iOS获取某类的属性/方法/成员变量/协议列表

需要用到：

#import <objc/runtime.h>

在这里我们随便找一个控制器

@interface ViewController ()

@property(nonatomic,strong)NSString *name;

@end

//获取属性列表

    unsigned int number;
    objc_property_t *propertiList = class_copyPropertyList([self class], &number);
    for (unsigned int i = 0; i < number; i++) {
        const char *propertyName = property_getName(propertiList[i]);
        NSLog(@"属性名称----%@",[NSString stringWithUTF8String:propertyName]);
    }
    free(propertiList);

属性列表

//获取方法列表

    unsigned int methodCount;
    Method *method = class_copyMethodList([self class], &methodCount);
    for (unsigned int i = 0; i < methodCount; i++) {
        Method me = method[i];
        NSLog(@"方法名称----%@",NSStringFromSelector(method_getName(me)));
    }
    free(method);

方法列表

//获取成员变量列表

    unsigned int ivarCount;
    Ivar *ivar = class_copyIvarList([self class], &ivarCount);
    for (NSInteger index = 0; index < ivarCount; index++) {
        const char *ivarName = ivar_getName(ivar[index]);
        NSLog(@"成员变量名称----%@",[NSString stringWithUTF8String:ivarName]);
    }
    free(ivar);

成员变量

//获取协议列表

屏幕快照 2018-12-18 下午4.15.40.png

首先我们先遵守协议
@interface ViewController ()<NSCoding>

    unsigned int protocalCount;
    //获取协议列表
    __unsafe_unretained Protocol **protocolList = class_copyProtocolList([self class], &protocalCount);
    for (unsigned int i = 0; i< protocalCount; i++) {
        Protocol *myProtocal = protocolList[i];
        const char *protocolName = protocol_getName(myProtocal);
        NSLog(@"协议名称----%@", [NSString stringWithUTF8String:protocolName]);
    }
    free(protocolList);

协议列表