1.打开项目里面的 Package.appxmanifest 文件
找到<Capabilities>节点，添加代码如下，其中
serviceId:6006 可以自己修改值
<m2:DeviceCapability Name="bluetooth.genericAttributeProfile">
<m2:Device Id="any">
<m2:Function Type="serviceId:6006" />
</m2:Device>
</m2:DeviceCapability>
</Capabilities>
2.蓝牙核心代码
GattDeviceService gattDeviceService;
GattCharacteristic characteristic;
GattCharacteristic writeCharateristic;
#region 蓝牙管理
public async Task<bool> Connect(string deviceName = "mydevice")
{
if (IsConnected) return true;
bool result = false;
if (gattDeviceService != null)
gattDeviceService = null;
try
{
var devices = await GetDevices();
string s = "";
foreach (var item in devices)
{
s += item.Name + " ,";
}
P(s);
foreach (var item in devices)
{
if (item.Name.ToLower().Contains(deviceName.ToLower()))
{
//已经配对 如果找不到提示用户先去蓝牙设置配对
gattDeviceService = await GattDeviceService.FromIdAsync(item.Id);
if (gattDeviceService != null)
{
var status = await Config();
if (status == GattCommunicationStatus.Success)
return true;
else
{
characteristic = null;
return false;
}
}
else
{
//提示用户 无法连接
}
}
}
}
catch
{
}
return result;
}
public bool IsBluetoothOpened
{
get
{
return isBlueBootoothOpend();
}
}
internal bool IsConnected
{
get { return characteristic != null; }
}
/// <summary>
/// 判断蓝牙是否打开
/// </summary>
/// <returns></returns>
private bool isBlueBootoothOpend()
{
try
{
try
{
PeerFinder.AlternateIdentities["Bluetooth:Paired"] = "";
var peers = PeerFinder.FindAllPeersAsync().AsTask().Result;
return true;
}
catch (Exception ex)
{
if ((uint)ex.HResult == 0x8007048F || ex.HResult == -)
{
return false;
}
return true;
}
}
catch
{
return false;
}
}
internal async Task<DeviceInformationCollection> GetDevices()
{
var serverID = @"00008009-0000-1000-7000-00805f9b8875"; //Serive ID
var zeCircleGUID = GattDeviceService.GetDeviceSelectorFromUuid(Guid.Parse(serverID));
var devices = await Windows.Devices.Enumeration.DeviceInformation.FindAllAsync(zeCircleGUID);
return devices;
}
private async Task<GattCommunicationStatus> Config()
{
GattCommunicationStatus status = GattCommunicationStatus.Unreachable;
characteristic = null;
characteristic = gattDeviceService.GetCharacteristics(Guid.Parse("00008002-0000-1000-8000-00805f9b34fb"))[];
writeCharateristic = gattDeviceService.GetCharacteristics(Guid.Parse("00008001-0000-1000-8000-00805f9b34fb"))[];
if (characteristic != null)
{
var currentDescriptorValue = await characteristic.ReadClientCharacteristicConfigurationDescriptorAsync();
if (currentDescriptorValue.Status == GattCommunicationStatus.Success)
{
status = await characteristic.WriteClientCharacteristicConfigurationDescriptorAsync(
GattClientCharacteristicConfigurationDescriptorValue.Notify);
if (status == GattCommunicationStatus.Success)
characteristic.ValueChanged += characteristic_ValueChanged;
}
}
return status;
}
#endregion
3.蓝牙数据接收部分
public event EventHandler OnConnectionFailed;
static UInt16 ReSendCount = ;
List<byte> receivedData = new List<byte>();
private bool IsEnableReconnect = true;
//数据处理
public void characteristic_ValueChanged(GattCharacteristic sender, GattValueChangedEventArgs args)
{
byte[] data = new byte[args.CharacteristicValue.Length];
DataReader.FromBuffer(args.CharacteristicValue).ReadBytes(data); //读取数据
receivedData.AddRange(data);
}