iOS Question BeaconParser - Issue on Discover iBeacons

[Christian García S.]

Hi everybody,

I have an issue I hope you can help me, I just implemented ebeacon parser in B4A without issues, its works perfectly.

now I want to implement in B4I and I have an issue, I received log with error:

Application_Start
Application_Active
Error occurred on line: 88 (BeaconParser)
Out of bounds. Index=0 Length=0
Stack Trace: (
CoreFoundation <redacted> + 152
libobjc.A.dylib objc_exception_throw + 38
CoreFoundation <redacted> + 0
BLE Example -[B4IArray getByteFast:] + 238
BLE Example -[b4i_beaconparser _parseeddystone::::] + 1112
CoreFoundation <redacted> + 68
CoreFoundation <redacted> + 300
BLE Example +[B4I runDynamicMethod:method:throwErrorIfMissing:args:] + 1786
BLE Example -[B4IShell runMethod:] + 574
BLE Example -[B4IShell raiseEventImpl:method:args::] + 2212
BLE Example -[B4IShellBI raiseEvent:eventarams:] + 1442
BLE Example +[B4IDebug delegate:::] + 52
BLE Example -[b4i_beaconparser _parse:::] + 524
BLE Example -[b4i_main _manager_devicefound::::] + 904
CoreFoundation <redacted> + 68
CoreFoundation <redacted> + 300
BLE Example +[B4I runDynamicMethod:method:throwErrorIfMissing:args:] + 1786
BLE Example -[B4IShell runMethod:] + 574
BLE Example -[B4IShell raiseEventImpl:method:args::] + 2212
BLE Example -[B4IShellBI raiseEvent:eventarams:] + 1442
BLE Example +[B4IObjectWrapper raiseEvent:::] + 220
BLE Example -[BleDelegate centralManager:didDiscoverPeripheral:advertisementData:RSSI:] + 508
CoreBluetooth <redacted> + 906
CoreBluetooth <redacted> + 638
CoreBluetooth <redacted> + 84
CoreBluetooth <redacted> + 50
libdispatch.dylib <redacted> + 10
libdispatch.dylib <redacted> + 22
libdispatch.dylib <redacted> + 854
libdispatch.dylib <redacted> + 886
libdispatch.dylib _dispatch_main_queue_callback_4CF + 596
CoreFoundation <redacted> + 8
CoreFoundation <redacted> + 848
CoreFoundation CFRunLoopRunSpecific + 470
CoreFoundation CFRunLoopRunInMode + 104
GraphicsServices GSEventRunModal + 80
UIKit UIApplicationMain + 150
BLE Example main + 108
libdyld.dylib <redacted> + 2
)

The ibeacon is a ibeacon not an eddystone, I have B4I version 3.60 and the BLE 2.0 thats includes this version, I used the same ibeacons that used in B4A.

Later I tested uncommenting this lines:

For Each key As Int In AdvertisingData.Keys
Log($"${key}= ${bc.HexFromBytes(AdvertisingData.Get(key))}"$)
Next

And I get this:

Cannot parse: kCBAdvDataServiceData

Thanks a lot for your help.

Christian

 

[Christian García S.]

I see always the parser goes to section in Sub Parse:

#else if B4I

In this section in AdvertisingData.ContainsKey("kCBAdvDataServiceData") return true and execute this code:

tx = ParseEddystone(beacon1, b, 2)

I dont see code when is ibeacon, only in other section #if B4A.

I hope with this I can help with something.

Thanks,

Christian

 

[Erel]

It will not work with iBeacons. See the tutorial: https://www.b4x.com/android/forum/t...ibeacons-and-eddystone-beacons.61127/#content

 

[Christian García S.]

Thanks Erel for your response.

Thats means I cant use ibeacons with IOS app or I cant use only with Beacon Parser ??

I want use only for read major and minor, can I use with other functions like BLE https://www.b4x.com/android/forum/threads/discovering-ibeacon-devices-with-ble2-library.60151/

I just downloaded LOCATE APP in Apple store, this app read beacons registering this UUID, why I can't do that with B4I ??

I buyed new ibeacons I am disappointed I can not read, must I buy Eddystone for works with two apps Android and IOS in my APP ??

Thanks a lot for your help

Christian

 

[Christian García S.]

Erel,

I was read about iBeacons and I found, APPLE introduces new iBeacon CoreLocation APIs and disallow access to the raw advertisement body.

http://stackoverflow.com/questions/...-to-get-all-of-proximityuuid-programmatically

Are you think make new library (Beacons regions / CLBeaconRegion) for access to this information for works with beacons ?? The new features for this new library too is you can keep monitoring beacons in background, actual library beacon parser is not succesfull for changes en OS

Or you can help me with some code in OBJC that I can use for work with my APP and works like in Android.

Thanks for your help.