XWPay

支付宝，微信，银联支付高级封装

        NSString *orderStr = [[json xw_dictionaryForKey:@"result"] xw_stringForKey:@"alipay"];
        XWAliPayOrder *aliOrder = [[XWAliPayOrder alloc] creatOrderWithOrderString:orderStr];
        aliOrder.appScheme = AlipayScheme;
        payChannel = [XWPayChannel aliPay:aliOrder];
        
        [XWPay createPayment:payChannel callBack:^(XWPayResult *result){
           [XWProgressHUD showMessage:result.message];
           if (result.status == PaySuccess) {
              if (callback) {
                callback(YES);
               }
            
           }else{
             if (callback) {
                callback(NO);
             }
           }
        }];