Dojo学习笔记(十五):Dojo滑动条Slider
Slider没有相对应的 HTML 控件,是一个相对独立的图形化的组件,可以通过鼠标、方向键来控制刻度尺的刻度。Dijit提供了水平和垂直滑动条。 Slider widget的使用却如同使用 CheckBox widget一样的方便。用户可以用鼠标点击、拖拉、中键滚动或者用键盘的上、下、左、右按键来选择Slider widget的刻度。 Silder 是由六个 widgets 组成,分别是:dijit.form.HorizontalSlider,dijit.form.VerticalSlider,dijit.form.HorizontalRule,dijit.form.VerticalRule,dijit.form.HorizontalRuleLabels,dijit.form.VerticalRuleLabels。 dijit.form.HorizontalSlider是水平方向的slider, dijit.form.VerticalSlider 是垂直方向的slider,提供可调节大小的标尺。其属性如下: 滑动条:HorizontalSlider 和 VerticalSlider 的属性
函数increment()表示以1单位为步长增加滑动条的值;函数decrement()表示以1单位为步长减少滑动条的值。 刻度尺:HorizontalRule 和 VerticalRule 的属性
dijit.form.HorizontalRuleLabels,dijit.form.VerticalRuleLabels 可以为标尺提供刻度标签,其属性如下: 标签:HorizontalRuleLabels 和 VerticalRuleLabels 的属性
--声明方式: <!DOCTYPEHTML> <htmllang="en"> <head> <metacharset="utf-8"> <title>Demo:Slider</title> <linkrel="stylesheet"href="dijit/themes/claro/claro.css"> <scriptsrc="dojo/dojo.js"data-dojo-config="async:true,parSEOnLoad:true"></script> <script> //导入slider所需类 require(["dijit/form/VerticalSlider","dojo/parser"]); </script> </head> <bodyclass="claro"> <inputid="vertSlider"data-dojo-type="dijit/form/VerticalSlider" data-dojo-props="minimum:0,maximum:100,pageIncrement:20,value:20,intermediateChanges:true,style:'height:200px;'"> </body> </html> --编程方式: <!DOCTYPEHTML> <htmllang="en"> <head> <metacharset="utf-8"> <title>Demo:Slider</title> <linkrel="stylesheet"href="dijit/themes/claro/claro.css"> <scriptsrc="dojo/dojo.js"data-dojo-config="async:true,parSEOnLoad:true"></script> <script> //导入slider所需类 require(["dijit/form/VerticalSlider"],function(VerticalSlider){ //创建垂直滑动条 varvertSlider=newVerticalSlider({ minimum:0,style:"height:200px;" },"vertSlider"); //Startupthewidget vertSlider.startup(); }); </script> </head> <bodyclass="claro"> <inputid="vertSlider"/> </body> </html> 输出: --添加文本标签,创建水平滑动条: <!DOCTYPEHTML> <htmllang="en"> <head> <metacharset="utf-8"> <title>Demo:Slider</title> <linkrel="stylesheet"href="dijit/themes/claro/claro.css"> <scriptsrc="dojo/dojo.js"data-dojo-config="async:true,parSEOnLoad:true"></script> <script> //导入slider所需类 require(["dijit/form/HorizontalSlider","dijit/form/HorizontalRuleLabels","dijit/form/HorizontalRule","dojo/parser"]); </script> </head> <bodyclass="claro"> <divstyle="width:600px;margin-left:30px;"> <!--创建水平滑动条标签--> <oldata-dojo-type="dijit/form/HorizontalRuleLabels" data-dojo-props="container:'topDecoration',count:11,numericMargin:0" style="height:1.2em;font-weight:bold"> </ol> <!--创建水平滑动条刻度尺--> <divdata-dojo-type="dijit/form/HorizontalRule" data-dojo-props="container:'topDecoration',count:11" style="height:5px;margin:012px;"> </div> <!--创建水平滑动条,隐藏滑动条两端button--> <inputid="hslider"type="range"value="3" data-dojo-type="dijit/form/HorizontalSlider" data-dojo-props="minimum:0,maximum:10,showButtons:false,discreteValues:11"> <!--创建水平滑动条刻度尺--> <divdata-dojo-type="dijit/form/HorizontalRule" data-dojo-props="container:'bottomDecoration',count:5" style="height:5px;margin:012px;"> </div> <!--创建水平滑动条标签--> <oldata-dojo-type="dijit/form/HorizontalRuleLabels" data-dojo-props="container:'bottomDecoration'" style="height:1em;font-weight:bold;"> <li>lowest</li> <li></li> <li>lowest2</li> <li>normal</li> <li>highest</li> </ol> </div> </body> </html> 输出:
--添加文本标签,创建垂直滑动条: <!DOCTYPEHTML> <htmllang="en"> <head> <metacharset="utf-8"> <title>Demo:Slider</title> <linkrel="stylesheet"href="dijit/themes/claro/claro.css"> <scriptsrc="dojo/dojo.js"data-dojo-config="async:true,parSEOnLoad:true"></script> </head> <bodyclass="claro"> <divid="vertSlider"></div> <script> require(["dijit/form/VerticalSlider","dijit/form/VerticalRuleLabels","dijit/form/VerticalRule","dojo/dom-construct","dojo/parser","dojo/dom","dojo/domReady!"],function(VerticalSlider,VerticalRuleLabels,VerticalRule,domConstruct,parser,dom){ //创建刻度尺 varrulesNode=domConstruct.create("div",{},dom.byId("vertSlider"),"first"); varsliderRules=newVerticalRule({container:"leftDecoration",style:"width:5px;"},rulesNode); //创建标签 varlabelsNode=domConstruct.create("div","first"); varsliderLabels=newVerticalRuleLabels({container:"rightDecoration",labelStyle:"font-style:italic;font-size:0.75em"},labelsNode); //创建垂直滑动条 varvertSlider=newVerticalSlider({minimum:0,style:"height:200px;"},"vertSlider"); //生成小部件 vertSlider.startup(); sliderRules.startup(); sliderLabels.startup(); }); </script> </body> </html> 输出: --创建水平刻度: <!DOCTYPEHTML> <htmllang="en"> <head> <metacharset="utf-8"> <title>Demo:Slider</title> <linkrel="stylesheet"href="dijit/themes/claro/claro.css"> <scriptsrc="dojo/dojo.js"data-dojo-config="async:true,"dojo/parser"]); </script> </head> <bodyclass="claro"> <divdojoType="dijit.form.HorizontalSlider"name="caffeine" value="100" maximum="175" minimum="2" showButtons="false" style="margin:5px;width:300px;height:20px;"> <scripttype="dojo/method"event="onChange"args="newValue"> console.log(newValue); </script> <oldojoType="dijit.form.HorizontalRuleLabels"container="topDecoration" style="height:10px;font-size:75%;color:gray;"count="6"> </ol> <divdojoType="dijit.form.HorizontalRule"container="topDecoration" count=6style="height:5px;"> </div> <divdojoType="dijit.form.HorizontalRule"container="bottomDecoration" count=5style="height:5px;"> </div> <oldojoType="dijit.form.HorizontalRuleLabels"container="bottomDecoration" style="height:10px;font-size:75%;color:gray;"> <li>green<br>tea</li> <li>coffee</li> <li>red<br>bull</li> </ol> </div> </body> </html> 输出: --创建垂直刻度 <!DOCTYPEHTML> <htmllang="en"> <head> <metacharset="utf-8"> <title>Demo:Slider</title> <linkrel="stylesheet"href="dijit/themes/claro/claro.css"> <scriptsrc="dojo/dojo.js"data-dojo-config="async:true,"dojo/parser"]); </script> </head> <bodyclass="claro"> <divdojoType="dijit.form.VerticalSlider"name="caffeine" value="100" maximum="175" minimum="2" showButtons="false" style="margin:5px;width:75px;height:300px;"> <scripttype="dojo/method"event="onChange"args="newValue"> console.log(newValue); </script> <oldojoType="dijit.form.VerticalRuleLabels"container="leftDecoration" style="height:300px;width:25px;font-size:75%;color:gray;"count="6"> </ol> <divdojoType="dijit.form.VerticalRule"container="leftDecoration" count=6style="height:300px;width:5px;"> </div> <divdojoType="dijit.form.VerticalRule"container="rightDecoration" count=5style="height:300px;width:5px;"> </div> <oldojoType="dijit.form.VerticalRuleLabels"container="rightDecoration" style="height:300px;width:25px;font-size:75%;color:gray;"> <li>green tea</li> <li>coffee</li> <li>red bull</li> </ol> </div> </body> </html> 输出: 总结:分为三步(1)创建滑动条(2)创建刻度尺(3)创建标签。 参考: http://dojotoolkit.org/documentation/tutorials/1.10/sliders/ http://www.ibm.com/developerworks/cn/web/wa-lo-dojointro5/ http://www.ibm.com/developerworks/cn/views/web/libraryview.jsp?search_by=掌握+Dojo (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |