iOS上的Google Analytics在调度时返回NO，没有调试输出

Question

In trying to implement the Google Analytics SDK for iOS, I've run into two brick walls.

The first one is that after executing this code in application:DidFinishLaunchingWithOptions:

[[GANTracker sharedTracker] startTrackerWithAccountID:@"UA-XXXXXXX-YY"
                                       dispatchPeriod:10
                                             delegate:self];
[[GANTracker sharedTracker] setDebug:YES];

.. and then trying to track anything or call dispatch , no debug messages are logged whatsoever. I've added NSLog lines before and after tracking calls and the code is definitely being reached.

Secondly, when I do try and do a manual dispatch, it returns NO . All the other issues I've seen online are where dispatch returns YES but it's somehow not going through properly. What does one do if dispatch actually returns NO ?

I've tried adding an NSError * reference to the track methods and those actually succeed (no error, function returns YES ). But the events are definitely not being periodically dispatched, since we're seeing nothing on the GA account more than 24 hours later.

EDIT: I've also got NSLog calls in both of the delegate methods ( hitDispatched: and trackerDispatchDidComplete:eventsDispatched:eventsFailedDispatch: ), and neither of those are being called either.

Answer 1

i think you should check this to delegate method of GANTracker

- (void)trackerDispatchDidComplete:(GANTracker *)tracker
              eventsDispatched:(NSUInteger)hitsDispatched
          eventsFailedDispatch:(NSUInteger)hitsFailedDispatch{

//print or check number of events failed or success

}

Answer 2

//Delegate is set to 'nil' instead of class instance which implements the delegate methods.    
[[GANTracker sharedTracker] startTrackerWithAccountID:@"UA-XXXXXXX-YY"
                                   dispatchPeriod:10
                                         delegate:nil];

In your case, assuming that UIApplicationDelegate may be implementing , the message call should set delegate as .

Cheers!!
Amar.

Answer 3

可能是调度依赖于调用线程的运行循环 - 你是否有可能从一个辅助线程运行它，一个在调度假设给你回电时可能不存在的线程？

Answer 4

You've not enabled dryRun have you? Double check with:

[[GANTracker sharedTracker] setDryRun:NO];

Also try dispatchSynchronous, it'll block as it's sending but might help with if things aren't on the same threads:

[[GANTracker sharedTracker] dispatchSynchronous];

Answer 5

Just've checked it from scratch, dispatch perfectly worked meaning

a) your device is somehow different (i still have unsolved crashes on the particular iPad's 3 from Apple tester's unresolved, so it wouldn't be a huge surprise)

b) your code is somehow different - and that's much easier for you to fix.

---

For the a) there's no advice but to test it against all the devices you might get, for the b) i could only say what worked for me:

• downloaded 1.4 SDK here
• got Google sample projects with git clone https://code.google.com/p/google-mobile-dev.analytics-end-to-end/
• configured final/AnalyticsSample to launch, changed the source slightly

(trackEvent::::: were called from sample, app was restarted manually as there's zero time period requiring dispatch call)

- (BOOL)application:(UIApplication *)application
    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  [[GANTracker sharedTracker] startTrackerWithAccountID:kGANAccountId
                                         dispatchPeriod:0
                                               delegate:self];

    NSLog(@"Dispatch%@", [[GANTracker sharedTracker] dispatch] ? @"ed Successfully": @" Failed");

  [self.window addSubview:tabBarController.view];
  [self.window makeKeyAndVisible];

  return YES;
}

That's it, log says Dispatched Successfully , worth trying i guess.

Answer 6

cough

I'd misspelled the #define to start the tracker object in my app delegate. Other files were spelled correctly, hence the logging statements showing up, but when I tried to log just before the tracker was started it didn't show.

Oops. Well, at least there's a decent troubleshooting post for Google Analytics on SO now!