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我正在为 Goefencing 做演示。

这是我的代码，

- (void) registerRegionForMonitoring {

    if (self.locationManager == nil) {
        self.locationManager = [[CLLocationManager alloc] init];
        self.locationManager.delegate = self;
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        self.locationManager.distanceFilter = kCLDistanceFilterNone;

        if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {
            [self.locationManager requestAlwaysAuthorization];
        }

        [self.locationManager startUpdatingLocation];
    }

    if(![CLLocationManager isMonitoringAvailableForClass:[CLCircularRegion class]]) {
        [Utilities showAlertWithTitle:@"Geofence" andMessage:@"This app requires region monitoring features which are unavailable on this device."];
        return;
    }

    for(NSDictionary *dictionary in geofences) {

        NSString *geofenceId = [NSString stringWithFormat:@"%@", [dictionary valueForKey:@"geofence_id"]];
        CLLocationDegrees latitude = [[dictionary valueForKey:@"latitude"] doubleValue];
        CLLocationDegrees longitude =[[dictionary valueForKey:@"longitude"] doubleValue];
        CLLocationCoordinate2D centerCoordinate = CLLocationCoordinate2DMake(latitude, longitude);
        CLLocationDistance regionRadius = [[dictionary valueForKey:@"radius"] doubleValue];

        CLRegion *geofenceRegion = [[CLCircularRegion alloc] initWithCenter:centerCoordinate radius:regionRadius identifier:geofenceId];
        [self.locationManager startMonitoringForRegion:geofenceRegion];
   }
}

这是委托方法

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {

    CLLocation *latestLocation = [locations lastObject];
    self.currentLocation = latestLocation;
}

- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
    [Utilities showAlertWithTitle:@"Geofence" andMessage:[NSString stringWithFormat:@"You are in region with identifire %@", region.identifire]];
}

- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
    [self.locationManager requestStateForRegion:region];
}

- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
    [Utilities showAlertWithTitle:@"Geofence" andMessage:[NSString stringWithFormat:@"You are out of region with identifire %@", region.identifire]];
}

- (void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region {

    if (state == CLRegionStateInside) {
        //  if user already in the region, when monitoring is started
        [Utilities showAlertWithTitle:@"Geofence" andMessage:[NSString stringWithFormat:@"You are in region with identifire %@", region.identifire]];
    }
}

我还在iOS 8+"NSLocationAlwaysUsageDescription"的文件中添加了密钥plist

下面还添加了背景模式：

  • 应用程序注册位置更新

  • 应用程序使用 CoreBluetooth 共享数据

  • 应用程序使用 CoreBluetooth 进行通信

  • 应用程序下载内容以响应推送通知

在 iOS 7 上一切正常，在 iOS 8.4 的 iOS 模拟器中也能正常工作

它不适用于设备（​​iOS 8.4，iPad 和 iPod）

我已经检查了wifi是否打开。

我还在设置中打开了“常规”->“后台应用刷新”

我不知道我错过了什么？

欢迎所有建议。提前致谢。

4

1 回答 1

0

您是否尝试过检查该区域是否真的开始跟踪？此方法将返回错误。

- (void)locationManager:monitoringDidFailForRegion:withError:

如果你monitoringForRegion在从 GPS 获得一个好的位置之前调用 start，你可能会得到一个错误。

此外，您可能需要检查状态CLRegionStateUnknown，didDetermineState因为这也是一个选项。

于 2016-06-22T09:10:53.230 回答