运行时，生成property属性代码

根据字典，生成property属性代码

• 遍历字典，根据value类型生成对应的属性

@implementation NSObject (Property)

+ (void)createPropertyCodeWithDictionary:(NSDictionary *)dict
{
    // 必须先创建,否则下面输出为nil [nil appendFormat:xxx];
    NSMutableString *stringM = [NSMutableString string];
    [dict enumerateKeysAndObjectsUsingBlock:^(id  _Nonnull key, id  _Nonnull obj, BOOL * _Nonnull stop) {
        // created_at----__NSCFString
//        NSLog(@"%@----%@", key, [obj class]);
       
        NSString *code;
        if ([obj isKindOfClass:NSClassFromString(@"__NSCFNumber")]) {
            code = [NSString stringWithFormat:@"@property (nonatomic, assign) int %@;", key];
        } else if ([obj isKindOfClass:NSClassFromString(@"__NSCFString")]) {
            code = [NSString stringWithFormat:@"@property (nonatomic, copy) NSString *%@;", key];
        } else if ([obj isKindOfClass:NSClassFromString(@"__NSCFArray")]) {
            code = [NSString stringWithFormat:@"@property (nonatomic, strong) NSArray *%@;", key];
        } else if ([obj isKindOfClass:NSClassFromString(@"__NSCFDictionary")]) {
            code = [NSString stringWithFormat:@"@property (nonatomic, strong) NSDictionary *%@;", key];
        } else if ([obj isKindOfClass:NSClassFromString(@"__NSCFBoolean")]) {
            code = [NSString stringWithFormat:@"@property (nonatomic, assign) BOOL %@;", key];
        }
//        NSLog(@"%@", code);
        [stringM appendFormat:@"\n%@\n", code];
    }];
    // 一次性输出好复制
    NSLog(@"%@", stringM);
}
@end

如何使用？

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // 1.获得json文件地址
    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"status.plist" ofType:nil];
    // 2.json转换为字典
    NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:filePath];
    NSArray *dictArray = dict[@"statuses"];
   
    // 字典转property属性
    [NSObject createPropertyCodeWithDictionary:dictArray[0][@"user"]];
}

根据字典生成property属性代码

代码资源：我的Github