上下文
我在我的应用程序中使用FBSDKLoginButton.我在Xcode 7.0上,我的iPhone运行的是iOS 9 beta 3.我按照Facebook显示的每一步(创建应用程序等),然后按照https://developers.facebook.com/docs/facebook-login/ios#login-button中的步骤添加按钮.
由于我在iOS 9上,我不得不对info.plist文件添加一些小的更改以启用跨应用程序打开：
<key>LSApplicationQueriesSchemes</key>
<array>
<string>fbauth</string>
</array>
并且由于UIAppDelegate的openURL方法在iOS9上发生了变化,我改变了Facebook提供的openURL代码片段：
func application(application: UIApplication,openURL url: NSURL,sourceApplication: String?,annotation: AnyObject?) -> Bool {
return FBSDKApplicationDelegate.sharedInstance().application(
application,openURL: url,sourceApplication: sourceApplication,annotation: annotation)
}
对此：
func application(app: UIApplication,options: [String : AnyObject]) -> Bool
{
return FBSDKApplicationDelegate.sharedInstance().application(
app,sourceApplication: options["UIApplicationOpenURLOptionsSourceApplicationKey"] as? String,annotation: nil)
}
问题与发展题
所以我的问题在于,即使一切工作完美(我的意思是整个登录按钮流程以及从Facebook图表中获取用户数据),当我从模拟器运行应用程序或直接从我的iPhone从XCode运行时,我确实遇到了问题我使用我的应用程序运行相同的过程,但这次是从存档安装的.我尝试使用存档的IPA文件从OTA应用程序或与Xcode组织者一起安装的应用程序.在这两种情况下,当Facebook返回我的应用程序时,我遇到了崩溃.由于我不能使用Xcode的调试器,所以我只有一个崩溃日志.
Incident Identifier: 842E980C-8DE0-485F-8B3E-8CD889D34B3B CrashReporter Key: 3e77866746471e437b9174c6082fc9136a18514f Hardware Model: iPhone7,2 Process: Process Name [1086] Path: /private/var/mobile/Containers/Bundle/Application/AA43C098-DFC0-483C-A073-C2401078E9FC/Some App.app/someapp Identifier: fr.someapp.Some-App Version: 1 (1.0) Code Type: ARM-64 (Native) Parent Process: launchd [1] Date/Time: 2015-07-19 20:18:41.41 +0200 Launch Time: 2015-07-19 20:18:35.35 +0200 OS Version: iOS 9.0 (13A4293g) Report Version: 105 Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000001,0x000000010005f6e4 Triggered by Thread: 0 Filtered syslog: None found Global Trace Buffer (reverse chronological seconds): 0.228132 AppleJPEG 0x000000018dba5008 [0x13e871e00] Decoding completed without errors 0.250546 AppleJPEG 0x000000018dba31a0 [0x13e871e00] Options: 1080x1920 [FFFFFFFF,FFFFFFFF] 00025060 0.250629 AppleJPEG 0x000000018dba3058 [0x13e871e00] Decoding: C0 0x04380780 0x0044304A 0x22111100 0x00000000 175592 0.256474 AppleJPEG 0x000000018dba5008 [0x13e867200] Decoding completed without errors 0.261051 AppleJPEG 0x000000018dba31a0 [0x13e867200] Options: 750x1334 [FFFFFFFF,FFFFFFFF] 00025060 0.261101 AppleJPEG 0x000000018dba3058 [0x13e867200] Decoding: C0 0x02EE0536 0x002F304A 0x22111100 0x00000000 75882 0.262141 AppleJPEG 0x000000018dba5008 [0x13e85c600] Decoding completed without errors 0.272075 AppleJPEG 0x000000018dba31a0 [0x13e85c600] Options: 750x1334 [FFFFFFFF,FFFFFFFF] 00025060 0.272281 AppleJPEG 0x000000018dba3058 [0x13e85c600] Decoding: C0 0x02EE0536 0x002F304A 0x22111100 0x00000000 108826 0.273070 AppleJPEG 0x000000018dba5008 [0x13f04bc00] Decoding completed without errors 0.283798 AppleJPEG 0x000000018dba31a0 [0x13f04bc00] Options: 750x1334 [FFFFFFFF,FFFFFFFF] 00025060 0.283798 AppleJPEG 0x000000018dba3058 [0x13f04bc00] Decoding: C0 0x02EE0536 0x002F304A 0x22111100 0x00000000 72967 5.783070 CFNetwork 0x0000000186041d44 TCP Conn 0x13e5a1b90 SSL Handshake DONE 5.874750 CFNetwork 0x0000000186041c54 TCP Conn 0x13e5a1b90 starting SSL negotiation 5.875481 CFNetwork 0x00000001860e0e14 TCP Conn 0x13e5a1b90 complete. fd: 6,err: 0 5.876954 CFNetwork 0x00000001860e21e4 TCP Conn 0x13e5a1b90 event 1. err: 0 5.984181 CFNetwork 0x00000001860e22f8 TCP Conn 0x13e5a1b90 started 5.992333 CFNetwork 0x0000000186137140 Creating default cookie storage with default identifier 5.992333 CFNetwork 0x000000018613710c Faulting in CFHTTPCookieStorage singleton 5.992562 CFNetwork 0x0000000186188068 Faulting in NSHTTPCookieStorage singleton 6.189612 AppleJPEG 0x000000018dba234c [0x13e871e00] Created session 6.190797 AppleJPEG 0x000000018dba234c [0x13e867200] Created session 6.192109 AppleJPEG 0x000000018dba234c [0x13e85c600] Created session 6.197484 AppleJPEG 0x000000018dba234c [0x13f04bc00] Created session Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 Some app 0x000000010005f6e4 function signature specialization <Arg[0] = Owned To Guaranteed,Arg[1] = Owned To Guaranteed,Arg[2] = Owned To Guaranteed and Exploded,Arg[3] = Dead> of Some_App.AppDelegate.application (Some_App.AppDelegate)(ObjectiveC.UIApplication,openURL : ObjectiveC.NSURL,options : [Swift.String : Swift.AnyObject]) -> Swift.Bool (AppDelegate.swift:100) 1 Some_app 0x000000010005e7a8 @objc Some_App.AppDelegate.application (Some_app.AppDelegate)(ObjectiveC.UIApplication,options : [Swift.String : Swift.AnyObject]) -> Swift.Bool (AppDelegate.swift:0) 2 UIKit 0x000000018c1ee664 0x18bf34000 + 2860644 3 UIKit 0x000000018c1ee168 0x18bf34000 + 2859368 4 UIKit 0x000000018c1f5c30 0x18bf34000 + 2890800 5 UIKit 0x000000018c1fb644 0x18bf34000 + 2913860 6 UIKit 0x000000018c1fa9dc 0x18bf34000 + 2910684 7 UIKit 0x000000018c1e6fd4 0x18bf34000 + 2830292 8 UIKit 0x000000018c1e6eb4 0x18bf34000 + 2830004 9 FrontBoardServices 0x00000001905ffbe0 0x1905d8000 + 162784 10 FrontBoardServices 0x00000001905fff60 0x1905d8000 + 163680 11 CoreFoundation 0x00000001868eb8b4 0x18680c000 + 915636 12 CoreFoundation 0x00000001868eb348 0x18680c000 + 914248 13 CoreFoundation 0x00000001868e901c 0x18680c000 + 905244 14 CoreFoundation 0x00000001868157fc 0x18680c000 + 38908 15 GraphicsServices 0x00000001918a316c 0x191898000 + 45420 16 UIKit 0x000000018bfae5e4 0x18bf34000 + 501220 17 Some app 0x000000010005eaa4 main (AppDelegate.swift:14) 18 libdyld.dylib 0x000000019bb128b4 0x19bb10000 + 10420
似乎当Facebook回拨我的应用程序时,崩溃发生在我的AppDelegate的openURL方法中.如上所述,从iOS9开始,有两种方法可以对此方法进行编码,我尝试了两种方法.如果我删除方法中的Facebook代码,那么我不会崩溃,但我不登录.所以崩溃的线是Facebook的线.如果我的应用程序是从存档安装的,它只会崩溃.有任何想法吗？也许Facebook的SDK在这个特例上有错误？
解决方法
我找到了答案
看起来它只是一个发布模式问题.通过启用Xcode运行发布版本,我能够调试我的问题.它是由参数sourceApplication引起的,在发布模式下显然需要解包.不知道为什么,但至少我得到它的工作.
func application(app: UIApplication,sourceApplication: options["UIApplicationOpenURLOptionsSourceApplicationKey"] as! String,annotation: nil) }
