+(void)load{
MethodpushMethod =class_getInstanceMethod([selfclass],@selector(pushViewController:animated:));
MethodtoMethod =class_getInstanceMethod([selfclass],@selector(securePush:animated:));
if(!class_addMethod([selfclass],@selector(pushViewController:animated:),method_getImplementation(toMethod),method_getTypeEncoding(toMethod))) {
method_exchangeImplementations(pushMethod, toMethod);
}
}
-(void)securePush:(UIViewController*)viewController animated:(BOOL)isYesOrNo{
NSString* viewControllerStr = [NSStringstringWithFormat:@"%@",[viewControllerclass]];
NSLog(@"\nviewControllerStr:%@\n",viewControllerStr);
NSUserDefaults* defaults = [NSUserDefaultsstandardUserDefaults];
[defaultssetObject:viewControllerStrforKey:@"currentViewController"];
[defaultssynchronize];
NSString*topViewController =NSStringFromClass([self.topViewControllerclass]);
NSString*targetViewController =NSStringFromClass(viewController.class);
NSLog(@"topViewController:%@\ntargetViewController:%@",topViewController,targetViewController);
if([topViewControllerisEqualToString:targetViewController]) {
return;
}
[selfsecurePush:viewControlleranimated:isYesOrNo];
}
