOSIXErrorDomain Code=13 "Permission denied", descriptor: <CTServiceDescriptor 0x280e2fda0, domain=1, instance=1>
2020-02-24 16:33:29.071782-0500 myApp[14811:15567057] Metal GPU Frame Capture Enabled
2020-02-24 16:33:29.079541-0500 myApp[14811:15567057] Metal API Validation Enabled
2020-02-24 16:33:29.249063-0500 myApp[14811:15567059] 6.3.0 - [Firebase/Messaging][I-FCM001000] FIRMessaging Remote Notifications proxy enabled, will swizzle remote notification receiver handlers. If you'd prefer to manually integrate Firebase Messaging, add "FirebaseAppDelegateProxyEnabled" to your Info.plist, and set it to NO. Follow the instructions at:
https://firebase.google.com/docs/cloud-messaging/ios/client#method_swizzling_in_firebase_messaging
to ensure proper integration.
2020-02-24 16:33:29.251884-0500 myApp[14811:15567059] 6.3.0 - [Firebase/Analytics][I-ACS025028] AdMob and Firebase are in use in this app, but are not linked. For analytics data consistency and integrity, it is highly recommended that you link your AdMob app to the corresponding Firebase app and re-download the GoogleServices-Info.plist file. See https://support.google.com/admob/answer/6383165 for more information.
2020-02-24 16:33:29.255383-0500 myApp[14811:15567059] 6.3.0 - [Firebase/Analytics][I-ACS023007] Analytics v.60002000 started
2020-02-24 16:33:29.255771-0500 myApp[14811:15567059] 6.3.0 - [Firebase/Analytics][I-ACS023008] To enable debug logging set the following application argument: -FIRAnalyticsDebugEnabled
2020-02-24 16:33:29.270990-0500 myApp[14811:15567042] _hasPermission: YES
2020-02-24 16:33:29.283845-0500 myApp[14811:15566848] didReceiveRegistrationToken: fOrgQHaXCTQ:APA91bFfK-xz7DpwU8AvnoXQybZY6xDawTkVwj6GtJGCbRDRz9E7IIyEvf0wycPIWffthW1J1p8JmafLu32WGWhvCJ8aoUT_cKMNERQ6fQ_7xjL-veEK5F7sPMc7BUEjee3cEbkKThSY
2020-02-24 16:33:29.293043-0500 myApp[14811:15566848] FCM direct channel = true
2020-02-24 16:33:29.303036-0500 myApp[14811:15566848] FB Hybrid app events cannot be enabled, this feature requires WKWebView
2020-02-24 16:33:29.309203-0500 myApp[14811:15567057] [NetworkInfo] Signal strength query returned error: Error Domain=NSPOSIXErrorDomain Code=13 "Permission denied", descriptor: <CTServiceDescriptor 0x280e3b9c0, domain=1, instance=1>
2020-02-24 16:33:29.392367-0500 myApp[14811:15567038] 6.3.0 - [Firebase/Analytics][I-ACS025026] Deferring to Firebase for event data collection
2020-02-24 16:33:29.403092-0500 myApp[14811:15566848] didRegisterForRemoteNotificationsWithDeviceToken: <70ad34cb 9dac7233 966cd8b7 d1612273 03bad35a f08c430a bf1ed4c7 a257bac9>
2020-02-24 16:33:29.433757-0500 myApp[14811:15566848] Resetting plugins due to page load.
2020-02-24 16:33:29.434371-0500 myApp[14811:15566848] IAB.close() called but it was already closed.
2020-02-24 16:33:29.434464-0500 myApp[14811:15566848] IAB.close() called but it was already closed.
2020-02-24 16:33:29.457026-0500 myApp[14811:15566848] Failed to load webpage with error: The operation couldn’t be completed. (NSURLErrorDomain error -999.)
2020-02-24 16:33:29.470218-0500 myApp[14811:15566848] Resetting plugins due to page load.
2020-02-24 16:33:29.470385-0500 myApp[14811:15566848] IAB.close() called but it was already closed.
2020-02-24 16:33:29.470421-0500 myApp[14811:15566848] IAB.close() called but it was already closed.
2020-02-24 16:33:29.507982-0500 myApp[14811:15567061] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C1.1:2][0x102936400] get output frames failed, state 8196
2020-02-24 16:33:29.508234-0500 myApp[14811:15567061] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C1.1:2][0x102936400] get output frames failed, state 8196
2020-02-24 16:33:29.508700-0500 myApp[14811:15567061] TIC Read Status [1:0x0]: 1:57
2020-02-24 16:33:29.508743-0500 myApp[14811:15567061] TIC Read Status [1:0x0]: 1:57
2020-02-24 16:33:29.701653-0500 myApp[14811:15566848] [NetworkInfo] Signal strength query returned error: Error Domain=NSPOSIXErrorDomain Code=13 "Permission denied", descriptor: <CTServiceDescriptor 0x280e572c0, domain=1, instance=1>
2020-02-24 16:33:29.713627-0500 myApp[14811:15567056] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C2.1:2][0x1028093c0] get output frames failed, state 8196
2020-02-24 16:33:29.717303-0500 myApp[14811:15567056] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C2.1:2][0x1028093c0] get output frames failed, state 8196
2020-02-24 16:33:29.718170-0500 myApp[14811:15567056] TIC Read Status [2:0x0]: 1:57
2020-02-24 16:33:29.718216-0500 myApp[14811:15567056] TIC Read Status [2:0x0]: 1:57
2020-02-24 16:33:29.719928-0500 myApp[14811:15567056] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C3.1:2][0x1028270e0] get output frames failed, state 8196
2020-02-24 16:33:29.720165-0500 myApp[14811:15567056] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C3.1:2][0x1028270e0] get output frames failed, state 8196
2020-02-24 16:33:29.720718-0500 myApp[14811:15567056] TIC Read Status [3:0x0]: 1:57
2020-02-24 16:33:29.720805-0500 myApp[14811:15567056] TIC Read Status [3:0x0]: 1:57
2020-02-24 16:33:29.787548-0500 myApp[14811:15567056] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C5.1:2][0x102832530] get output frames failed, state 8196
2020-02-24 16:33:29.788231-0500 myApp[14811:15567056] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C5.1:2][0x102832530] get output frames failed, state 8196
2020-02-24 16:33:29.788608-0500 myApp[14811:15567056] TIC Read Status [5:0x0]: 1:57
2020-02-24 16:33:29.788642-0500 myApp[14811:15567056] TIC Read Status [5:0x0]: 1:57
2020-02-24 16:33:29.914614-0500 myApp[14811:15567109] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C6.1:2][0x102833ed0] get output frames failed, state 8196
2020-02-24 16:33:29.914982-0500 myApp[14811:15567109] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C6.1:2][0x102833ed0] get output frames failed, state 8196
2020-02-24 16:33:29.918861-0500 myApp[14811:15567109] TIC Read Status [6:0x0]: 1:57
2020-02-24 16:33:29.918976-0500 myApp[14811:15567109] TIC Read Status [6:0x0]: 1:57
2020-02-24 16:33:30.569146-0500 myApp[14811:15566848] Finished load of: file:///var/containers/Bundle/Application/1613C55A-6D2F-4B41-A73F-A24DB76501E4/myApp.app/www/index.html
我曾经在Cordova的一个应用程序中遇到过类似的问题(使用ExtJS框架而非Ionic编写(，该应用程序会挂在启动屏幕后，主要是在iOS上。
问题
Cordova加载良好，但框架不正常。(不知什么原因(因此，加载了index.html并激发了deviceready事件，但框架是空的，无法启动。
变通办法
我从未找到问题的根源(我怀疑这与你的无关(，但由于deviceready被触发，我在运行时检查框架是否加载，如果没有加载，则重新加载整个应用程序。对于用户的视图，splashscreen只出现一次，然后淡出，屏幕保持白色(当应用程序在后台重新加载时(，然后应用程序出现。
在我的index.html中，类似的东西
function onDeviceReady() {
//...
try {
var isFrameworkLoaded = ....
if (isFrameworkLoaded !== true) {
console.log("onDeviceReady() : FORCE RELOAD");
location.reload(); // Reloads the index.html page, and doesn't reload the splashscreen
return;
}
} catch (e) {
console.warn("onDeviceReady : Error : " + e);
}
}