Programming Wireless Devices with the Java¿2 Platform, Micro Edition

Cover......Page 1
Contents......Page 8
Figures......Page 18
Foreword......Page 20
Preface......Page 22
Acknowledgments......Page 28
 1.1 The Wireless Internet Revolution......Page 32
 1.2 Why Java™ Technology for Wireless Devices?......Page 33
 1.3 A Bit of History......Page 34
 1.4 J2ME™ Standardization Efforts......Page 35
 2.1 Java 2 Platform......Page 38
 2.2 Java 2 Platform, Micro Edition (J2ME)......Page 40
 2.3 Key Concepts of the J2ME Architecture......Page 41
  2.3.1 Profiles......Page 43
  2.3.2 Configurations......Page 45
 2.4 Evolution of the J2ME Platform......Page 48
  2.4.1 Core J2ME Standardization Efforts......Page 49
  2.4.2 Optional Packages for the Wireless Market......Page 50
 3.1 High-Level Goals......Page 54
  3.1.2 Third-Party Application Development......Page 55
  3.1.3 Independence of Network Technology Standards......Page 56
 3.2 Target Devices......Page 57
 3.3 General Notes on Consumer Devices and Embedded Systems......Page 59
 3.4 Requirements......Page 61
  3.4.1 Hardware Requirements of CLDC......Page 62
  3.4.3 Software Requirements of CLDC......Page 63
  3.4.4 Software Requirements of MIDP......Page 64
  3.4.5 J2ME Requirements......Page 65
  3.5.2 Scope of MIDP......Page 66
4 Connected Limited Device Configuration......Page 70
  4.1.2 CLDC 1.1 Expert Group......Page 71
  4.2.1 Architectural Overview......Page 72
  4.2.2 The Concept of a Java Application......Page 73
  4.2.3 Application Security......Page 74
  4.2.4 Application Management......Page 76
 4.3 Java Language Specification Compatibility......Page 77
  4.3.2 Error-Handling Limitations......Page 78
  4.4.1 Features Eliminated from the Virtual Machine......Page 79
  4.4.2 Class File Verification......Page 81
  4.4.3 Class File Format and Class Loading......Page 83
 4.5 New for CLDC 1.1......Page 86
 5.1 Background and Goals......Page 88
  5.2.1 System Classes......Page 89
  5.2.4 Input/Output Classes......Page 90
  5.2.7 Exception and Error Classes......Page 91
  5.2.9 Internationalization Support......Page 93
  5.2.10 Property Support......Page 94
  5.3.1 Background and Motivation......Page 95
  5.3.2 The Generic Connection Framework......Page 96
  5.3.4 Summary of the Generic Connection Interfaces......Page 98
 5.4 New for CLDC 1.1......Page 101
6 Mobile Information Device Profile......Page 104
  6.1.2 MIDP 2.0 Expert Group......Page 105
 6.2 Areas Covered by the MIDP Specification......Page 107
 7.1 MIDlets......Page 110
  7.1.1 MIDlet States......Page 113
  7.1.2 Using the startApp, pauseApp, and destroyApp Methods......Page 115
  7.1.3 Application Lifecycle and the User Interface API......Page 118
 7.3 New for MIDP 2.0......Page 119
8 MIDP User Interface Libraries......Page 120
 8.2 Structure of the MIDP User Interface API......Page 121
  8.2.1 Displayable Model......Page 122
  8.2.3 High-Level User Interface......Page 124
 8.3 Display......Page 126
  8.3.1 Current Displayable......Page 127
 8.4 Displayables......Page 128
  8.4.1 Ticker......Page 130
  8.5.1 Command Mapping to Device User Interface......Page 131
  8.5.2 Command Properties......Page 132
  8.5.3 Command Types......Page 133
  8.5.4 Command Listeners......Page 136
  8.6.2 Adaptation to Device-Specific User Interface Style......Page 137
  8.6.3 Device-Provided Operations......Page 138
  8.6.4 A Note on Concurrency......Page 139
 8.7 New for MIDP 2.0......Page 140
 9.1 List......Page 142
  9.1.1 Implicit List......Page 144
  9.1.2 Exclusive Choice List......Page 146
  9.1.4 Long List Elements......Page 147
  9.1.5 List Element Fonts......Page 148
 9.2 TextBox......Page 149
  9.2.1 Input Constraints......Page 150
  9.2.2 Input Modes......Page 152
 9.3 Alert......Page 153
  9.3.2 Activity Indicator......Page 155
 9.4 Form......Page 156
 9.5 New for MIDP 2.0......Page 157
  10.1.1 ItemStateListener......Page 160
 10.2 StringItem......Page 161
  10.2.1 Appearance Modes......Page 162
 10.3 ImageItem......Page 163
 10.4 TextField......Page 164
 10.5 DateField......Page 165
 10.7 Gauge......Page 166
 10.8 CustomItem......Page 167
  10.8.1 Interaction Modes......Page 168
  10.8.2 Traversal......Page 169
 10.9 Form Layout......Page 170
  10.9.1 Row Breaks......Page 171
  10.9.3 Current Alignment......Page 172
  10.9.4 Item Sizing......Page 173
  10.9.5 Row Filling......Page 174
 10.10 New for MIDP 2.0......Page 176
 11.1 The Canvas API......Page 180
  11.1.2 Redrawing Mechanism......Page 181
  11.1.4 Canvas Visibility......Page 182
  11.2.2 Action Keys......Page 183
  11.3.1 Coordinate System......Page 184
  11.3.3 Translation......Page 185
  11.3.5 Line Styles......Page 186
  11.4.1 Immutable Images......Page 187
  11.4.3 Transparency and Alpha Blending......Page 188
  11.4.4 Getting RGB Data......Page 189
  11.4.5 Anchor Points......Page 190
  11.5.1 Drawing Lines......Page 191
  11.5.2 Drawing and Filling Arcs......Page 192
  11.5.3 Drawing and Filling Rectangles......Page 193
  11.5.4 Drawing and Filling Rounded Rectangles......Page 195
  11.5.5 Filling Triangles......Page 196
  11.5.7 Drawing Images......Page 197
  11.5.8 Drawing RGB Data......Page 199
  11.5.9 Copying an Area of Pixels......Page 200
 11.6 New for MIDP 2.0......Page 201
 12.1 The GameCanvas API......Page 204
  12.1.1 Key Polling......Page 205
 12.2 Layers......Page 206
  12.3.1 Frames......Page 207
  12.3.2 Frame Sequence......Page 209
  12.3.3 Reference Pixel......Page 210
  12.4.1 Tiles......Page 211
  12.4.2 Cells......Page 213
 12.5 LayerManager......Page 215
  12.6.1 Collision Rectangle......Page 217
  12.6.2 Pixel-Level Detection......Page 218
 12.7 Sample Code: A Simple Game......Page 219
 12.8 New for MIDP 2.0......Page 226
  13.1.1 MIDP Media Support......Page 228
  13.1.2 Design Goals......Page 229
  13.1.3 Requirements......Page 230
  13.1.4 MIDP Sound Architecture......Page 231
  13.2.1 Managing a Media Framework......Page 233
  13.2.2 Creating Players for Media Data......Page 234
  13.2.3 Tone Generation......Page 237
  13.2.4 Sample Code......Page 238
  13.3.1 ToneControl......Page 239
  13.3.4 Sample Code......Page 242
 13.4 Enhanced Media Support Using the Mobile Media API......Page 248
  13.4.2 Advanced Controls......Page 249
 13.5 New for MIDP 2.0......Page 250
 14.1 The Record Management System......Page 252
  14.2.1 Manipulating a Record Store......Page 254
  14.2.2 Shared Record Stores......Page 256
  14.2.4 Converting Record Data to and from Byte Arrays......Page 257
  14.2.5 Filtering, Comparing, Listening, and Enumerating Records......Page 258
 14.3 Sample Code (RMSMIDlet.java)......Page 262
 14.4 New for MIDP 2.0......Page 272
 15.1 Characteristics of Wireless Data Networks......Page 274
 15.2 Network Interface Considerations......Page 275
  15.3.1 States of an HTTP Connection......Page 276
  15.3.3 Establishing a Connection......Page 277
  15.3.4 Parsing URLs......Page 278
  15.3.5 HTTP Request Headers......Page 279
  15.3.6 Using an HTTP Connection......Page 281
  15.3.7 HTTP Response Headers......Page 283
 15.4 Sample Code (NetClientMIDlet.java)......Page 284
  15.5.1 Getting the Local Address and Port Number......Page 295
  15.5.3 Getting and Setting Socket Options......Page 296
  15.5.6 Example......Page 297
  15.6.1 Getting the Local Address and Port Number......Page 298
  15.6.3 Example......Page 299
  15.7.1 Getting the Local Address and Port Number......Page 300
  15.7.3 Closing Connections......Page 301
  15.7.5 Example......Page 302
 15.8 CommConnection......Page 303
  15.8.1 Getting and Setting the Serial Port Speed......Page 304
  15.8.4 Examples......Page 305
 15.9 New for MIDP 2.0......Page 307
16 Secure Networking......Page 308
 16.1 Checking the Security Properties of a Connection......Page 309
  16.1.1 Server Certificate......Page 310
  16.1.2 Printable Representation for X.509 Distinguished Names......Page 311
  16.2.1 Security of HttpsConnection......Page 312
  16.2.2 Example......Page 313
 16.3 SecureConnection......Page 314
  16.3.2 Example......Page 315
 16.4 MIDP X.509 Certificate Profile......Page 316
  16.4.4 Certificate Processing for HTTPS......Page 317
 16.5 New for MIDP 2.0......Page 318
 17.1 Alarm-Based MIDlet Launch......Page 320
  17.2.1 Registering a MIDlet to Be Launched......Page 322
  17.2.2 Mechanics of Static Push Registration......Page 323
  17.2.3 Mechanics of Dynamic Push Registration......Page 325
 17.3 Listening and Launching......Page 326
 17.4 Handling Connections after Launch......Page 327
 17.5 Security of the Push Registry......Page 328
  17.6.1 Sample Chat Application......Page 329
  17.6.2 Sample Ping Application......Page 331
 17.7 New for MIDP 2.0......Page 334
18 Security for MIDlet Suites......Page 336
 18.1 Assumptions......Page 337
 18.2 Sandbox for Untrusted MIDlet Suites......Page 338
  18.3.1 Permissions......Page 339
  18.3.2 Requesting Permissions for a MIDlet Suite......Page 341
  18.3.4 Interaction Modes for User Permissions......Page 342
  18.3.5 Granting Permissions to Trusted MIDlet Suites......Page 343
 18.5 Establishing Trust for MIDlet Suites by Using X.509 PKI......Page 344
  18.5.1 Signing a MIDlet Suite......Page 345
  18.5.2 Authenticating a MIDlet Suite......Page 348
  18.5.4 X.509 Certificate Profile for Trusted MIDlet Suites......Page 351
 18.7 New for MIDP 2.0......Page 352
 19.1 MIDlet Suites......Page 354
  19.1.2 Application Descriptor......Page 355
  19.1.3 MIDlet Attributes......Page 356
  19.1.4 MIDlet Suite Execution Environment......Page 361
 19.3 Over-the-Air User-Initiated Provisioning......Page 363
  19.3.2 MIDlet Suite Removal......Page 365
  19.3.3 Installation and Deletion Status Reports......Page 366
  19.3.4 Installation Status Codes and Messages......Page 367
 19.4 New for MIDP 2.0......Page 368
 20.1 Timer Support......Page 370
  20.1.1 Using One-Shot Timers......Page 371
  20.1.2 Using Repeating Timers......Page 372
  20.1.3 Sample Code (TimerMIDlet.java)......Page 373
 20.2 System Properties......Page 377
 20.4 Exiting a MIDlet......Page 378
21 Summary......Page 380
References......Page 384
Appendix A: CLDC Application Programming Interface......Page 386
 Almanac Legend......Page 387
 CLDC Almanac......Page 390
Appendix B: MIDP Application Programming Interface......Page 422
 MIDP Almanac......Page 424
 C......Page 456
 E......Page 458
 H......Page 459
 J......Page 460
 M......Page 461
 P......Page 462
 R......Page 463
 S......Page 464
 X......Page 465