core-location
Sometimes I receive the wrong GPS location
Sometimes I receive the wrong value for my current location, an error of up to 2 miles. Am I doing everything correctly?[详细]
2023-02-19 17:37 分类：问答how to tell an iOS device to stop remembering / forget location services preference for a specific app
I want to test the behavior of a \"first-time\" app install with regard to location services. The problem is, my iPhone 4 Settings app \"remembers\" my app\'s location services preference, even after[详细]
2023-02-19 15:30 分类：问答How to find the current location in iPhone?
I have written the following code to find the current location. It works well and prints the current location when I print lat2 and logg2 below in NSLOg, but it is not ass开发者_运维问答igning value t[详细]
2023-02-19 10:36 分类：问答How does apps like foursquare or gowalla implement their check-in feature?
If I had to build my own check-in feature from scratc开发者_如何转开发h, how would I go about it? I was thinking that once a location is determined using corelocations, I can add that location co-ordi[详细]
2023-02-18 22:42 分类：问答Objective-C for Dummies: How to change the region without invoking mapView:regionDidChangeAnimated?
so I have my self a conundrum. I\'m changing the region of an MKMapView in code, which works, however it invokes the mapView:regionDidChangeAnimated which cancels my check if the user is the one actua[详细]
2023-02-17 22:11 分类：问答Smoothing data received from CoreLocation
I\'m trying to develop an app which allows you to walk around, and where you walked will be drawn on a map. I have开发者_JS百科 this all working fine, but I\'m finding that even with a reasonably accu[详细]
2023-02-17 20:56 分类：问答Objective-C for Dummies: How to make App Delegate communicate with Controllers?
how can I invoke methods in my controllers from within the app delegate. For example, my application uses the app delegate to monitor the user\'s location. After the location has been determined I wan[详细]
2023-02-17 20:54 分类：问答Get CLLocation coordinate from a method
I follow a tutorial from http://www.vellios.com/2010/08/16/core-location-gps-tutorial/ to make an app to show user\'s current location.[详细]
2023-02-16 14:34 分类：问答Method not getting called (Core Location) Cocoa Touch
Hey guys, I\'m trying to call the update method but its not working, any idea? #import \"TrackerViewController.h\"[详细]
2023-02-16 02:48 分类：问答Iphone, how save coordinate gps in background? [duplicate]
This question already has an answer here: Closed 11 years ago. Possible Duplicate: Is background GPS\\location logging possible on iPhone 4 or 3GS running on开发者_如何学C iOS4[详细]
2023-02-15 13:23 分类：问答
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