About the use of google analytics SDK iOS few questions

Parameters did not understand what you mean?
1, anonymizeIp:
2, sampleRate:

Do with English or Chinese translation did not understand what it says is meant

Methods:
1, - (BOOL) dispatchSynchronous: (NSTimeInterval) timeout
What is the role of this method?
2, - (BOOL) trackEvent: (NSString *) category
action: (NSString *) action
label: (NSString *) label
value: (NSInteger) value
withError: (NSError **) error;
This should be set up to track how the event "classification" and "action"? (NSString how both are set to track which events)
3, - (BOOL) trackPageview: (NSString *) pageURL
withError: (NSError **) error;
This does not understand how to determine the role of a viewController page in the app is to use and want to track viewController pageURL in the class set the appropriate class name?

Little information online, no way to talk about the trouble that we only have 39 minutes of ah
Reply:
Solving ah

Reply:
Solving ah
Reply:

The reply was deleted at the moderator 2012-05-24 12:52:24

Reply:
Why nobody posts back to it every time? Is it too simple?
Reply:
How did people do? Sudden death
1, anonymizeIp: This parameter is not understood how it was. The official comment is this:
/ / If the anonymizeIp flag is set, the SDK will anonymize information sent to
/ / Google Analytics by setting the last octet of the IP address to zero prior
/ / To its storage and / or submission.
/ / By default, the anonymizeIp flag is disabled.
Reply:
anonymizeIp time tracking statistics do not track the specific ip address. approach is to rewrite the last one target ip address is 0.
Reply:

references 6th Floor reply:

anonymizeIp time tracking statistics do not track the specific ip address last one method is to rewrite the target ip address is 0.

Thank you, hands brought 39 points