isZoomed() Not working about devicekit

[kiwo12345]

Solution:

if(UIScreen.main.bounds.size.height == 667.0 && UIScreen.main.nativeScale < UIScreen.main.scale){
            print("iphone 6 plus")
        } else {
            print("none zoomed 6 plus")
        }

        if (UIScreen.main.bounds.size.height == 568.0 && UIScreen.main.nativeScale > UIScreen.main.scale) {
            print("zoomed iphone 6")
        } else {
            print("none zoomed")
        }

[dennisweissmann]

Hi @kiwo12345 , thank you so much for taking the time to report and actually finding a workaround for the issue :) 💯 However, I'm really not keen on hardcoding display heights :( Do you by any chance own an iPhone 5, SE, 6 or 7 (not the Plus version)? I only have the 6 Plus, 6s and 7 Plus (and an iPad Pro 12.9") for me to test I found the following:

print(UIScreen.main.nativeBounds)
print(UIScreen.main.bounds)
print(UIScreen.main.scale)
print(UIScreen.main.nativeScale)

iPhone 6/7 Plus not zoomed:

(0.0, 0.0, 1080.0, 1920.0)
(0.0, 0.0, 414.0, 736.0)
3.0
2.60869565217391

iPhone 6/7 Plus zoomed:

(0.0, 0.0, 1080.0, 1920.0)
(0.0, 0.0, 375.0, 667.0)
3.0
2.88

iPhone 6s not zoomed:

(0.0, 0.0, 750.0, 1334.0)
(0.0, 0.0, 375.0, 667.0)
2.0
2.0

iPhone 6s zoomed:

(0.0, 0.0, 750.0, 1334.0)
(0.0, 0.0, 320.0, 568.0)
2.0
2.34375

iPad Pro not zoomed:

(0.0, 0.0, 2048.0, 2732.0)
(0.0, 0.0, 1024.0, 1366.0)
2.0
2.0

iPad Pro zoomed:

(0.0, 0.0, 2048.0, 2732.0)
(0.0, 0.0, 768.0, 1024.0)
2.0
2.66666666666667

So it seems that for 2x devices we can say that if the native scale is larger than the current scale, the device is zoomed (which is what the current code in the framework does).
However, on 3x devices we need to differentiate. I'm currently thinking about something along those lines:

Pseudocode:

if Int(UIScreen.main.scale.rounded()) == 3 {
  // Plus-sized
  return UIScreen.main.nativeScale > 2.7
} else {
  return UIScreen.main.nativeScale > UIScreen.main.scale
}

which also includes a quite arbitrary hardcoded magic number :( I don't know what's better tbh, quick research online showed that both methods (yours and mine) are used.

[kiwo12345]

Hey @dennisweissmann I think I have a 5s and 5 SE that I can check if you want to. But yeah I agree, not the best to have a hardcoded value : /

[vvit]

Hi guys, it seems the line
return UIScreen.main.nativeScale > 2.7
no longer works on the Simulator iPhone6/8 12.4. Since the UIScreen.main.nativeScale is always 3 for non-zoomed display.
Does it support simulators?

I had to modify it to:
return UIScreen.main.nativeScale > 2.7 && UIScreen.main.nativeScale < 3

I can create a PR if needed. Thanks.
@dennisweissmann

[Zandor300]

@vvit
Feel free to create a pull request for this issue.

(Dennis isn't working on this project anymore and he has handed it off to @denisenepraunig)

[vvit]

I see, thanks.
The problem is I need to check it on a real 'Plus' device which I don't have.

[Zandor300]

@vvit I will check on my old 6s Plus for you when you’ve prepared the PR. ;)

[vvit]

@Zandor300 thanks, pls check #195