iphone - IOS 7 link between Xcode and Xamarin not working correctly -

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i started new project app. app support ios 7 , started create first view controller in new xcode. when run app xamarin studio(i'm on beta channel) app launches without errors.

when app loaded on simulator / on device ui differed design in xcode.

xcode:

enter image description here

ios 7 simulator / device: enter image description here

i have note first time i'm using ios 7 in combination xamarin studio. noticed if create push segue in xcode on button not work. looks button disabled in simulator / on device reason.

it looks it's caused view background color, , alpha (transparency) property of background , light-blue parts.

so, in xcode ib check background color (the 1 set, or 1 default), put value (say white), , make sure alpha set 1


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