Delphi XE7的蓝牙 Bluetooth
Delphi XE7已经内建了蓝牙功能，提供了System.Bluetooth.pas单元
顾名思义，System表示XE7的蓝牙功能可以在Windows，Android，IOS系统内使用
System.Bluetooth单元中主要包含一下几个类,其中带LE的支持所有系统，不带LE的类不支持Ios系统，带与不带LE功能是一样的。
TBluetoothManager
TBluetoothDeviceList
TBluetoothAdapter
TBluetoothDevice
TBluetoothService
TBluetoothServiceList
TBluetoothSocket
TBluetoothLEManager
TBluetoothLEDeviceList
TBluetoothLEAdapter
TBluetoothLEDevice
TBluetoothLEService
TBluetoothLEServiceList
TBluetoothLESocket
其中：
TBluetoothManager是蓝牙管理器，用于蓝牙设备管理，包括发现蓝牙设备，获取配对设备，处理远程配对请求等功能
TBluetoothDeviceList是蓝牙设备列表，TBluetoothDeviceList = class(TObjectList<TBluetoothDevice>),可以通过TBluetoothManager.GetPairedDevices获得配对设备列表
TBluetoothAdapter本机蓝牙设备，实现配对、取消配对等功能，可通过TBluetoothManager.CurrentAdapter得到当前蓝牙设备
TBluetoothDevice远端蓝牙设备，每个远端设备可以提供若干个服务（TBluetoothService），
TBluetoothService远端蓝牙设备服务，包括服务名和UUID
TBluetoothService = record Name: string; UUID: TBluetoothUUID; end;
TBluetoothServiceList服务列表 = class(TList<TBluetoothService>);可通过TBluetoothDevice.GetServices获得远端设备服务列表
TBluetoothSocket蓝牙通讯套接字,通过 TBluetoothDevice.CreateClientSocket(StringToGUID(ServiceGUI), True/False)创建，
下面是一个XE7自带的例子，记得在Android下把相关权限添加到工程设置中。
unit Unit1; interface uses System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants, FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, System.Bluetooth, FMX.Layouts, FMX.ListBox, FMX.StdCtrls, FMX.Memo, FMX.Controls.Presentation, FMX.Edit, FMX.TabControl; type TServerConnectionTH = class(TThread) private { Private declarations } FServerSocket: TBluetoothServerSocket; FSocket: TBluetoothSocket; FData: TBytes; protected procedure Execute; override; public { Public declarations } constructor Create(ACreateSuspended: Boolean); destructor Destroy; override; end; TForm1 = class(TForm) ButtonDiscover: TButton; ButtonPair: TButton; ButtonUnPair: TButton; ButtonPairedDevices: TButton; DisplayR: TMemo; Edit1: TEdit; Button2: TButton; FreeSocket: TButton; Labeldiscoverable: TLabel; ComboBoxDevices: TComboBox; ComboBoxPaired: TComboBox; Panel1: TPanel; TabControl1: TTabControl; TabItem1: TTabItem; TabItem2: TTabItem; LabelNameSarver: TLabel; ButtonServices: TButton; ComboBoxServices: TComboBox; PanelClient: TPanel; LabelClient: TLabel; ButtonConnectToRFCOMM: TButton; PanelServer: TPanel; ButtonCloseReadingSocket: TButton; ButtonOpenReadingSocket: TButton; LabelServer: TLabel; procedure ButtonDiscoverClick(Sender: TObject); procedure ButtonPairClick(Sender: TObject); procedure ButtonUnPairClick(Sender: TObject); procedure ButtonPairedDeviceClick(Sender: TObject); procedure FormShow(Sender: TObject); procedure ButtonOpenReadingSocketClick(Sender: TObject); procedure ButtonConnectToRFCOMMClick(Sender: TObject); procedure ButtonCloseReadingSocketClick(Sender: TObject); procedure Button2Click(Sender: TObject); procedure FormClose(Sender: TObject; var Action: TCloseAction); procedure FreeSocketClick(Sender: TObject); function ManagerConnected:Boolean; function GetServiceName(GUID: string): string; procedure ComboBoxPairedChange(Sender: TObject); procedure ButtonServicesClick(Sender: TObject); private { Private declarations } FBluetoothManager: TBluetoothManager; FDiscoverDevices: TBluetoothDeviceList; FPairedDevices: TBluetoothDeviceList; FAdapter: TBluetoothAdapter; FData: TBytes; FSocket: TBluetoothSocket; ItemIndex: Integer; ServerConnectionTH: TServerConnectionTH; procedure DevicesDiscoveryEnd(const Sender: TObject; const ADevices: TBluetoothDeviceList); procedure PairedDevices; procedure SendData; public { Public declarations } end; Const ServiceName = 'Basic Text Server'; ServiceGUI = '{B62C4E8D-62CC-404B-BBBF-BF3E3BBB1378}'; var Form1: TForm1; implementation {$R *.fmx} {$R *.NmXhdpiPh.fmx ANDROID} {$R *.LgXhdpiPh.fmx ANDROID} {$R *.SmXhdpiPh.fmx ANDROID} {$R *.Macintosh.fmx MACOS} {$R *.iPhone4in.fmx IOS} {$R *.Windows.fmx MSWINDOWS} procedure TForm1.ButtonPairClick(Sender: TObject); begin if ManagerConnected then if ComboboxDevices.ItemIndex > -1 then FAdapter.Pair(FDiscoverDevices[ComboboxDevices.ItemIndex]) else ShowMessage('No device selected'); end; procedure TForm1.ButtonUnPairClick(Sender: TObject); begin if ManagerConnected then if ComboboxPaired.ItemIndex > -1 then FAdapter.UnPair(FPairedDevices[ComboboxPaired.ItemIndex]) else ShowMessage('No Paired device selected'); end; procedure TForm1.ComboBoxPairedChange(Sender: TObject); begin LabelNameSarver.Text := ComboBoxPaired.Items[ComboBoxPaired.ItemIndex]; end; procedure TForm1.PairedDevices; var I: Integer; begin ComboboxPaired.Clear; if ManagerConnected then begin FPairedDevices := FBluetoothManager.GetPairedDevices; if FPairedDevices.Count > 0 then for I:= 0 to FPairedDevices.Count - 1 do ComboboxPaired.Items.Add(FPairedDevices[I].DeviceName) else ComboboxPaired.Items.Add('No Paired Devices'); end; end; procedure TForm1.ButtonPairedDeviceClick(Sender: TObject); begin PairedDevices; ComboboxPaired.DropDown; end; procedure TForm1.ButtonServicesClick(Sender: TObject); var LServices: TBluetoothServiceList; LDevice: TBluetoothDevice; I: Integer; begin ComboBoxServices.Clear; if ManagerConnected then if ComboboxPaired.ItemIndex > -1 then begin LDevice := FPairedDevices[ComboboxPaired.ItemIndex] as TBluetoothDevice; LServices := LDevice.GetServices; for I := 0 to LServices.Count - 1 do ComboBoxServices.Items.Add(LServices[I].Name + ' --> ' + GUIDToString(LServices[I].UUID)); ComboBoxServices.ItemIndex := 0; ComboBoxServices.DropDown; end else ShowMessage('No paired device selected'); end; procedure TForm1.FreeSocketClick(Sender: TObject); begin FreeAndNil(FSocket); DisplayR.Lines.Add('Client socket set free'); DisplayR.GoToLineEnd; end; procedure TForm1.Button2Click(Sender: TObject); begin DisplayR.ReadOnly := False; DisplayR.SelectAll; DisplayR.DeleteSelection; DisplayR.ReadOnly := True; end; function TForm1.GetServiceName(GUID: string): string; var LServices: TBluetoothServiceList; LDevice: TBluetoothDevice; I: Integer; begin LDevice := FPairedDevices[ComboboxPaired.ItemIndex] as TBluetoothDevice; LServices := LDevice.GetServices; for I := 0 to LServices.Count - 1 do begin if StringToGUID(GUID) = LServices[I].UUID then begin Result := LServices[I].Name; break; end; end; end; procedure TForm1.ButtonConnectToRFCOMMClick(Sender: TObject); begin if ManagerConnected then try SendData; except on E : Exception do begin DisplayR.Lines.Add(E.Message); DisplayR.GoToTextEnd; FreeAndNil(FSocket); end; end; end; function TForm1.ManagerConnected:Boolean; begin if FBluetoothManager.ConnectionState = TBluetoothConnectionState.Connected then begin Labeldiscoverable.Text := 'Device discoverable as "'+FBluetoothManager.CurrentAdapter.AdapterName+'"'; Result := True; end else begin Result := False; DisplayR.Lines.Add('No Bluetooth device Found'); DisplayR.GoToTextEnd; end end; procedure TForm1.SendData; var ToSend: TBytes; LDevice: TBluetoothDevice; begin if (FSocket = nil) or (ItemIndex <> ComboboxPaired.ItemIndex) then begin if ComboboxPaired.ItemIndex > -1 then begin LDevice := FPairedDevices[ComboboxPaired.ItemIndex] as TBluetoothDevice; DisplayR.Lines.Add(GetServiceName(ServiceGUI)); DisplayR.GoToTextEnd; FSocket := LDevice.CreateClientSocket(StringToGUID(ServiceGUI), False); if FSocket <> nil then begin ItemIndex := ComboboxPaired.ItemIndex; FSocket.Connect; ToSend := TEncoding.UTF8.GetBytes(Edit1.Text); FSocket.SendData(ToSend); DisplayR.Lines.Add('Text Sent'); DisplayR.GoToTextEnd; end else ShowMessage('Out of time -15s-'); end else ShowMessage('No paired device selected'); end else begin ToSend := TEncoding.UTF8.GetBytes(Edit1.Text); FSocket.SendData(ToSend); DisplayR.Lines.Add('Text Sent'); DisplayR.GoToTextEnd; end; end; procedure TForm1.ButtonDiscoverClick(Sender: TObject); begin ComboboxDevices.Clear; if ManagerConnected then begin FAdapter := FBluetoothManager.CurrentAdapter; FBluetoothManager.StartDiscovery(10000); FBluetoothManager.OnDiscoveryEnd := DevicesDiscoveryEnd; end; end; procedure TForm1.DevicesDiscoveryEnd(const Sender: TObject; const ADevices: TBluetoothDeviceList); var I: Integer; begin FDiscoverDevices := ADevices; for I := 0 to ADevices.Count - 1 do ComboboxDevices.Items.Add(ADevices[I].DeviceName + ' -> ' + ADevices[I].Address); ComboboxDevices.ItemIndex := 0; end; procedure TForm1.ButtonOpenReadingSocketClick(Sender: TObject); begin if (ServerConnectionTH = nil) and ManagerConnected then begin try FAdapter := FBluetoothManager.CurrentAdapter; ServerConnectionTH := TServerConnectionTH.Create(True); ServerConnectionTH.FServerSocket := FAdapter.CreateServerSocket(ServiceName, StringToGUID(ServiceGUI), False); ServerConnectionTH.Start; DisplayR.Lines.Add(' - Service created: "'+ServiceName+'"'); DisplayR.GoToTextEnd; except on E : Exception do begin DisplayR.Lines.Add(E.Message); DisplayR.GoToTextEnd; end; end; end; end; procedure TForm1.ButtonCloseReadingSocketClick(Sender: TObject); begin if ServerConnectionTH <> nil then begin ServerConnectionTH.Terminate; ServerConnectionTH.WaitFor; FreeAndNil(ServerConnectionTH); DisplayR.Lines.Add(' - Service removed -'); DisplayR.GoToTextEnd; end end; procedure TForm1.FormShow(Sender: TObject); begin try LabelServer.Text := ServiceName; LabelClient.Text := 'Client of '+ServiceName; FBluetoothManager := TBluetoothManager.Current; FAdapter := FBluetoothManager.CurrentAdapter; if ManagerConnected then begin PairedDevices; ComboboxPaired.ItemIndex := 0; end; except on E : Exception do begin ShowMessage(E.Message); end; end; end; procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction); begin if ServerConnectionTH <> nil then begin ServerConnectionTH.Terminate; ServerConnectionTH.WaitFor; FreeAndNil(ServerConnectionTH); end end; {TServerConnection} constructor TServerConnectionTH.Create(ACreateSuspended: Boolean); begin inherited; end; destructor TServerConnectionTH.Destroy; begin FSocket.Free; FServerSocket.Free; inherited; end; procedure TServerConnectionTH.execute; var ASocket: TBluetoothSocket; Msg: string; begin while not Terminated do try ASocket := nil; while not Terminated and (ASocket = nil) do ASocket := FServerSocket.Accept(100); if(ASocket <> nil) then begin FSocket := ASocket; while not Terminated do begin FData := ASocket.ReadData; if length(FData) > 0 then Synchronize(procedure begin Form1.DisplayR.Lines.Add(TEncoding.UTF8.GetString(FData)); Form1.DisplayR.GoToTextEnd; end); sleep(100); end; end; except on E : Exception do begin Msg := E.Message; Synchronize(procedure begin Form1.DisplayR.Lines.Add('Server Socket closed: ' + Msg); Form1.DisplayR.GoToTextEnd; end); end; end; end; end.
窗体文件
object Form1: TForm1 Left = 0 Top = 0 Caption = 'Basic Classic Bluetooth Demo' ClientHeight = 570 ClientWidth = 360 FormFactor.Width = 320 FormFactor.Height = 480 FormFactor.Devices = [Desktop] OnClose = FormClose OnShow = FormShow DesignerMasterStyle = 3 object Panel1: TPanel Align = Client Size.Width = 360.000000000000000000 Size.Height = 570.000000000000000000 Size.PlatformDefault = False TabOrder = 13 object TabControl1: TTabControl Align = Client FullSize = True Size.Width = 360.000000000000000000 Size.Height = 570.000000000000000000 Size.PlatformDefault = False TabHeight = 49.000000000000000000 TabIndex = 0 TabOrder = 1 TabPosition = Bottom object TabItem1: TTabItem CustomIcon = < item end> IsSelected = True Size.Width = 180.000000000000000000 Size.Height = 49.000000000000000000 Size.PlatformDefault = False TabOrder = 0 Text = 'Bluetooth settings' object ButtonDiscover: TButton Position.X = 4.000000000000000000 Position.Y = 59.000000000000000000 Size.Width = 158.000000000000000000 Size.Height = 31.000000000000000000 Size.PlatformDefault = False TabOrder = 0 Text = 'Discover devices' OnClick = ButtonDiscoverClick end object ButtonPair: TButton Position.X = 191.000000000000000000 Position.Y = 59.000000000000000000 Size.Width = 78.000000000000000000 Size.Height = 31.000000000000000000 Size.PlatformDefault = False TabOrder = 1 Text = 'Pair' OnClick = ButtonPairClick end object ButtonPairedDevices: TButton Position.X = 4.000000000000000000 Position.Y = 140.000000000000000000 Size.Width = 158.000000000000000000 Size.Height = 31.000000000000000000 Size.PlatformDefault = False TabOrder = 2 Text = 'Paired Devices' OnClick = ButtonPairedDeviceClick end object ButtonUnPair: TButton Position.X = 277.000000000000000000 Position.Y = 67.000000000000000000 Size.Width = 80.000000000000000000 Size.Height = 22.000000000000000000 Size.PlatformDefault = False TabOrder = 3 Text = 'UnPair' OnClick = ButtonUnPairClick end object ComboBoxDevices: TComboBox Position.X = 4.000000000000000000 Position.Y = 92.000000000000000000 Size.Width = 352.000000000000000000 Size.Height = 32.000000000000000000 Size.PlatformDefault = False TabOrder = 4 end object ComboBoxPaired: TComboBox Position.X = 4.000000000000000000 Position.Y = 173.000000000000000000 Size.Width = 352.000000000000000000 Size.Height = 32.000000000000000000 Size.PlatformDefault = False TabOrder = 5 OnChange = ComboBoxPairedChange end object ButtonServices: TButton Position.X = 4.000000000000000000 Position.Y = 221.000000000000000000 Size.Width = 158.000000000000000000 Size.Height = 31.000000000000000000 Size.PlatformDefault = False TabOrder = 6 Text = 'Services' OnClick = ButtonServicesClick end object ComboBoxServices: TComboBox Position.X = 4.000000000000000000 Position.Y = 254.000000000000000000 Size.Width = 352.000000000000000000 Size.Height = 32.000000000000000000 Size.PlatformDefault = False TabOrder = 7 end end object TabItem2: TTabItem CustomIcon = < item end> IsSelected = False Size.Width = 180.000000000000000000 Size.Height = 49.000000000000000000 Size.PlatformDefault = False TabOrder = 0 Text = 'Service demo' object PanelClient: TPanel Position.Y = 134.000000000000000000 Size.Width = 360.000000000000000000 Size.Height = 153.000000000000000000 Size.PlatformDefault = False TabOrder = 0 object Button2: TButton Position.X = 4.000000000000000000 Position.Y = 115.000000000000000000 Size.Width = 73.000000000000000000 Size.Height = 25.000000000000000000 Size.PlatformDefault = False TabOrder = 0 Text = 'Clear' OnClick = Button2Click end object Edit1: TEdit Touch.InteractiveGestures = [LongTap, DoubleTap] TabOrder = 1 Text = 'I am the text sent' Position.X = 4.000000000000000000 Position.Y = 71.000000000000000000 Size.Width = 343.000000000000000000 Size.Height = 32.000000000000000000 Size.PlatformDefault = False end object FreeSocket: TButton Position.X = 190.000000000000000000 Position.Y = 115.000000000000000000 Size.Width = 157.000000000000000000 Size.Height = 25.000000000000000000 Size.PlatformDefault = False TabOrder = 2 Text = 'Free Client Socket' OnClick = FreeSocketClick end object LabelNameSarver: TLabel Position.X = 157.000000000000000000 Position.Y = 22.000000000000000000 Size.Width = 180.000000000000000000 Size.Height = 40.000000000000000000 Size.PlatformDefault = False end object LabelClient: TLabel StyledSettings = [Family, Size, FontColor] Position.X = 4.000000000000000000 Size.Width = 227.000000000000000000 Size.Height = 20.000000000000000000 Size.PlatformDefault = False Text = 'Client' end object ButtonConnectToRFCOMM: TButton Position.X = 4.000000000000000000 Position.Y = 28.000000000000000000 Size.Width = 143.000000000000000000 Size.Height = 33.000000000000000000 Size.PlatformDefault = False TabOrder = 5 Text = 'Send text to ->' OnClick = ButtonConnectToRFCOMMClick end end object PanelServer: TPanel Position.Y = 40.000000000000000000 Size.Width = 360.000000000000000000 Size.Height = 93.000000000000000000 Size.PlatformDefault = False TabOrder = 1 object ButtonCloseReadingSocket: TButton Position.X = 195.000000000000000000 Position.Y = 32.000000000000000000 Size.Width = 160.000000000000000000 Size.Height = 36.000000000000000000 Size.PlatformDefault = False TabOrder = 0 Text = 'Remove text service' OnClick = ButtonCloseReadingSocketClick end object ButtonOpenReadingSocket: TButton Position.X = 4.000000000000000000 Position.Y = 32.000000000000000000 Size.Width = 160.000000000000000000 Size.Height = 36.000000000000000000 Size.PlatformDefault = False TabOrder = 1 Text = 'Create text service' OnClick = ButtonOpenReadingSocketClick end object LabelServer: TLabel StyledSettings = [Family, Size, FontColor] Position.X = 4.000000000000000000 Size.Width = 227.000000000000000000 Size.Height = 20.000000000000000000 Size.PlatformDefault = False Text = 'Server' end end end end object Labeldiscoverable: TLabel StyledSettings = [Family, Style, FontColor] Position.X = 16.000000000000000000 Position.Y = 8.000000000000000000 Size.Width = 321.000000000000000000 Size.Height = 23.000000000000000000 Size.PlatformDefault = False end object DisplayR: TMemo Touch.InteractiveGestures = [Pan, LongTap, DoubleTap] Anchors = [akLeft, akTop, akRight] Position.Y = 288.000000000000000000 Size.Width = 360.000000000000000000 Size.Height = 232.000000000000000000 Size.PlatformDefault = False TabOrder = 2 TabStop = False ReadOnly = True ShowSizeGrip = True end end end