我正在尝试将我的某个应用更新为IOS9和Xcode 7.2.1。位置管理器工作在早期版本,但现在无法正常工作。没有错误或警告......没有。看来我的代码没有进入“didUpdateLocations”。我的代码如下;
- (void)setupViewController {
self.locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)])
{
[self.locationManager requestAlwaysAuthorization];
}
locationManager.desiredAccuracy = 100;
//locationManager.requestLocation;
[locationManager startUpdatingLocation];
//return coordinate;
[self performSelector:@selector(stopUpdatingLocation:) withObject:@"Timed Out" afterDelay:5];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
NSLog(@"Doesn't get here.");
self.bestEffortAtLocation = newLocation;
latitudeString = [[NSString alloc] initWithFormat:@"%g", newLocation.coordinate.latitude];
longitudeString = [[NSString alloc] initWithFormat:@"%g", newLocation.coordinate.longitude];
There is other code here that gets city, country, etc.
目前不知道该怎么做。我找了类似的问题而没有找到任何东西。
答案 0 :(得分:1)
问题在于这一行:
- (void)locationManager:(CLLocationManager *)manager
didUpdateLocations:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation {
永远不会调用该方法,因为它对应于no delegate method。您需要实现此方法:
- (void)locationManager:(CLLocationManager *)manager
didUpdateLocations:(NSArray<CLLocation *> *)locations {
答案 1 :(得分:1)
更新您的info.plist文件。
<key>NSLocationWhenInUseUsageDescription</key>
<string>This application requires location services to work</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>This application requires location services to work</string>
答案 2 :(得分:0)
尝试这样。
- (void)setupViewController
{
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
self.locationManager.distanceFilter = 100;
self.locationManager.desiredAccuracy = kCLLocationAccuracyKilometer;
[self.locationManager startUpdatingLocation];
[self.locationManager requestWhenInUseAuthorization];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
self.bestEffortAtLocation = newLocation;
latitudeString = [[NSString alloc] initWithFormat:@"%g", newLocation.coordinate.latitude];
longitudeString = [[NSString alloc] initWithFormat:@"%g", newLocation.coordinate.longitude];
[self.locationManager stopUpdatingLocation];
}
从performselector
移除setupViewController
方法,您必须使用所有地点self
。希望它能帮到你。