I was always, always using Adobe Illustrator to make and export icons for iOS and Android until i knew about this "problem."
Scenario: Whenever i export icons via AI (currently using CC 2019 though i had it updated from cc2018 because i thought it would solve the issue), i use Asset Export panel/window. default configuration when exporting to iOS (1x,2x,3x,svg)
"Problem" appears when i preview the exported icons on my mac. i noticed that when opening icons from the Preview app, the @1x and @2x are the exact same icon size, icon dimensions only changes when @3x. However, when opening icons via quick preview (tapping spacebar to open), the icon dimensions does change. screenshot attached.
I've tried to export the icons via AI on windows, same situation happens.
However, trying to narrow down the issue i used different apps to export icons. interestingly they turn out "correct" when opening via preview app, and quick preview (spacebar).
i noticed this issue because our developer noticed that the icons were too small to be useable. hence our confusion.
Maybe i'm just missing something that i'm ignorant about or maybe you guys can help me out. any updates would be greatly appreciated. Thank you very much!