iBeacon應用程序有時只工作，發送從未在iPhone 5上工作

Question

我在這裏有一個非常奇怪的問題。我正在嘗試構建一個應用程序來檢測信標。我還沒有任何真正的信標，所以我正在測試iPhone 5和iPad 3.奇怪的是，傳輸只能在iPad上工作，即使我使用iPhone，iPhone也不能用作發射器它同樣的應用程序。

但即使將iPad作爲發射器，該應用程序也只是有時會起作用 - 有時iPhone會通知我它已經找到了燈塔，有時卻不會。我已經強制關閉了iPad上的應用程序，並在重新啓動後運行，但之後又沒有啓動。 因爲一切都是零星工作，我認爲它不能成爲導致這種行爲的代碼，但它可能是 - 我不是一個有經驗的編碼員，我剛開始這個。我的代碼是基於這個教程http://www.devfright.com/ibeacons-tutorial-ios-7-clbeaconregion-clbeacon/

我首先想到this可能是答案，但沒有解決它：有時它仍然有效，有時它沒有。

有人能告訴我我在和她打交道嗎？

這裏是我的跟蹤代碼：

ladBeaconTracker.h

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

@interface ladBeaconTracker : UIViewController <CLLocationManagerDelegate> 

@property (strong, nonatomic) CLBeaconRegion *beaconRegion; 
@property (strong, nonatomic) CLLocationManager *locationManager; 
@property (weak, nonatomic) IBOutlet UILabel *beaconFoundLabel; 

@end 

ladBeaconTracker.m

#import "ladBeaconTracker.h" 

    @interface ladBeaconTracker() 

    @property NSUUID *uuid; 

@end 

@implementation ladBeaconTracker 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     // Custom initialization 
    } 
    return self; 
} 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view. 

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

    [self initRegion]; 
} 

- (void)initRegion { 
    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"A5456D78-C85B-44C6-9F20-8268FD25EF8A"]; 
    self.beaconRegion = [[CLBeaconRegion alloc]initWithProximityUUID:uuid identifier:@"Museum"]; 

    [self.locationManager startMonitoringForRegion:self.beaconRegion]; 

    NSLog(@"Region %@ initated", _beaconRegion.identifier); 
} 

- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region { 
    [self.locationManager startRangingBeaconsInRegion:self.beaconRegion];  
    self.beaconRegion.notifyEntryStateOnDisplay = YES; 

    NSLog(@"Region %@ entered", _beaconRegion.identifier); 
} 

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

    NSLog(@"Region %@ exit", _beaconRegion.identifier); 
} 

- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region{ 
    CLBeacon *beacon = [[CLBeacon alloc] init]; 
    beacon= [beacons lastObject];  
    self.beaconFoundLabel.text =@"Yes"; 

    NSLog(@"Ranged Region %@", _beaconRegion.identifier); 
} 


- (void)didReceiveMemoryWarning 
{ 
    [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
} 

/* 
#pragma mark - Navigation 

// In a storyboard-based application, you will often want to do a little preparation before navigation 
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{ 
    // Get the new view controller using [segue destinationViewController]. 
    // Pass the selected object to the new view controller. 
} 
*/ 

@end 

這是發送器 - 代碼：

configViewController。 h

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

@interface ConfigViewController : UIViewController <CBPeripheralManagerDelegate> 

@property (strong,nonatomic) CLBeaconRegion *beaconRegion; 
@property(strong,nonatomic) NSDictionary *beaconPeripheralData; 
@property (strong, nonatomic) CBPeripheralManager *PeripheralManager; 

@end 

ConfigViewController.m

#import "ConfigViewController.h" 

@interface ConfigViewController() 

@end 

@implementation ConfigViewController 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     // Custom initialization 
    } 
    return self; 
} 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view. 
    [self initBeacon]; 
} 

- (void) peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral { 
    if (peripheral.state == CBPeripheralManagerStatePoweredOn) { 
     NSLog(@"Powered ON"); 
     [self.PeripheralManager startAdvertising:self.beaconPeripheralData]; 
    } 
    else if (peripheral.state == CBPeripheralManagerStatePoweredOff){ 
     NSLog(@"Powered OFF"); 
     [self.PeripheralManager stopAdvertising]; 
    } 
} 

- (void)initBeacon { 
    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:@"A5456D78-C85B-44C6-9F20-8268FD25EF8A"]; 
    self.beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:uuid 
               major:1 
               minor:1 
               identifier:@"Museum"]; 
} 

- (IBAction)transmitBeacon:(UIButton *)sender { 
    self.beaconPeripheralData = [self.beaconRegion peripheralDataWithMeasuredPower:nil]; 
    self.PeripheralManager = [[CBPeripheralManager alloc]initWithDelegate:self queue:nil options:nil]; 
} 


- (void)didReceiveMemoryWarning 
{ 
    [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
} 

@end 

Answer 1

你的代碼看起來罰款在後臺檢測信標。兩個建議：

1. 我懷疑當iPad傳輸的問題不是與iPad，但iPhone無法接收。嘗試騎自行車到iPhone tto清除known bug in iOS 7.1.

2. 如果您在設置監控的同時設置範圍，iOS可以更快地在前臺檢測iBeacon。將[self.locationManager startRangingBeaconsInRegion:self.beaconRegion];轉換爲initRegion並完全取出stopRangingBeaconsInRegion。

完成（2）後，在前臺重複測試並查找日誌語句Ranged Region。你應該在信標打開的時候每秒看到這一點。

在後臺，知道it can take up to 15 minutes既檢測到iBeacon，又檢測到iBeacon不再存在。再次注意您的日誌行中關於當前狀態的提示，並知道在第一次獲取區域退出事件或重新啓動手機之前您無法獲得新的區域進入事件。