找不到CLLocationManager startUpdatingLocation

Question

我一直在尝试为我的应用添加一个功能来获取位置并将变量放入mysql数据库中。我已经在标题中添加了CoreLocation.framework并导入了<CoreLocation/CoreLocation.h>。我尝试了不同的代码，但我总是想出类似的错误，如下面评论的错误。框架是否可能没有正确连接？

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:   (NSDictionary *)launchOptions                              
{ 
 CLLocationManager = self; // Expected identifier or '('
 [self startUpdatingLocation:nil]; // instance method '-startUpdatingLocation' not found
}



-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{
 CLLocationManager *locationManager = [[CLLocationManager alloc] release];
//initializing 'CLLocationManager *' with an expression of incompatible type 'void'
[locationManager startUpdatingLocation:nil];
//do stuff with the coordinates
}



@end

Answer 1

请查看代码的更正。它应该工作。之后，您的代码应实现CLLocationManagerDelegate方法以获取位置信息。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:   (NSDictionary *)launchOptions                              
{ 
CLLocationManager *locationManager = [[CLLocationManager alloc] init];
 locationManager.delegate = self;
[locationManager startUpdatingLocation:nil];}



-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{

 CLLocationManager *locationManager = [[CLLocationManager alloc] init];
 locationManager.delegate = self;
[locationManager startUpdatingLocation:nil];

//do stuff with the coordinates
}