简化一下，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")
}
调用时，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
(上述语句之间的较大时间差异是由于我使用调试器单步执行 logInWithReadPermissions 的内部结构。在没有调试器的情况下运行不会改变行为。)
我已经在安装了 Facebook native 应用程序并登录的设备上尝试过此操作，我也曾在没有 native 应用程序的设备上尝试过此操作，但我根本没有访问过 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，我尝试在调用线程中无限期地等待——处理程序仍然没有被调用，并且设备上没有发生任何可见的事情。
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])
然后，在启动时，我得到以下任一信息:
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
batch: [{"relative_url":"140xxxxxxxxxxxxx?debug=info&fields=app_events_feature_bitmask%2Cname%2Cios_dialog_configs%2Csupports_implicit_sdk_logging%2Cgdpv4_nux_enabled%2Cgdpv4_nux_content%2Cios_supports_system_auth%2Cios_sdk_error_categories&format=json&include_headers=false&sdk=ios","method":"GET"},{"relative_url":"140xxxxxxxxxxxxx?debug=info&fields=app_events_feature_bitmask%2Cname%2Cios_dialog_configs%2Csupports_implicit_sdk_logging%2Cgdpv4_nux_enabled%2Cgdpv4_nux_content%2Cios_supports_system_auth%2Cios_sdk_error_categories&format=json&include_headers=false&sdk=ios","method":"GET"}]
2015-05-25 11:35:01.321 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
2015-05-25 11:35:01.329 MyApp[1213:646722] FBSDKLog: FBSDKTimeSpentData Restore: {"numInterruptions":0,"lastSuspendTime":1432544336,"secondsSpentInCurrentSession":3}
2015-05-25 11:35:01.363 MyApp[1213:646722] FBSDKLog: FBSDKAppEvents: Recording event @ 1432578901: {
"_eventName" = "fb_mobile_activate_app";
"_logTime" = 1432578901;
"_ui" = UIAlertController;
"fb_mobile_launch_source" = Unclassified;
}
2015-05-25 11:35:01.364 MyApp[1213:646722] FBSDKLog: FBSDKAppEvents Persist: Read 0 event states. First state has 0 events
2015-05-25 11:35:01.364 MyApp[1213:646722] FBSDKLog: FBSDKAppEvents Persist: Clearing
2015-05-25 11:35:01.365 MyApp[1213:646722] FBSDKLog: FBSDKAppEvents: Recording event @ 1432578901: {
"_eventName" = "fb_mobile_deactivate_app";
"_logTime" = 1432578901;
"_ui" = UIAlertController;
"_valueToSum" = 3;
"fb_mobile_app_interruptions" = 0;
"fb_mobile_launch_source" = Unclassified;
"fb_mobile_time_between_sessions" = "session_quanta_5";
}
2015-05-25 11:35:01.781 MyApp[1213:646722] FBSDKLog: FBSDKURLConnection <#1114>:
Duration: 460 msec
Response Size: 1 kB
MIME type: application/json
2015-05-25 11:35:01.783 MyApp[1213:646722] FBSDKLog: Response <#1111>
Duration: 461 msec
Size: 2011 kB
Response Body:
(
{
body = {
"app_events_feature_bitmask" = 1;
"gdpv4_nux_content" = "New! You're in control - choose what info you want to share with apps.";
"gdpv4_nux_enabled" = 0;
id = 140xxxxxxxxxxxxx;
"ios_dialog_configs" = {
data = (
{
name = like;
url = "/connect/dialog/MPlatformLikeJSDialog";
versions = (
20140410
);
},
{
name = appinvites;
url = "/connect/dialog/MPlatformAppInvitesJSDialog";
versions = (
20140410
);
}
);
};
"ios_sdk_error_categories" = (
{
items = (
{
code = 102;
},
{
code = 190;
}
);
name = login;
"recovery_message" = "Please log into this app again to reconnect your Facebook account.";
"recovery_options" = (
OK,
Cancel
);
},
{
items = (
{
code = 341;
},
{
code = 9;
},
{
code = 2;
},
{
code = 4;
},
{
code = 17;
}
);
name = transient;
"recovery_message" = "The server is temporarily busy, please try again.";
"recovery_options" = (
OK
);
}
);
"ios_supports_system_auth" = 1;
name = MyApp;
"supports_implicit_sdk_logging" = 1;
};
code = 200;
},
{
body = {
"app_events_feature_bitmask" = 1;
"gdpv4_nux_content" = "New! You're in control - choose what info you want to share with apps.";
"gdpv4_nux_enabled" = 0;
id = 140xxxxxxxxxxxxx;
"ios_dialog_configs" = {
data = (
{
name = like;
url = "/connect/dialog/MPlatformLikeJSDialog";
versions = (
20140410
);
},
{
name = appinvites;
url = "/connect/dialog/MPlatformAppInvitesJSDialog";
versions = (
20140410
);
}
);
};
"ios_sdk_error_categories" = (
{
items = (
{
code = 102;
},
{
code = 190;
}
);
name = login;
"recovery_message" = "Please log into this app again to reconnect your Facebook account.";
"recovery_options" = (
OK,
Cancel
);
},
{
items = (
{
code = 341;
},
{
code = 9;
},
{
code = 2;
},
{
code = 4;
},
{
code = 17;
}
);
name = transient;
"recovery_message" = "The server is temporarily busy, please try again.";
"recovery_options" = (
OK
);
}
);
"ios_supports_system_auth" = 1;
name = MyApp;
"supports_implicit_sdk_logging" = 1;
};
code = 200;
}
)
2015-05-25 11:35:01.841 MyApp[1213:646722] FBSDKLog: Dynamically loaded library at /System/Library/Frameworks/Accounts.framework/Accounts
或者这个:
2015-05-25 12:04:59.336 MyApp[1221:650047] FBSDKLog: FBSDKTimeSpentData Restore: {"numInterruptions":0,"lastSuspendTime":1432544336,"secondsSpentInCurrentSession":3}
2015-05-25 12:04:59.343 MyApp[1221:650047] FBSDKLog: FBSDKAppEvents: Recording event @ 1432580699: {
"_eventName" = "fb_mobile_activate_app";
"_logTime" = 1432580699;
"_ui" = UIAlertController;
"fb_mobile_launch_source" = Unclassified;
}
2015-05-25 12:04:59.344 MyApp[1221:650047] FBSDKLog: FBSDKAppEvents Persist: Read 0 event states. First state has 0 events
2015-05-25 12:04:59.344 MyApp[1221:650047] FBSDKLog: FBSDKAppEvents Persist: Clearing
2015-05-25 12:04:59.345 MyApp[1221:650047] FBSDKLog: FBSDKAppEvents: Recording event @ 1432580699: {
"_eventName" = "fb_mobile_deactivate_app";
"_logTime" = 1432580699;
"_ui" = UIAlertController;
"_valueToSum" = 3;
"fb_mobile_app_interruptions" = 0;
"fb_mobile_launch_source" = Unclassified;
"fb_mobile_time_between_sessions" = "session_quanta_5";
}
无论哪种方式，我的处理程序都不会被调用，但 logInWithReadPermissions 函数返回正常。
我已经在我的 AppDelegate 中实现了以下所有内容:
func application(application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
FBSDKApplicationDelegate.sharedInstance().application(
application,
didFinishLaunchingWithOptions: launchOptions)
}
func applicationDidBecomeActive(application: UIApplication) {
FBSDKAppEvents.activateApp()
}
func application(application: UIApplication,
openURL url: NSURL,
sourceApplication: String?,
annotation: AnyObject?) -> Bool {
return FBSDKApplicationDelegate.sharedInstance().application(
application,
openURL: url,
sourceApplication: sourceApplication,
annotation: annotation)
}
我的 Info.plist 中有这些行:
<array>
<dict>
<key>CFBundleURLSchemes</key>
<array>
<string>fb140xxxxxxxxxxxxx</string>
</array>
</dict>
</array>
<key>FacebookAppID</key>
<string>140xxxxxxxxxxxxx</string>
<key>FacebookDisplayName</key>
<string>MyApp</string>
上面有什么我遗漏的吗？如果没有，我该如何进一步调试呢？我可以打开或关闭任何日志记录吗？我在 XCode 或 Facebook 端的应用程序设置中有任何人能想到我可以查看的内容吗？
最佳答案
你说:
"I tried waiting indefinitely in the calling thread -- the handler is still never called, and nothing visible is happening on the device."
这个调用绝对不是同步的，如果你让主线程在一个紧凑的等待循环中忙碌，那么它就无法“给你回电话”。
另一件要检查的事情是确保您的应用程序委托(delegate)没有同时实现
func application(app: UIApplication, openURL url: NSURL, options: [String : AnyObject]) -> Bool {
如果您在应用委托(delegate)中实现此方法，则其他实现将被忽略:
func application(application: UIApplication,
openURL url: NSURL,
sourceApplication: String?,
annotation: AnyObject?) -> Bool
关于ios - FBSDKLoginManager.loginWithReadPermissions 不在 iOS 上调用处理程序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30444761/