Adaptive UI interface in iOS 8 through iphone 5 to iphone 6+ -

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i have created app runs on different devices, when set in interface builder, looks despite of constraints, labels or buttons positioned differently in different devices in simulator. i.e.: have interface designed, use background image view in interface builder, using iphone 5 size reference. in image designed field, when put label in it, looks in different position in simulated iphone 5 , iphone 6, though has been constrained in same way. doing wrong? thx help!!!

ps: assuming image view sizes proportional between iphone 5 , 6, should naturally have same aspect ratio hence label constraints

i think easiest way explain setting constraints between different view sizes autolayout watch how it's done. here's excellent video stanford university's cs193p ios development course explaining how works.

here you'll find resources course. can download full lectures itunesu.


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