Singleton/sorta/sharedInstance

webviewpopup.m

+(WebViewPopup*)sharedWebViewPopup
{
    static dispatch_once_t once;
    static WebViewPopup* sharedWebViewPopup;
    dispatch_once(&once, ^{
        sharedWebViewPopup = [[WebViewPopup alloc] init];
    });
    return sharedWebViewPopup;
}