1page.title=SDK Platforms Release Notes 2 3@jd:body 4 5<div id="qv-wrapper"> 6<div id="qv"> 7 8 9<h2>See Also</h2> 10<ol> 11 <li><a href="{@docRoot}about/versions/kitkat.html">KitKat 12Highlights and APIs</a></li> 13 <li><a href="{@docRoot}about/versions/jelly-bean.html">Jelly Bean 14Highlights and APIs</a></li> 15 <li><a href="{@docRoot}about/versions/android-4.0-highlights.html">Ice Cream Sandwich 16Highlights and APIs</a></li> 17</ol> 18 19</div> 20</div> 21 22 23 24<p>This document provides release information about the SDK Platform packages required 25for app development. If you want details about the features and APIs added in each Android 26version, instead read the highlights in the <a href="{@docRoot}about/index.html">About</a> 27section.</p> 28 29<p>In order to compile your application against a particular version of Android, you must use the 30<a href="{@docRoot}tools/help/sdk-manager.html">SDK Manager</a> to download and install the SDK 31Platform for that release. If you want to test your application on an emulator, you must also 32download at least one System Image for that Android version.</p> 33 34 35<p>Each platform release includes system images that support a specific processor architecture, 36such as ARM EABI, Intel x86 or MIPS. Platform releases also include a system image that contains 37Google APIs. The <a href="{@docRoot}tools/help/sdk-manager.html">SDK Manager</a> lists available 38platform system images under each platform version header, for example:</p> 39 40<ul> 41 <li>ARM EABI v7a System Image</li> 42 <li>Intel x86 Atom System Image</li> 43 <li>MIPS System Image</li> 44 <li>Google APIs</li> 45</ul> 46 47<p>To determine what revisions of an Android platform you have installed, refer to the 48<em>Packages</em> listing in the Android 49<a href="{@docRoot}tools/help/sdk-manager.html">SDK Manager</a>.</p> 50 51<p class="caution"><strong>Important:</strong> To download the most recent Android 52system components from the Android SDK Manager, you must first update the SDK Tools to the 53most recent release and restart the SDK Manager. If you do not, the latest Android system 54packages may not be available for download.</p> 55 56 57<h2 id="6.0">Android 6.0</h2> 58 59<div class="toggle-content opened"> 60 <p><a href="#" onclick="return toggleContent(this)"> 61 <img src="{@docRoot}assets/images/triangle-opened.png" 62class="toggle-content-img" alt="" />Revision 1</a> <em>(August 2015)</em> 63 </p> 64 65 <div class="toggle-content-toggleme"> 66 67 <p>Initial release for Android 6.0 (API level 23). For more information, see the 68 <a href="{@docRoot}preview/api-overview.html">M Preview API Overview</a>.</p> 69 <p>Dependencies:</p> 70 <ul> 71 <li>Android SDK Platform-tools r23 or higher is required.</li> 72 <li>Android SDK Tools 24.3.4 or higher is required.</li> 73 </ul> 74 </div> 75 76</div> 77 78 79<h2 id="5.1">Android 5.1</h2> 80 81<div class="toggle-content closed"> 82 <p><a href="#" onclick="return toggleContent(this)"> 83 <img src="{@docRoot}assets/images/triangle-closed.png" 84class="toggle-content-img" alt="" />Revision 1</a> <em>(March 2015)</em> 85 </p> 86 87 <div class="toggle-content-toggleme"> 88 89 <p>Initial release for Android 5.1 (API level 22). For more information, see the 90 <a href="{@docRoot}about/versions/android-5.1.html">Android 5.1 API Overview</a>.</p> 91 <p>Dependencies:</p> 92 <ul> 93 <li>Android SDK Platform-tools r22 or higher is required.</li> 94 <li>Android SDK Tools 23.0.5 or higher is required.</li> 95 </ul> 96 </div> 97 98</div> 99 100 101<h2 id="5.0">Android 5.0</h2> 102 103<div class="toggle-content closed"> 104 <p><a href="#" onclick="return toggleContent(this)"> 105 <img src="{@docRoot}assets/images/triangle-closed.png" 106class="toggle-content-img" alt="" />Revision 2</a> <em>(December 2014)</em> 107 </p> 108 109 <div class="toggle-content-toggleme"> 110 111 <p>Updated layouts in the Support Library and fixed various issues.</p> 112 <p>Dependencies:</p> 113 <ul> 114 <li>Android SDK Platform-tools r21 or higher is required.</li> 115 <li>Android SDK Tools 23.0.5 or higher is required.</li> 116 </ul> 117 </div> 118 119<div class="toggle-content closed"> 120 <p><a href="#" onclick="return toggleContent(this)"> 121 <img src="{@docRoot}assets/images/triangle-closed.png" 122class="toggle-content-img" alt="" />Revision 1</a> <em>(October 2014)</em> 123 </p> 124 125 <div class="toggle-content-toggleme"> 126 127 <p>Initial release for Android 5.0 (API level 21). For more information, see the 128 <a href="{@docRoot}about/versions/android-5.0.html">Android 5.0 API Overview</a>.</p> 129 <p>Dependencies:</p> 130 <ul> 131 <li>Android SDK Platform-tools r21 or higher is required.</li> 132 <li>Android SDK Tools 23.0.5 or higher is required.</li> 133 </ul> 134 </div> 135 136 <h3>Device Definitions</h3> 137 138 <p>The platform includes the following new device definitions for use in creating 139 Android Virtual Devices in the <a href="{@docRoot}tools/help/avd-manager.html">AVD Manager</a>:</p> 140 141 <ul> 142 <li>Nexus 6 (5.96", 1440 x 2560, Normal 560dpi screen) </li> 143 <li>Nexus 9 (8.9", 2048 x 1536, X-Large xhdpi screen) </li> 144 </ul> 145 146</div> 147 148 149<h2 id="4.4">Android 4.4W</h2> 150 151<div class="toggle-content open"> 152 <p><a href="#" onclick="return toggleContent(this)"> 153 <img src="{@docRoot}assets/images/triangle-closed.png" 154class="toggle-content-img" alt="" />Revision 2</a> <em>(October 2014)</em> 155 </p> 156 157 <div class="toggle-content-toggleme"> 158 159 <p>Updated the rendering library.</p> 160 161 <p>Dependencies:</p> 162 <ul> 163 <li>Android SDK Platform-tools r20 or higher is required.</li> 164 <li>Android SDK Tools 23.0 or higher is required.</li> 165 </ul> 166 </div> 167 168<div class="toggle-content closed"> 169 <p><a href="#" onclick="return toggleContent(this)"> 170 <img src="{@docRoot}assets/images/triangle-closed.png" 171class="toggle-content-img" alt="" />Revision 1</a> <em>(June 2014)</em> 172 </p> 173 174 <div class="toggle-content-toggleme"> 175 176 <p>Initial release for Android Wear.</p> 177 <p>Dependencies:</p> 178 <ul> 179 <li>Android SDK Platform-tools r20 or higher is required.</li> 180 <li>Android SDK Tools 23.0 or higher is required.</li> 181 </ul> 182 </div> 183 184 <h3>Device Definitions</h3> 185 186 <p>The platform includes the following device definitions for use in creating Android Virtual 187 Devices in the <a href="{@docRoot}tools/help/avd-manager.html">AVD Manager</a>:</p> 188 189 <ul> 190 <li>Android Wear Round (320 x 320, hdpi)</li> 191 <li>Android Wear Square (320 x 320, hdpi)</li> 192 </ul> 193</div> 194 195<h2 id="4.4">Android 4.4</h2> 196 197<div class="toggle-content closed"> 198 <p><a href="#" onclick="return toggleContent(this)"> 199 <img src="{@docRoot}assets/images/triangle-closed.png" 200class="toggle-content-img" alt="" />Revision 2</a> <em>(December 2013)</em> 201 </p> 202 203 <div class="toggle-content-toggleme"> 204 205 <p>Maintenance release. The system version is 4.4.2. For more information, see the 206 <a href="{@docRoot}about/versions/android-4.4.html">Android 4.4 API Overview</a>.</p> 207 <dl> 208 <dt>Dependencies:</dt> 209 <dd>Android SDK Platform-tools r19 or higher is required.</dd> 210 <dd>Android SDK Tools 22.3 or higher is recommended.</dd> 211 </dl> 212 213 </div> 214</div> 215 216<div class="toggle-content closed"> 217 <p><a href="#" onclick="return toggleContent(this)"> 218 <img src="{@docRoot}assets/images/triangle-closed.png" 219class="toggle-content-img" alt="" />Revision 1</a> <em>(October 2013)</em> 220 </p> 221 222 <div class="toggle-content-toggleme"> 223 224 <p>Initial release. The system version is 4.4. For more information, see the 225 <a href="{@docRoot}about/versions/android-4.4.html">Android 4.4 API Overview</a>.</p> 226 <dl> 227 <dt>Dependencies:</dt> 228 <dd>Android SDK Platform-tools r19 or higher is required.</dd> 229 <dd>Android SDK Tools 22.3 or higher is recommended.</dd> 230 </dl> 231 232 </div> 233</div> 234 235 236 237<h3 id="gsi-4.4">Google APIs System Image</h3> 238 239<div class="toggle-content closed"> 240 <p><a href="#" onclick="return toggleContent(this)"> 241 <img src="{@docRoot}assets/images/triangle-closed.png" 242class="toggle-content-img" alt="" />Revision 4</a> <em>(March 2014)</em> 243 </p> 244 245 <div class="toggle-content-toggleme"> 246 247 <p>This release includes 248 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 4.3, 249 allowing you to test your application in an emulator using the latest Google Play services.</p> 250 251 </div> 252</div> 253 254<div class="toggle-content closed"> 255 <p><a href="#" onclick="return toggleContent(this)"> 256 <img src="{@docRoot}assets/images/triangle-closed.png" 257class="toggle-content-img" alt="" />Revision 3</a> <em>(February 2014)</em> 258 </p> 259 260 <div class="toggle-content-toggleme"> 261 262 <p>This release includes 263 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 4.2.42, 264 allowing you to test your application in an emulator using the latest Google Play services.</p> 265 266 </div> 267</div> 268 269<div class="toggle-content closed"> 270 <p><a href="#" onclick="return toggleContent(this)"> 271 <img src="{@docRoot}assets/images/triangle-closed.png" 272class="toggle-content-img" alt="" />Revision 2</a> <em>(December 2013)</em> 273 </p> 274 275 <div class="toggle-content-toggleme"> 276 277 <p>This release includes 278 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 4.0.33.</p> 279 280 </div> 281</div> 282 283<div class="toggle-content closed"> 284 <p><a href="#" onclick="return toggleContent(this)"> 285 <img src="{@docRoot}assets/images/triangle-closed.png" 286class="toggle-content-img" alt="" />Revision 1</a> <em>(October 2013)</em> 287 </p> 288 289 <div class="toggle-content-toggleme"> 290 291 <p>Initial release. This release includes 292 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 4.0.30. 293 </p> 294 295 </div> 296</div> 297 298 299 300<h2 id="4.3">Android 4.3</h2> 301 302 303<div class="toggle-content closed"> 304 305 <p><a href="#" onclick="return toggleContent(this)"> 306 <img src="{@docRoot}assets/images/triangle-closed.png" 307class="toggle-content-img" alt="" />Revision 2</a> <em>(August 2013)</em> 308 </p> 309 310 <div class="toggle-content-toggleme"> 311 312 <p>Maintenance update. The system version is 4.3.</p> 313 <dl> 314 <dt>Dependencies:</dt> 315 <dd>Android SDK Platform-tools r18 or higher is required.</dd> 316 <dd>Android SDK Tools 22.0.4 or higher is recommended.</dd> 317 </dl> 318 319 </div> 320</div> 321 322<div class="toggle-content closed"> 323 324 <p><a href="#" onclick="return toggleContent(this)"> 325 <img src="{@docRoot}assets/images/triangle-closed.png" 326class="toggle-content-img" alt="" />Revision 1</a> <em>(July 2013)</em> 327 </p> 328 329 <div class="toggle-content-toggleme"> 330 331 <p>Initial release. The system version is 4.3.</p> 332 <dl> 333 <dt>Dependencies:</dt> 334 <dd>Android SDK Platform-tools r18 or higher is required.</dd> 335 <dd>Android SDK Tools 22.0.4 or higher is recommended.</dd> 336 </dl> 337 338 </div> 339</div> 340 341<h3 id="gsi-4.3">Google APIs System Image</h3> 342 343<div class="toggle-content closed"> 344 <p><a href="#" onclick="return toggleContent(this)"> 345 <img src="{@docRoot}assets/images/triangle-closed.png" 346class="toggle-content-img" alt="" />Revision 3</a> <em>(September 2013)</em> 347 </p> 348 349 <div class="toggle-content-toggleme"> 350 351 <p>Maintenance update. This release includes 352 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 3.2.65. 353 </p> 354 355 </div> 356</div> 357 358<div class="toggle-content closed"> 359 <p><a href="#" onclick="return toggleContent(this)"> 360 <img src="{@docRoot}assets/images/triangle-closed.png" 361class="toggle-content-img" alt="" />Revision 2</a> <em>(August 2013)</em> 362 </p> 363 364 <div class="toggle-content-toggleme"> 365 366 <p>Maintenance update. This release includes 367 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 3.2.25. 368 </p> 369 370 </div> 371</div> 372 373<div class="toggle-content closed"> 374 <p><a href="#" onclick="return toggleContent(this)"> 375 <img src="{@docRoot}assets/images/triangle-closed.png" 376class="toggle-content-img" alt="" />Revision 1</a> <em>(July 2013)</em> 377 </p> 378 379 <div class="toggle-content-toggleme"> 380 381 <p>Initial release. This release includes 382 <a href="{@docRoot}google/play-services/index.html">Google Play services</a> version 3.1.58.</p> 383 384 </div> 385</div> 386 387 388 389 390<h2 id="4.2">Android 4.2</h2> 391 392 393<div class="toggle-content closed"> 394 395 <p><a href="#" onclick="return toggleContent(this)"> 396 <img src="{@docRoot}assets/images/triangle-closed.png" 397class="toggle-content-img" alt="" />Revision 2</a> <em>(February 2013)</em> 398 </p> 399 400 <div class="toggle-content-toggleme"> 401 402 <p>Maintenance update. The system version is 4.2.2.</p> 403 <dl> 404 <dt>Dependencies:</dt> 405 <dd>SDK Tools r21 or higher is required.</dd> 406 </dl> 407 408 </div> 409</div> 410 411<div class="toggle-content closed"> 412 413 <p><a href="#" onclick="return toggleContent(this)"> 414 <img src="{@docRoot}assets/images/triangle-closed.png" 415class="toggle-content-img" alt="" />Revision 1</a> <em>(November 2012)</em> 416 </p> 417 418 <div class="toggle-content-toggleme"> 419 420 <p>Initial release. The system version is 4.2.</p> 421 <dl> 422 <dt>Dependencies:</dt> 423 <dd>SDK Tools r20 or higher is required.</dd> 424 </dl> 425 426 </div> 427</div> 428 429<h3>Device Definitions</h3> 430 431<p>The platform includes the following device definitions for use in creating Android Virtual 432Devices in the <a href="{@docRoot}tools/help/avd-manager.html">AVD Manager</a>:</p> 433 434<ul> 435 <li> 436 Nexus 7 (7.3", 800 x 1280, Large tvdpi screen) 437 </li> 438 <li> 439 Galaxy Nexus (4.7", 720 x 1280, Normal xhdpi screen) 440 </li> 441 <li> 442 Nexus S (4.0", 480 x 800, Normal hdpi screen) 443 </li> 444 <li> 445 Nexus One (3.7", 480 x 720, Normal hdpi screen) 446 </li> 447 <li> 448 10.1" WXGA Tablet (1280 x 800, X-Large mdpi screen) 449 </li> 450 <li> 451 7.0" WSVGA Tablet (1024 x 600, Large mdpi screen) 452 </li> 453 <li> 454 5.4" FWVGA (480 x 854, Large mdpi screen) 455 </li> 456 <li> 457 5.1" WVGA (480 x 800, Large mdpi screen) 458 </li> 459 <li> 460 4.7" WXGA (1280 x 720, Normal xhdpi screen) 461 </li> 462 <li> 463 4.65" 720p (720 x 1280, Normal xhdpi screen) 464 </li> 465 <li> 466 4.0" WVGA (480 x 800, Normal hdpi screen) 467 </li> 468 <li> 469 3.7" WVGA (480 x 800, Normal hdpi screen) 470 </li> 471 <li> 472 3.7" FWVGA slider (480 x 854, Normal hdpi screen) 473 </li> 474 <li> 475 3.4" WQVGA (240 x 432, Normal ldpi screen) 476 </li> 477 <li> 478 3.3" WQVGA (240 x 400, Normal ldpi screen) 479 </li> 480 <li> 481 3.2" QVGA ADP2 (320 x 480, Normal mdpi screen) 482 </li> 483 <li> 484 3.2" HVGA slider ADP1 (320 x 480, Normal mdpi screen) 485 </li> 486 <li> 487 2.7" QVGA slider (240 x 320, Small ldpi screen) 488 </li> 489 <li> 490 2.7" QVGA (240 x 320, Small ldpi screen) 491 </li> 492</ul> 493 494 495 496<h2 id="4.1">Android 4.1</h2> 497 498 499<div class="toggle-content closed"> 500 501 <p><a href="#" onclick="return toggleContent(this)"> 502 <img src="{@docRoot}assets/images/triangle-closed.png" 503class="toggle-content-img" alt="" />Revision 3</a> <em>(October 2012)</em> 504 </p> 505 506 <div class="toggle-content-toggleme"> 507 508 <p>Maintenance update. The system version is 4.1.2.</p> 509 <dl> 510 <dt>Dependencies:</dt> 511 <dd>SDK Tools r20 or higher is required.</dd> 512 </dl> 513 514 </div> 515</div> 516 517<div class="toggle-content closed"> 518 519 <p><a href="#" onclick="return toggleContent(this)"> 520 <img src="{@docRoot}assets/images/triangle-closed.png" 521class="toggle-content-img" alt="" />Revision 2</a> <em>(July 2012)</em> 522 </p> 523 524 <div class="toggle-content-toggleme"> 525 526 <p>Maintenance update. The system version is 4.1.1.</p> 527 <dl> 528 <dt>Dependencies:</dt> 529 <dd>SDK Tools r20 or higher is required.</dd> 530 </dl> 531 532 </div> 533</div> 534 535<div class="toggle-content closed" > 536 537 <p><a href="#" onclick="return toggleContent(this)"> 538 <img src="{@docRoot}assets/images/triangle-closed.png" 539class="toggle-content-img" alt="" />Revision 1</a> <em>(June 2012)</em> 540 </p> 541 542 <div class="toggle-content-toggleme"> 543 544 <p>Initial release. The system version is 4.1.0.</p> 545 <dl> 546 <dt>Dependencies:</dt> 547 <dd>SDK Tools r20 or higher is required.</dd> 548 </dl> 549 550 </div> 551</div> 552 553<h3>Emulator Skins</h3> 554 555<p>The downloadable platform includes the following emulator skins:</p> 556 557<ul> 558 <li> 559 QVGA (240x320, low density, small screen) 560 </li> 561 <li> 562 WQVGA400 (240x400, low density, normal screen) 563 </li> 564 <li> 565 WQVGA432 (240x432, low density, normal screen) 566 </li> 567 <li> 568 HVGA (320x480, medium density, normal screen) 569 </li> 570 <li> 571 WVGA800 (480x800, high density, normal screen) 572 </li> 573 <li> 574 WVGA854 (480x854 high density, normal screen) 575 </li> 576 <li> 577 WXGA720 (1280x720, extra-high density, normal screen) 578 </li> 579 <li> 580 WSVGA (1024x600, medium density, large screen) 581 </li> 582 <li> 583 WXGA800-7in (1280x800, high density, large screen) <span class="new">new</span> 584 </li> 585 <li> 586 WXGA800 (1280x800, medium density, xlarge screen) 587 </li> 588</ul> 589 590<p>To test your application on an emulator that represents the <a 591href="http://play.google.com/nexus7">Nexus 7</a> tablet device, you can create an AVD with 592the new WXGA800-7in skin. For best performance, make sure to enable <a 593href="{@docRoot}tools/devices/emulator.html#accel-graphics">graphics acceleration</a> in the 594emulator configuration.</p> 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609<h2 id="4.0.3">Android 4.0.3</h2> 610 611 612<div class="toggle-content closed"> 613 614 <p><a href="#" onclick="return toggleContent(this)"> 615 <img src="{@docRoot}assets/images/triangle-closed.png" 616class="toggle-content-img" alt="" />Revision 3</a> <em>(March 2012)</em> 617 </p> 618 619 <div class="toggle-content-toggleme"> 620 621 <p>Maintenance update. The system version is 4.0.4.</p> 622 <p class="note"><strong>Note:</strong> This system image includes support for emulator 623hardware graphics acceleration when used with SDK Tools r17 or higher. 624(<a href="{@docRoot}tools/devices/emulator.html#accel-graphics">more info</a>)</p> 625 <dl> 626 <dt>Dependencies:</dt> 627 <dd>SDK Tools r17 or higher is required.</dd> 628 </dl> 629 630 </div> 631</div> 632 633<div class="toggle-content closed" > 634 635 <p><a href="#" onclick="return toggleContent(this)"> 636 <img src="{@docRoot}assets/images/triangle-closed.png" 637class="toggle-content-img" alt="" />Revision 2</a> <em>(January 2012)</em> 638 </p> 639 640 <div class="toggle-content-toggleme"> 641 642 <p>Maintenance update. The system version is 4.0.3.</p> 643 <dl> 644 <dt>Dependencies:</dt> 645 <dd>SDK Tools r14 or higher is required.</dd> 646 </dl> 647 648 </div> 649</div> 650 651<div class="toggle-content closed" > 652 653 <p><a href="#" onclick="return toggleContent(this)"> 654 <img src="{@docRoot}assets/images/triangle-closed.png" 655class="toggle-content-img" alt="" />Revision 1</a> <em>(December 2011)</em> 656 </p> 657 658 <div class="toggle-content-toggleme"> 659 660 <p>Initial release. The system version is 4.0.3.</p> 661 <dl> 662 <dt>Dependencies:</dt> 663 <dd>SDK Tools r14 or higher is required.</dd> 664 </dl> 665 666 </div> 667</div> 668 669<h3>Emulator Skins</h3> 670 671<p>The downloadable platform includes the following emulator skins:</p> 672 673<ul> 674 <li> 675 QVGA (240x320, low density, small screen) 676 </li> 677 <li> 678 WQVGA400 (240x400, low density, normal screen) 679 </li> 680 <li> 681 WQVGA432 (240x432, low density, normal screen) 682 </li> 683 <li> 684 HVGA (320x480, medium density, normal screen) 685 </li> 686 <li> 687 WVGA800 (480x800, high density, normal screen) 688 </li> 689 <li> 690 WVGA854 (480x854 high density, normal screen) 691 </li> 692 <li> 693 WXGA720 (1280x720, extra-high density, normal screen) 694 </li> 695 <li> 696 WSVGA (1024x600, medium density, large screen) 697 </li> 698 <li> 699 WXGA (1280x800, medium density, xlarge screen) 700 </li> 701</ul> 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718<h2 id="4.0">Android 4.0</h2> 719 720 721<div class="toggle-content closed"> 722 723 <p><a href="#" onclick="return toggleContent(this)"> 724 <img src="{@docRoot}assets/images/triangle-closed.png" 725class="toggle-content-img" alt="" />Android 4.0, Revision 2</a> <em>(December 2011)</em> 726 </p> 727 728 <div class="toggle-content-toggleme"> 729 <p>Maintenance update. The system version is 4.0.2.</p> 730 <dl> 731 <dt>Dependencies:</dt> 732 <dd>SDK Tools r14 or higher is required.</dd> 733 </dl> 734 </div> 735</div> 736 737<div class="toggle-content closed"> 738 739 <p><a href="#" onclick="return toggleContent(this)"> 740 <img src="{@docRoot}assets/images/triangle-closed.png" 741class="toggle-content-img" alt="" />Android 4.0, Revision 1</a> <em>(October 2011)</em> 742 </p> 743 744 <div class="toggle-content-toggleme"> 745 <p>Initial release. The system version is 4.0.1.</p> 746 <dl> 747 <dt>Dependencies:</dt> 748 <dd>SDK Tools r14 or higher is required.</dd> 749 </dl> 750 </div> 751</div> 752 753 754<h3>Emulator Skins</h3> 755 756<p>The downloadable platform includes the following emulator skins:</p> 757 758<ul> 759 <li> 760 QVGA (240x320, low density, small screen) 761 </li> 762 <li> 763 WQVGA400 (240x400, low density, normal screen) 764 </li> 765 <li> 766 WQVGA432 (240x432, low density, normal screen) 767 </li> 768 <li> 769 HVGA (320x480, medium density, normal screen) 770 </li> 771 <li> 772 WVGA800 (480x800, high density, normal screen) 773 </li> 774 <li> 775 WVGA854 (480x854 high density, normal screen) 776 </li> 777 <li> 778 WXGA720 (1280x720, extra-high density, normal screen) <span class="new">new</span> 779 </li> 780 <li> 781 WSVGA (1024x600, medium density, large screen) <span class="new">new</span> 782 </li> 783 <li> 784 WXGA (1280x800, medium density, xlarge screen) 785 </li> 786</ul> 787 788<p>To test your application on an emulator that represents the latest Android device, you can create 789an AVD with the new WXGA720 skin (it's an xhdpi, normal screen device). Note that the emulator 790currently doesn't support the new on-screen navigation bar for devices without hardware navigation 791buttons, so when using this skin, you must use keyboard keys <em>Home</em> for the Home button, 792<em>ESC</em> for the Back button, and <em>F2</em> or <em>Page-up</em> for the Menu button.</p> 793 794<p>However, due to performance issues in the emulator when running high-resolution screens such as 795the one for the WXGA720 skin, we recommend that you primarily use the traditional WVGA800 skin 796(hdpi, normal screen) to test your application.</p> 797 798 799 800 801 802 803 804 805 806 807 808 809 810<h2 id="3.2">Android 3.2</h2> 811 812 813 814<div class="toggle-content closed"> 815 816 <p><a href="#" onclick="return toggleContent(this)"> 817 <img src="{@docRoot}assets/images/triangle-closed.png" 818class="toggle-content-img" alt="" />Android 3.2, Revision 1</a> <em>(July 2011)</em> 819 </p> 820 821 <div class="toggle-content-toggleme"> 822 823<dl> 824<dt>Initial release. SDK Tools r12 or higher is recommended.</dt> 825</dl> 826 827 </div> 828</div> 829 830 831 832 833<h3>Emulator Skins</h3> 834 835<p>The downloadable platform includes the following emulator skin:</p> 836 837<ul> 838 <li> 839 WXGA (1280x800, medium density, xlarge screen) 840 </li> 841</ul> 842 843<p>For more information about how to develop an application that displays 844and functions properly on all Android-powered devices, see <a 845href="{@docRoot}guide/practices/screens_support.html">Supporting Multiple 846Screens</a>.</p> 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865<h2 id="3.1">Android 3.1</h2> 866 867 868<div class="toggle-content closed"> 869 870<p><a href="#" onclick="return toggleContent(this)"> 871 <img src="{@docRoot}assets/images/triangle-closed.png" 872class="toggle-content-img" alt="" />Android 3.1, Revision 3</a> <em>(July 2011)</em> 873</p> 874 875<div class="toggle-content-toggleme"> 876 877<dl> 878<dt>Dependencies:</dt> 879<dd> 880<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r12</a> or 881higher.</p> 882</dd> 883<dt>Notes:</dt> 884<dd> 885<p>Improvements to the platform's rendering library to support the visual layout editor in the ADT 886Eclipse plugin. This revision allows for more drawing features in ADT and fixes several 887bugs in the previous rendering library. It also unlocks several editor features that were added in 888ADT 12.</p> 889</dd> 890</dl> 891 892</div> 893</div> 894 895 896<div class="toggle-content closed" > 897 898<p><a href="#" onclick="return toggleContent(this)"> 899 <img src="{@docRoot}assets/images/triangle-closed.png" 900class="toggle-content-img" alt="" />Android 3.1, Revision 2</a> <em>(May 2011)</em> 901</p> 902 903<div class="toggle-content-toggleme"> 904 905<dl> 906<dt>Dependencies:</dt> 907<dd> 908<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r11</a> or 909higher.</p> 910</dd> 911<dt>Notes:</dt> 912<dd> 913<p>Fixes an issue with the visual layout editor rendering library that prevented Android 3.1 from 914running in ADT.</p> 915</dd> 916</dl> 917 918</div> 919</div> 920 921 922<div class="toggle-content closed"> 923 924<p><a href="#" onclick="return toggleContent(this)"> 925 <img src="{@docRoot}assets/images/triangle-closed.png" 926class="toggle-content-img" alt="" />Android 3.1, Revision 1</a> <em>(May 2011)</em> 927</p> 928 929<div class="toggle-content-toggleme"> 930 931<dl> 932<dt>Dependencies:</dt> 933<dd> 934<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r11</a> or 935higher.</p> 936</dd> 937</dl> 938 939</div> 940</div> 941 942 943<h3>Emulator Skins</h3> 944 945<p>The downloadable platform includes the following emulator skin:</p> 946 947<ul> 948 <li> 949 WXGA (1280x800, medium density, xlarge screen) 950 </li> 951</ul> 952 953<p>For more information about how to develop an application that displays 954and functions properly on all Android-powered devices, see <a 955href="{@docRoot}guide/practices/screens_support.html">Supporting Multiple 956Screens</a>.</p> 957 958 959 960 961 962 963 964 965 966 967 968<h2 id="3.0">Android 3.0</h2> 969 970 971<div class="toggle-content closed" > 972 973<p><a href="#" onclick="return toggleContent(this)"> 974 <img src="{@docRoot}assets/images/triangle-closed.png" 975class="toggle-content-img" alt="" />Android 3.0, Revision 2</a> <em>(July 2011)</em> 976</p> 977 978<div class="toggle-content-toggleme"> 979 980<dl> 981<dt>Dependencies:</dt> 982<dd> 983<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r12</a> or 984higher.</p> 985</dd> 986<dt>Notes:</dt> 987<dd> 988<p>Improvements to the platform's rendering library to support the visual layout editor in the ADT 989Eclipse plugin. This revision allows for more drawing features in ADT and fixes several 990bugs in the previous rendering library. It also unlocks several editor features that were added in 991ADT 12.</p> 992</dd> 993</dl> 994 995</div> 996</div> 997 998<div class="toggle-content closed"> 999 1000<p><a href="#" onclick="return toggleContent(this)"> 1001 <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" 1002 alt="" />Android 3.0, Revision 1</a> <em>(February 2011)</em> 1003</p> 1004 1005<div class="toggle-content-toggleme"> 1006 1007<dl> 1008<dt>Dependencies:</dt> 1009<dd> 1010<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r10</a> or higher.</p> 1011</dd> 1012</dl> 1013 1014</div> 1015</div> 1016 1017 1018 1019<h3>Emulator Skins</h3> 1020 1021<p>The downloadable platform includes the following emulator skin:</p> 1022 1023<ul> 1024 <li> 1025 WXGA (1280x800, medium density, xlarge screen) 1026 </li> 1027</ul> 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046<h2 id="2.3.4">Android 2.3.4</h2> 1047 1048 1049<div class="toggle-content closed" > 1050 1051<p><a href="#" onclick="return toggleContent(this)"> 1052 <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" 1053 alt="" />Android 2.3.4, Revision 1</a> <em>(May 2011)</em> 1054</p> 1055 1056 <div class="toggle-content-toggleme"> 1057 <dl> 1058 <dt>Dependencies:</dt> 1059 <dd> 1060 <p>Requires SDK Tools r11 or higher.</p> 1061 </dd> 1062 </dl> 1063 </div> 1064</div> 1065 1066 1067<h3>Emulator Skins</h3> 1068 1069<p>The downloadable platform includes a set of emulator skins that you can use 1070for modeling your application in different screen sizes and resolutions. The 1071emulator skins are:</p> 1072 1073<ul> 1074 <li> 1075 QVGA (240x320, low density, small screen) 1076 </li> 1077 <li> 1078 WQVGA400 (240x400, low density, normal screen) 1079 </li> 1080 <li> 1081 WQVGA432 (240x432, low density, normal screen) 1082 </li> 1083 <li> 1084 HVGA (320x480, medium density, normal screen) 1085 </li> 1086 <li> 1087 WVGA800 (480x800, high density, normal screen) 1088 </li> 1089 <li> 1090 WVGA854 (480x854 high density, normal screen) 1091 </li> 1092</ul> 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106<h2 id="2.3.3">Android 2.3.3</h2> 1107 1108 1109<div class="toggle-content closed" > 1110 1111<p><a href="#" onclick="return toggleContent(this)"> 1112 <img src="{@docRoot}assets/images/triangle-closed.png" 1113class="toggle-content-img" alt="" />Android 2.3.3, Revision 2</a> <em>(July 2011)</em> 1114</p> 1115 1116<div class="toggle-content-toggleme"> 1117 1118<dl> 1119<dt>Dependencies:</dt> 1120<dd> 1121<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r12</a> or 1122higher.</p> 1123</dd> 1124<dt>Notes:</dt> 1125<dd> 1126<p>Improvements to the platform's rendering library to support the visual layout editor in the ADT 1127Eclipse plugin. This revision allows for more drawing features in ADT and fixes several 1128bugs in the previous rendering library. It also unlocks several editor features that were added in 1129ADT 12.</p> 1130</dd> 1131</dl> 1132 1133</div> 1134</div> 1135 1136<div class="toggle-content closed" > 1137 1138<p><a href="#" onclick="return toggleContent(this)"> 1139 <img src="{@docRoot}assets/images/triangle-closed.png" 1140class="toggle-content-img" alt="" />Android 2.3.3, Revision 1</a> <em>(February 2011)</em> 1141</p> 1142 1143<div class="toggle-content-toggleme"> 1144<dl> 1145<dt>Dependencies:</dt> 1146<dd> 1147<p>Requires SDK Tools r9 or higher.</p> 1148</dd> 1149</dl> 1150 1151</div> 1152</div> 1153 1154 1155<h3>Emulator Skins</h3> 1156 1157<p>The downloadable platform includes a set of emulator skins that you can use 1158for modeling your application in different screen sizes and resolutions. The 1159emulator skins are:</p> 1160 1161<ul> 1162 <li> 1163 QVGA (240x320, low density, small screen) 1164 </li> 1165 <li> 1166 WQVGA400 (240x400, low density, normal screen) 1167 </li> 1168 <li> 1169 WQVGA432 (240x432, low density, normal screen) 1170 </li> 1171 <li> 1172 HVGA (320x480, medium density, normal screen) 1173 </li> 1174 <li> 1175 WVGA800 (480x800, high density, normal screen) 1176 </li> 1177 <li> 1178 WVGA854 (480x854 high density, normal screen) 1179 </li> 1180</ul> 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193<h2 id="2.3">Android 2.3</h2> 1194 1195 1196<div class="toggle-content closed" > 1197 1198<p><a href="#" onclick="return toggleContent(this)"> 1199 <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" 1200 alt="" />Android 2.3, Revision 1</a> <em>(December 2010)</em> 1201</p> 1202 1203 <div class="toggle-content-toggleme"> 1204 <dl> 1205 <dt>Dependencies:</dt> 1206 <dd> 1207 <p>Requires SDK Tools r8 or higher.</p> 1208 </dd> 1209 </dl> 1210 </div> 1211</div> 1212 1213 1214<h3>Emulator Skins</h3> 1215 1216<p>The downloadable platform includes a set of emulator skins that you can use 1217for modeling your application in different screen sizes and resolutions. The 1218emulator skins are:</p> 1219 1220<ul> 1221 <li> 1222 QVGA (240x320, low density, small screen) 1223 </li> 1224 <li> 1225 WQVGA400 (240x400, low density, normal screen) 1226 </li> 1227 <li> 1228 WQVGA432 (240x432, low density, normal screen) 1229 </li> 1230 <li> 1231 HVGA (320x480, medium density, normal screen) 1232 </li> 1233 <li> 1234 WVGA800 (480x800, high density, normal screen) 1235 </li> 1236 <li> 1237 WVGA854 (480x854 high density, normal screen) 1238 </li> 1239</ul> 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249<h2 id="2.2">Android 2.2</h2> 1250 1251 1252<div class="toggle-content closed" > 1253 1254<p><a href="#" onclick="return toggleContent(this)"> 1255 <img src="{@docRoot}assets/images/triangle-closed.png" 1256class="toggle-content-img" alt="" />Android {@sdkPlatformVersion}, Revision 3</a> <em>(July 2011)</em> 1257</p> 1258 1259<div class="toggle-content-toggleme"> 1260 1261<dl> 1262<dt>Dependencies:</dt> 1263<dd> 1264<p>Requires <a href="{@docRoot}tools/sdk/tools-notes.html">SDK Tools r12</a> or 1265higher.</p> 1266</dd> 1267<dt>Notes:</dt> 1268<dd> 1269<p>Improvements to the platform's rendering library to support the visual layout editor in the ADT 1270Eclipse plugin. This revision allows for more drawing features in ADT and fixes several 1271bugs in the previous rendering library. It also unlocks several editor features that were added in 1272ADT 12.</p> 1273</dd> 1274</dl> 1275 1276</div> 1277</div> 1278 1279<div class="toggle-content closed" > 1280 1281<p><a href="#" onclick="return toggleContent(this)"> 1282 <img src="{@docRoot}assets/images/triangle-closed.png" 1283class="toggle-content-img" alt="" />Android {@sdkPlatformVersion}, Revision 2</a> <em>(July 2010)</em> 1284</p> 1285 1286<div class="toggle-content-toggleme"> 1287<dt>Dependencies:</dt> 1288<dd> 1289<p>Requires SDK Tools r6 or higher.</p> 1290</dd> 1291 1292<dt>System Image:</dt> 1293<dd> 1294<ul> 1295<li>Adds default Search Widget.</li> 1296<li>Includes proper provisioning for the platform's Backup Manager. For more information about how 1297to use the Backup Manager, see <a href="{@docRoot}guide/topics/data/backup.html">Data 1298Backup</a>.</li> 1299<li>Updates the Android 2.2 system image to FRF91.</li> 1300</ul> 1301</dd> 1302 1303</dl> 1304 </div> 1305</div> 1306 1307<div class="toggle-content closed"> 1308 1309<p><a href="#" onclick="return toggleContent(this)"> 1310 <img src="{@docRoot}assets/images/triangle-closed.png" 1311class="toggle-content-img" alt="" />Android {@sdkPlatformVersion}, Revision 1</a> <em>(May 2010)</em></p> 1312 1313<div class="toggle-content-toggleme"> 1314<dl> 1315<dt>Dependencies:</dt> 1316<dd> 1317<p>Requires SDK Tools r6 or higher.</p> 1318</dd> 1319 1320<dt>Tools:</dt> 1321<dd> 1322<p>Adds support for building with Android library projects. See <a href="{@docRoot}tools/sdk/tools-notes.html">SDK 1323Tools, r6</a> for information.</p> 1324</dd> 1325 1326</dl> 1327 </div> 1328</div> 1329 1330 1331<h3>Emulator Skins</h3> 1332 1333<p>The downloadable platform includes a set of emulator skins that you can use 1334for modeling your application in different screen sizes and resolutions. The 1335emulator skins are:</p> 1336 1337<ul> 1338 <li> 1339 QVGA (240x320, low density, small screen) 1340 </li> 1341 <li> 1342 WQVGA (240x400, low density, normal screen) 1343 </li> 1344 <li> 1345 FWQVGA (240x432, low density, normal screen) 1346 </li> 1347 <li> 1348 HVGA (320x480, medium density, normal screen) 1349 </li> 1350 <li> 1351 WVGA800 (480x800, high density, normal screen) 1352 </li> 1353 <li> 1354 WVGA854 (480x854 high density, normal screen) 1355 </li> 1356</ul> 1357
