OSX蓝牙扫描检测到重复的外围设备

Question

我是苹果开发的新手，并且一直在解决蓝牙问题。我尝试编写一个基本的OSX应用程序，它将扫描附近的设备并使用已发现的设备列表填充PopupList。

只是设置场景一点.. 我有一个按钮'startStopScanBut'，它将启动'startStopScan' 我也有两个日志。 Conn记录连接信息。 stateLog for phone state info。

ViewController.h

//  ViewController.h
//  F4STestHarness
//
//  Created by Nicholas Hayward on 26/06/2015.
//  Copyright (c) 2015 Nicholas Hayward. All rights reserved.
//
#import <Cocoa/Cocoa.h>
#import <CoreBluetooth/CoreBluetooth.h>

@interface ViewController : NSViewController
<CBCentralManagerDelegate,
 CBPeripheralDelegate>
@end

ViewController.m

//  ViewController.m
//  F4STestHarness
//
//  Created by Nicholas Hayward on 26/06/2015.
//  Copyright (c) 2015 Nicholas Hayward. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@property (nonatomic) IBOutlet NSTextView *stateLogTextView;
@property (nonatomic) IBOutlet NSTextView *bluetoothLogTextView;
@property BOOL bluetoothOn;

@property BOOL isScanning;
@property (nonatomic) IBOutlet NSButton *startStopScanBut;
@property (strong, nonatomic) CBCentralManager *centralManager;
@property (nonatomic) IBOutlet CBPeripheral *foundPeripheral;
@property (nonatomic) IBOutlet NSPopUpButton *foundPeripheralsPop;


/*@property BOOL isAdvertising;
@property BOOL isAdvertisingInitialised;
@property (nonatomic) IBOutlet NSButton *startStopAdvertisingButton;
@property (strong, nonatomic) CBPeripheralManager *peripheralManager;
@property (strong, nonatomic) CBMutableCharacteristic *myCharacteristic;
@property (strong, nonatomic) NSDictionary *advertisingData;*/

#define SERVICE_UUID        @ "1f9f7e9d-7a83-4053-87f9-2c328b8f315a"
#define CHARACTERISTIC_UUID @ "FFF3"

@end

@implementation ViewController

//Write to log function
-(void)conLog:(NSString *)msg
{
    self.bluetoothLogTextView.string = [@"\r\n" stringByAppendingString:self.bluetoothLogTextView.string];
    self.bluetoothLogTextView.string = [msg stringByAppendingString:self.bluetoothLogTextView.string];
}
-(void)stateLog:(NSString *)msg
{
    self.stateLogTextView.string = [@"\r\n" stringByAppendingString:self.stateLogTextView.string];
    self.stateLogTextView.string = [msg stringByAppendingString:self.stateLogTextView.string];
}

//form events

//form load
- (void)viewDidLoad {
    [super viewDidLoad];

    //Initialise flags
    self.bluetoothOn = NO;
    self.isScanning = NO;
    //self.isAdvertising = NO;
    //self.isAdvertisingInitialised = NO;

    //initialise bluetooth central  manager
    self.centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:Nil];

    //initialise bluetooth perihperl manager
    //self.peripheralManager = [[CBPeripheralManager alloc] initWithDelegate:self queue:Nil];

}

- (void)setRepresentedObject:(id)representedObject {
    [super setRepresentedObject:representedObject];

    // Update the view, if already loaded.
}



//Bluetooth Central events
- (IBAction)startStopScan:(id)sender
{
    //check bluetooth
    if (!self.bluetoothOn){
        [self conLog:@"Bluetooth is OFF, Cannot start scan"];
        return;
    }

    //Do we need to start or stop the scan?
    if (!self.isScanning)
    {
        //We are not scanning, but we are starting a new scan
        //empty the foundPeripheralsPop
        [_foundPeripheralsPop removeAllItems];

        //Start the scan. (we scan for the service uuid used when advertising services)
        [self.centralManager scanForPeripheralsWithServices: Nil
                                                options: @{ CBCentralManagerScanOptionAllowDuplicatesKey : @NO }];

        //update flag
        self.isScanning = YES;

        //change button text to say stop Scanning
        [self.startStopScanBut setTitle:@"Stop Scanning"];

        //update log
        [self conLog:@"Starting scan for Peripherals"];
    }
    else
    {
        //We are scanning, Stop the scan
        [self.centralManager stopScan];

        //update flag
        self.isScanning = NO;

        //change button text to say start Scanning
        [self.startStopScanBut setTitle:@"Get Advertising Peripherals"];

        //update log
        [self conLog:@"Stopped scan for peripherals"];
    }
}

//the state of the adapter has changedA(su1 enabled or disabled bluetooth
-(void)centralManagerDidUpdateState:(CBCentralManager *)central
{
    if (central.state != CBCentralManagerStatePoweredOn)
    {
        [self stateLog:@"Bluetooth OFF"];
        self.bluetoothOn = NO;
    }
    else
    {
        [self stateLog:@"Bluetooth ON"];
        self.bluetoothOn = YES;
    }
}

//We have found a peripheral device while scanning.
-(void) centralManager:(CBCentralManager *)central
 didDiscoverPeripheral:(CBPeripheral *)peripheral
     advertisementData:(NSDictionary *)advertisementData
                  RSSI:(NSNumber *)RSSI
{
    NSString *deviceName = [advertisementData objectForKey:@"kCBAdvDataLocalName"];
    if (deviceName == nil || [deviceName  isEqual: @""]) deviceName = @"No Name";

    //log what device we discovered
    [self conLog:[NSString stringWithFormat:@"Discovered %@, RSSI: %@\n", deviceName, RSSI]];

    //Add device to select list
    [_foundPeripheralsPop addItemWithTitle:deviceName];


    self.foundPeripheral = peripheral;
    //[self.centralManager connectPeripheral:peripheral options:nil];
}

我遇到的问题是这个OSX应用程序会不断地找到相同的外设，不断地启动didFindPeripheral功能。我已经基于上面的代码创建了一个单独的IOS项目，它没有找到重复项。

我试图找到的外围设备是...... 1.在插入ios设备上运行的Lynda.com外设示例 2. Fitbit健身追踪器。 （http://www.fitbit.com）

OSX中是否有任何东西可以阻止这些副本通过？任何人都有任何想法为什么它一遍又一遍地发现这些设备？