1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
| 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, FMX.ScrollBox;
type
TServerConnectionTH = class(TThread)
private
{ Private declarations }
FServerSocket: TBluetoothServerSocket;
FSocket: TBluetoothSocket;
FData: TBytes;
protected
procedure Execute; override;
procedure UpdateText;
public
{ Public declarations }
constructor Create(ACreateSuspended: Boolean);
destructor Destroy; override;
end;
TForm1 = class(TForm)
ButtonDiscover: TButton;
ButtonPair: TButton;
ButtonUnPair: TButton;
ButtonPairedDevices: TButton;
ButtonOpenReadingSocket: TButton;
Edit1: TEdit;
ButtonCloseReadingSocket: TButton;
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;
PanelServer: TPanel;
LabelServer: TLabel;
LabelClient: TLabel;
ButtonConnectToRFCOMM: TButton;
Secure: TCheckBox;
DisplayR: TMemo;
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 ComboboxDevices.ItemIndex > -1 then
FAdapter.Pair(FDiscoverDevices[ComboboxDevices.ItemIndex])
else
ShowMessage('No device selected');
end;
procedure TForm1.ButtonUnPairClick(Sender: TObject);
begin
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;
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;
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;
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;
Tthread.Synchronize(nil, procedure begin ComboBoxServices.DropDown end);
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;
DisplayR.Lines.Add(ServiceGUI);
FSocket := LDevice.CreateClientSocket(StringToGUID(ServiceGUI), Secure.IsChecked);
if FSocket <> nil then
begin
ItemIndex := ComboboxPaired.ItemIndex;
FSocket.Connect;
if not FSocket.Connected then
begin
DisplayR.Lines.Add('not Connected');
Exit;
End;
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;
// Tthread.Synchronize(nil, procedure begin ComboboxDevices.DropDown end);
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;
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
ButtonCloseReadingSocketClick(Sender);
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;
procedure TServerConnectionTH.UpdateText;
begin
if length(FData) > 0 then
begin
Form1.DisplayR.Lines.Add(TEncoding.UTF8.GetString(FData));
Form1.DisplayR.GoToTextEnd;
end;
end;
end. |
(
