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。
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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)
}
非常轻松和简单, 可以少写很多重复代码。
后期维护
2015-05-20 Alamofire兼容iOS7有点问题,设置head不管用,请参考我另外一篇文章:【iOS】Alamofire库在iOS7下设置Head无效的问题
结束
以后还会分享更多swift的经验,欢迎交流!