我如何獲得確切的座標使用iPhone CLLocationManager

我正在使用CLLocationManager * locationManager和獲取座標，但這些座標不是精確的谷歌地圖座標。我如何獲得確切的座標使用iPhone CLLocationManager

iPhone座標以下 < + 26.86126232，+ 75.75962328> +/-100.00米（速度-1.00 MPS /當然-1.00）

谷歌地圖座標相同設備的位置處的座標以下 < + 26.860524，+ 75.761569>

谷歌地圖座標是正確的，但iPhone的座標是錯誤的這些是從谷歌地圖的確切座標100米。

我如何得到確切的座標。

// MyCLController.h 
// mapCurrentLocation 
// 
// Created by mac on 18/11/11. 
// Copyright 2011 __MyCompanyName__. All rights reserved.

#import <Foundation/Foundation.h> 
    @protocol MyCLControllerDelegate 
    @required 
- (void)locationUpdate:(CLLocation *)location; 
- (void)locationError:(NSError *)error; 
    @end 


@interface MyCLController : NSObject<CLLocationManagerDelegate> { 
    IBOutlet UILabel *locationLabel; 
CLLocationManager *locationManager; 
id delegate; 
} 
@property (nonatomic, retain) CLLocationManager *locationManager; 
@property (nonatomic, assign) id delegate; 
- (void)locationManager:(CLLocationManager *)manager 
    didUpdateToLocation:(CLLocation *)newLocation 
      fromLocation:(CLLocation *)oldLocation; 

- (void)locationManager:(CLLocationManager *)manager 
    didFailWithError:(NSError *)error; 
@end 



// 
// MyCLController.m 
// mapCurrentLocation 
// 
// Created by mac on 18/11/11. 
// Copyright 2011 __MyCompanyName__. All rights reserved. 
// 

#import "MyCLController.h" 


@implementation MyCLController 
@synthesize locationManager; 
@synthesize delegate; 

- (id) init { 
self = [super init]; 
if (self != nil) { 
    self.locationManager = [[[CLLocationManager alloc] init] autorelease]; 
    self.locationManager.delegate = self; // send loc updates to myself 
} 
return self; 
} 

- (void)locationManager:(CLLocationManager *)manager 
    didUpdateToLocation:(CLLocation *)newLocation 
      fromLocation:(CLLocation *)oldLocation 
{ 
    // NSLog(@"Location: %@", [newLocation description]); 
    [self.delegate locationUpdate:newLocation]; 
} 

- (void)locationManager:(CLLocationManager *)manager 
     didFailWithError:(NSError *)error 
{ 
    //NSLog(@"Error: %@", [error description]); 
    [self.delegate locationError:error]; 
} 

- (void)dealloc { 
    [self.locationManager release]; 
    [super dealloc]; 
} 

@end 



and here i am using this class-- 

#import "mapCurrentLocationViewController.h" 

@implementation mapCurrentLocationViewController 



/* 
// The designated initializer. Override to perform setup that is required before the view is loaded. 
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     // Custom initialization 
    } 
    return self; 
} 
*/ 

- (void)viewDidLoad { 
    locationController = [[MyCLController alloc] init]; 
    locationController.delegate = self; 
    [locationController.locationManager startUpdatingLocation]; 

} 
- (void)locationUpdate:(CLLocation *)location { 
    locationLabel.text = [location description]; 
} 

- (void)locationError:(NSError *)error { 
    locationLabel.text = [error description]; 
} 
- (void)dealloc { 
    [locationController release]; 
    [super dealloc]; 
} 
@end

來源

2011-12-06 priya

那麼你現在如何獲得座標？至少需要顯示一些代碼。 – Luke

- （void）viewDidLoad { \t \t locationController = [[MyCLController alloc] init]; \t locationController.delegate = self; [locationController.locationManager startUpdatingLocation]; } - （void）dealloc \t [locationController release]; [super dealloc]; } - （void）locationUpdate：（CLLocation *）location {location} {locationLabel.text = [location description]; } - （void）locationError：（NSError *）error {0} 0} locationLabel.text = [error description]; } – priya

在MyCLController類中，我定義了委託並創建了CLLocationManager * locationManager的對象。這個課程來自示例。 – priya

爲了得到最準確的可能位置測量，您startUpdatingLocation之前設置locationManager.desiredAccuracy = kCLLocationAccuracyBest;。

此外，請檢查CLLocation對象的timestamp和horizontalAccuracy，這些對象將交付給locationManager:didUpdateToLocation:fromLocation:。如果位置測量看起來像比您想要的要舊或不準確，請設置一個計時器並等待傳送更多位置測量值。核心位置通常會快速傳遞緩存和/或不精確的位置，然後跟進更精確的精確位置測量。

來源

2011-12-06 20:36:38 cduhn

我如何獲得確切的座標使用iPhone CLLocationManager

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