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iosxcodelayoutxib

iOS/Xib: Easiest way to show a button in the middle of different iPhone

In my iOS app, I just want to have a button located in the middle of screens of multiple devices (like iPhone 6, iPhone SE, iPad Air).

However, surprisingly, it seems not intuitive to do (at least not as Android) in XCode + Xib.

Following shows a trivial example of this problem where I put the button aligned to the middle: enter image description here

However, unless the "dimension" of the view is set identical to fit the installed device, there is no way to display the button in the middle.

Solution

  • Add horizontal and vertical center constraints as follows and it will always keep your button at center of any screen as shown in the image below enter image description here

    enter image description here