【发布时间】:2012-04-19 04:59:49
【问题描述】:
我目前正在使用“区域”示例代码: https://developer.apple.com/library/ios/#samplecode/Regions/Introduction/Intro.html#//apple_ref/doc/uid/DTS40010726-Intro-DontLinkElementID_2
我想更进一步,并在用户退出该区域时生成或触发通知(可以用于进入和退出,我不介意,对于初始实现来说最简单的方法) .
我一直在查看 CLLocation 类参考、位置感知编程指南和本地和推送通知编程指南。而且我正遭受信息过载的困扰。
非常感谢:)
编辑:我想我可能有一个解决问题的想法: 在 RegionsViewController 实现文件中有这样的:
- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
NSString *event = [NSString stringWithFormat:@"didExitRegion %@ at %@", region.identifier, [NSDate date]];
[self updateWithEvent:event];
}
因为我想在用户退出指定区域边界时实现本地通知,所以我输入了这个:
- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
NSString *event = [NSString stringWithFormat:@"didExitRegion %@ at %@", region.identifier, [NSDate date]];
[self updateWithEvent:event];
//implement local notification:
UIApplication *app = [UIApplication sharedApplication];
UILocalNotification *notification = [[UILocalNotification alloc] init];
[[UIApplication sharedApplication] cancelAllLocalNotifications];
if (notification == nil)
return;
notification.alertBody = [NSString stringWithFormat:@"Did You Lock Your House?"];
notification.alertAction = @"Lock House";
notification.soundName = UILocalNotificationDefaultSoundName;
notification.applicationIconBadgeNumber = 1;
[app presentLocalNotificationNow:notification];
[notification release];
}
有人可以告诉我这是否正确,或者是否有任何建议? (为糟糕的格式道歉)
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标签: geolocation geocoding geofencing