uiView获取指定子view

判断对象类型

-(BOOL) isKindOfClass: classObj判断是否是这个类或者这个类的子类的实例

-(BOOL) isMemberOfClass: classObj 判断是否是这个类的实例

isKindOfClass和isMemberOfClass 的区别//转自

iOS_Doman

 

判断对象类型

-(BOOL) isKindOfClass: classObj判断是否是这个类或者这个类的子类的实例

-(BOOL) isMemberOfClass: classObj 判断是否是这个类的实例

测试实例:

#import <Foundation/Foundation.h>  

@interface Person : NSObject
{
    NSString *name;
}
-(void)setName:(NSString*)n;  

@end
/////////
#import "Person.h"  

@implementation Person
-(void)setName:(NSString *)n
{
    name = n;
}  

@end
///////////
#import "Person.h"  

@interface Teacher : Person  

-(void)teach;  

@end
///////////////
#import "Teacher.h"  

@implementation Teacher
-(void)teach
{
    NSLog(@"我教数学");
}
@end
////////////
Person *person = [[Person alloc] init];
   Teacher *teacher = [[Teacher alloc] init];  

   //YES
   if ([teacher isMemberOfClass:[Teacher class]]) {
        NSLog(@"teacher Teacher类的成员");
   }
   //NO
   if ([teacher isMemberOfClass:[Person class]]) {
       NSLog(@"teacher Person类的成员");
   }
   //NO
   if ([teacher isMemberOfClass:[NSObject class]]) {
       NSLog(@"teacher NSObject类的成员");
   }
////////////
Person *person = [[Person alloc] init];
Teacher *teacher = [[Teacher alloc] init];  

//YES
if ([teacher isKindOfClass:[Teacher class]]) {
    NSLog(@"teacher 是 Teacher类或Teacher的子类");
}
//YES
if ([teacher isKindOfClass:[Person class]]) {
    NSLog(@"teacher 是 Person类或Person的子类");
}
//YES
if ([teacher isKindOfClass:[NSObject class]]) {
    NSLog(@"teacher 是 NSObject类或NSObject的子类");
}