objective-c - 如果 CoreLocation 必须不断检索用户的位置，节省电池的技巧？

Question

应用程序将随机选择一个纬度和经度来创建一个用户必须找到的点。

用户与该点的距离将使用“冷热计”显示，该计会根据距离改变颜色。这个仪表必须不断更新，这就需要我不断检索用户的位置。我还需要使用 kCLLocationAccuracyBest。但是，这听起来会消耗大量电池。

我可以做些什么来节省电量吗？

Answer 1

来自官方文档

Gathering location data is a power-intensive operation. It involves powering up the onboard radios and querying the available cell towers, Wi-Fi hotspots, or GPS satellites, which can take several seconds. Leaving the standard location service running for extended periods can drain the device’s battery. (The significant-change location service drastically reduces battery drain by monitoring only cell tower changes, but the service works only on devices with cellular radios.) For most apps, it is usually sufficient to establish an initial position fix and then acquire updates only periodically after that. If you are sure you need regular position updates, you should use the significant-change location service where you can; otherwise, you should configure the parameters of the standard location service in a way that minimizes its impact on battery life.

http://developer.apple.com/library/ios/#documentation/userexperience/conceptual/LocationAwarenessPG/CoreLocation/CoreLocation.html

PS:在同一个链接上，页面底部还有一个部分还有其他提示:)