简化,代码是这样的:
func login() {
NSLog("Will login with read permissions")
FBSDKLoginManager().logInWithReadPermissions(
["public_profile"],
handler: {
(result: FBSDKLoginManagerLoginResult!, error: NSError!) -> Void in
NSLog("Handler is called")
})
NSLog("Returning from login")
}
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调用它时,它会生成以下日志语句:
2015-05-25 11:35:07.886 MyApp[1213:646722] Will login with read permissions
2015-05-25 11:44:22.048 MyApp[1213:646722] Returning from login
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(上面的语句之间的大的时间差异是由于我使用调试器来逐步执行logInWithReadPermissions的内部.没有调试器的运行不会改变行为.)
我已经在安装了Facebook原生应用程序并且我已登录的设备上试过这个,我在没有本机应用程序的设备上试过这个,我从来没有访问过Facebook.我也在模拟器上试过这个.我得到了相同的结果.
我假设这是一个同步调用,但为了以防万一,我试着在调用线程中无限期地等待 - 处理程序仍然没有被调用,并且设备上没有任何可见的事情发生.
我打开了我能找到的所有日志记录:
FBSDKSettings.setLoggingBehavior(
[FBSDKLoggingBehaviorAppEvents,
FBSDKLoggingBehaviorInformational,
FBSDKLoggingBehaviorAccessTokens,
FBSDKLoggingBehaviorUIControlErrors,
FBSDKLoggingBehaviorGraphAPIDebugWarning,
FBSDKLoggingBehaviorGraphAPIDebugInfo,
FBSDKLoggingBehaviorNetworkRequests,
FBSDKLoggingBehaviorCacheErrors,
FBSDKLoggingBehaviorDeveloperErrors])
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然后,在启动时,我得到这样的:
2015-05-25 11:35:01.320 MyApp[1213:646722] FBSDKLog: Request <#1111>:
URL: https://graph.facebook.com/v2.3
Method: POST
UserAgent: FBiOSSDK.4.1.0
MIME: multipart/form-data; boundary=3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f
Body (w/o attachments):
batch_app_id: 140xxxxxxxxxxxxx …Run Code Online (Sandbox Code Playgroud)