如何从任何其他视图控制器获取视图控制器的详细视图层次结构？

Question

我有一个UIViewController在运行时我添加视图到该视图控制器编程。现在我想从任何其他视图控制器打印该视图控制器的视图层次结构。我想知道哪个确切的视图添加。例如，如果我已经添加视图这样

UIView *main_view=[UiView alloc]initwithFrame:CGRectMake(20,20,34,80)]; 

然后我想它打印确切名称view.It只打印这一观点&帧的details.Please建议我的地址，我该怎么办呢？

Answer 1

你必须递归迭代子视图。

- (void)listSubviewsOfView:(UIView *)view { 

    // Get the subviews of the view 
    NSArray *subviews = [view subviews]; 

    // Return if there are no subviews 
    if ([subviews count] == 0) return; // COUNT CHECK LINE 

    for (UIView *subview in subviews) { 

     // Do what you want to do with the subview 
     NSLog(@"%@", subview); 

     // List the subviews of subview 
     [self listSubviewsOfView:subview]; 
    } 
} 

Answer 2

//You can set unique tag to each subview and then when you fetch view the compare view tag and if it match with the particule tag, that will be the view for which you are looking for. 


UIView *main_view=[UiView alloc]initwithFrame:CGRectMake(20,20,34,80)]; 
main_view.tag = 1000; 
[self.view addSubView:main_view]; 



// fetch view 
UIView *view = [self.view viewWithTag:1000]; 
if (view.tag == 1000){ 
    NSLog("This is view - main_view"); 
}