ios - CLLocationManager 不监控区域
<p><p>我很困惑...我今天有这个工作，现在我不知道发生了什么。它不是我的 iBeacon，因为我可以使用 <code>Locate</code> iOS 应用程序找到它。我正在创建自己的位置管理器，但不确定您是否将其称为子类，因为我正在继承 NSObject。这里是:</p>
<pre><code>//
//LocationManager.swift
//onebeacon
//
//Created by Eamon White on 2/24/18.
//Copyright © 2018 EamonWhite. All rights reserved.
//
import Foundation
import CoreLocation
protocol LocationManagerDelegate: class {
func locationManagerDidUpdateLocation(_ locationManager: LocationManager, location: CLLocation)
func locationManagerDidUpdateHeading(_ locationManager: LocationManager, heading: CLHeading, accuracy: CLLocationDirection)
func locationManagerDidEnterRegion(_ locationManager: LocationManager, didEnterRegion region: CLRegion)
func locationManagerDidExitRegion(_ locationManager: LocationManager, didExitRegion region: CLRegion)
func locationManagerDidDetermineState(_ locationManager: LocationManager, didDetermineState state: CLRegionState, region: CLRegion)
func locationManagerDidRangeBeacons(_ locationManager: LocationManager, beacons: , region: CLBeaconRegion)
}
class LocationManager: NSObject, CLLocationManagerDelegate {
private var locationManager: CLLocationManager!
weak var delegate: LocationManagerDelegate?
var beaconsToRange:
var currentLocation: CLLocation!
override init() {
self.beaconsToRange = []
super.init()
self.locationManager = CLLocationManager()
self.locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation
self.locationManager.distanceFilter = kCLDistanceFilterNone
self.locationManager.headingFilter = kCLHeadingFilterNone
self.locationManager.pausesLocationUpdatesAutomatically = false
self.locationManager.delegate = self
self.enableLocationServices()
}
func enableLocationServices() {
self.checkStatus(status: CLLocationManager.authorizationStatus())
}
func checkStatus(status: CLAuthorizationStatus) {
switch status {
case .notDetermined:
// Request when-in-use authorization initially
locationManager.requestAlwaysAuthorization()
break
case .restricted, .denied:
// Disable location features
print("send an alert that the app will not function")
break
case .authorizedWhenInUse:
locationManager.requestAlwaysAuthorization()
// Enable basic location features
break
case .authorizedAlways:
locationManager.startUpdatingLocation()
locationManager.startUpdatingHeading()
self.monitorBeacons()
// Enable any of your app's location features
break
}
}
func monitorBeacons() {
print("monitorBeacons()")
if CLLocationManager.isMonitoringAvailable(for:
CLBeaconRegion.self) {
print("monitorBeacons().monitoringIsAvailable")
// Match all beacons with the specified UUID
let proximityUUID = UUID(uuidString:
"12345678-B644-4520-8F0C-720EAF059935")
let beaconRegion = CLBeaconRegion(
proximityUUID: proximityUUID!,
major: 0x0001,
minor: 0x0002,
identifier: "iBeacon")
beaconRegion.notifyEntryStateOnDisplay = true;
self.locationManager?.startMonitoring(for: beaconRegion)
print("\(String(describing: self.locationManager?.monitoredRegions)) + monitoredRegions")
}
}
//MARK: - CLLocationManagerDelegate
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: ) {
for location in locations {
self.delegate?.locationManagerDidUpdateLocation(self, location: location)
}
self.currentLocation = manager.location
}
func locationManager(_ manager: CLLocationManager, didUpdateHeading newHeading: CLHeading) {
self.delegate?.locationManagerDidUpdateHeading(self, heading: newHeading, accuracy: newHeading.headingAccuracy)
}
func locationManager(_ manager: CLLocationManager, didEnterRegion region: CLRegion) {
if region is CLBeaconRegion {
// Start ranging only if the feature is available.
if CLLocationManager.isRangingAvailable() {
locationManager?.startRangingBeacons(in: region as! CLBeaconRegion)
// Store the beacon so that ranging can be stopped on demand.
beaconsToRange.append(region as! CLBeaconRegion)
}
}
self.delegate?.locationManagerDidEnterRegion(self, didEnterRegion: region)
}
func locationManager(_ manager: CLLocationManager, didExitRegion region: CLRegion) {
self.delegate?.locationManagerDidExitRegion(self, didExitRegion: region)
}
func locationManager(_ manager: CLLocationManager, didDetermineState state: CLRegionState, for region: CLRegion) {
if region is CLBeaconRegion {
print("determined state of beacon")
// Start ranging only if the feature is available.
if CLLocationManager.isRangingAvailable() {
print("determined state of beacon and started ranging")
locationManager?.startRangingBeacons(in: region as! CLBeaconRegion)
// Store the beacon so that ranging can be stopped on demand.
beaconsToRange.append(region as! CLBeaconRegion)
}
}
self.delegate?.locationManagerDidDetermineState(self, didDetermineState: state, region: region)
}
func locationManager(_ manager: CLLocationManager,
didRangeBeacons beacons: ,
in region: CLBeaconRegion) {
self.delegate?.locationManagerDidRangeBeacons(self, beacons: beacons, region: region)
}
func locationManagerShouldDisplayHeadingCalibration(_ manager: CLLocationManager) -> Bool {
return true
}
func locationManager(_ manager: CLLocationManager,
didChangeAuthorization status: CLAuthorizationStatus) {
self.checkStatus(status: status)
}
}
</code></pre>
<p>在我的 <code>ViewController</code> 中，我以非常直接的方式使用它(顶部:委托(delegate)方法......对于问题来说有点无关紧要，底部:实例化):</p >
<pre><code>import UIKit
import SceneKit
import ARKit
import CoreLocation
class ViewController: UIViewController, ARSCNViewDelegate, LocationManagerDelegate {
func locationManagerDidUpdateLocation(_ locationManager: LocationManager, location: CLLocation) {
}
func locationManagerDidUpdateHeading(_ locationManager: LocationManager, heading: CLHeading, accuracy: CLLocationDirection) {
}
func locationManagerDidEnterRegion(_ locationManager: LocationManager, didEnterRegion region: CLRegion) {
}
func locationManagerDidExitRegion(_ locationManager: LocationManager, didExitRegion region: CLRegion) {
}
func locationManagerDidDetermineState(_ locationManager: LocationManager, didDetermineState state: CLRegionState, region: CLRegion) {
}
func locationManagerDidRangeBeacons(_ locationManager: LocationManager, beacons: , region: CLBeaconRegion) {
print("\(beacons) + beacons for ranging")
if beacons.count > 0 {
let nearestBeacon = beacons.first!
let major = CLBeaconMajorValue(truncating: nearestBeacon.major)
let minor = CLBeaconMinorValue(truncating: nearestBeacon.minor)
print("major: \(major)")
print("minor: \(minor)")
print("accuracy: \(nearestBeacon.accuracy)")
switch nearestBeacon.proximity {
case .immediate:
print("--- immediate ---")
case .near:
print("--- near ---")
case .far:
print("--- far ---")
case .unknown:
print("--- proximity unknown ---")
}
}
}
var sceneView: ARSCNView!
var locationManager: LocationManager!
override func viewDidLoad() {
super.viewDidLoad()
sceneView = ARSCNView()
locationManager = LocationManager()
locationManager.delegate = self
...
</code></pre>
<p>我的控制台输出是:</p>
<pre><code>2018-02-24 20:40:30.927542-0500 onebeacon platform initialization successful
2018-02-24 20:40:32.799470-0500 onebeacon Metal GPU Frame Capture Enabled
2018-02-24 20:40:32.801237-0500 onebeacon Metal API Validation Enabled
monitorBeacons()
monitorBeacons().monitoringIsAvailable
Optional(Set()) + monitoredRegions
</code></pre>
<p>所有 iBeacon 细节都是正确的，它们不可能从今天早些时候改变，因为它一直被插入并且没有被访问。问题总结:似乎将该区域添加到“要监控的区域”列表中，但监控似乎从未开始，因为我没有收到中继 iBeacon 信息的控制台消息。</p>
<p><strong>更新</strong></p>
<p>我会留下我提供的答案，因为它可能是其中的一部分(也许不是)......但现在它似乎开始了两次:</p>
<pre><code>2018-02-24 21:35:13.341162-0500 onebeacon platform initialization successful
2018-02-24 21:35:16.504017-0500 onebeacon Metal GPU Frame Capture Enabled
2018-02-24 21:35:16.505384-0500 onebeacon Metal API Validation Enabled
monitorBeacons()
monitorBeacons().monitoringIsAvailable
Optional(Set()) + monitoredRegions
2018-02-24 21:35:16.747004-0500 onebeacon System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2018-02-24 21:35:16.747969-0500 onebeacon Reading from public effective user settings.
monitorBeacons()
monitorBeacons().monitoringIsAvailable
Optional(Set()) + monitoredRegions
</code></pre>
<p>如您所见，<code>monitorBeacons()...</code> 行出现了两次，我检查以确保没有 LocationManager 的其他实例化，也没有。</p>
<p><strong>更新</strong></p>
<p>我缩小了范围...问题似乎是 <code>didDetermineState</code> 函数最初没有触发，我必须走出信标的范围(或靠近它)...然后往回走，<code>didDetermineState</code> 方法触发，有谁知道为什么当我在信标的半径范围内开始时它没有触发？</p>
<p><strong>更新</strong></p>
<p>我的手机似乎正在识别它在一个区域中，因为当我走出该区域时，<code>didExitRegion</code> 方法会触发，然后是 <code>didDetermineState</code> 方法。 ..odd 因为如果 <code>didExitRegion</code> 方法正在触发，则应该已经确定了状态:</p>
<pre><code>2018-02-24 23:01:09.650445-0500 onebeacon if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-24 23:01:09.651978-0500 onebeacon if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-24 23:01:15.007844-0500 onebeacon if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-24 23:01:15.007893-0500 onebeacon if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2018-02-24 23:02:00.002451-0500 onebeacon Status bar could not find cached time string image. Rendering in-process.
...(put in for easier reading)...
did exit region --- CLBeaconRegion (identifier:'iBeacon', uuid:12345678-B644-4520-8F0C-720EAF059935, major:1, minor:2)
determined state of beacon
determined state of beacon and started ranging
[] + beacons for ranging
[] + beacons for ranging
[] + beacons for ranging
[] + beacons for ranging
[] + beacons for ranging
[] + beacons for ranging
[] + beacons for ranging
</code></pre>
<p>什么是预提交处理程序警告？这些是否相关？</p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>我的 <code>didDetermineState</code> 函数在应用程序的初始加载时停止工作。如果我走出信标的范围，然后回到范围 - <code>didDetermineState</code> 方法会触发(以及 <code>enter/exit</code> 区域方法)。我购买了另一个 iBeacon……它运行良好……而且，奇怪的是，当我同时使用两个信标时，<code>didDetermineState</code> 在初始加载时检测到两个信标。我不确定为什么 <code>didDetermineState</code> 在单独使用时停止为一个信标工作。</p></p>
<p style="font-size: 20px;">关于ios - CLLocationManager 不监控区域，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/48969476/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/48969476/
</a>
</p>
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