1 page.title=Android 2.2 Platform Highlights 2 excludeFromSuggestions=true 3 4 @jd:body 5 6 7 <style type="text/css"> 8 #jd-content { 9 max-width:800px; 10 } 11 #jd-content div.screenshot { 12 float:left; 13 clear:left; 14 padding:15px 30px 15px 0; 15 } 16 #jd-content div.video { 17 float:right; 18 padding:0 60px 40px; 19 margin-top:-15px; 20 } 21 #jd-content table.columns { 22 margin:0 0 1em 0; 23 } 24 #jd-content table.columns td { 25 padding:0; 26 } 27 #jd-content table.columns td+td { 28 padding:0 2em; 29 } 30 #jd-content table.columns td img { 31 margin:0; 32 } 33 #jd-content table.columns td+td>*:first-child { 34 margin-top:-2em; 35 } 36 .green { 37 color:#8db529; 38 font-weight:bold; 39 } 40 </style> 41 42 43 <div class="video"> 44 <object width="278 height="180"> 45 <param name="movie" value="http://www.youtube.com/v/yAZYSVr2Bhc&hl=en&fs=1&"></param> 46 <param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" 47 value="always"></param> 48 <embed src="//www.youtube.com/v/yAZYSVr2Bhc&hl=en&fs=1&" type="application/x-shockwave-flash" 49 allowscriptaccess="always" allowfullscreen="true" width="278" height="180"></embed> 50 </object> 51 </div> 52 53 54 <p>The Android 2.2 platform introduces many new and exciting features for 55 users and developers. This document provides a glimpse at some of the new user features 56 and technologies in Android 2.2. For more information about the new developer APIs, see the <a 57 href="android-2.2.html#api">Android 2.2 version notes</a>.</p> 58 59 <ul> 60 <li><a href="#UserFeatures">New User Features</a></li> 61 <li><a href="#PlatformTechnologies">New Platform Technologies</a></li> 62 <li><a href="#DeveloperServices">New Developer Services</a></li> 63 <li><a href="#DeveloperApis">New Developer APIs</a></li> 64 </ul> 65 66 67 68 <h2 id="UserFeatures" style="clear:right">New User Features</h2> 69 70 <h3>Home</h3> 71 72 <table class="columns" style="max-width:800px"> 73 <tr> 74 <td> 75 <img src="{@docRoot}sdk/images/2.2/22home.png" alt="" height=230 /> 76 </td> 77 <td> 78 <p style="margin-top:0">New Home screen <span class="green">tips widget</span> assists new users on 79 how to configure the 80 home screen with shortcuts and widgets and how to make use of multiple home screens.</p> 81 <p>The Phone, applications Launcher, and Browser now have <span class="green">dedicated 82 shortcuts</span> on the Home screen, making it easy to access them from any of the 5 home screen 83 panels.</p> 84 </td> 85 </tr> 86 </table> 87 88 89 90 <h3>Exchange support</h3> 91 92 <table class="columns" style="max-width:800px"> 93 <tr> 94 <td> 95 <p><span class="green">Improved security</span> with the addition of numeric pin or alpha-numeric 96 password options to unlock device. Exchange administrators can enforce password policy across 97 devices.</p> 98 <p><span class="green">Remote wipe:</span> Exchange administrators can remotely reset the device to 99 factory defaults to secure data in case device is lost or stolen.</p> 100 <p><span class="green">Exchange Calendars are now supported</span> in the Calendar application.</p> 101 <p><span class="green">Auto-discovery:</span> you just need to know your user-name and password to 102 easily set up and sync an Exchange account (available for Exchange 2007 and higher).</p> 103 <p><span class="green">Global Address Lists look-up</span> is now available in the Email 104 application, enabling users to auto-complete recipient names from the directory.</p> 105 </td> 106 <td> 107 <img src="{@docRoot}sdk/images/2.2/22exchange.png" alt="" height=300 /> 108 </td> 109 </tr> 110 </table> 111 112 113 <h3>Camera and Gallery</h3> 114 115 <table class="columns" style="max-width:800px"> 116 <tr> 117 <td> 118 <img src="{@docRoot}sdk/images/2.2/22gallery.png" alt="" height=220 /> 119 </td> 120 <td> 121 <p>Gallery allows you to <span class="green">peek into picture stacks</span> using a zoom 122 gesture.</p> 123 <p>Camera <span class="green">onscreen buttons</span> provide easy access to a new UI for 124 controling zoom, flash, white balance, geo-tagging, focus and exposure. Camcorder also provides 125 an easy way to set video size/quality for MMS and YouTube.</p> 126 <p>With the <span class="green">LED flash</span> now enabled for the Camcorder, videos can be shot 127 at night or in low light settings.</p> 128 </td> 129 </tr> 130 </table> 131 132 133 <h3>Portable hotspot</h3> 134 135 <table class="columns" style="max-width:800px"> 136 <tr> 137 <td> 138 <p>Certain devices like the Nexus One can be turned into <span class="green">a portable Wi-Fi 139 hotspot</span> that can be shared with up to 8 devices.</p> 140 <p>You can use your Android-powered phone as a 3G connection for a Windows or Linux laptop by 141 connecting their phone to the computer with a USB cable. The connection is then shared between the 142 two devices.</p> 143 </td> 144 <td> 145 <img src="{@docRoot}sdk/images/2.2/22hotspot.png" alt="" height=180 /> 146 </td> 147 </tr> 148 </table> 149 150 151 <h3>Multiple keyboard languages</h3> 152 153 <table class="columns" style="max-width:800px"> 154 <tr> 155 <td> 156 <img src="{@docRoot}sdk/images/2.2/22keyboard.png" alt="" height=220 /> 157 </td> 158 <td> 159 <p>Multi-lingual users can add multiple languages to the keyboard and <span class="green">switch 160 between multiple Latin-based input languages</span> by swiping across the space bar. This changes 161 the keys as well as the auto-suggest dictionary.</p> 162 </td> 163 </tr> 164 </table> 165 166 167 <h3>Improved performance</h3> 168 169 <table class="columns" style="max-width:800px"> 170 <tr> 171 <td> 172 <p><span class="green">Performance of the browser</span> has been enhanced using the V8 engine, 173 which enables faster loading of JavaScript-heavy pages.</p> 174 <p><span class="green">Dalvik Performance Boost:</span> 2x-5x performance speedup for CPU-heavy code 175 over Android 2.1 with Dalvik JIT.</p> 176 <p>The graph to the right shows the performance <span class="green">speedup</span> from Android 2.1 177 to Android 2.2 using various benchmark tests. For example, LinPack is now more than 5 times 178 faster.</p> 179 <p><span class="green">Kernel Memory Management Boost:</span> Improved memory reclaim by up to 20x, 180 which results in faster app switching and smoother performance on memory-constrained devices.</p> 181 </td> 182 <td> 183 <img src="{@docRoot}sdk/images/2.2/jit-graph.png" alt="" height=200 /> 184 </td> 185 </tr> 186 </table> 187 188 189 190 191 192 <h2 id="PlatformTechnologies">New Platform Technologies</h2> 193 194 195 <h3>Media framework</h3> 196 197 <ul> 198 <li>New media framework (Stagefright) that supports local file playback and HTTP progressive 199 streaming</li> 200 <li>Continued support for OpenCore in Android 2.2</li> 201 </ul> 202 203 204 <h3>Bluetooth</h3> 205 206 <ul> 207 <li>Voice dialing over Bluetooth</li> 208 <li>Ability to share contacts with other phones</li> 209 <li>Support for Bluetooth enabled car and desk docks</li> 210 <li>Improved compatibility matrix with car kits and headsets</li> 211 </ul> 212 213 214 <h3>2.6.32 kernel upgrade</h3> 215 216 <ul> 217 <li>HIGHMEM support for RAM >256MB</li> 218 <li>SDIO scheduling and BT improvements</li> 219 </ul> 220 221 222 223 224 <h2 id="DeveloperServices">New Developer Services</h2> 225 226 227 <h3>Android Cloud to Device Messaging</h3> 228 229 <p>Apps can utilize Android Cloud to Device Messaging to enable mobile alert, send to phone, and 230 two-way push sync functionality.</p> 231 232 233 <h3>Android Application Error Reports</h3> 234 235 <p>New bug reporting feature for Google Play apps enables developers to receive crash and freeze 236 reports from their users. The reports will be available when they log into their publisher 237 account.</p> 238 239 240 241 242 <h2 id="DeveloperApis">New Developer APIs</h2> 243 244 245 <h3>Apps on external storage</h3> 246 247 <p>Applications can now request installation on the shared external storage (such as an SD 248 card).</p> 249 250 251 <h3>Media framework</h3> 252 253 <p>Provides new APIs for audio focus, routing audio to SCO, and auto-scan of files to media 254 database. Also provides APIs to let applications detect completion of sound loading and auto-pause 255 and auto-resume audio playback.</p> 256 257 258 <h3>Camera and Camcorder</h3> 259 260 <p>New preview API doubles the frame rate from ~10FPS to ~20FPS. Camera now supports portrait 261 orientation, zoom controls, access to exposure data, and a thumbnail utility. A new camcorder 262 profile enables apps to determine device hardware capablities.</p> 263 264 265 <h3>Graphics</h3> 266 267 <p>New APIs for OpenGL ES 2.0, working with YUV image format, and ETC1 for texture 268 compression.</p> 269 270 271 <h3>Data backup</h3> 272 273 <p>Apps can participate in data backup and restore, to ensure that users maintain their data 274 after performing a factory reset or when switching devices.</p> 275 276 277 <h3>Device policy manager</h3> 278 279 <p>New device policy management APIs allow developers to write "device administrator" applications 280 that can control security features on the device, such as the minimum password strength, data wipe, 281 and so on. Users can select the administrators that are enabled on their devices.</p> 282 283 284 <h3>UI framework</h3> 285 286 <p>New "car mode" and "night mode" controls and configurations allow applications to adjust their UI 287 for these situations. A scale gesture detector API provides improved definition of multi-touch 288 events. Applications can now customize the bottom strip of a TabWidget.</p> 289 290 291 292 <p>For more information about the new developer APIs, see the <a 293 href="android-2.2.html#api">Android 2.2 version notes</a> and the <a 294 href="{@docRoot}sdk/api_diff/8/changes.html">API Differences Report</a>.</p> 295 296 297 298 299 300
