Value of isBannerLoaded Property of a ADBannerView

who is th开发者_运维知识库e responsible for setting the value of isBannerLoaded Property of a ADBannerView

It is set by the ADBannerView itself when it has downloaded a banner. It's a read-only property, so you can't change it yourself anyway.

From the iOS SDK documentation:

A Boolean value that states whether the banner view has downloaded an advertisement. (read-only)

@property(nonatomic, readonly, getter=isBannerLoaded) BOOL bannerLoaded

Banner views automatically download new advertisements in the background. This property returns YES if an advertisement is loaded; NO otherwise.

http://developer.apple.com/library/ios/documentation/userexperience/Reference/ADBannerView_Ref/Reference/Reference.html