5 Answers

• id be careful with methods not in the doc (mostly for fear of deprecation or not supported). when creating a window you can pass in the navBarHidden:true prop.

  var win = Ti.UI.createWindow({
     fullscreen:false,
     navBarHidden:true,
     backgroundColor: '#fff'
  });
  

• Try this

  win1.hideNavBar()
  

• You can try add every variable related to your window with "navBarHidden : true" attribute, works for me.
  Example:

  var myWindow = Titanium.UI.createWindow({
      navBarHidden : true,
  });
  
  var myTab = Titanium.UI.createTab({
      navBarHidden : true,
      window : myWindow
  });
  
  var myTabGroup = Titanium.UI.createTabGroup({
      navBarHidden : true,
  });
  myTabGroup.addTab(myTab);
  myTabGroup.open({fullscreen : true});
  

• hey tamas, where did you find this answer in the documentation?

• Hi
  I use a lot the kitchensink examples, and the git sources.

  It might be difficult in the beginning but after a while you get used to and even start learning objC ( for free :D )