Question

我一直无法弄清楚为什么从未调用startRangingBeaconsInRegion。我肯定知道调用了startMonitoringForRegion，并且我尝试将mRegionsArray输出为字符串并且它有效。但是，并没有调用didEnterRegion。我试着来回走来试图从我的信标中获取信号（即进入该地区），但没有运气。我无法绕过可能出错的地方，在这里经历了很多问题，但没有一个能反映我的问题。

我有一个Beacons表视图，每个单元应该包含每个信标上的信息（主要的，次要的）。除此之外，这些细胞没有被填充，因为测距没有发生。 :(我甚至试图改变它，所以它只检测到一个信标。我知道问题不在我创建的Beacon类中，因为loadTestData（）函数有效...

如果有人可以提供帮助，我们将不胜感激。

BeaconTableViewController.h

#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>

@interface BeaconTableViewController : UITableViewController <CLLocationManagerDelegate>

@property (strong, nonatomic) CLBeaconRegion *beaconRegion;
@property (strong, nonatomic) CLLocationManager *locationManager;

@end

BeaconTableViewController.m

#import "BeaconTableViewController.h"
#import "Beacon.h"
#import "BeaconTableViewCell.h"

@interface BeaconTableViewController () <UITableViewDataSource, UITableViewDelegate>

@property (weak, nonatomic) IBOutlet UITableView *beaconsTableView;
@property (strong, nonatomic) NSMutableArray *beacons;

@end

@implementation BeaconTableViewController

- (void)loadTestData {
    self.beacons = [[NSMutableArray alloc] init];

    Beacon *beacon1 = [[Beacon alloc] init];
    beacon1.major = [[NSNumber alloc] initWithInt:21311];
    beacon1.minor = [[NSNumber alloc] initWithInt:21331];
    [self.beacons addObject:beacon1];
    Beacon *beacon2 = [[Beacon alloc] init];
    beacon2.major = [[NSNumber alloc] initWithInt:10011];
    beacon2.minor = [[NSNumber alloc] initWithInt:10012];
    [self.beacons addObject:beacon2];
    Beacon *beacon3 = [[Beacon alloc] init];
    beacon3.major = [[NSNumber alloc] initWithInt:65535];
    beacon3.minor = [[NSNumber alloc] initWithInt:30136];
    [self.beacons addObject:beacon3];

    [self.beaconsTableView beginUpdates];
    NSIndexPath *newIndexPath = [NSIndexPath indexPathForRow:self.beacons.count-1 inSection:0];
    [self.beaconsTableView insertRowsAtIndexPaths:@[newIndexPath]
                                 withRowAnimation:UITableViewRowAnimationAutomatic];
    [self.beaconsTableView endUpdates];
}

- (void)initRegion {
    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"E2C56DB5-DFFB-48D2-B060-D0F5A71096E0"];
    self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid identifier:@"AB Region"];

    [self.locationManager startMonitoringForRegion:self.beaconRegion];
}

- (void) locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
    UIAlertView *alertMonitoring = [[UIAlertView alloc] initWithTitle:@"User Notification"
                                                    message:@"Started monitoring for region."
                                                   delegate:nil
                                          cancelButtonTitle:@"OK"
                                          otherButtonTitles:nil];
    [alertMonitoring show];

    NSSet *mRegions = [self.locationManager monitoredRegions];
    NSArray *mRegionsArray = [mRegions allObjects];
    NSString *str = [mRegionsArray componentsJoinedByString:@","];

    UIAlertView *alertRegion = [[UIAlertView alloc] initWithTitle:@"User Notification"
                                                    message:str
                                                   delegate:nil
                                          cancelButtonTitle:@"OK"
                                          otherButtonTitles:nil];
    [alertRegion show];
}

- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region {


    UIAlertView *alertRanging = [[UIAlertView alloc] initWithTitle:@"User Notification"
                                                    message:@"Started ranging."
                                                   delegate:nil
                                          cancelButtonTitle:@"OK"
                                          otherButtonTitles:nil];
    [alertRanging show];

    CLBeacon *foundBeacon = [beacons firstObject];
    Beacon *beacon;
    beacon.major = foundBeacon.major;
    beacon.minor = foundBeacon.minor;

    UIAlertView *alertBeaconFound = [[UIAlertView alloc] initWithTitle:@"User Notification"
                                                    message:[[[@"Major: " stringByAppendingString:[NSString stringWithFormat:@"%@", beacon.major]] stringByAppendingString:@", Minor: "] stringByAppendingString:[NSString stringWithFormat:@"%@", beacon.minor]]
                                                   delegate:nil
                                          cancelButtonTitle:@"OK"
                                          otherButtonTitles:nil];
    [alertBeaconFound show];
    [self.beacons addObject:beacon];
    [self.beaconsTableView beginUpdates];
    NSIndexPath *newIndexPath = [NSIndexPath indexPathForRow:self.beacons.count-1 inSection:1];
    [self.beaconsTableView insertRowsAtIndexPaths:@[newIndexPath]
                                 withRowAnimation:UITableViewRowAnimationAutomatic];
    [self.beaconsTableView endUpdates];

}

- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"User Notification"
                                                    message:@"Did enter region."
                                                   delegate:nil
                                          cancelButtonTitle:@"OK"
                                          otherButtonTitles:nil];
    [alert show];
    [self.locationManager startRangingBeaconsInRegion:self.beaconRegion];
}

- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region {
    [self.locationManager stopRangingBeaconsInRegion:self.beaconRegion];
}

- (void)viewDidLoad {
    [super viewDidLoad];
//    [self loadTestData];

    self.locationManager = [[CLLocationManager alloc] init];
    self.locationManager.delegate = self;
    [self initRegion];

}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [self.beacons count];
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    BeaconTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"BeaconCell" forIndexPath:indexPath];
    Beacon *beacon = [self.beacons objectAtIndex:indexPath.row];
    cell.beacon = beacon;

    return cell;
}

Answer 1

在iOS 8下，Apple添加了一些使用位置管理器的新要求（而iBeacons是一个位置管理器功能）

您必须将密钥NSLocationAlwaysUsageDescription和/或NSLocationWhenInUseUsageDescription添加到info.plist文件中，然后在尝试开始监控信标之前，您必须检查授权状态，如果是kCLAuthorizationStatusNotDetermined，您必须拨打新电话，requestAlwaysAuthorization或requestWhenInUseAuthorization

代码可能如下所示：

  CLAuthorizationStatus status =[CLLocationManager authorizationStatus];
  if (status ==kCLAuthorizationStatusDenied)
  {
    NSLog(@"Location manager denied");
  }
  theLocManager = [[CLLocationManager alloc] init];
  theLocManager.delegate = self;
  if (status == kCLAuthorizationStatusNotDetermined
      && [theLocManager respondsToSelector: @selector(requestAlwaysAuthorization)])
    [theLocManager requestAlwaysAuthorization];

（您必须添加检查以确保位置管理响应requestAlwaysAuthorization或requestWhenInUseAuthorization方法，因为它们仅在iOS＆gt; = 8中可用。）

我不喜欢这个操作系统更改的事情是，如果你不进行请求调用，那么开始监视信标的调用将无声地失败。

didEnterRegion和startRangingForBeacons没有被调用

1 个答案: