1page.title=Platforms 2@jd:body 3 4<div id="qv-wrapper"> 5<div id="qv"> 6 7 8<h2>See Also</h2> 9<ol> 10 <li><a href="{@docRoot}about/versions/jelly-bean.html">Jelly Bean 11Highlights and APIs</a></li> 12 <li><a href="{@docRoot}about/versions/android-4.0-highlights.html">Ice Cream Sandwich 13Highlights and APIs</a></li> 14 <li><a href="{@docRoot}about/versions/android-3.0-highlights.html">Honeycomb 15Highlights and APIs</a></li> 16 <li><a href="{@docRoot}about/versions/android-2.3-highlights.html">Gingerbread 17Highlights and APIs</a></li> 18</ol> 19 20</div> 21</div> 22 23 24 25<p>This document provides information about Android platform releases. In order to compile your 26application against a particular platform release, you must download and install the SDK Platform 27for that release. If you want to test your application on an emulator, you must also download at 28least one system image for that platform release.</p> 29 30<p>Each platform release includes system images that support a specific processor architecture, 31such as ARM EABI, Intel x86 or MIPS. Platform releases also include a system image that contains 32Google APIs. The <a href="{@docRoot}tools/help/sdk-manager.html">SDK Manager</a> lists available 33platform system images under each platform version header, for example:</p> 34 35<ul> 36 <li>ARM EABI v7a System Image</li> 37 <li>Intel x86 Atom System Image</li> 38 <li>MIPS System Image</li> 39 <li>Google APIs</li> 40</ul> 41 42<p>To determine what revisions of an Android platform you have installed, refer to the 43<em>Packages</em> listing in the Android 44<a href="{@docRoot}tools/help/sdk-manager.html">SDK Manager</a>.</p> 45 46<p class="caution"><strong>Important:</strong> To download the most recent Android 47system components from the Android SDK Manager, you must first update the SDK Tools to the 48most recent release and restart the SDK Manager. If you do not, the latest Android system 49components will not be available for download.</p> 50 51 52 53<h2 id="4.4">Android 4.4</h2> 54 55 56<div class="toggle-content opened"> 57 58 <p><a href="#" onclick="return toggleContent(this)"> 59 <img src="{@docRoot}assets/images/triangle-opened.png" 60class="toggle-content-img" alt="" />Revision 1</a> <em>(October 2013)</em> 61 </p> 62 63 <div class="toggle-content-toggleme"> 64 65 <p>Initial release. The system version is 4.4.</p> 66 <dl> 67 <dt>Dependencies:</dt> 68 <dd>Android SDK Platform-tools r19 or higher is required.</dd> 69 <dd>Android SDK Tools 22.3 or higher is recommended.</dd> 70 </dl> 71 72 </div> 73</div> 74 75<h3 id="gsi-4.4">Google APIs System Image</h3> 76 77<div class="toggle-content opened"> 78 <p><a href="#" onclick="return toggleContent(this)"> 79 <img src="{@docRoot}assets/images/triangle-opened.png" 80class="toggle-content-img" alt="" />Revision 1</a> <em>(October 2013)</em> 81 </p> 82 83 <div class="toggle-content-toggleme"> 84 85 <p>Initial release. This release includes 86 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 4.0.30, 87 allowing you to test your application in an emulator using the latest Google Play services.</p> 88 89 </div> 90</div> 91 92 93 94<h2 id="4.3">Android 4.3</h2> 95 96 97<div class="toggle-content closed"> 98 99 <p><a href="#" onclick="return toggleContent(this)"> 100 <img src="{@docRoot}assets/images/triangle-closed.png" 101class="toggle-content-img" alt="" />Revision 2</a> <em>(August 2013)</em> 102 </p> 103 104 <div class="toggle-content-toggleme"> 105 106 <p>Maintenance update. The system version is 4.3.</p> 107 <dl> 108 <dt>Dependencies:</dt> 109 <dd>Android SDK Platform-tools r18 or higher is required.</dd> 110 <dd>Android SDK Tools 22.0.4 or higher is recommended.</dd> 111 </dl> 112 113 </div> 114</div> 115 116<div class="toggle-content closed"> 117 118 <p><a href="#" onclick="return toggleContent(this)"> 119 <img src="{@docRoot}assets/images/triangle-closed.png" 120class="toggle-content-img" alt="" />Revision 1</a> <em>(July 2013)</em> 121 </p> 122 123 <div class="toggle-content-toggleme"> 124 125 <p>Initial release. The system version is 4.3.</p> 126 <dl> 127 <dt>Dependencies:</dt> 128 <dd>Android SDK Platform-tools r18 or higher is required.</dd> 129 <dd>Android SDK Tools 22.0.4 or higher is recommended.</dd> 130 </dl> 131 132 </div> 133</div> 134 135<h3 id="gsi-4.3">Google APIs System Image</h3> 136 137<div class="toggle-content closed"> 138 <p><a href="#" onclick="return toggleContent(this)"> 139 <img src="{@docRoot}assets/images/triangle-closed.png" 140class="toggle-content-img" alt="" />Revision 3</a> <em>(September 2013)</em> 141 </p> 142 143 <div class="toggle-content-toggleme"> 144 145 <p>Maintenance update. This release includes 146 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 3.2.65, 147 allowing you to test your application in an emulator using the latest Google Play services.</p> 148 149 </div> 150</div> 151 152<div class="toggle-content closed"> 153 <p><a href="#" onclick="return toggleContent(this)"> 154 <img src="{@docRoot}assets/images/triangle-closed.png" 155class="toggle-content-img" alt="" />Revision 2</a> <em>(August 2013)</em> 156 </p> 157 158 <div class="toggle-content-toggleme"> 159 160 <p>Maintenance update. This release includes 161 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 3.2.25, 162 allowing you to test your application in an emulator using the latest Google Play services.</p> 163 164 </div> 165</div> 166 167<div class="toggle-content closed"> 168 <p><a href="#" onclick="return toggleContent(this)"> 169 <img src="{@docRoot}assets/images/triangle-closed.png" 170class="toggle-content-img" alt="" />Revision 1</a> <em>(July 2013)</em> 171 </p> 172 173 <div class="toggle-content-toggleme"> 174 175 <p>Initial release. This release includes 176 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 3.1.58.</p> 177 178 </div> 179</div> 180 181 182 183 184<h2 id="4.2">Android 4.2</h2> 185 186 187<div class="toggle-content closed"> 188 189 <p><a href="#" onclick="return toggleContent(this)"> 190 <img src="{@docRoot}assets/images/triangle-closed.png" 191class="toggle-content-img" alt="" />Revision 2</a> <em>(February 2013)</em> 192 </p> 193 194 <div class="toggle-content-toggleme"> 195 196 <p>Maintenance update. The system version is 4.2.2.</p> 197 <dl> 198 <dt>Dependencies:</dt> 199 <dd>SDK Tools r21 or higher is required.</dd> 200 </dl> 201 202 </div> 203</div> 204 205<div class="toggle-content closed"> 206 207 <p><a href="#" onclick="return toggleContent(this)"> 208 <img src="{@docRoot}assets/images/triangle-closed.png" 209class="toggle-content-img" alt="" />Revision 1</a> <em>(November 2012)</em> 210 </p> 211 212 <div class="toggle-content-toggleme"> 213 214 <p>Initial release. The system version is 4.2.</p> 215 <dl> 216 <dt>Dependencies:</dt> 217 <dd>SDK Tools r20 or higher is required.</dd> 218 </dl> 219 220 </div> 221</div> 222 223<h3>Device Definitions</h3> 224 225<p>The platform includes the following device definitions for use in creating Android Virtual 226Devices in the <a href="{@docRoot}tools/help/avd-manager.html">AVD Manager</a>:</p> 227 228<ul> 229 <li> 230 Nexus 7 (7.3", 800 x 1280, Large tvdpi screen) 231 </li> 232 <li> 233 Galaxy Nexus (4.7", 720 x 1280, Normal xhdpi screen) 234 </li> 235 <li> 236 Nexus S (4.0", 480 x 800, Normal hdpi screen) 237 </li> 238 <li> 239 Nexus One (3.7", 480 x 720, Normal hdpi screen) 240 </li> 241 <li> 242 10.1" WXGA Tablet (1280 x 800, X-Large mdpi screen) 243 </li> 244 <li> 245 7.0" WSVGA Tablet (1024 x 600, Large mdpi screen) 246 </li> 247 <li> 248 5.4" FWVGA (480 x 854, Large mdpi screen) 249 </li> 250 <li> 251 5.1" WVGA (480 x 800, Large mdpi screen) 252 </li> 253 <li> 254 4.7" WXGA (1280 x 720, Normal xhdpi screen) 255 </li> 256 <li> 257 4.65" 720p (720 x 1280, Normal xhdpi screen) 258 </li> 259 <li> 260 4.0" WVGA (480 x 800, Normal hdpi screen) 261 </li> 262 <li> 263 3.7" WVGA (480 x 800, Normal hdpi screen) 264 </li> 265 <li> 266 3.7" FWVGA slider (480 x 854, Normal hdpi screen) 267 </li> 268 <li> 269 3.4" WQVGA (240 x 432, Normal ldpi screen) 270 </li> 271 <li> 272 3.3" WQVGA (240 x 400, Normal ldpi screen) 273 </li> 274 <li> 275 3.2" QVGA ADP2 (320 x 480, Normal mdpi screen) 276 </li> 277 <li> 278 3.2" HVGA slider ADP1 (320 x 480, Normal mdpi screen) 279 </li> 280 <li> 281 2.7" QVGA slider (240 x 320, Small ldpi screen) 282 </li> 283 <li> 284 2.7" QVGA (240 x 320, Small ldpi screen) 285 </li> 286</ul> 287 288 289 290<h2 id="4.1">Android 4.1</h2> 291 292 293<div class="toggle-content closed"> 294 295 <p><a href="#" onclick="return toggleContent(this)"> 296 <img src="{@docRoot}assets/images/triangle-closed.png" 297class="toggle-content-img" alt="" />Revision 3</a> <em>(October 2012)</em> 298 </p> 299 300 <div class="toggle-content-toggleme"> 301 302 <p>Maintenance update. The system version is 4.1.2.</p> 303 <dl> 304 <dt>Dependencies:</dt> 305 <dd>SDK Tools r20 or higher is required.</dd> 306 </dl> 307 308 </div> 309</div> 310 311<div class="toggle-content closed"> 312 313 <p><a href="#" onclick="return toggleContent(this)"> 314 <img src="{@docRoot}assets/images/triangle-closed.png" 315class="toggle-content-img" alt="" />Revision 2</a> <em>(July 2012)</em> 316 </p> 317 318 <div class="toggle-content-toggleme"> 319 320 <p>Maintenance update. The system version is 4.1.1.</p> 321 <dl> 322 <dt>Dependencies:</dt> 323 <dd>SDK Tools r20 or higher is required.</dd> 324 </dl> 325 326 </div> 327</div> 328 329<div class="toggle-content closed" > 330 331 <p><a href="#" onclick="return toggleContent(this)"> 332 <img src="{@docRoot}assets/images/triangle-closed.png" 333class="toggle-content-img" alt="" />Revision 1</a> <em>(June 2012)</em> 334 </p> 335 336 <div class="toggle-content-toggleme"> 337 338 <p>Initial release. The system version is 4.1.0.</p> 339 <dl> 340 <dt>Dependencies:</dt> 341 <dd>SDK Tools r20 or higher is required.</dd> 342 </dl> 343 344 </div> 345</div> 346 347<h3>Emulator Skins</h3> 348 349<p>The downloadable platform includes the following emulator skins:</p> 350 351<ul> 352 <li> 353 QVGA (240x320, low density, small screen) 354 </li> 355 <li> 356 WQVGA400 (240x400, low density, normal screen) 357 </li> 358 <li> 359 WQVGA432 (240x432, low density, normal screen) 360 </li> 361 <li> 362 HVGA (320x480, medium density, normal screen) 363 </li> 364 <li> 365 WVGA800 (480x800, high density, normal screen) 366 </li> 367 <li> 368 WVGA854 (480x854 high density, normal screen) 369 </li> 370 <li> 371 WXGA720 (1280x720, extra-high density, normal screen) 372 </li> 373 <li> 374 WSVGA (1024x600, medium density, large screen) 375 </li> 376 <li> 377 WXGA800-7in (1280x800, high density, large screen) <span class="new">new</span> 378 </li> 379 <li> 380 WXGA800 (1280x800, medium density, xlarge screen) 381 </li> 382</ul> 383 384<p>To test your application on an emulator that represents the <a 385href="http://play.google.com/nexus7">Nexus 7</a> tablet device, you can create an AVD with 386the new WXGA800-7in skin. For best performance, make sure to enable <a 387href="{@docRoot}tools/devices/emulator.html#accel-graphics">graphics acceleration</a> in the 388emulator configuration.</p> 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403<h2 id="4.0.3">Android 4.0.3</h2> 404 405 406<div class="toggle-content closed"> 407 408 <p><a href="#" onclick="return toggleContent(this)"> 409 <img src="{@docRoot}assets/images/triangle-closed.png" 410class="toggle-content-img" alt="" />Revision 3</a> <em>(March 2012)</em> 411 </p> 412 413 <div class="toggle-content-toggleme"> 414 415 <p>Maintenance update. The system version is 4.0.4.</p> 416 <p class="note"><strong>Note:</strong> This system image includes support for emulator 417hardware graphics acceleration when used with SDK Tools r17 or higher. 418(<a href="{@docRoot}tools/devices/emulator.html#accel-graphics">more info</a>)</p> 419 <dl> 420 <dt>Dependencies:</dt> 421 <dd>SDK Tools r17 or higher is required.</dd> 422 </dl> 423 424 </div> 425</div> 426 427<div class="toggle-content closed" > 428 429 <p><a href="#" onclick="return toggleContent(this)"> 430 <img src="{@docRoot}assets/images/triangle-closed.png" 431class="toggle-content-img" alt="" />Revision 2</a> <em>(January 2012)</em> 432 </p> 433 434 <div class="toggle-content-toggleme"> 435 436 <p>Maintenance update. The system version is 4.0.3.</p> 437 <dl> 438 <dt>Dependencies:</dt> 439 <dd>SDK Tools r14 or higher is required.</dd> 440 </dl> 441 442 </div> 443</div> 444 445<div class="toggle-content closed" > 446 447 <p><a href="#" onclick="return toggleContent(this)"> 448 <img src="{@docRoot}assets/images/triangle-closed.png" 449class="toggle-content-img" alt="" />Revision 1</a> <em>(December 2011)</em> 450 </p> 451 452 <div class="toggle-content-toggleme"> 453 454 <p>Initial release. The system version is 4.0.3.</p> 455 <dl> 456 <dt>Dependencies:</dt> 457 <dd>SDK Tools r14 or higher is required.</dd> 458 </dl> 459 460 </div> 461</div> 462 463<h3>Emulator Skins</h3> 464 465<p>The downloadable platform includes the following emulator skins:</p> 466 467<ul> 468 <li> 469 QVGA (240x320, low density, small screen) 470 </li> 471 <li> 472 WQVGA400 (240x400, low density, normal screen) 473 </li> 474 <li> 475 WQVGA432 (240x432, low density, normal screen) 476 </li> 477 <li> 478 HVGA (320x480, medium density, normal screen) 479 </li> 480 <li> 481 WVGA800 (480x800, high density, normal screen) 482 </li> 483 <li> 484 WVGA854 (480x854 high density, normal screen) 485 </li> 486 <li> 487 WXGA720 (1280x720, extra-high density, normal screen) 488 </li> 489 <li> 490 WSVGA (1024x600, medium density, large screen) 491 </li> 492 <li> 493 WXGA (1280x800, medium density, xlarge screen) 494 </li> 495</ul> 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512<h2 id="4.0">Android 4.0</h2> 513 514 515<div class="toggle-content closed"> 516 517 <p><a href="#" onclick="return toggleContent(this)"> 518 <img src="{@docRoot}assets/images/triangle-closed.png" 519class="toggle-content-img" alt="" />Android 4.0, Revision 2</a> <em>(December 2011)</em> 520 </p> 521 522 <div class="toggle-content-toggleme"> 523 <p>Maintenance update. The system version is 4.0.2.</p> 524 <dl> 525 <dt>Dependencies:</dt> 526 <dd>SDK Tools r14 or higher is required.</dd> 527 </dl> 528 </div> 529</div> 530 531<div class="toggle-content closed"> 532 533 <p><a href="#" onclick="return toggleContent(this)"> 534 <img src="{@docRoot}assets/images/triangle-closed.png" 535class="toggle-content-img" alt="" />Android 4.0, Revision 1</a> <em>(October 2011)</em> 536 </p> 537 538 <div class="toggle-content-toggleme"> 539 <p>Initial release. The system version is 4.0.1.</p> 540 <dl> 541 <dt>Dependencies:</dt> 542 <dd>SDK Tools r14 or higher is required.</dd> 543 </dl> 544 </div> 545</div> 546 547 548<h3>Emulator Skins</h3> 549 550<p>The downloadable platform includes the following emulator skins:</p> 551 552<ul> 553 <li> 554 QVGA (240x320, low density, small screen) 555 </li> 556 <li> 557 WQVGA400 (240x400, low density, normal screen) 558 </li> 559 <li> 560 WQVGA432 (240x432, low density, normal screen) 561 </li> 562 <li> 563 HVGA (320x480, medium density, normal screen) 564 </li> 565 <li> 566 WVGA800 (480x800, high density, normal screen) 567 </li> 568 <li> 569 WVGA854 (480x854 high density, normal screen) 570 </li> 571 <li> 572 WXGA720 (1280x720, extra-high density, normal screen) <span class="new">new</span> 573 </li> 574 <li> 575 WSVGA (1024x600, medium density, large screen) <span class="new">new</span> 576 </li> 577 <li> 578 WXGA (1280x800, medium density, xlarge screen) 579 </li> 580</ul> 581 582<p>To test your application on an emulator that represents the latest Android device, you can create 583an AVD with the new WXGA720 skin (it's an xhdpi, normal screen device). Note that the emulator 584currently doesn't support the new on-screen navigation bar for devices without hardware navigation 585buttons, so when using this skin, you must use keyboard keys <em>Home</em> for the Home button, 586<em>ESC</em> for the Back button, and <em>F2</em> or <em>Page-up</em> for the Menu button.</p> 587 588<p>However, due to performance issues in the emulator when running high-resolution screens such as 589the one for the WXGA720 skin, we recommend that you primarily use the traditional WVGA800 skin 590(hdpi, normal screen) to test your application.</p> 591 592 593 594 595 596 597 598 599 600 601 602 603 604<h2 id="3.2">Android 3.2</h2> 605 606 607 608<div class="toggle-content closed"> 609 610 <p><a href="#" onclick="return toggleContent(this)"> 611 <img src="{@docRoot}assets/images/triangle-closed.png" 612class="toggle-content-img" alt="" />Android 3.2, Revision 1</a> <em>(July 2011)</em> 613 </p> 614 615 <div class="toggle-content-toggleme"> 616 617<dl> 618<dt>Initial release. SDK Tools r12 or higher is recommended.</dt> 619</dl> 620 621 </div> 622</div> 623 624 625 626 627<h3>Emulator Skins</h3> 628 629<p>The downloadable platform includes the following emulator skin:</p> 630 631<ul> 632 <li> 633 WXGA (1280x800, medium density, xlarge screen) 634 </li> 635</ul> 636 637<p>For more information about how to develop an application that displays 638and functions properly on all Android-powered devices, see <a 639href="{@docRoot}guide/practices/screens_support.html">Supporting Multiple 640Screens</a>.</p> 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659<h2 id="3.1">Android 3.1</h2> 660 661 662<div class="toggle-content closed"> 663 664<p><a href="#" onclick="return toggleContent(this)"> 665 <img src="{@docRoot}assets/images/triangle-closed.png" 666class="toggle-content-img" alt="" />Android 3.1, Revision 3</a> <em>(July 2011)</em> 667</p> 668 669<div class="toggle-content-toggleme"> 670 671<dl> 672<dt>Dependencies:</dt> 673<dd> 674<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r12</a> or 675higher.</p> 676</dd> 677<dt>Notes:</dt> 678<dd> 679<p>Improvements to the platform's rendering library to support the visual layout editor in the ADT 680Eclipse plugin. This revision allows for more drawing features in ADT and fixes several 681bugs in the previous rendering library. It also unlocks several editor features that were added in 682ADT 12.</p> 683</dd> 684</dl> 685 686</div> 687</div> 688 689 690<div class="toggle-content closed" > 691 692<p><a href="#" onclick="return toggleContent(this)"> 693 <img src="{@docRoot}assets/images/triangle-closed.png" 694class="toggle-content-img" alt="" />Android 3.1, Revision 2</a> <em>(May 2011)</em> 695</p> 696 697<div class="toggle-content-toggleme"> 698 699<dl> 700<dt>Dependencies:</dt> 701<dd> 702<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r11</a> or 703higher.</p> 704</dd> 705<dt>Notes:</dt> 706<dd> 707<p>Fixes an issue with the visual layout editor rendering library that prevented Android 3.1 from 708running in ADT.</p> 709</dd> 710</dl> 711 712</div> 713</div> 714 715 716<div class="toggle-content closed"> 717 718<p><a href="#" onclick="return toggleContent(this)"> 719 <img src="{@docRoot}assets/images/triangle-closed.png" 720class="toggle-content-img" alt="" />Android 3.1, Revision 1</a> <em>(May 2011)</em> 721</p> 722 723<div class="toggle-content-toggleme"> 724 725<dl> 726<dt>Dependencies:</dt> 727<dd> 728<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r11</a> or 729higher.</p> 730</dd> 731</dl> 732 733</div> 734</div> 735 736 737<h3>Emulator Skins</h3> 738 739<p>The downloadable platform includes the following emulator skin:</p> 740 741<ul> 742 <li> 743 WXGA (1280x800, medium density, xlarge screen) 744 </li> 745</ul> 746 747<p>For more information about how to develop an application that displays 748and functions properly on all Android-powered devices, see <a 749href="{@docRoot}guide/practices/screens_support.html">Supporting Multiple 750Screens</a>.</p> 751 752 753 754 755 756 757 758 759 760 761 762<h2 id="3.0">Android 3.0</h2> 763 764 765<div class="toggle-content closed" > 766 767<p><a href="#" onclick="return toggleContent(this)"> 768 <img src="{@docRoot}assets/images/triangle-closed.png" 769class="toggle-content-img" alt="" />Android 3.0, Revision 2</a> <em>(July 2011)</em> 770</p> 771 772<div class="toggle-content-toggleme"> 773 774<dl> 775<dt>Dependencies:</dt> 776<dd> 777<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r12</a> or 778higher.</p> 779</dd> 780<dt>Notes:</dt> 781<dd> 782<p>Improvements to the platform's rendering library to support the visual layout editor in the ADT 783Eclipse plugin. This revision allows for more drawing features in ADT and fixes several 784bugs in the previous rendering library. It also unlocks several editor features that were added in 785ADT 12.</p> 786</dd> 787</dl> 788 789</div> 790</div> 791 792<div class="toggle-content closed"> 793 794<p><a href="#" onclick="return toggleContent(this)"> 795 <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" 796 alt="" />Android 3.0, Revision 1</a> <em>(February 2011)</em> 797</p> 798 799<div class="toggle-content-toggleme"> 800 801<dl> 802<dt>Dependencies:</dt> 803<dd> 804<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r10</a> or higher.</p> 805</dd> 806</dl> 807 808</div> 809</div> 810 811 812 813<h3>Emulator Skins</h3> 814 815<p>The downloadable platform includes the following emulator skin:</p> 816 817<ul> 818 <li> 819 WXGA (1280x800, medium density, xlarge screen) 820 </li> 821</ul> 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840<h2 id="2.3.4">Android 2.3.4</h2> 841 842 843<div class="toggle-content closed" > 844 845<p><a href="#" onclick="return toggleContent(this)"> 846 <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" 847 alt="" />Android 2.3.4, Revision 1</a> <em>(May 2011)</em> 848</p> 849 850 <div class="toggle-content-toggleme"> 851 <dl> 852 <dt>Dependencies:</dt> 853 <dd> 854 <p>Requires SDK Tools r11 or higher.</p> 855 </dd> 856 </dl> 857 </div> 858</div> 859 860 861<h3>Emulator Skins</h3> 862 863<p>The downloadable platform includes a set of emulator skins that you can use 864for modeling your application in different screen sizes and resolutions. The 865emulator skins are:</p> 866 867<ul> 868 <li> 869 QVGA (240x320, low density, small screen) 870 </li> 871 <li> 872 WQVGA400 (240x400, low density, normal screen) 873 </li> 874 <li> 875 WQVGA432 (240x432, low density, normal screen) 876 </li> 877 <li> 878 HVGA (320x480, medium density, normal screen) 879 </li> 880 <li> 881 WVGA800 (480x800, high density, normal screen) 882 </li> 883 <li> 884 WVGA854 (480x854 high density, normal screen) 885 </li> 886</ul> 887 888 889 890 891 892 893 894 895 896 897 898 899 900<h2 id="2.3.3">Android 2.3.3</h2> 901 902 903<div class="toggle-content closed" > 904 905<p><a href="#" onclick="return toggleContent(this)"> 906 <img src="{@docRoot}assets/images/triangle-closed.png" 907class="toggle-content-img" alt="" />Android 2.3.3, Revision 2</a> <em>(July 2011)</em> 908</p> 909 910<div class="toggle-content-toggleme"> 911 912<dl> 913<dt>Dependencies:</dt> 914<dd> 915<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r12</a> or 916higher.</p> 917</dd> 918<dt>Notes:</dt> 919<dd> 920<p>Improvements to the platform's rendering library to support the visual layout editor in the ADT 921Eclipse plugin. This revision allows for more drawing features in ADT and fixes several 922bugs in the previous rendering library. It also unlocks several editor features that were added in 923ADT 12.</p> 924</dd> 925</dl> 926 927</div> 928</div> 929 930<div class="toggle-content closed" > 931 932<p><a href="#" onclick="return toggleContent(this)"> 933 <img src="{@docRoot}assets/images/triangle-closed.png" 934class="toggle-content-img" alt="" />Android 2.3.3, Revision 1</a> <em>(February 2011)</em> 935</p> 936 937<div class="toggle-content-toggleme"> 938<dl> 939<dt>Dependencies:</dt> 940<dd> 941<p>Requires SDK Tools r9 or higher.</p> 942</dd> 943</dl> 944 945</div> 946</div> 947 948 949<h3>Emulator Skins</h3> 950 951<p>The downloadable platform includes a set of emulator skins that you can use 952for modeling your application in different screen sizes and resolutions. The 953emulator skins are:</p> 954 955<ul> 956 <li> 957 QVGA (240x320, low density, small screen) 958 </li> 959 <li> 960 WQVGA400 (240x400, low density, normal screen) 961 </li> 962 <li> 963 WQVGA432 (240x432, low density, normal screen) 964 </li> 965 <li> 966 HVGA (320x480, medium density, normal screen) 967 </li> 968 <li> 969 WVGA800 (480x800, high density, normal screen) 970 </li> 971 <li> 972 WVGA854 (480x854 high density, normal screen) 973 </li> 974</ul> 975 976 977 978 979 980 981 982 983 984 985 986 987<h2 id="2.3">Android 2.3</h2> 988 989 990<div class="toggle-content closed" > 991 992<p><a href="#" onclick="return toggleContent(this)"> 993 <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" 994 alt="" />Android 2.3, Revision 1</a> <em>(December 2010)</em> 995</p> 996 997 <div class="toggle-content-toggleme"> 998 <dl> 999 <dt>Dependencies:</dt> 1000 <dd> 1001 <p>Requires SDK Tools r8 or higher.</p> 1002 </dd> 1003 </dl> 1004 </div> 1005</div> 1006 1007 1008<h3>Emulator Skins</h3> 1009 1010<p>The downloadable platform includes a set of emulator skins that you can use 1011for modeling your application in different screen sizes and resolutions. The 1012emulator skins are:</p> 1013 1014<ul> 1015 <li> 1016 QVGA (240x320, low density, small screen) 1017 </li> 1018 <li> 1019 WQVGA400 (240x400, low density, normal screen) 1020 </li> 1021 <li> 1022 WQVGA432 (240x432, low density, normal screen) 1023 </li> 1024 <li> 1025 HVGA (320x480, medium density, normal screen) 1026 </li> 1027 <li> 1028 WVGA800 (480x800, high density, normal screen) 1029 </li> 1030 <li> 1031 WVGA854 (480x854 high density, normal screen) 1032 </li> 1033</ul> 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043<h2 id="2.2">Android 2.2</h2> 1044 1045 1046<div class="toggle-content closed" > 1047 1048<p><a href="#" onclick="return toggleContent(this)"> 1049 <img src="{@docRoot}assets/images/triangle-closed.png" 1050class="toggle-content-img" alt="" />Android {@sdkPlatformVersion}, Revision 3</a> <em>(July 2011)</em> 1051</p> 1052 1053<div class="toggle-content-toggleme"> 1054 1055<dl> 1056<dt>Dependencies:</dt> 1057<dd> 1058<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r12</a> or 1059higher.</p> 1060</dd> 1061<dt>Notes:</dt> 1062<dd> 1063<p>Improvements to the platform's rendering library to support the visual layout editor in the ADT 1064Eclipse plugin. This revision allows for more drawing features in ADT and fixes several 1065bugs in the previous rendering library. It also unlocks several editor features that were added in 1066ADT 12.</p> 1067</dd> 1068</dl> 1069 1070</div> 1071</div> 1072 1073<div class="toggle-content closed" > 1074 1075<p><a href="#" onclick="return toggleContent(this)"> 1076 <img src="{@docRoot}assets/images/triangle-closed.png" 1077class="toggle-content-img" alt="" />Android {@sdkPlatformVersion}, Revision 2</a> <em>(July 2010)</em> 1078</p> 1079 1080<div class="toggle-content-toggleme"> 1081<dt>Dependencies:</dt> 1082<dd> 1083<p>Requires SDK Tools r6 or higher.</p> 1084</dd> 1085 1086<dt>System Image:</dt> 1087<dd> 1088<ul> 1089<li>Adds default Search Widget.</li> 1090<li>Includes proper provisioning for the platform's Backup Manager. For more information about how 1091to use the Backup Manager, see <a href="{@docRoot}guide/topics/data/backup.html">Data 1092Backup</a>.</li> 1093<li>Updates the Android 2.2 system image to FRF91.</li> 1094</ul> 1095</dd> 1096 1097</dl> 1098 </div> 1099</div> 1100 1101<div class="toggle-content closed"> 1102 1103<p><a href="#" onclick="return toggleContent(this)"> 1104 <img src="{@docRoot}assets/images/triangle-closed.png" 1105class="toggle-content-img" alt="" />Android {@sdkPlatformVersion}, Revision 1</a> <em>(May 2010)</em></p> 1106 1107<div class="toggle-content-toggleme"> 1108<dl> 1109<dt>Dependencies:</dt> 1110<dd> 1111<p>Requires SDK Tools r6 or higher.</p> 1112</dd> 1113 1114<dt>Tools:</dt> 1115<dd> 1116<p>Adds support for building with Android library projects. See <a href="{@docRoot}tools/sdk/tools-notes.html">SDK 1117Tools, r6</a> for information.</p> 1118</dd> 1119 1120</dl> 1121 </div> 1122</div> 1123 1124 1125<h3>Emulator Skins</h3> 1126 1127<p>The downloadable platform includes a set of emulator skins that you can use 1128for modeling your application in different screen sizes and resolutions. The 1129emulator skins are:</p> 1130 1131<ul> 1132 <li> 1133 QVGA (240x320, low density, small screen) 1134 </li> 1135 <li> 1136 WQVGA (240x400, low density, normal screen) 1137 </li> 1138 <li> 1139 FWQVGA (240x432, low density, normal screen) 1140 </li> 1141 <li> 1142 HVGA (320x480, medium density, normal screen) 1143 </li> 1144 <li> 1145 WVGA800 (480x800, high density, normal screen) 1146 </li> 1147 <li> 1148 WVGA854 (480x854 high density, normal screen) 1149 </li> 1150</ul> 1151
