ui.NavigationView error?

[cg-mag]

I use this code.

import ui

def button_tapped(sender):
    v = ui.View()
    v.background_color = 'green'
    v.name = 'Pushed View'
    sender.navigation_view.push_view(v)

root_view = ui.View()
root_view.background_color = 'white'
root_view.name = 'Root View'

button = ui.Button(title='Tap me')
button.action = button_tapped
button.bring_to_front()
button.background_color = 'gray'
root_view.add_subview(button)
nav_view = ui.NavigationView(root_view)
nav_view.present()

When I rotate my Iphone the button is cutting.
https://pp.vk.me/c621928/v621928381/41dd5/LiEgFgmEZBo.jpg
How to fix it? Thanks..

And I have another questions. Can I run some script when user pressed the button 'back' at the navigation view? Thanks.

[cg-mag]

Any comment?

[Gerzer]

Patience is a virtue! Does the button partially appear only in landscape? Or does the problem occur in portrait as well?

[cg-mag]

@Gerzer said:

Patience is a virtue! Does the button partially appear only in landscape? Or does the problem occur in portrait as well?

Start program at portrait. When rotate phone button was partially apearing.

[JonB]

Experiment with the flex attribute of the button, and perhaps root view and your Navigation view. the nav and rootview probably should be 'wh'.

I will point out that you have not actually set the frame of the button, or root view for that matter, which may be part of the issue.

[JonB]

Re detecting the back button, here is a method, not ideal but it works:

https://forum.omz-software.com/topic/1324/navigationview-on-screen

[cg-mag]

@JonB , Thank you!! I'll try.