#import "NSObject+PropertyList.h"
#import <objc/runtime.h>
@implementation NSObject (PropertyList)

// 獲取屬性列表 在字典轉(zhuǎn)模型的時候非常有用
+ (instancetype)objWithDict:(NSDictionary *)dict {
    id instance = [[self alloc]init];
    
    [[self propertys] enumerateObjectsUsingBlock:^(NSString *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        id value = dict[obj];
        if (value) {
            // 設(shè)置屬性值
            [instance setValue:value forKey:obj];
        }
    }];
    return instance;
}

// copy, create,retain
+ (NSArray *)propertys {
    unsigned int count;// 表示屬性個數(shù)
    // 獲取到所有的屬性
    objc_property_t *list = class_copyPropertyList(self, &count); // 數(shù)組
    NSMutableArray *data = [NSMutableArray array];
    for (int i = 0; i < count; ++i) {
        // 取出每一個屬性
        objc_property_t key = list[i];
        // 轉(zhuǎn)成字符串
        NSString *propertyName = [[NSString alloc]initWithCString:property_getName(key) encoding:NSUTF8StringEncoding];
        //        NSLog(@"%@",propertyName);
        [data addObject:propertyName];
    }
    // 釋放list
    free(list);
    
    return data.copy;
}