Listen for font reductions on iOS -

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this question has answer here:

when use uilabel, can set adjustsfontsizetofitwidth along appropriate scale factor.

how can notified when scales down? use-case when 1 label down-sizes, others around uniformity.

there no observation mechanism, you'd need calculate size required fit text in available space , use size on all.

the alternative use autolayout allow text wrap , doesn't need scale down.


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