title: IOS 7 launch image, displaying black screen on device ONLY
body: <p>I have checked all the questions /answers related to this issue at least at stakoverflow .but without any success ,so far my issue is - I have created a new app - target IOS 7 and I have added my launchimage and my appIcon  in the image.xcassets folder .
  when I launch my app on simulator the launchimae is showing perfectly without any issue but when I run the app on my iphone (iphone 5 , IOS 7.1) a black screen is showing instead of the launchimage 
  any help or suggestions will be appriciated ?
  cheers,</p>