如何检查rootViewController是否属于特定类？

Question

我想知道导航控制器堆栈中的rootViewController是否属于特定类。怎么做这样的事情？

求助，

的Stephane

Answer 1

你去哥们

id rootController = [self.navigationController rootViewController];
if([rootController isKindOfClass:[YourDesiredController class]]){
  //do something
 }

Answer 2

导航控制器根视图控制器是

id rootVC = [[navigationController viewControllers] objectAtIndex:0];

然后查看 rootVC 的类，

if ([rootVC isKindOfClass:[YourClass class]]) {

Answer 3

您可以通过以下方式查看课程：

if ([rootViewController isKindOfClass:[YourClass class]]){

}else if ([rootViewController isKindOfClass:[AnotherClass class]]){

}else{
}

Answer 4

也许你可以使用方法isKindOfClass

[rootViewController isKindOfClass: [RootViewController class]];

Answer 5

如何查看当前的rootViewController并在if statement

中使用它

// Get your current rootViewController
NSLog(@"My current rootViewController is: %@", [[[UIApplication sharedApplication].delegate.window.rootViewController class]);

// Use in an if statement
UIViewController *rootViewController = [UIApplication sharedApplication].delegate.window.rootViewController;
if ([rootViewController isKindOfClass:[MyViewController class]])
{
    NSLog(@"Your rootViewController is MyViewController!!");
}