problems of centering (vertically) a button on the screen
Hello.
I have a blackberry 10 cascades app with the code below.
How could I get the button to fill the entire screen? I would have thought the following would do the trick, but it doesn't. The button expands horizontally to fill the width of the parent, but vertically the buttn just at the top of the screen the same as if I had not called setVerticalAlignment() at all.
Any ideas? Maybe it's a bug?
Thank you very much in advance.
//-----------------------------------------
Page * Pg = new Page();
Button * butt = new Button();
Welding end to end-> setText ("well");
Welding end-to-end-> setHorizontalAlignment (HorizontalAlignment::Fill);
Welding end-to-end-> setVerticalAlignment (VerticalAlignment::Fill);
PG-> setContent (Butt);
Application::instance()-> setScene (Pg);
I really expect that this works only inside a container with a DockLayout. I don't know what pages in terms of layout, but I'm going to guess that they do nothing, which would mean that their single 'content' component would not adjusted at all position and sat at 0,0 or the upper left corner.
It looks like you to experiment a little... in practice, I don't think that someone never put a single item non-conteneur on a Page, but generally always a container of other stuff in it. The default value for a container is StackLayout, so you will need to change to DockLayout and default alignment for stuff is Left and Top, so it should work with your Center for vertical alignment.
Tags: BlackBerry Developers
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