如何检查UIViewController是否属于目标c中的特定子类？

Question

我希望能够检查UIViewController的类型,看它是否是这样的某种类型

c代码

if (typeof(instance1) == customUIViewController) 
{
  customUIViewController test = (customViewController)instance1;

  // do more stuff
}

Answer 1

该isKindOfClass:方法指示对象是给定类的实例还是该类的子类的实例.

if ([instance1 isKindOfClass:[CustomUIViewController class]]) {
    // code
}

如果要检查对象是否是给定类的实例(但不是该类的子类的实例),请isMemberOfClass:改用.

Answer 2

var someVC: UIViewController

if someVC is MyCustomVC {
    //code
}

Answer 3

Swift版本:

var someVC: UIViewController

if someVC.isKindOfClass(MyCustomVC) {
    //code
}

Answer 4

尝试:

[vc isKindOfClass:[CustomViewController class]];

Answer 5

除了这个答案之外，我只想补充一点，如果您想在switch 语句 （在 Swift 中）中查看视图控制器是否属于某种类型，您可以这样做：

var someVC: UIViewController?

switch someVC {
    case is ViewController01: break
    case is ViewController02: break
    case is ViewController03: break
    default: break
}