/** * 返回到指定页面 */

-(void)popToViewController:(Class )showController isShow:(BOOL)isshow {    NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];    UIViewController *currentController = [navigationArray lastObject];    for (NSInteger i = navigationArray.count-1 ;i >= 0 ;i--) {        UIViewController *vc = [navigationArray objectAtIndex:i];        if (![vc isKindOfClass:[showController class]]) {            [navigationArray removeObject:vc];        }        else{          //是否显示当前页面         if (isshow) {            [navigationArray addObject:currentController];         }        self.navigationController.viewControllers = navigationArray;        return;       }     }}复制代码