BLE in Windows Application (UWP)

Following the readme, under header “## Usage” we are stuck at initializing the plug-in.

So- How to address portable version of this assembly in a Windows application? or/and Where to initialize Mvx.Resolve in a Windows Application?

Steps to reproduce

1. Add Plugin.BLE / MvvmCross.Plugin.BLE via NuGet to Windows Application VS solution.

2. Attempt to initialize with either the ‘Vanilla’ or ‘MvvmCross’ calls to init BLE.

3. Error(s) will produce

Expected behavior

Tell us what should happen Run

Actual behavior

Tell us what happens instead Errors out

Crashlog

If something causes an exception paste full stack trace + Exception here

//**Vanilla**
try
{
    var ble = CrossBluetoothLE.Current;
    var adapter = CrossBluetoothLE.Current.Adapter;
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
}

| Name | Value | Type – | – | – | –   | Message | “This functionality is not implemented in the portable version of this assembly. You should reference the NuGet package from your main application project in order to reference the platform-specific implementation.” | string

| Name | Value | Type – | – | – | –   | StackTrace | " at Plugin.BLE.CrossBluetoothLE.get_Current()\r\n at MyWindowsApp.Source.Logic.InitBLE() in C:\…\MyWindowsApp\Source\Logic.cs:line 116" | string

//**MvvmCross**
try
{
    var ble = Mvx.Resolve<IBluetoothLE>();
    var adapter = Mvx.Resolve<IAdapter>();
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
}

| Name | Value | Type – | – | – | –   | Message | “Object reference not set to an instance of an object.” | string

| Name | Value | Type – | – | – | –   | StackTrace | " at MvvmCross.Platform.Mvx.ResolveTService\r\n at MyWindowsApp.Source.Logic.InitBLE() in C:\…\MyWindowsApp\Source\Logic.cs:line 127" | string

Configuration

Version of the Plugin: e.g. 1.0.0 / 1.0.1-alpha3 1.3.0

Platform: e.g. iOS 10.1 / Android 4.4 / … (including version!!! e.g. Android 5.1 / i0S 10) Windows Application using .NET Framework (targets 4.5.1)

Device: e.g. HTC Sensation /i Phone 7 … PC running Windows 10

[janusw]

@emanuelevaini @fomlhaut I created PR #640, which is supposed to fix this problem. Testing and feedback welcome!

[janusw]

@fomlhaut Thanks for your analysis! I think you’re absolutely right. We need to obtain the DispatcherQueue on the UI thread. I think I know how to fix this. Will create a PR tonight …