有沒有什麼好的方法來知道CLLocationManager的startMonitoringForRegion何時完成？

Question

從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); 

有沒有知道這個異步調用已完成的好辦法？一旦我知道某區域的區域監控已開始，我試圖執行另一個操作，但看起來可能需要從1s到20s的任何地方。

Answer 1

當然是的。在CLLocationManagerDelegate，你會發現- locationManager:didStartMonitoringForRegion:。 here你會發現完整的代表說明。