TabBarItems and setting their image sizes?

Question

I am currently adding images to each one of my tab bar items. One image I like has a size that is much bigger then the area of the bar item. When I set the image of the bar item in the storyboard and run the emulator... the bar button with that image covers the entire screen.

Now I thought there was some automatic way of allowing the images to resize for each bar button. This is sadly not the case. Is there a way when the tab bar loads that I can resize the images within each tab bar?

Answer 1

You should prepare 3 images icons for each tab bar item (1x, 2x and 3x).

First create the 3x at 75w 75h pixels (maximum: 144 x 96) and save it as [email protected].

Then resize it to 50w 50h pixels (maximum: 96 x 64) and save it as [email protected].

Finally resize it to 25w 25h pixels (maximum: 48 x 32) and save it as iconTab0.png.

Now all you need is to select those 3 images at your finder and drag them to your image assets.

Human Interface Guidelines