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
|
{
*****************************************************************************
* CustomDrawnLazDeviceAPIS.pas *
* ---------- *
* *
* *
*****************************************************************************
*****************************************************************************
This file is part of the Lazarus Component Library (LCL)
See the file COPYING.modifiedLGPL.txt, included in this distribution,
for details about the license.
*****************************************************************************
}
unit CustomDrawnWSLazDeviceAPIS;
{$mode objfpc}{$H+}
{$I customdrawndefines.inc}
interface
uses
// RTL
Types, Math,
{$ifdef CD_Android}
jni,
{$endif}
// LCL
LazDeviceAPIs, LCLProc,
// Widgetset
customdrawnint, WSLCLClasses, WSLazDeviceAPIs;
type
{ TWSLazDeviceAPIS }
{ TCDWSLazDeviceAPIs }
TCDWSLazDeviceAPIs = class(TWSLazDeviceAPIs)
public
//
class procedure RequestPositionInfo(AMethod: TLazPositionMethod); override;
//
class procedure SendMessage(AMsg: TLazDeviceMessage); override;
//
class procedure StartReadingAccelerometerData(); override;
class procedure StopReadingAccelerometerData(); override;
// TLazDevice
class function GetDeviceManufacturer: string; override;
class function GetDeviceModel: string; override;
class function GetScreenRotation(AScreenIndex: Integer): TScreenRotation; override;
class procedure Vibrate(ADurationMS: Cardinal); override;
end;
implementation
{ TCDWSLazDeviceAPIs }
{$if defined(CD_Windows) or defined(CD_Cocoa) or defined(CD_X11)}
class procedure TCDWSLazDeviceAPIs.RequestPositionInfo(
AMethod: TLazPositionMethod);
begin
end;
class procedure TCDWSLazDeviceAPIs.SendMessage(AMsg: TLazDeviceMessage);
begin
end;
class procedure TCDWSLazDeviceAPIs.StartReadingAccelerometerData;
begin
end;
class procedure TCDWSLazDeviceAPIs.StopReadingAccelerometerData;
begin
end;
class function TCDWSLazDeviceAPIs.GetDeviceManufacturer: string;
begin
Result := '';
end;
class function TCDWSLazDeviceAPIs.GetDeviceModel: string;
begin
Result := '';
end;
class procedure TCDWSLazDeviceAPIs.Vibrate(ADurationMS: Cardinal);
begin
end;
class function TCDWSLazDeviceAPIs.GetScreenRotation(AScreenIndex: Integer): TScreenRotation;
begin
end;
{$endif}
{$ifdef CD_Android}
class procedure TCDWSLazDeviceAPIs.RequestPositionInfo(
AMethod: TLazPositionMethod);
var
lPositionMethod: jint;
begin
// Prepare the input
case AMethod of
pmGPS: lPositionMethod := 1;
pmNetwork: lPositionMethod := 2;
else
Exit;
end;
javaEnvRef^^.SetIntField(javaEnvRef, javaActivityObject, JavaField_lclkind, lPositionMethod);
// Call the method
javaEnvRef^^.CallVoidMethod(javaEnvRef, javaActivityObject, javaMethod_LCLDoRequestPositionInfo);
end;
class procedure TCDWSLazDeviceAPIs.SendMessage(AMsg: TLazDeviceMessage);
var
lJavaString: jstring;
lStr: String;
begin
// Prepare the input
// String fields
lStr := AMsg.Body;
lJavaString :=javaEnvRef^^.NewStringUTF(javaEnvRef, PChar(lStr));
javaEnvRef^^.SetObjectField(javaEnvRef, javaActivityObject, JavaField_lcltext, lJavaString);
javaEnvRef^^.DeleteLocalRef(javaEnvRef, lJavaString);
//
lStr := AMsg.destinationAddress.Text;
lJavaString :=javaEnvRef^^.NewStringUTF(javaEnvRef, PChar(lStr));
javaEnvRef^^.SetObjectField(javaEnvRef, javaActivityObject, JavaField_lcldestination, lJavaString);
javaEnvRef^^.DeleteLocalRef(javaEnvRef, lJavaString);
// Message type
javaEnvRef^^.SetIntField(javaEnvRef, javaActivityObject, JavaField_lclkind, 1);
// Call the method
javaEnvRef^^.CallVoidMethod(javaEnvRef, javaActivityObject, javaMethod_LCLDoSendMessage);
end;
class procedure TCDWSLazDeviceAPIs.StartReadingAccelerometerData;
begin
// Call the method
javaEnvRef^^.CallVoidMethod(javaEnvRef, javaActivityObject, javaMethod_LCLDoStartReadingAccelerometer);
end;
class procedure TCDWSLazDeviceAPIs.StopReadingAccelerometerData;
begin
// Call the method
javaEnvRef^^.CallVoidMethod(javaEnvRef, javaActivityObject, javaMethod_LCLDoStopReadingAccelerometer);
end;
class function TCDWSLazDeviceAPIs.GetDeviceManufacturer: string;
var
lFieldID: JFieldID;
lJavaString: JString;
lNativeString: PChar;
begin
lFieldID := javaEnvRef^^.GetStaticFieldID(javaEnvRef, javaAndroidOSBuildClass, 'MANUFACTURER', 'Ljava/lang/String;');
lJavaString := JString(javaEnvRef^^.GetStaticObjectField(javaEnvRef, javaAndroidOSBuildClass, lFieldID));
lNativeString := javaEnvRef^^.GetStringUTFChars(javaEnvRef, lJavaString, nil);
Result := lNativeString;
javaEnvRef^^.ReleaseStringUTFChars(javaEnvRef, lJavaString, lNativeString);
end;
class function TCDWSLazDeviceAPIs.GetDeviceModel: string;
var
lFieldID: JFieldID;
lJavaString: JString;
lNativeString: PChar;
begin
lFieldID := javaEnvRef^^.GetStaticFieldID(javaEnvRef, javaAndroidOSBuildClass, 'MODEL', 'Ljava/lang/String;');
lJavaString := JString(javaEnvRef^^.GetStaticObjectField(javaEnvRef, javaAndroidOSBuildClass, lFieldID));
lNativeString := javaEnvRef^^.GetStringUTFChars(javaEnvRef, lJavaString, nil);
Result := lNativeString;
javaEnvRef^^.ReleaseStringUTFChars(javaEnvRef, lJavaString, lNativeString);
end;
class function TCDWSLazDeviceAPIs.GetScreenRotation(AScreenIndex: Integer
): TScreenRotation;
var
windowManagerClass, displayClass : jclass;
javaMethodId_WindowService, javaMethodId_getDefaultDisplay, javaMethodId_getRotation : JMethodID;
windowManagerObject, displayObject: JObject;
javaString_WINDOW_SERVICE, javaString_getDefaultDisplay : JString;
lRotation: Jint;
const
ROTATION_0 = 0;
ROTATION_180 = 2;
ROTATION_270 = 3;
ROTATION_90 = 1;
begin
windowManagerClass := javaEnvRef^^.FindClass(javaEnvRef, 'android/view/WindowManager');
displayClass := javaEnvRef^^.FindClass(javaEnvRef, 'android/view/Display');
// get the string Context.WINDOW_SERVICE remember that NewStringUTF does not require ReleaseStringUTFChars
javaString_WINDOW_SERVICE := javaEnvRef^^.NewStringUTF(javaEnvRef, pchar('getWindowManager'));
// get method id for WindowManager object
javaMethodId_WindowService := javaEnvRef^^.GetMethodID(javaEnvRef, javaAndroidAppActivityClass, 'getWindowManager', '()Landroid/view/WindowManager;');
// Get the WindowManager object
// Window w = (Window) getSystemService(Context.WINDOW_SERVICE);
windowManagerObject := javaEnvRef^^.CallObjectMethod(javaEnvRef, javaActivityObject, javaMethodId_WindowService);
javaString_getDefaultDisplay := javaEnvRef^^.NewStringUTF(javaEnvRef, pchar('getDefaultDisplay'));
// Get method id for Display object
javaMethodId_getDefaultDisplay := javaEnvRef^^.GetMethodID(javaEnvRef, windowManagerClass, 'getDefaultDisplay', '()Landroid/view/Display;');
// Get the display object
displayObject := javaEnvRef^^.CallObjectMethod(javaEnvRef, windowManagerObject, javaMethodId_getDefaultDisplay);
// Get method id for method: getRotation
javaMethodId_getRotation := javaEnvRef^^.GetMethodID(javaEnvRef, displayClass, 'getRotation', '()I');
// Now call getRotation method in the display object
lRotation := javaEnvRef^^.CallIntMethod(javaEnvRef, displayObject, javaMethodId_getRotation);
case lRotation of
ROTATION_180: Result := srRotation_180;
ROTATION_270: Result := srRotation_270;
ROTATION_90: Result := srRotation_90;
else
Result := srRotation_0;
end;
end;
class procedure TCDWSLazDeviceAPIs.Vibrate(ADurationMS: Cardinal);
var
lVibratorObject: JObject;
javaMethod_vibrate: JMethodID;
javaString_VIBRATOR_SERVICE: JString;
// array for the parameters
lParams: array[0..0] of JValue;
const
javaConstant_VIBRATOR_SERVICE = 'vibrator';
begin
// First IDs
javaMethod_vibrate := javaEnvRef^^.GetMethodID(javaEnvRef, javaAndroidOSVibratorClass, 'vibrate', '(J)V');
// get the string Context.VIBRATOR_SERVICE remember that NewStringUTF does not require ReleaseStringUTFChars
javaString_VIBRATOR_SERVICE := javaEnvRef^^.NewStringUTF(javaEnvRef, pchar(javaConstant_VIBRATOR_SERVICE));
// Get the vibrator object
// Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
lParams[0].l := javaString_VIBRATOR_SERVICE;
lVibratorObject := javaEnvRef^^.CallObjectMethodA(javaEnvRef, javaActivityObject, javaMethod_getSystemService, @lParams[0]);
// Now call the method from the vibrator object
lParams[0].j := ADurationMS;
javaEnvRef^^.CallVoidMethodA(javaEnvRef, lVibratorObject, javaMethod_Vibrate, @lParams[0]);
end;
{$endif}
end.
|
