xml - Roku: How do I open a LabelList on a new screen? -


from brightscript, how open following labellist on new screen (not main screen/scene)?

<?xml version = "1.0" encoding = "utf-8" ?>  <!--********** copyright 2016 roku corp.  rights reserved. **********-->  <component name = "labellistexample" extends = "group" initialfocus = "examplelabellist" >    <script type = "text/brightscript" >      <![cdata[      sub init()       m.top.backgrounduri = "pkg:/images/rsgde_bg_hd.jpg"        example = m.top.findnode("examplelabellist")        examplerect = example.boundingrect()       centerx = (1280 - examplerect.width) / 2       centery = (720 - examplerect.height) / 2       example.translation = [ centerx, centery ]        m.top.setfocus(true)     end sub      ]]>    </script>    <children >      <labellist id = "examplelabellist" >        <contentnode role = "content" >         <contentnode title = "renderable nodes" />         <contentnode title = "z-order/parent-child" />         <contentnode title = "animations" />         <contentnode title = "events , observers" />         <contentnode title = "on demand example" />       </contentnode>      </labellist>    </children>  </component>

i think need understand scenegraph api little better understand how this. in main.brs file, roku screen created screen = createobject("rosgscreen") , screen scene created scene = screen.createscene("scene") . of custom components need added xml file of scene. in components folder create 2 separate files labellistexample.brs , labellistexample.xml. in labellistexample.brs add 

sub init()       m.top.backgrounduri = "pkg:/images/rsgde_bg_hd.jpg"        example = m.top.findnode("examplelabellist")        examplerect = example.boundingrect()       centerx = (1280 - examplerect.width) / 2       centery = (720 - examplerect.height) / 2       example.translation = [ centerx, centery ]        m.top.setfocus(true)  end sub

in labellistexample.xml add this:

    <?xml version="1.0" encoding="utf-8"?>     <component name = "labellistexample" extends = "group" initialfocus = "examplelabellist" >     <script type="text/brightscript" uri="pkg:/components/labellistexample.brs" />     <children >          <labellist id = "examplelabellist" >            <contentnode role = "content" >             <contentnode title = "renderable nodes" />             <contentnode title = "z-order/parent-child" />             <contentnode title = "animations" />             <contentnode title = "events , observers" />             <contentnode title = "on demand example" />           </contentnode>          </labellist>        </children>     </component>

now in scene.xml file child should add this:

<poster      id="justposter"      translation="[0, 0]"      width="1280"      height="720"    />  <group id="customcomponentview" visible="false">     <examplelabellist        id="customcomponent"     /> </group>  <group id="defaultview" visible= "true">   <label id="justlabel"         color="0xffffff"         translation="[50, 300]"         wrap="true"         width="1200"         horizalign="center"         text="hide me if can"         opacity="0.5"         font = "font:mediumboldsystemfont"   />       </group>

so big question is: how go defaultview consist label customcomponentview have label list?simple really, need hide 1 , show other. need add onkeyevent() function in scene.brs file (in scene script if doing .xml). in scene init() initialize views , components first :

m.defaultview = m.top.findnode(defaultview) m.customcomponentview = m.top.findnode(customcomponentview) m.labellist = m.top.findnode(customcomponent) m.label = m.top.findnode(justlabel)

in onkeyevent() function when button "ok" pressed on remote, can control view visible with:

m.defaultview.visible = false m.customcomponentview = true

you need set focus when customcomponentview becomes visible with:

m.labellist.setfocus(true)

hope can continue this. check roku documentation find out more onkeyevent() function.


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