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Developer
Developer
Posts: 44
Registered: ‎05-17-2012
My Device: Playbook, Dev Alpha A
My Carrier: O2
Accepted Solution

How to check top of page stack of NavigationPane in QML?

[ Edited ]

Hi,

I have a NavigationPane and in an event handler (a javascript function connected to a slot to handle network responses) I want to pop the top page from its stack. But only if it is still there because it could be close by the user using the back button on it.

 

If I just do this:

 

myNavPane.pop();

 

and the top page has been closed by the user this function causes a blank white page to appear on the top. 

 

So I thought I could do something like this:

 

if(myNavPane.top.id == "idOfSomePage")
    myNavPane.pop();

But this does not work.

 

Is there a way to do this?

 

Thanks

Developer
Posts: 1,524
Registered: ‎12-18-2012
My Device: Z30, Z10 LE, DevAlpha C, PlayBook

Re: How to check top of page stack of NavigationPane in QML?

[ Edited ]

Hi,
If you know the page index in stack, just check that myNavPane.count() is equal to index+1. This has side effects.

 

Could you try to replace the string with the actual id of the page?

        if (myNavPane.top == idOfPageBeingPopped)

 


Andrey Fidrya, @zmeyc on twitter
Developer
Developer
Posts: 44
Registered: ‎05-17-2012
My Device: Playbook, Dev Alpha A
My Carrier: O2

Re: How to check top of page stack of NavigationPane in QML?

Thanks but no this doesn't work either. 

Highlighted
Developer
Posts: 54
Registered: ‎05-23-2012
My Device: Developer
My Carrier: Developer

Re: How to check top of page stack of NavigationPane in QML?

This works for me:

 

if(nav.top.objectName == "myObjectName")

{

...

}

 

And then just:

 

Page

{

      objectName: "myObjectName"

}

----
I know exactly where the problem *might* be.
Developer
Developer
Posts: 44
Registered: ‎05-17-2012
My Device: Playbook, Dev Alpha A
My Carrier: O2

Re: How to check top of page stack of NavigationPane in QML?

Thanks. This works for me too.