Orientation Support Mobile

[Mike Kerner]

Thanks, Ralph, now I have something else to try, today!

On Mon, Sep 8, 2014 at 1:39 AM, Ralph DiMola <rdimolad at evergreeninfo.net>
wrote:

> Mobile Orientation change cookbook:
> 1. Device is flipped.
> 2. The resizestack message is sent before the card is rendered
> (orientationchanged message is sent after).
> 2. In the resizestack handler reposition your controls.
> 3. During this message no screen updates are done.
> 4. The user will see the screen flip with the previous layout.
> 5. When the resizestack message completes the new layout is rendered.
> 6. Pass the resizestack message after repositioning your controls or
> strange things will occur.
>
> This works equally well with both Android and iOS.
>
> Now I don't know how this works if you're changing cards as I reposition
> controls on the same card. I would guess opening a new card in the
> resizestack message will yield similar results.  I will try it when I get
> back.
>
> Ralph DiMola
> IT Director
> Evergreen Information Services
> rdimola at evergreeninfo.net
>
>
>
>
> <div>-------- Original message --------</div><div>From: Mike Kerner <
> MikeKerner at roadrunner.com> </div><div>Date:09/07/2014  20:38  (GMT-08:00)
> </div><div>To: How to use LiveCode <use-livecode at lists.runrev.com>
> </div><div>Subject: Re: Orientation Support Mobile </div><div>
> </div>Well, for starters:
> 1) You can't seem to force LC to render a card in one orientation or the
> other and then understand what you're forcing it to do.  There doesn't seem
> to be a command to do it.  MobileSetAllowedOrientations doesn't help.  So
> if you support P and L, but certain cards are one way and certain the
> other, and the app opens in the one you didn't want, you have an issue.
> Let's say you do mobileSetAllowedOrientations to portrait, and you flip
> the device sideways.  When you open the app, the app will render in
> portrait, but it will think that its width and height are for landscape,
> which makes rendering a bit challenging.
> 2) How do you lay out your cards for P and L?  You could have custom
> properties, (do it the old MG way, before MG stopped supporting rotating),
> but that creates a layout issue, in that you have to build the properties
> for as many objects as you have on a card, and then deal with rearranging
> the layout when the orientation changes.
> 3) If you try to overcome #2 with a substack for P and a substack for L,
> then you have an event issue, because going from card 1 of substack P to
> card 2 of substack L isn't going to send a closeCard event to card 1 of
> substack P, which means that if you were using closeCard to dispose of your
> native controls...you have to do something else, and the transition isn't
> smooth.
> 4) There are issues with getting LC to render objects consistently when
> switching orientations, which I would imagine is why John stopped
> supporting orientation switching in MG.  Sometimes, when you rotate the
> device, not everything goes where one might hope it would.  I still haven't
> gotten to the bottom of that one.
>
>
>
> On Sun, Sep 7, 2014 at 10:04 PM, Colin Holgate <coiin at verizon.net> wrote:
>
> > I have used landscape and portrait in the same app outside of LiveCode,
> > and certainly ran into issues. I think that in LiveCode you would want to
> > enable all orientations, then listen for the orientationChanged message.
> > Then, in theory, you could react accordingly.
> >
> > Can you go into more detail about issues you’ve hit?
> >
> >
> >
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>
>
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-- 
On the first day, God created the heavens and the Earth
On the second day, God created the oceans.
On the third day, God put the animals on hold for a few hours,
   and did a little diving.
And God said, "This is good."