General Discussion

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  SweetBlue & Xamarin
  • mkurtz

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  We are using sweetblue v2 with xamarin. I needed to basically create a java wrapper interface around the bledevice methods which required callbacks/listeners. The bindings compilation had issues with the generic type java features being used with the listeners, so I just call to my java wrapper object from c# which has simple listeners and the binding generation has no issues with. I've attached our wrapper's source code for you to use, it filters the scans without needing to call back into c# too which was a huge performance improvement.sweetbluewrapper
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  SweetBlue 3.0.3 - Proguard Issue with TemperatureUnit?
  • allen

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  What you did works, however, I would suggest using -dontwarn com.idevicesinc.**
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  Scans with screen turned off on Android 8.1 and above fail
  • mkurtz

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  We're looking at around 2 weeks or so before we put out the official release.
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  Timeout
  • mgordon

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  Yes, those trigger. We added those when we noticed that the times we set in taskTimeoutRequestFilter or DefaultTaskTimeoutRequestFilter weren't triggering.
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  Android Q Support
  • AlejandroHCruz

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  1 & 2. That's great! Looking forward to future updates on this topic
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  Using SweetBlue in library
  • ldulcic

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  You can put it in a library if you want, you would just have to get a license for each app that it goes into. If you're looking to have many apps using SweetBlue, an Enterprise license may be more what you're looking for. If that's the case, email us at sweetblue@idevicesinc.com, and we can discuss your situation.
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  Pairing rejected by: ...
  • SparkyRih

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  Well, it's mostly the connecting itself which is the issue... The scanning/finding is pretty consistent now...
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  Prevent reconnect regardless of disconnect reason
  • mkurtz

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  @ryanbis Ah, good to know. I will be sure to test this thoroughly. Thanks for the tip!
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  BleTransaction.Auth() documentation
  • Activ84HealthEU

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  @Activ84HealthEU, I need a bit more info in order to help you. Does it actually ble connect to the device? (You may have to look at logcat). When the write fails in the transaction, what is the status()? That should at least give you a hint at what's going on. NOTE: When using any transaction, you MUST call either succeed(), or fail(). Otherwise, even if the write went through, it would just stall out and do nothing afterward (and the DeviceConnectListener onEvent will never get called, at least not for being connected).
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  Radio strength?
  • SparkyRih

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  `Well, the Sweetblue library does already make a big improvement on connection time, and the amount of phones even being able to connect... I'm mostly worried about the phones that sometimes don't connect at all, but so far, I've only seen that on a Sony in my small test team... Too bad the guy doesn't want to test again to see if my latest fixes work for that issue :S
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  NullPointerxceptoin in library?
  • SparkyRih

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  Unfortunately those line numbers are WAY off. If you're using proguard, please add these lines to your proguard file: -keep class com.idevicesinc.sweetblue.** { *; } -keepattributes SourceFile,LineNumberTable,Signature,*Annotation*,EnclosingMethod -dontwarn com.idevicesinc.sweetblue.**
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  Unbond behavior on App termination
  • AlejandroHCruz

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  That shouldn't matter (where you set the config). However, if you want it to apply to all devices, I would just set the options in the BleManagerConfig when instantiating the BleManager instance. (BleManagerConfig extends BleDeviceConfig mainly for this purpose). Try doing this, and see if you get any different results.
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  timeout__LONG_TERM value can't be changed
  • gunnark

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  @ryanbis Awesome! We look forward to the release. Cheers, Gunnar
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  NPE within ReadWriteListener$ReadWriteEvent.isNull
  • wouterh

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  Glad to hear! Looking forward to the next release.
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  Interacting with device that's already connected to the OS
  • AlejandroHCruz

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  Got it, thanks! Will look to alternative solutions like keeping a service in the background. Our goal is to provide push notification capabilities to the custom BLE device.
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  Device state incorrect after RECONNECTING_LONG_TERM using DefaultDeviceReconnectFilter
  device state reconnectfilter reconnecting bug • • wouterh

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  Excellent, please let me know if you still see the problem.
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  UhOhListener triggered too soon
  • Niels

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  Great suggestion, thanks!
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  DeviceStateLister pop after Bluetooth turn off
  statelistener turn off turn on pop listener • • Bjoern_ilockit

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  I'm having the same problems on v3.0.2, where as I connect, turn Bluetooth off and on again, it'll automatically reconnect (at least that's what the sensor says),but a NATIVE_CONNECTION_FAILED is given.
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  Explicit disconnect triggers automatic reconnect?
  • AlejandroHCruz

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  Removing all the calls to unbond() from our side does not mitigate the automatic reconnection.
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  Are there any sample projects that besides the SweetBlue v2 toolbox found on github?
  • Eheartlyanderson

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  The sample projects should be published here: https://forum.sweetblue.io/category/6/sample-apps Hope they upload some soon.