有什么好的方法可以知道 CLLocationManager 的 startMonitoringForRegion 何时完成？

Question

来自CLLocationManager.h：

/*
 *  startMonitoringForRegion:
 *
 *  Discussion:
 *      Start monitoring the specified region.
 *
 *      If a region of the same type with the same identifier is already being monitored for this application,
 *      it will be removed from monitoring. For circular regions, the region monitoring service will prioritize
 *      regions by their size, favoring smaller regions over larger regions.
 *
 *      This is done asynchronously and may not be immediately reflected in monitoredRegions.
 */
- (void)startMonitoringForRegion:(CLRegion *)region __OSX_AVAILABLE_STARTING(__MAC_TBD,__IPHONE_5_0);

有什么好的方法可以知道这个异步调用何时完成？一旦我知道某个区域开始了区域监控，我就会尝试执行另一个操作，但看起来这可能需要 >1s 到 >20s 的任何时间。

Answer 1

当然可以。在 CLLocationManagerDelegate 你会发现 - locationManager:didStartMonitoringForRegion: 。 here 您将找到完整的委托说明。