[UWP] [C＃]无法使用GetRadiosAsync找到蓝牙无线电

问题描述

大家好b


我正在尝试开发应用程序可以控制蓝牙模块状态。使用以下代码。

 var result = await Radio.RequestAccessAsync（）; 
 IReadOnlyList< Radio> radios = await Radio.GetRadiosAsync（）; 
 Radio BluetoothRadio = radios.FirstOrDefault（radio => radio.Kind == RadioKind.Bluetooth）; 
等待BluetoothRadio.SetStateAsync（RadioState.On）; 

我还在应用清单中包含无线电功能，如下所示。

< DeviceCapability Name =" radios" /> 

但是我遇到了挑战蓝牙状态已关闭，应用程序无法打开它。

我调试了代码并看到蓝牙模块状态何时关闭它无法被
捕获的 Radio.GetRadiosAsync（） 

你能帮我弄清楚这个问题是如何解决的吗？

问候，

Reza

$

解决方案

Hi everyone

I am trying to develop an app can take control of the Bluetooth module state. using following codes.

var result = await Radio.RequestAccessAsync();
IReadOnlyList<Radio> radios = await Radio.GetRadiosAsync();
Radio BluetoothRadio = radios.FirstOrDefault(radio => radio.Kind == RadioKind.Bluetooth);
await BluetoothRadio.SetStateAsync(RadioState.On);

I also include Radio capabilities in the app manifest as follow.

<DeviceCapability Name ="radios"/>

But I have a challenge when the Bluetooth state is off, which the app can't turn it on.

I debugged the code and saw when the Bluetooth module state is off it can't be caught byRadio.GetRadiosAsync() 

Can you help me figure out how I this issue can be solved?

Regards,
Reza

解决方案

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