iphone - 如何在 iphone 中使用蜂窝塔三角测量？

Question

在我的应用中，我不想脱离定位服务。我想在 iphone 上使用手机信号塔三角测量获取坐标。

请告诉我该怎么做？

Answer 1

使用名为 startMonitoringSignificantLocationChanges 的 API。来自 Apple docs -

startMonitoringSignificantLocationChanges service offers a significant power savings and provides accuracy that is good enough for most applications. It uses the device’s cellular radio to determine the user’s location and report changes in that location, allowing the system to manage power usage much more aggressively than it could otherwise.

所以在代码中这就是它的样子 -

 self.locationManager     = [[[CLLocationManager alloc] init] autorelease];
 locationManager.delegate = self;
 [locationManager startMonitoringSignificantLocationChanges];