在info.plist中加入两个键值：
NSLocationAlwaysUsageDescription和NSLocationWhenInUseUsageDescription。
使用方法如下，两个方法分别用于获取当前位置和持续获取位置，使用block回传消息，因此需要注意调用顺序：
- (void)viewDidLoad {
[super viewDidLoad];
INTULocationManager *locMgr = [INTULocationManager sharedInstance];
// 获取当前位置
[locMgr requestLocationWithDesiredAccuracy:INTULocationAccuracyRoom timeout:10.0 block:^(CLLocation *currentLocation, INTULocationAccuracy achievedAccuracy, INTULocationStatus status) {
NSLog(@"%f %f",currentLocation.coordinate.latitude,currentLocation.coordinate.longitude);
}];
// 申请持续获取位置
[locMgr subscribeToLocationUpdatesWithBlock:^(CLLocation *currentLocation, INTULocationAccuracy achievedAccuracy, INTULocationStatus status) {
NSLog(@"%f %f",currentLocation.coordinate.latitude,currentLocation.coordinate.longitude);
}];
}