add <afx-slider>

src/packages/DummyApp/main.coffee

@@ -104,7 +104,9 @@ class DummyApp extends this.OS.GUI.BaseApplication
             {text:"file2.cpp"}
         ]
         tabs.set "items", tabdatas 
-
+        (@find "slider").set "max", 200
+        (@find "slider").set "onchange", (d) ->
+            console.log d
         @scheme.set "apptitle", "AntOS feature showcase"
 
         @scheme.contextmenuHandler = (e, m) ->

src/packages/DummyApp/scheme.html

@@ -4,6 +4,8 @@
         <afx-vbox>
             <afx-tab-bar data-height = "50" data-id="mytabs" closable = true></afx-tab-bar>
             <afx-tree-view data-id="mytree"> </afx-tree-view>
+            <afx-slider data-id="slider" data-height="20" value="30"></afx-slider>
+            <div data-height="10"></div>
         </afx-vbox>
         <afx-resizer data-width = "5" ></afx-resizer>
         <afx-vbox>