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我想在后台发布数据，我希望从定期的时间间隔接收响应，以便我尝试使用CLLocation Manager。但didUpdateToLocation方法只调用一次。 请推荐我！ 输入代码在这里位置背景 - 网络连接
- (void)applicationDidEnterBackgroundUIApplication *)application
{
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone; // whenever we move
locationManager.desiredAccuracy = kCLLocationAccuracyBest; // 100 m
[locationManager startUpdatingLocation];
UIApplication* app = [UIApplication sharedApplication];
bgTask = [app beginBackgroundTaskWithExpirationHandler:^{
[app endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
}];
// Start the long-running task and return immediately.
dispatch_async(dispatch_get_global_queue(DISPATCH_ QUEUE_PRIORITY_DEFAULT, 0), ^{
//Do the work associated with the task
// code for Posting Data Here
NSLog(@"backgroundTimeRemaining: %f", [[UIApplication sharedApplication] backgroundTimeRemaining]);
[app endBackgroundTask:bgTask];
bgTask = UIBackgroundTaskInvalid;
});
}
- (void)locationManagerCLLocationManager *)manager
didUpdateToLocationCLLocation *）newLocation fromLocationCLLocation *）oldLocation {
的NSLog（@ “位置更改”）; } 此方法只能调用一次。