I have Icon with 1x,2x,3x image with navigation

Question

I have multi-image I add to bar item image but when I add it shows very big and I can't shrink them I don't know and I have costume back button but when I add it it shows far from the top left I use this code to add custom back but I add the bar item from storyboard if anyone can help.

let backImg: UIImage = UIImage(named: "back-btn")!
    let newBackButton = UIBarButtonItem(image: backImg, style: .plain, target: self, action: #selector(QuestionViewController.back(sender:)))
    self.navigationItem.leftBarButtonItem = newBackButton

Try to use PDF source image instead of using 1x , 2x , 3x . For ref:- https://stackoverflow.com/questions/35306051/using-pdfs-for-icon-images-in-xcode-7-2 — Jitendra, Feb 05 '19 at 10:39

score 3 · Answer 1 · answered Feb 05 '19 at 10:12

3

Navigation Bar and Toolbar Icon Size

Use the following sizes for guidance when preparing custom navigation bar and toolbar icons, but adjust as needed to create balance.

answered Feb 05 '19 at 10:12

AshokPolu

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i use this website to convert icon https://appicon.co/#image-sets so how to know it's size – Bilal Salam Feb 05 '19 at 11:06
I checked on the website, I could not find a way to specif the size of an icon, try to use a different site. – AshokPolu Feb 05 '19 at 11:10
but 1x,2x it's the same or what of the sizes you give it I'm new about this stuff – Bilal Salam Feb 05 '19 at 11:44
1x = 24x24, @2x = 48x48, @3x= 72x72 respective sizes. – AshokPolu Feb 05 '19 at 13:17

AtulParmar · Answer 2 · 2019-02-05T10:29:43.433

0

For navigation set icons in image assets (Assets.xcassets) 1X = 28x28 pixel, 2X = 56x56 pixel and 3X = 84x84 pixel icon size.

https://developer.apple.com/design/human-interface-guidelines/ios/icons-and-images/custom-icons/

edited Feb 05 '19 at 10:29

answered Feb 05 '19 at 10:05

AtulParmar

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I have Icon with 1x,2x,3x image with navigation

2 Answers2