Question

我开始将Goole Analytics v2.0beta3用于iOS原生应用。我使用以下代码开始会话：

[GAI sharedInstance].trackUncaughtExceptions = YES;
[GAI sharedInstance].dispatchInterval = 20;
[GAI sharedInstance].debug = YES;
id<GAITracker> tracker = [[GAI sharedInstance] trackerWithTrackingId:@"UA-XXXX-X"];
[GAI sharedInstance].defaultTracker = tracker; 
[tracker setAnonymize:YES];
BOOL res = [tracker trackEventWithCategory:@"cat" withAction:@"act" withLabel:@"label" withValue:[NSNumber numberWithInt:1]];
[[GAI sharedInstance] dispatch];

但是，我不知道如何结束会话，我得到的会话持续时间总是0.0

有没有人遇到过这个问题？

谢谢

Answer 1

我会检查并查看您的跟踪器是否设置正确。我的设置代码如下

[GAI sharedInstance].debug = YES;
[GAI sharedInstance].dispatchInterval = 20;
[GAI sharedInstance].trackUncaughtExceptions = YES;
self.tracker = [[GAI sharedInstance] trackerWithTrackingId:kTrackingId];
NSLog(@"what is tracker %@ / default tracker %@?", self.tracker, [GAI sharedInstance].defaultTracker);

其中self.tracker为@property (strong, nonatomic) id <GAITracker> tracker;

我正在获得正确的会话跟踪信息。也许尝试拔出代码，直到找到导致问题的原因？

此外，解决方法可能是这样的。

- (void)applicationDidBecomeActive:(UIApplication *)application
{
    appBecameActive = [NSDate date];
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
    NSDate *appClosing = [NSDate date];
    NSTimeInterval sessionLength = [appClosing timeIntervalSinceDate:appBecameActive];
    [[GAI sharedInstance].defaultTracker trackTimingWithCategory:@"sessionLength"
                                                   withValue:sessionLength
                                                    withName:@"appWentToBackground"
                                                   withLabel:nil];
}

Answer 2

根据Google Analytics v3，会话行为发生了变化。如果您在使用最新版本时遇到这些问题，请查看我的修复程序：

https://stackoverflow.com/a/26882024/1485701

Google Analytics v2 iOS - 会话持续时间始终为0.0

2 个答案: