Question

核心位置未调用didUpdateLocations。我有2个类涉及LocationManager和一个视图控制器。 Plist设置为requestAlwaysAuthorization。在调试中模拟位置。任何人都可以帮我发现错误吗？

LocationManager.h

@interface LPLocationManager : NSObject <CLLocationManagerDelegate>

+(LPLocationManager*)sharedManager;

@property (strong, atomic) CLLocationManager *locationManager;
@property (nonatomic, retain) CLLocation *location;
@end

LocationManager.m

+(LPLocationManager*)sharedManager{
    static LPLocationManager *sharedManager = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sharedManager = [[LPLocationManager alloc]init];
    });

    return sharedManager;
}

- (id)init
{
    self = [super init];
    if (self) {
        self.locationManager = [[CLLocationManager alloc]init];
        self.locationManager.delegate = self;
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        self.locationManager.distanceFilter = 10;

    }

    return self;
}

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{


    self.location = [locations lastObject];

    [self setCurrentLocation:self.location];

    NSLog(@"self.location in didupdatelocation %@", self.location);

    [self.locationManager stopUpdatingLocation];

}

ViewController.m（调用startUpdating）

- (void)refresh:(UIRefreshControl *)refreshControl {


    LPLocationManager *locationObject = [LPLocationManager sharedManager];
    NSLog(@"location object %@", locationObject);
    [locationObject.locationManager requestAlwaysAuthorization];
    NSLog(@"locationManager %@", locationObject.locationManager);
    [locationObject.locationManager startUpdatingLocation];
    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
    [center addObserver:self selector:@selector(getLocation:) name:@"locationNotification" object:nil];

    [refreshControl endRefreshing];

}

Answer 1

想出来。

在模拟器中，转到设置 - ＆gt;常规并滚动到重置。点击重置位置＆amp;隐私。

关闭模拟器并重新运行应用程序。返回设置，转到隐私 - ＆gt;位置并为应用选择始终。

Answer 2

在info.plist文件中添加这些键值

<key>NSLocationWhenInUseUsageDescription</key>
<string></string>
<key>NSLocationAlwaysUsageDescription</key>
<string></string>

之后定义此宏

#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)

并将此代码放在viewWillAppear

中

locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;

    if(IS_OS_8_OR_LATER) {
        [locationManager requestAlwaysAuthorization];
    }

[locationManager startUpdatingLocation];

核心位置与Xcode 6模拟器

2 个答案: