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Re: How to get the updated advertisementData (kCBAdvDataManufacturerData) value?
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Re: How to get the updated advertisementData (kCBAdvDataManufacturerData) value?

  • Subject: Re: How to get the updated advertisementData (kCBAdvDataManufacturerData) value?
  • From: Hank Li <email@hidden>
  • Date: Thu, 15 Jan 2015 18:52:20 -0800
The peripheral is saved. the issue is that when the advertisement data is changed on the device, the ios app could not get the updated value. It seems the ios cached the advertisementdata.


Thanks,
Hank Li



On Thu, Jan 15, 2015 at 5:05 PM, Christopher Cotton <email@hidden> wrote:
We use changing advertisement data just fine in our iOS app. Are you
keeping a reference to the peripheral that is given to you? you should
get a ton of logs. You need to keep a reference otherwise it discards
that peripheral as per the docs in the header:


     *  @discussion                 This method is invoked while
scanning, upon the discovery of <i>peripheral</i> by <i>central</i>. A
discovered peripheral must

     *                              be retained in order to use it;
otherwise, it is assumed to not be of interest and will be cleaned up
by the central manager.




On Thu, Jan 15, 2015 at 6:33 PM, Hank Li <email@hidden> wrote:
> For my IOS app (on ios8), once it get the advertisementData, it will stay
> the same, even the data has been changed on the BLE device. How can I get
> the updated advertisementData in my ios app?
>
> Here is the code, the startScan is called every 5 seconds.
>
> func startScan() {
> let opts = [CBCentralManagerScanOptionAllowDuplicatesKey:true];
> centralManager.scanForPeripheralsWithServices(nil, options:opts);
> }
>
> func centralManager(central: CBCentralManager!, didDiscoverPeripheral
> peripheral: CBPeripheral!, advertisementData: [NSObject : AnyObject]!, RSSI:
> NSNumber!) {
>         println("\(advertisementData)");
> }
>
> Here is the output,
>  [kCBAdvDataLocalName: MyDevice001, kCBAdvDataIsConnectable: 1,
> kCBAdvDataManufacturerData: <11e467f7 7ec2ed>]
>
> the output will never change. how to get the updated advertisementData
> value?
>
> Thanks,
> Hank Li
>
>
>
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--
Christopher

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  • Follow-Ups:
    • Re: How to get the updated advertisementData (kCBAdvDataManufacturerData) value?
      • From: David Chu <email@hidden>
References: 
 >How to get the updated advertisementData (kCBAdvDataManufacturerData) value? (From: Hank Li <email@hidden>)
 >Re: How to get the updated advertisementData (kCBAdvDataManufacturerData) value? (From: Christopher Cotton <email@hidden>)

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