zoukankan      html  css  js  c++  java
  • ios appdelegate中获取当前显示页

    ios appdelegate中获取当前显示页

    网上有很多种方法,但是都不好使,找到了这个好使的,和大家分享下。

     1 -(UIViewController *)currentViewController
     2 {
     3     UIViewController * currVC = nil;
     4     UIViewController * Rootvc = self.window.rootViewController ;
     5     do {
     6         if ([Rootvc isKindOfClass:[UINavigationController class]]) {
     7             UINavigationController * nav = (UINavigationController *)Rootvc;
     8             UIViewController * v = [nav.viewControllers lastObject];
     9             currVC = v;
    10             Rootvc = v.presentedViewController;
    11             continue;
    12         }else if([Rootvc isKindOfClass:[UITabBarController class]]){
    13             UITabBarController * tabVC = (UITabBarController *)Rootvc;
    14             currVC = tabVC;
    15             Rootvc = [tabVC.viewControllers objectAtIndex:tabVC.selectedIndex];
    16             continue;
    17         }
    18 //        else if ([Rootvc isKindOfClass:[XXXCustom class]]){
    19 //            XXXCustom * tabVC = (XXXCustom *)Rootvc;
    20 //            currVC = tabVC;
    21 //            Rootvc = tabVC.selectedViewController;
    22 //            continue;
    23 //        }
    24     } while (Rootvc!=nil);
    25     
    26     
    27     return currVC;
    28 }
  • 相关阅读:
    T3java核心API基础类
    java字符编码
    Servlet 1
    T2java面向对象
    T1java语言基础
    Mac OS mysql数据库安装与初始化
    java多线程中注入Spring对象问题
    T4java核心API集合类
    The first day Teddy
    Spring第二节 注入依赖
  • 原文地址:https://www.cnblogs.com/codemakerhj/p/5610538.html
Copyright © 2011-2022 走看看