didStartMonitoringForRegion獲取調用兩次，一個startMonitoringForRegion

Question

我已經開始區域監測。但我發現，didStartMonitoringForRegion獲取調用兩次也didEnterRegion獲取調用兩次。但我只打一次電話startMonitoringForRegion。我的代碼

- (void) enableRegionMonitoring:(NSMutableDictionary *)locationInfoDic{ 

NSLog(@"started Loc Mon"); 
locMgr = [[CLLocationManager alloc] init]; 
[locMgr setDelegate:self]; 
NSString *locationId=[[NSString alloc]init]; 
double latitude=[[locationInfoDic objectForKey:@"lat"] doubleValue]; 
double longitude=[[locationInfoDic objectForKey:@"lon"] doubleValue]; 
if([locationInfoDic objectForKey:@"key"]){ 
    locationId=[locationInfoDic objectForKey:@"key"] ; 
}else{ 
    locationId=@"NA"; 
} 

CLLocationCoordinate2D myMonLocation = CLLocationCoordinate2DMake(latitude, longitude); 
CLRegion *myRegion = [[CLRegion alloc] 
         initCircularRegionWithCenter:myMonLocation 
         radius:100 
         identifier:locationId]; 
[locMgr startMonitoringForRegion:myRegion 
          desiredAccuracy:kCLLocationAccuracyBest]; 

} 





- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region{ 
NSLog(@"Region monitoring started\n%@",[region description]); 
} 

Answer 1

嘗試調試。如果你沒有弄明白的時候，根本不理會第二didEnterRegion。即如果didEnterRegion連續兩次調用相同區域，則簡單地忽略第二個。

Answer 2

[locMgr startMonitoringForRegion:myRegiondesiredAccuracy 
     :kCLLocationAccuracyBest]; 

這種方法你爲什麼不停止更新方法嘗試調用停止更新method.I後，認爲這會幫助你。

[locationManager stopUpdatingLocation];