ios - My image in ImageView glitches for a second -



ios - My image in ImageView glitches for a second -

i'm using xcode 5.1.1

when click button viewcontroller 1 viewcontroller 2, , when vc 1 appears imageview glitches 1 sec before going normal. tried programming segue performseguewithidentifier didn't solve issue. tried using modal's cross dissolve transition, cover vertical , partial cross don't help glitch either. flip horizontal doesn't have glitch wouldn't app. i'm using unwind segue go vc 2 vc 1 vc 1 glitching 1 second. tried regular modal creates worse problems. do?

well should admit "the uiimageview" quite generic assumption figure out issue is. pure diagnosis purpose i'd next checks:

check size of uiimage you're assigning uiimageview. if uiimage big higher resolution might cause rendering problem in animations.

to have proper check of what's going on might want run instruments adding "time profiler" tab. performing either pop or dismiss of vc2 should able figure out glitch comes from.

i know it's quite generic reply little info provided don't think might able help more that.

hope helps.

ios objective-c iphone uiviewcontroller

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