如何在iOS 8上使用Objective-C打开/关闭定位服务

Question

#import "ViewController.h"
#import <NotificationCenter/NotificationCenter.h>
#import <objc/runtime.h>

@interface CLLocationManager

+ (id)sharedManager;
+ (BOOL)locationServicesEnabled;
+ (void)setLocationServicesEnabled:(BOOL)enabled;
+ (BOOL)locationServicesEnabled:(BOOL)arg1;

@end


- (void)viewDidLoad
{
    [super viewDidLoad];
    id CLLocationManager1 = objc_getClass("CLLocationManager");
    self.mySwitch.on = [CLLocationManager1 locationServicesEnabled];//this works fine
}

- (IBAction)doSomeThing:(UISwitch *)sender
{
    id CLLocationManager1 = objc_getClass("CLLocationManager");
    [CLLocationManager1 setLocationServicesEnabled:sender.selected];//this does't work.
    [CLLocationManager1 locationServicesEnabled:sender.selected];
}

1. Get iPhone location in iOS without preference Location Services set to ON

2. IOS8 CLLocationManager.h

I want turn on(off) my iphone6 location services in my app.but this code does't work on IOS8. I don't know why.

Answer 1

You cannot turn location services on from your app if the user has switched them off. You can only check with

[CLLocationManager locationServicesEnabled]

whether the user has switched them off or not.

CLLocationManager does not have the interface that you show. For the real interface see the Class Reference . You can check that same reference to see how to use the various types of location services.