application:getDeviceWidth/getDeviceHeight return wrong on iPhone 6S and iPhone 6S Plus

Comments

• oleg Member

  May 2020

  Maybe it affects?
  
  It is best to use this command to determine the actual screen sizes:

  minX, minY, maxX, maxY = application:getLogicalBounds()

  

  

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• aydada Member

  May 2020 edited May 2020

  Thank you @oleg, you're right!
  
  Could you please explain why that option affects to the result? What does it mean? Why it is scaled based on the 320x568 (which is from iPhone 5)?
  
  PS: After turn off Retina Display in Gideros Editor, I get 320x568 on both iPhone 6s and 6s plus. I don't know what is the logic behind this, but it should be (in points) 375 × 667 for iPhone 6S and 414 × 736 for iPhone 6S Plus.

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• oleg Member

  May 2020 edited May 2020

  I don't have an iPhone and I don't know what you're talking about
  Maybe these 2 articles will help you
  http://docs.giderosmobile.com/automatic_image_resolution.html
  http://docs.giderosmobile.com/automatic_screen_scaling.html
  
  ps/You may need to compile the game to get the exact settings.

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• hgy29 Maintainer

  May 2020

  I think your issue is that iOS UI don't use pixels, but some logical unit choosen in such a way that it is consistent across all devices. I don't remember exactly what it was all about, but it would be good if getDeviceWidth()/Height() could return the true screen size in pixels

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• hgy29 Maintainer

  May 2020

  Looking at Gideros code, it seems that it relies on the "scale" factor, while it should use the "nativeScale" if available: https://developer.apple.com/library/archive/documentation/DeviceInformation/Reference/iOSDeviceCompatibility/Displays/Displays.html

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• aydada Member

  May 2020

  hgy29 said:

  Looking at Gideros code, it seems that it relies on the "scale" factor, while it should use the "nativeScale" if available

  Thanks for your info.
  That what I referenced to, according to that we should have:
  + iPhone 6s: 375 × 667(points) and 750x1334 (pixels) => Gideros gives me: 640×1136 (pixels)
  + iPhone 6s plus: 414 × 736(points) and 1242 × 2208 (pixels) => Gideros gives me: 960x1704 (pixels).
  
  I don't know what is the logic behind this.

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