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语境崩溃中的OpenURL：可能的Facebook SDK的bug的iOS 9
我使用FBSDKLoginButton与我的应用程序。我在Xcode 7.0上，我的iPhone运行的是iOS 9 beta 3.我遵循Facebook显示的每一步（创建应用程序等），并按照添加按钮的步骤操作，如https://developers.facebook.com/docs/facebook-login/ios#login-button。
正如我在iOS 9，我有一些细微的变化添加到info.plist文件，从而实现跨应用开放：
<key>LSApplicationQueriesSchemes</key>
<array>
<string>fbauth</string>
</array>
而且由于从UIAppDelegate的openURL方法改变了iOS9，我改变了openURL代码段从实这提供：
func application(application: UIApplication,
openURL url: NSURL,
sourceApplication: String?,
annotation: AnyObject?) -> Bool {
return FBSDKApplicationDelegate.sharedInstance().application(
application,
openURL: url,
sourceApplication: sourceApplication,
annotation: annotation)
}
这样：
func application(app: UIApplication, openURL url: NSURL, options: [String : AnyObject]) -> Bool
{
return FBSDKApplicationDelegate.sharedInstance().application(
app,
openURL: url,
sourceApplication: options["UIApplicationOpenURLOptionsSourceApplicationKey"] as? String,
annotation: nil)
}
问题&问题 所以在这里我的问题是，即使一切完美（我指的是整个登录按钮过程加上来自Facebook的图形获取用户数据）当我运行从模拟器或直接应用在我的iPhone上从XCode，我做有一个问题，当我运行我的应用程序相同的过程，但这次从档案安装。我曾尝试使用存档的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返回到我的应用程序时，我收到崩溃。由于我无法使用Xcode的调试器，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, openURL : ObjectiveC.NSURL, 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
看来，当Facebook的回调我的应用程序在我AppDelegate的openURL方法发生崩溃。如上所述，从iOS9开始，有两种方法可以对这种方法进行编码，并且我尝试了这两种方法。如果我删除方法内的Facebook代码，那么我不会崩溃，但我不登录。所以崩溃的线是Facebook的路线。它只会崩溃，如果我的应用程序从档案安装。有任何想法吗？可能Facebook的SDK在这个特定情况下有一个错误？
谢谢。这是拯救我的一天。 –
@Valentin Mercier，我使用的是客观的C，我也面临类似的问题。如果我从我的机器运行构建，它不会崩溃，但是当我从同事构建运行相同的构建时，它会崩溃。所以你可以就此提出建议。 – Ranjit