Orientation Support Mobile

[Ralph DiMola]

Mike,
When you are processing the resizestack message you can determine the orientation using mobileOrientation(). Or better use my PorL() function(included in the simulcast materials) so you can test in the IDE and know what it will look like on the mobile device.

Ralph DiMola
IT Director
Evergreen Information Services
rdimola at evergreeninfo.net


-----Original Message-----
From: use-livecode [mailto:use-livecode-bounces at lists.runrev.com] On Behalf Of Mike Kerner
Sent: Monday, September 08, 2014 9:48 AM
To: How to use LiveCode
Subject: Re: Orientation Support Mobile

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."
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