根据 apple 文档，我使用 post iOS4 方法 startMonitoringSignificantLocationChanges 方法:
For applications that do not need a regular stream of location events, consider using the startMonitoringSignificantLocationChanges method to start the delivery of events instead. This method is more appropriate for the majority of applications that just need an initial user location fix and need updates only when the user moves a significant distance. This interface delivers new events only when it detects changes to the device’s associated cell towers, resulting in less frequent updates and significantly lower power usage.
所以这个接口(interface)只有在检测到位置发生变化时才传递新的事件，到底用什么方法可以检测到位置发生了明显的变化，到目前为止，我是这样的:
if ([CLLocationManager significantLocationChangeMonitoringAvailable]) {
[locationManager startMonitoringSignificantLocationChanges];
}
我应该使用什么显式方法来显式检测到位置已发生重大变化。谢谢。
最佳答案
我是这样做的:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customizatio-n after application launch.
id locationValue = [launchOptions objectForKey:UIApplicationLaunchOptionsLocationKey];
if (locationValue)
{
// create a new manager and start checking for sig changes
[self log:@"didFinishLaunchingWithOptions location key"];
m_locManager = [[CLLocationManager alloc] init];
[self log:@"didFinishLaunchingWithOptions created manager"];
m_locManager.delegate = self;
[self log:@"didFinishLaunchingWithOptions set delegate"];
[m_locManager startMonitoringSignificantLocationChanges];
[self log:@"didFinishLaunchingWithOptions monitoring sig changes"];
return YES;
}
[self log:@"didFinishLaunchingWithOptions"];
return YES;
}
- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
关于ios - 如何使用 startMonitoringSignificantLocationChanges 检测位置变化，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/13341483/