Which platform(s) does your issue occur on?

iOS

Please provide the following version numbers that your issue occurs with:

• CLI: 3.0.0
• Cross-platform modules: 3.0.0
• Runtime(s): 3.0.0
• Plugin(s): -

Please tell us how to recreate the issue in as much detail as possible.

Similar to [iOS:ActionBar will be hidden after closeCallback of modal page #4141]

1. create default project with iOS platform(tns create..)
2. make 2nd page(by coping main-page.js) and add code for hiding actionBar to loaded() (page.actionBarHidden=true)
3. make a modal page and open it by tap event on "2nd" page
4. add topmost.navigate() to 1st page 's tap event handler
5. run and tap 1st page's button -> 2nd page's button -> Modal page's button

-> ActionBar on 2st page will be shown evenif actionBarHidden property is true

If I call showModal() from 1st page, seems no problem(ActionBar is automatically hidden on 1st(main) page on default). This only be happen after topmost.navigate() and ActionBar will be shown and hide it programmatically in loaded().