iOS8核心位置有问题
iOS8核心位置有问题
提问于 2015-02-12 14:43:18
最近核心位置的使用发生了变化，但是即使在更新到新的规范之后，我似乎也无法让它正常工作。
我尝试开始一个新的项目，只有一个视图控制器，改变它的背景颜色GPS，坐标查找或失败。
#import "ViewController.h"
@interface ViewController (){
CLLocationManager *locationManager;
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
if (locationManager == nil)
{
locationManager = [[CLLocationManager alloc] init];
}
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
if (![CLLocationManager locationServicesEnabled]) {
[self.view setBackgroundColor:[UIColor redColor]];
}
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
[locationManager requestAlwaysAuthorization];
[locationManager startUpdatingLocation];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark CLLocationManagerDelegate
//
//
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation
{
[self.view setBackgroundColor:[UIColor greenColor]];
NSLog(@"lat:%f lon:%f", newLocation.coordinate.latitude, newLocation.coordinate.longitude);
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
//Debug(@"did fail with error. stop updating and return error.");
[self.view setBackgroundColor:[UIColor orangeColor]];
}
@end我加了
<key>NSLocationAlwaysUsageDescription</key>
<string>This app needs your location to provide the best service.</string>到Info.plist文件，但是.没有改变，位置图标出现在电池附近的状态栏上，但是没有任何位置出现，真实的或模拟的。
我是不是遗漏了什么？
回答 1
Stack Overflow用户
回答已采纳
发布于 2015-02-12 14:52:23
尝试添加更改授权方法：
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
// This method has to be here to trigger the UIAlertView
switch (status) {
case kCLAuthorizationStatusDenied:
break;
case kCLAuthorizationStatusRestricted:
break;
case kCLAuthorizationStatusNotDetermined: {
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
[self.locationManager requestAlwaysAuthorization];
}
default:
break;
}
}编辑
您使用了错误的委托方法。didUpdateToLocation已经被否决了。用这个代替：
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/28480363
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