Getting Accurate iPhone Screen Resolutions

For those interested, I can now report the values the iPhone X returns.

Before a couple of Event.RESIZE events, the stage.stageWidth and stage,stageHeight return 1920,3408

After those initial Event.RESIZE events, they return 1125,2436

Capabilities.screenResolutionX/Y returns 1125,2436 from the very start.

It took an included default image named Default-375w-812h@3x.png to trigger the app to use the full resolution. Otherwise, and with older apps, it just appears in a box centered on the screen. This is actually great, as if you have ads at the top, they won't be blocked by the "notch" and violate AdMob's TOS. So now I can take my time to update my apps for the iPhone X instead of rushing it.

Thanks Colin and Flipline! Colin -- I already use those methods for placements, but sometimes you need to have the real screen numbers. Examples: Ad placements in ANEs, CameraUI CameraRollBrowseOptions placements, and of course the identification of specific phone models in order to enable/disable features and such.

Flipline - it worked and I now get correct results. Plus, I now found this page, which gives me a list of launch images to include:

http://blogs.adobe.com/airodynamics/2015/03/09/launch-images-on-ios-with-adobe-air/

The problem now is to worry about future launch images. For instance, what size image and specific name will I need for the launch image of the iPhone X? It is critical I find out in the next week or two. I'll have my hands on one on Friday, but that may not help if I can't figure out what to name the launch image. Default-375w-812h@3x~iphone.png is one guess. But if that is wrong...?

I went back and checked my memory. Here's some timeline code to make a button hug the left of the screen, for an original stage size of 1024x768. 'goleft' is the instant's name:

var realheight = Math.min(Capabilities.screenResolutionX, Capabilities.screenResolutionY)

var realwidth = Math.max(Capabilities.screenResolutionX, Capabilities.screenResolutionY)

var vr = realwidth / realheight;

var ew = 768 * vr;

var gap = Math.floor((ew - 1024) / 2);

goleft.x = 1 - gap;

Happy to see you posting AIR questions!

There is an initial resize event that you ought to be able to trust. All my apps were made in Flash Pro, and I just used the normal stage scale modes, so generally I don't have any problems. There are exceptions, like Kindle for example, where the button bar comes and goes in a way that is hard to deal with. I just place things in a way that can cope with that unpredictability.

The way I work with stage scale modes, and for example getting a button to hug the edge of the screen, is with this logic:

use the capabilities to figure out the ratio of the device

If I'm using showAll I know that my landscape app will have the stage filling the width of the device

I know the Y position of the button on my original stage (say 1024x768)

I move the button to real width/1024 * originalY*real height

I didn't double check my memory, but even if what I wrote as wrong, you're a mathematician, you should be able to see what I'm getting at.