iOS支付宝、微信、银联支付集成封装调用（下）

#import "IOAPayApi.h"

@implementation IOAPayRequestModel

- (void)setPayType:(PayType)payType {
 _payType = payType;
 if (_payType == kPayTypeALiPay) {
 self.appScheme = @"IOAAlipaySDK";
 // 测试
// self.payString = @"alipay_sdk=1.0&app_id=2018012502067343&biz_content=%7B%22subject%22%3A%22%E6%94%AF%E4%BB%98%E5%AE%9D%E6%94%AF%E4%BB%98%22%2C%22out_trade_no%22%3A%222018032100007%22%2C%22total_amount%22%3A%220.01%22%2C%22product_code%22%3A%22QUICK_MSECURITY_PAY%22%2C%22timeout_express%22%3A%2210m%22%2C%22seller_id%22%3A%222088001065568658%22%7D&charset=UTF-8&format=json&method=alipay.trade.app.pay¬ify_url=api.ioa365.net%2Fapp%2Fapi%2FPayment%2Falipay_notify&sign_type=RSA2×tamp=2018-03-21+16%3A59%3A15&version=1.0&sign=SFyiWFqdkG98qarJFKfNjts8w2RS7ATwjCRyNnKYILDaVVFEnR%2F943QjK9WFaZgipx38rZuRf%2Bl4M74Hp2PO%2F%2F0ZfSKAntTU3DMLIVgt4YD42W1F2lOP3iXtkL5BHpPzt6YfDQueCz1zReeAWQXlyBDvvnjbJ9p67f2jt8jfqM6Enz6kWwY5cShyDD6iJQF0FKXdmSYA%2BiCO6IIHdiqKsRLHuBPb8lfSxJyY1%2FbaAUysIB3%2BiU6HWASUGadCVL769ivwHKwdjZQZUoFpjcfnneyZG3%2B4f%2FnlBrY1pKk3ZWy2UqpTtk0w0GofsF167dRz47J0lW7UufyM8uA%2BIhZ7Lw%3D%3D";
 
 return;
 }
 
 if (_payType == kPayTypeUNPay) {
 self.appScheme = @"UPPay";
 
 // 测试
// self.payString = @"559018436594292239101";
 
 return;
 }
 
 // 测试
// self.userInfo = @{
//     @"appid":@"wx66a3135d1354b23b",
//     @"noncestr":@"J8pJbaEg6AjDQ9kk",
//     @"partnerid":@"1497576612",
//     @"prepayid":@"wx20180321170621b3fbce61a20187009040",
//     @"result_code":@"SUCCESS",
//     @"return_code":@"SUCCESS",
//     @"return_msg":@"OK",
//     @"sign":@"29FFF7B63A71D3FB4C6866BDBC443F72",
//     @"timestamp":@"1521623180",
//     @"trade_type":@"APP",
//     };
}
@end

@implementation IOAPayResponseModel

@end

@interface IOAPayApi() <WXApiDelegate>

@end

@implementation IOAPayApi

//单例方法
static IOAPayApi *manager = nil;
+ (instancetype)defaultPayManager {
 static dispatch_once_t onceToken;
 dispatch_once(&onceToken, ^{
 manager = [IOAPayApi new];
 });
 return manager;
}

+ (instancetype)allocWithZone:(struct _NSZone *)zone {
 static dispatch_once_t onceToken;
 dispatch_once(&onceToken, ^{
 manager = [super allocWithZone:zone];
 });
 
 return manager;
}

//copy在底层 会调用copyWithZone:
- (instancetype)copyWithZone:(NSZone *)zone {
 return [[self class] defaultPayManager];
}
+ (instancetype)copyWithZone:(struct _NSZone *)zone {
 return [self defaultPayManager];
}
+ (instancetype)mutableCopyWithZone:(struct _NSZone *)zone {
 return [self defaultPayManager];
}
- (instancetype)mutableCopyWithZone:(NSZone *)zone {
 return [[self class] defaultPayManager];
}

#pragma mark - WeiChatPayDelegate
- (void)onResp:(BaseResp *)resp {
 //启动微信支付的response
 if (self.payRequestModel.payType == kPayTypeWXPay) {
 if (self.callback) {
  IOAPayResponseModel *payResponseModel = [IOAPayResponseModel new];
  payResponseModel.result = 0;
  if([resp isKindOfClass:[PayResp class]]){
  //支付返回结果，实际支付结果需要去微信服务器端查询
  switch (resp.errCode) {
   case 0:
//   payResoult = @"支付结果：成功！";
   payResponseModel.result = 1;
   break;
   case -1:
   payResponseModel.result = 0;
   break;
   case -2:
   payResponseModel.result = 0;
   break;
   default:
   break;
  }
  }
  
  self.callback(payResponseModel);
 }
 }
}

#pragma mark - Public

// 是否安装了客户端
- (BOOL)isPayAppInstalled:(PayType)payType {
 switch (payType) {
 case kPayTypeWXPay:
  return [WXApi isWXAppInstalled];
  break;
  
 case kPayTypeALiPay:
  // 未提供接口 返回NO
  return NO;
  break;
 case kPayTypeUNPay:
  return [[UPPaymentControl defaultControl] isPaymentAppInstalled];
  break;
 default:
  break;
 }
 
 return NO;
}

- (void)pay:(IOAPayRequestModel *)payRequestModel callback:(void (^)(IOAPayResponseModel *response))callback {
 if (!payRequestModel) return;
 self.callback = callback;
 self.payRequestModel = payRequestModel;
 
 switch (payRequestModel.payType) {
 case kPayTypeWXPay:
  [self wxPay:payRequestModel];
  break;
  
 case kPayTypeALiPay:
  [self aliPay:payRequestModel];
  break;
 case kPayTypeUNPay:
  [self unPay:payRequestModel];
  break;
 default:
  break;
 }
}

// 支付回调
- (void)payCallbackWithUrl:(NSURL *)url {
 // 其他如支付等SDK的回调
 if ([url.host isEqualToString:@"safepay"]) {
 [self aliPayCallback:url];
 }
 else if ([url.host isEqualToString:@"pay"]) {
 // 处理微信的支付结果
 [self wxPayCallback:url];
 }
 else if ([url.host isEqualToString:@"uppayresult"]) {
 [self unPayCallback:url];
 }
}

#pragma mark - Pay

// 微信支付
- (void)wxPay:(IOAPayRequestModel *)payRequestModel {
 PayReq *req = [[PayReq alloc] init];
 NSDictionary *dataDic = payRequestModel.userInfo;
 //由用户微信号和AppID组成的唯一标识，用于校验微信用户
 req.openID = dataDic[@"appid"];
 // 商家id，在注册的时候给的
 req.partnerId = dataDic[@"partnerid"];
 // 预支付订单这个是后台跟微信服务器交互后，微信服务器传给你们服务器的，你们服务器再传给你
 req.prepayId = dataDic[@"prepayid"];
 // 根据财付通文档填写的数据和签名
 req.package = @"Sign=WXPay";
 // 随机编码，为了防止重复的，在后台生成
 req.nonceStr = dataDic[@"noncestr"];
 // 这个是时间戳，也是在后台生成的，为了验证支付的
 NSString * stamp = dataDic[@"timestamp"];
 req.timeStamp = stamp.intValue;
 // 这个签名也是后台做的
 req.sign = dataDic[@"sign"];
 //发送请求到微信，等待微信返回onResp
 [WXApi sendReq:req];
}

// 支付宝
- (void)aliPay:(IOAPayRequestModel *)payRequestModel {
 NSString *appScheme = payRequestModel.appScheme;
 NSString *payString = payRequestModel.payString;
 
 __weak __typeof(self)weakSelf = self;
 [[AlipaySDK defaultService] payOrder:payString fromScheme:appScheme callback:^(NSDictionary *resultDic) {
 if (weakSelf.payRequestModel.payType == kPayTypeALiPay) {
  if (weakSelf.callback) {
  IOAPayResponseModel *payResponseModel = [IOAPayResponseModel new];
  payResponseModel.userInfo = resultDic;
  payResponseModel.result = [resultDic[@"result"] integerValue];
  weakSelf.callback(payResponseModel);
  }
 }
 }];
}

// 银联支付
- (void)unPay:(IOAPayRequestModel *)payRequestModel {
 NSString *appScheme = payRequestModel.appScheme;
 NSString *payString = payRequestModel.payString;
 [[UPPaymentControl defaultControl] startPay:payString fromScheme:appScheme mode:@"01" viewController:[UIApplication sharedApplication].keyWindow.rootViewController];
}

//////
- (void)wxPayCallback:(NSURL *)url {
 //跳转支付宝钱包进行支付，处理支付结果
 [WXApi handleOpenURL:url delegate:self];
}

- (void)aliPayCallback:(NSURL *)url {
 __weak typeof(self)weakSelf = self;
 [[AlipaySDK defaultService] processOrderWithPaymentResult:url standbyCallback:^(NSDictionary *resultDic) {
 if (weakSelf.payRequestModel.payType == kPayTypeALiPay) {
  if (weakSelf.callback) {
  IOAPayResponseModel *payResponseModel = [IOAPayResponseModel new];
  payResponseModel.userInfo = resultDic;
  payResponseModel.result = [resultDic[@"result"] integerValue];
  weakSelf.callback(payResponseModel);
  }
 }
 }];
}

- (void)unPayCallback:(NSURL *)url {
 __weak typeof(self)weakSelf = self;
 [[UPPaymentControl defaultControl]handlePaymentResult:url completeBlock:^(NSString *code, NSDictionary *data) {
 if (weakSelf.payRequestModel.payType == kPayTypeUNPay) {
  if (weakSelf.callback) {
  IOAPayResponseModel *payResponseModel = [IOAPayResponseModel new];
  payResponseModel.userInfo = data;
  if ([code isEqualToString:@"success"]) {
   [[NSNotificationCenter defaultCenter] postNotificationName:@"YINLIANPAYS" object:nil];
   payResponseModel.result = [code boolValue];
  }
  else if([code isEqualToString:@"fail"]) {
   //交易失败
   [[NSNotificationCenter defaultCenter] postNotificationName:@"YINLIANPAYF" object:nil];
   payResponseModel.result = [code boolValue];
  }
  else if([code isEqualToString:@"cancel"]) {
   //交易取消
   [[NSNotificationCenter defaultCenter] postNotificationName:@"YINLIANPAYC" object:nil];
   payResponseModel.result = 0;
  }
  
  weakSelf.callback(payResponseModel);
  }
 }
 }];
}
@end								 
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