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語境崩潰中的OpenURL：可能的Facebook SDK的bug的iOS 9
我使用FBSDKLoginButton與我的應用程序。我在Xcode 7.0上，我的iPhone運行的是iOS 9 beta 3.我遵循Facebook顯示的每一步（創建應用程序等），並按照添加按鈕的步驟操作，如https://developers.facebook.com/docs/facebook-login/ios#login-button。
正如我在iOS 9，我有一些細微的變化添加到info.plist文件，從而實現跨應用開放：
<key>LSApplicationQueriesSchemes</key>
<array>
<string>fbauth</string>
</array>
而且由於從UIAppDelegate的openURL方法改變了iOS9，我改變了openURL代碼段從實這提供：
func application(application: UIApplication,
openURL url: NSURL,
sourceApplication: String?,
annotation: AnyObject?) -> Bool {
return FBSDKApplicationDelegate.sharedInstance().application(
application,
openURL: url,
sourceApplication: sourceApplication,
annotation: annotation)
}
這樣：
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)
}
問題&問題 所以在這裏我的問題是，即使一切完美（我指的是整個登錄按鈕過程加上來自Facebook的圖形獲取用戶數據）當我運行從模擬器或直接應用在我的iPhone上從XCode，我做有一個問題，當我運行我的應用程序相同的過程，但這次從檔案安裝。我曾嘗試使用存檔的IPA文件從OTA應用程序或與Xcode組織者一起安裝的應用程序。在這兩種情況下，當Facebook返回到我的應用程序時，我收到崩潰。由於我無法使用Xcode的調試器，我只有一個崩潰日誌。
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
看來，當Facebook的回調我的應用程序在我AppDelegate的openURL方法發生崩潰。如上所述，從iOS9開始，有兩種方法可以對這種方法進行編碼，並且我嘗試了這兩種方法。如果我刪除方法內的Facebook代碼，那麼我不會崩潰，但我不登錄。所以崩潰的線是Facebook的路線。它只會崩潰，如果我的應用程序從檔案安裝。有任何想法嗎？可能Facebook的SDK在這個特定情況下有一個錯誤？
謝謝。這是拯救我的一天。 –
@Valentin Mercier，我使用的是客觀的C，我也面臨類似的問題。如果我從我的機器運行構建，它不會崩潰，但是當我從同事構建運行相同的構建時，它會崩潰。所以你可以就此提出建議。 – Ranjit