iPhone 6 artboard size is 375 x 667 in Adobe Xd.
iPhone 6 rendered pixels are 750 x 1334 px.
iPhone 6 navigation bar icons size must be about 44 x 44 px.
My problem is that when i use Adobe Xd artboard for iPhone 6, i can't use 44 x 44 px icons as they become too big for the layout.
I have to downscale the icons 2 times to 22 x 22 px.
Why the iPhone 6 artboard size is not 750 x 1334 px by default?
How should I export the icons for @1x, @2x, @3x?
Great questions here. We use a virtual pixel scenario, which means that you can choose to design at 1x, 2x, or 3x. In this case, we start with 1x, and when you export, you can choose iOS to export at 1x, 2x, and 3x.
When you select your icon for export, you'll want to select iOS from the radial button, and then leave the Designed at drop-down to 1x. This means that you're telling us that you've designed at 1x and want 2x and 3x versions of your icon as well. When you export, you'll export all three of them at the same time.
Hope that gets you started!