Android实例-Delphi开发蓝牙官方实例解析(XE10+小米2+小米5)

亦余心之所善兮，虽九死其犹未悔。这篇文章主要讲述Android实例-Delphi开发蓝牙官方实例解析(XE10+小米2+小米5)相关的知识，希望能为你提供帮助。
Android实例-Delphi开发蓝牙官方实例解析(XE10+小米2+小米5)

文章图片

文章图片

相关资料：
1.http://blog.csdn.net/laorenshen/article/details/41149803
2.http://www.cnblogs.com/findumars/p/5149128.html

一、理清概念
1.蓝牙设备：是指代有蓝牙通信的手机、电脑、平板、打印机、耳机等。
2.设备名称：是指设备打开蓝牙功能后，在其他设备中显示的名字，如图1用的A、B、C等。
3.蓝牙关态：如果A手机没有打开蓝牙功能，A手机是不能使用搜索的。就算A打开蓝牙，其他的设备没打开，A也是搜索不到的，如E。
4.服务名称：每一个设备上打开蓝牙时，都会提供不同的服务，服务的名称是在其他设备上显示的。
5.服务是从哪里来的？其实打开蓝牙功能，只是设备开启此功能，但没有实际的应用功能。必须由某个程序或应用建立相关的服务，其他设备才能与此设备通信。
二、Delphi中提供了什么？
1.蓝牙相关功能在System.Bluetooth.pas单元。
2.Bluetooth.pas提供的对像
TBluetoothManager：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。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
TBluetoothDevice：远端蓝牙设备，每个远端设备可以提供若干个服务
TBluetoothService：远端蓝牙设备服务，包括服务名和UUID
TBluetoothServiceList：服务列表。可通过TBluetoothDevice.GetServices获得远端设备服务列表
TBluetoothSocket：蓝牙通讯套接字。
三、实例解析
小米手机2
1.打开蓝牙
2.点击“发现设备”,过一会就会在下面的列表中显示出所有搜索到的蓝牙设备。
3.在出现的蓝牙设备列表中，选一个。比如“小米手机5”。
4.点击“配对”，这时小米手机5会收到配对信息。
5.这时配对设备列表中就会出现小米手机5，选中它。
6.点击“服务”，出现N个服务，但这时你不知道怎么与小米手机5通信。对的还少个服务。
7.操作小米手机5中的第三步。
8.在服务列表中选中最下方的（晕，不知道为什么名字是个空串）。
9.进入服务演示页面。
10.点“发送短信给”不好意思，我不小心点了二下，所以小米手机5收到二次。
11.这时小米手机5就收到了信息。
小米手机5
1.打开蓝牙
2.接受小米手机2的配对请求。
3.点击“创建文本服务”
PS:
1.同一个程序里包括了发送信息，与接收信息。所以程序可以在二个手机上测试。
2.现在只能小米手机2给小米手机5发信息，为什么呢？因为小米手机2没有建服务呀。
3.如果小米手机5的程序退出，你会发现小米手机2上查看服务，刚才小米手机5建立的服务不见了。
4.图片本来很清楚，但为了文章的大小，就成了现在的惨不忍睹了。望大家见谅。

Delphi官方实例源码：

unit Unit1; interfaceuses 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, FMX.ScrollBox; type //读取数据线程 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; Label1: 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} //配对(Pair) procedure TForm1.ButtonPairClick(Sender: TObject); begin if ManagerConnected then if ComboboxDevices.ItemIndex > -1 then FAdapter.Pair(FDiscoverDevices[ComboboxDevices.ItemIndex]) else ShowMessage(\'没有选择的设备(No device selected)\'); end; //取消配对(UnPair) procedure TForm1.ButtonUnPairClick(Sender: TObject); begin if ManagerConnected then if ComboboxPaired.ItemIndex > -1 then FAdapter.UnPair(FPairedDevices[ComboboxPaired.ItemIndex]) else ShowMessage(\'未选择配对设备(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(\'没有配对设备(No Paired Devices)\'); end; end; //配对设备(Paired Devices) procedure TForm1.ButtonPairedDeviceClick(Sender: TObject); begin PairedDevices; ComboboxPaired.DropDown; end; //服务(Services) 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(\'未选择配对设备(No paired device selected)\'); end; //释放客户套接字(Free Client Socket) procedure TForm1.FreeSocketClick(Sender: TObject); begin FreeAndNil(FSocket); DisplayR.Lines.Add(\'客户套接字释放(Client socket set free)\'); DisplayR.GoToLineEnd; end; //清空(Clear) 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; //发送短信给 - > (Send text to -> ) 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; //判断蓝牙的状态 function TForm1.ManagerConnected:Boolean; begin if FBluetoothManager.ConnectionState = TBluetoothConnectionState.Connected then begin Labeldiscoverable.Text := FBluetoothManager.CurrentAdapter.AdapterName; Result := True; end else begin Result := False; DisplayR.Lines.Add(\'没有发现蓝牙设备(No Bluetooth device Found)\'); DisplayR.GoToTextEnd; end end; //发送信息方法 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(\'短信已发送(Text Sent)\'); DisplayR.GoToTextEnd; end else ShowMessage(\'Out of time -15s-\'); end else ShowMessage(\'未选择配对设备(No paired device selected)\'); end else begin ToSend := TEncoding.UTF8.GetBytes(Edit1.Text); FSocket.SendData(ToSend); DisplayR.Lines.Add(\'短信已发送(Text Sent)\'); DisplayR.GoToTextEnd; end; end; //发现设备(Discover devices) 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); begin TThread.Synchronize(nil, procedure 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); end; //创建文本服务(Create text service) 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(\' - 创建服务(Service created): "\'+ServiceName+\'"\'); DisplayR.GoToTextEnd; except on E : Exception do begin DisplayR.Lines.Add(E.Message); DisplayR.GoToTextEnd; end; end; end; end; //删除文字服务(Remove text service) procedure TForm1.ButtonCloseReadingSocketClick(Sender: TObject); begin if ServerConnectionTH < > nil then begin ServerConnectionTH.Terminate; ServerConnectionTH.WaitFor; FreeAndNil(ServerConnectionTH); DisplayR.Lines.Add(\' - 服务删除(Service removed) -\'); DisplayR.GoToTextEnd; end end; //显示窗体时，建立蓝牙管理器，并检查是否开启 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; //关闭时，释放线程 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; //释放资源 destructor TServerConnectionTH.Destroy; begin FSocket.Free; FServerSocket.Free; inherited; end; //读取线程的读取数据方法 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(\'服务器关闭套接字(Server Socket closed): \' + Msg); Form1.DisplayR.GoToTextEnd; end); end; end; end; end.

【Android实例-Delphi开发蓝牙官方实例解析(XE10+小米2+小米5)】