1page.title=Creating Custom Views 2page.tags=widgets,ui,layout 3 4trainingnavtop=true 5startpage=true 6 7@jd:body 8 9<div id="tb-wrapper"> 10 <div id="tb"> 11 12 <h2>Dependencies and prerequisites</h2> 13 <ul> 14 <li>Android 2.1 (API level 7) or higher</li> 15 </ul> 16 17 <h2>You should also read</h2> 18 <ul> 19 <li><a href="{@docRoot}guide/topics/ui/custom-components.html">Custom Components</a> 20 </li> 21 <li><a href="{@docRoot}guide/topics/ui/ui-events.html">Input Events</a></li> 22 <li><a href="{@docRoot}guide/topics/graphics/prop-animation.html">Property 23 Animation</a></li> 24 <li><a href="{@docRoot}guide/topics/graphics/hardware-accel.html">Hardware 25 Acceleration</a></li> 26 <li><a href="{@docRoot}guide/topics/ui/accessibility/index.html"> 27 Accessibility</a> developer guide</li> 28 </ul> 29<h2>Try it out</h2> 30<div class="download-box"> 31<a href="{@docRoot}shareables/training/CustomView.zip" 32class="button">Download the sample</a> 33<p class="filename">CustomView.zip</p> 34</div> 35 </div> 36</div> 37 38<p> 39The Android framework has a large set of {@link android.view.View} classes for 40interacting with the user and displaying various 41types of data. But 42sometimes your app has unique needs that aren’t covered by the built-in views. This class shows you 43how to create your 44own views that are robust and reusable.</p> 45 46<h2>Lessons</h2> 47 48<dl> 49<dt><b><a href="create-view.html">Creating a View Class</a></b></dt> 50<dd>Create a class that acts like a built-in view, with custom 51 attributes and support from the <a href="http://developer.android.com/studio/write/layout-editor.html">Android Studio</a> layout editor. 52</dd> 53 54<dt><b><a href="custom-drawing.html">Custom Drawing</a></b></dt> 55<dd>Make your view visually distinctive using the Android graphics system.</dd> 56 57<dt><b><a href="making-interactive.html">Making the View Interactive</a></b></dt> 58<dd>Users expect a view to react smoothly and naturally to input gestures. 59 This lesson discusses how to use gesture detection, physics, and animation 60 to give your user interface a professional feel. 61</dd> 62 63<dt><b><a href="optimizing-view.html">Optimizing the View</a></b></dt> 64<dd>No matter how beautiful your UI is, users won't love it if it 65 doesn't run at a consistently high frame rate. Learn how to avoid common 66 performance problems, and how to use hardware acceleration to make your 67 custom drawings run faster. 68</dd> 69 70</dl> 71 72 73 74 75 76 77 78 79