如何獲得iphone中重要位置更新的準確性？

Question

如何知道iPhone中重要位置更新的準確性？作爲標準位置，人們可以根據可設置的參數來設置精度等級，但重要的位置精度無法爲精度設置，但如何讀取接收位置更新的精度？

Answer 1

類CLLocationManager有一個準確性參數，稱爲desiredAccuracy它是類CLLocationAccuracy。但保持！它不是一類，它是一個typedef double所以這裏的常量

extern const CLLocationAccuracy kCLLocationAccuracyBestForNavigation __OSX_AVAILABLE_STARTING(__MAC_10_7,__IPHONE_4_0); 
extern const CLLocationAccuracy kCLLocationAccuracyBest; 
extern const CLLocationAccuracy kCLLocationAccuracyNearestTenMeters; 
extern const CLLocationAccuracy kCLLocationAccuracyHundredMeters; 
extern const CLLocationAccuracy kCLLocationAccuracyKilometer; 
extern const CLLocationAccuracy kCLLocationAccuracyThreeKilometers; 

我建議你做的是你的位置管理的精度分配到一個新的變量它，它像下面的比較：

CLLocationAccuracy locationAccuracy = self.locationManager.desiredAccuracy; 

if (locationAccuracy == kCLLocationAccuracyBest) { 

    NSLog(@"It is the kCLLocationAccuracyBest my life is complete!"); 
} 
else if (/*other comparisons stuff here*/) { 

} 

此外，你必須輸入：

#import <CoreLocation/CLLocation.h> 

羅漢