why is my tabbar gray on first start

hi i have the following problem. s开发者_开发百科ince today when my app launches the tabbar is gray (image) !.

as soon as i change the view (tab a cell) and go back, the tabbar is black as it should be (image) !!

why could that be ? i do not have any idea.

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The only way i see that that could happen is that you have changed the color of the tabbar manually to gray using code but i guess with you thats not the case here. to solve the problem, try resetting the "bottom bar" attribute to "tabbar" hope it works out...

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alright I figured out what went wrong. I have a tab detection window in front of everything and as soon as I set the opacity down to 0% the tab bar was black again. thanks for your help