问题描述
这是我的简单代码，我试图在其中监视进入/退出事件。 我面临的问题：DidEnterRegion 和 DidExitRegion 被多次调用：第一个 - 当它实际发生时，另一个调用 - 当我来到后台，然后在第一次调用后约 15-30 秒的范围内返回到前台DidEnterRegion/DidExitRegion
这个触发的原因是什么？为什么会发生这种情况？
class AppDelegate: UIResponder,UIApplicationDelegate,CLLocationManagerDelegate {
var window: UIWindow?
var locationManager = CLLocationManager()
var beaconRegion: CLBeaconRegion!
func application(_ application: UIApplication,didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
confugureLocationManager()
configureRegion()
return true
}
private func confugureLocationManager() {
locationManager.delegate = self
if CLLocationManager.authorizationStatus() != .authorizedAlways {
locationManager.requestAlwaysAuthorization()
}
print("monitored regions: \(String(describing: locationManager.monitoredRegions))")
}
private func configureRegion() {
let uuid = UUID(uuidString: "04C7E2F3-42A5-5127-B066-502C8A27EB85")!
beaconRegion = CLBeaconRegion(uuid: uuid,identifier: uuid.uuidString)
}
func locationManager(_ manager: CLLocationManager,didChangeAuthorization status: CLAuthorizationStatus) {
if status == .authorizedAlways {
if CLLocationManager.isMonitoringAvailable(for: CLBeaconRegion.self) {
locationManager.startMonitoring(for: beaconRegion)
}
}
}
func locationManager(_ manager: CLLocationManager,didDetermineState state: CLRegionState,for region: CLRegion) {
if state == .inside {
print("Did determine INSIDE state for region.")
} else {
if state == .outside {
print("Did determine OUTSIDE state for region.")
}
if state == .unkNown {
print("Did determine UNKNowN state for region.")
}
}
}
func locationManager(_ manager: CLLocationManager,didStartMonitoringFor region: CLRegion) {
print("did start monitoring")
}
func locationManager(_ manager: CLLocationManager,didEnterRegion region: CLRegion) {
print("Did enter region: \(region.identifier),manager: \(manager)")
}
func locationManager(_ manager: CLLocationManager,didExitRegion region: CLRegion) {
print("Did exit region: \(region.identifier)")
}
}
解决方法
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