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  • 【objective-c】字典快速转换为Model代码

    一般情况下iOS得局部页面加载的过程是,创建一个Model然后,将Nib文件与Model进行关联,然后能够快速的获取到Nib文件上的控件实例。操作生成页面。
     
    但是原生的内容是没有直接通过Json获取Model只能生成字典。然后转换为Model。下列方法就是通过字典来转换为Model的过程。
     
     
     
    将字典转换为Model
     
    复制代码
    -(BOOL)reflectDataFromOtherObject:(NSDictionary *)dic
    {
        unsigned int outCount, i;
        objc_property_t *properties = class_copyPropertyList([self class], &outCount);
        
        for (i = 0; i < outCount; i++) {
            objc_property_t property = properties[i];
            NSString *propertyName = [[NSString alloc] initWithCString:property_getName(property) encoding:NSUTF8StringEncoding];
            NSString *propertyType = [[NSString alloc] initWithCString:property_getAttributes(property) encoding:NSUTF8StringEncoding];
            
            if ([[dic allKeys] containsObject:propertyName]) {
                id value = [dic valueForKey:propertyName];
                if (![value isKindOfClass:[NSNull class]] && value != nil) {
                    if ([value isKindOfClass:[NSDictionary class]]) {
                        id pro = [self createInstanceByClassName:[self getClassName:propertyType]];
                        [pro reflectDataFromOtherObject:value];
                        [self setValue:pro forKey:propertyName];
                    }else{
                        [self setValue:value forKey:propertyName];
                    }
                }
            }
        }
        
        free(properties);
        return true;
    }
    复制代码
    其他两个辅助类型方法
     
    复制代码
    -(NSString *)getClassName:(NSString *)attributes
    {
        NSString *type = [attributes substringFromIndex:[attributes rangeOfRegex:@"""].location + 1];
        type = [type substringToIndex:[type rangeOfRegex:@"""].location];
        return type;
    }
     
    -(id) createInstanceByClassName: (NSString *)className {
        NSBundle *bundle = [NSBundle mainBundle];
        Class aClass = [bundle classNamed:className];
        id anInstance = [[aClass alloc] init];
        return anInstance;
    }
    复制代码
     
     
    将Model转换为字典
     
    复制代码
    -(NSDictionary *)convertModelToDictionary
    {
        NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
        
        for (NSString *key in [self propertyKeys]) {
            id propertyValue = [self valueForKey:key];
            //该值不为NSNULL,并且也不为nil
            [dic setObject:propertyValue forKey:key];
        }
        
        return dic;
    }
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  • 原文地址:https://www.cnblogs.com/lozzz-love/p/4657256.html
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