我试图实现一个单独的类来管理我的位置。每当我点击一个按钮时,我都想获得我的位置。CoreLocation经理没有更新位置
gpsFilter.h
#import <Foundation/Foundation.h>
#import <CoreLocation/CoreLocation.h>
@interface gpsFilter : NSObject <CLLocationManagerDelegate>
@property (nonatomic, retain) CLLocationManager *gpsManager;
@property (nonatomic, retain) NSString * latitude;
@property (nonatomic, retain) NSString * longitude;
@end
gpsFilter.m
。
#import "gpsFilter.h"
@implementation gpsFilter
- (id) init{
self = [super init];
if(self != nil){
self.gpsManager = [[CLLocationManager alloc] init];
self.gpsManager.delegate = self;
[self.gpsManager startUpdatingLocation];
BOOL enable = [CLLocationManager locationServicesEnabled];
NSLog(@"%@", enable? @"Enabled" : @"Not Enabled");
}
return self;
}
- (void)gpsManager:(CLLocationManager *) manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{
NSLog(@"didUpdateToLocation: %@", newLocation);
CLLocation *currentLocation = newLocation;
if(currentLocation != nil){
self.latitude = [NSString stringWithFormat:@"%.8f", currentLocation.coordinate.longitude];
self.longitude = [NSString stringWithFormat:@"%.8f", currentLocation.coordinate.latitude];
}
}
- (void)gpsManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
NSLog(@"didFailWithError: %@", error);
}
@end
我正在使用一个单独的类,因为我想在未来添加平滑过滤器。我没有得到任何更新。 NSLog从不被触发。我认为一些变量正在自动释放,但我不确定哪一个。
viewController代码如下。
#import "gpstestViewController.h"
@interface gpstestViewController(){
}
@end
@implementation gpstestViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.location = [[gpsFilter alloc] init];
// Do any additional setup after loading the view, typically from a nib.
}
- (IBAction)getloca:(id)sender {
self.latitudeLabel.text = [self.location latitude];
self.longitudeLabel.text = [self.location longitude];
}
- (IBAction)getLocation:(id)sender {
self.latitudeLabel.text = [self.location latitude];
self.longitudeLabel.text = [self.location longitude];
}
@end
我很抱歉,我倾倒了大量的代码,但我是一个新手到iOS编程,我无法找到是什么问题。
编辑:updateLocation委托方法根本没有被调用。
Upvoted,因为原因有点隐藏,你现在有足够的信誉来upvote正确的答案。 – AlexWien 2013-02-13 17:00:20