Incompatible pointer types sending 'Class' to parameter of type 'id<UIActionSheetDelegate>'

问题

I am receiving the warning Incompatible pointer types sending 'Class' to parameter of type 'id' in the line "delegate:self" below:

    + (SHKActionSheet *)actionSheetForType:(SHKShareType)type
{
    SHKActionSheet *as = [[SHKActionSheet alloc] initWithTitle:SHKLocalizedString(@"Share")
                                                      delegate:self
                                             cancelButtonTitle:nil
                                        destructiveButtonTitle:nil
                                             otherButtonTitles:nil];
    as.item = [[[SHKItem alloc] init] autorelease];
    as.item.shareType = type;

This warning is in ShareKit, if anyone knows how to fix it, please let me know!

回答1:

You are trying to pass self parameter in a static method. It is not right as there is no particular instance of this object in static methods. Make it either non static method or pass some instance of this class as delegate.

回答2:

When working with a static Class, you can manually get ride of the warning:

delegate:(id<UIActionSheetDelegate>)self

回答3:

Try using nil instead of self (xcode 4.2 iOS 5).

来源：https://stackoverflow.com/questions/6990783/incompatible-pointer-types-sending-class-to-parameter-of-type-iduiactionshee