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我想在後臺發佈數據，我希望從定期的時間間隔接收響應，以便我嘗試使用CLLocation Manager。但didUpdateToLocation方法只調用一次。 請推薦我！ 輸入代碼在這裏位置背景 - 網絡連接
- (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」）; } 此方法只能調用一次。