在Swift中使用JSONModel 实例代码
前言
首先所有的Model还是使用oc来写——看到这一句是不是想关网页了- - #,在swift里面直接写一直报错所以就将就用oc来写了,这里主要是分享一下搭配Alamofire使用的经验。
正文
这里不讨论JSONModel和Alamofire这两个项目,直接上代码,BaseModel.h
#import "JSONModel.h" @interface BaseModel : JSONModel -(instancetype)initWithDictionary:(NSDictionary*)dict; @end
BaseModel.m
#import "BaseModel.h" @implementation BaseModel //Make all model properties optional (avoid if possible) +(BOOL)propertyIsOptional:(NSString*)propertyName { return YES; } -(instancetype)initWithDictionary:(NSDictionary*)dict { return (self = [[super init] initWithDictionary:dict error:nil]); } @end
所有的Model都要继承BaseModel,其他写法都一样
BaseAPI.swift
internal func requestModel<T: BaseModel>(method: Method, _ URLString: URLStringConvertible, parameters: [String: AnyObject]? = nil, success: (T) -> Void, failure: (NSError?) -> Void) { mHttpManager.request(method, URLString , parameters: parameters, encoding: ParameterEncoding.JSON) .responseJSON { (request, response, data, error) in if error == nil { if let dict = data as? NSDictionary { if let model = T(dictionary: dict as [NSObject : AnyObject]) { success(model) return } } } failure(error) } } internal func requestArray<T: BaseModel>(method: Method, _ URLString: URLStringConvertible, parameters: [String: AnyObject]? = nil, success: (Array<T>) -> Void, failure: (NSError?) -> Void) { mHttpManager.request(method, URLString , parameters: parameters, encoding: ParameterEncoding.JSON) .responseJSON { (request, response, data, error) in if error == nil { if let array = data as? NSArray { if let result = T.arrayOfModelsFromDictionaries(array as [AnyObject]).copy() as? Array<T>{ success(result) return } } } failure(error) } }
代码说明
1、mHttpManager这个是Alamofire的Manager对象
2、注意服务端的返回的数据格式,这里支持Model和Array<Model>
3、注意在Swift里面NSDictionary转Model,用T(dictionary: dict as [NSObject : AnyObject]),这个T就是具体的泛型类型
4、注意在Swift里面NSArray转Model数组,用T.arrayOfModelsFromDictionaries(array as [AnyObject]).copy() as? Array<T>,注意不要用BaseModel. arrayOfModelsFromDictionaries(编译不会报错但是类型转不出来)
5、具体用法:
public func casts(success: (Array<CustomModel>) -> Void, failure: (NSError?) -> Void) { requestArray(Method.GET, URL_CASTS, parameters: nil, success: success, failure: failure) } public func like(id: String, success: (CustomModel) -> Void, failure: (NSError?) -> Void) { requestModel(Method.PATCH, String(format: URL_CASTS_LIKE, id), parameters: nil, success: success, failure: failure) }
以上就是在Swift中使用JSONModel 实例代码,有需要的朋友可以参考下。
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