iOS支付宝，微信，银联支付集成封装调用（下）
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一.越来越多的app增加第三方的功能，可能app有不同的页面但调用相同的支付方式，例如界面如下：
这两个页面都会使用第三方支付支付：（微信，支付宝，银联）如果在每一个页面都直接调用第三方支付的接口全部代码，显然并不是很合适，更何况，可能一个app并不止两个入口。所以封装还是很有必要的。
1.新建Model：-------后台返回支付方式的列表json
#import <Foundation/Foundation.h> @interface IOAPayItemModel : NSObject //name:代表是支付宝，微信，银联或者余额等 @property (nonatomic, copy) NSString *name; //icon:代表是支付方式的图片 @property (nonatomic, copy) NSString *icon; //code:代表支付方式的唯一标识 @property (nonatomic, copy) NSString *code; //payType:代表支付类型（自己确定的） @property (nonatomic, assign) NSInteger payType; @end
#import "IOAPayItemModel.h" @implementation IOAPayItemModel @end
2.封装第三方支付接口以及回调接口-----直接上源代码----会有解释（相信大家的能力，肯定能看懂）
#import <Foundation/Foundation.h> //支付宝SDK #import <AlipaySDK/AlipaySDK.h> //微信接口 #import <WXApi.h> //银联接口 #import "UPPaymentControl.h" /** 枚举：列出第三方支付方式 */ typedef NS_ENUM(NSInteger, PayType) { kPayTypeWXPay, // 微信支付 kPayTypeALiPay, // 支付宝支付 kPayTypeUNPay // 银联支付 }; /** IOAPayRequestModel:第三方支付需要的参数 */ @interface IOAPayRequestModel: NSObject @property (nonatomic, assign) PayType payType; /** 支付宝和银联-后台返回是字符串类型----支付宝和银联使用此方式 */ @property (nonatomic, copy) NSString *payString; @property (nonatomic, copy) NSString *appScheme; // 根据设置的paytype设置 /** 微信-后台返回是字典类型--- 微信使用此方式 */ @property (nonatomic, strong) NSDictionary *userInfo; @end /** 第三方支付接口返回的数据--- */ @interface IOAPayResponseModel: NSObject @property (nonatomic, assign) PayType payType; //result和userInfo信息判断支付结果--（支付成功、支付失败、支付取消等） @property (nonatomic, assign) NSInteger result; @property (nonatomic, strong) NSDictionary *userInfo; @end @interface IOAPayApi : NSObject //支付返回的回调方法 @property (nonatomic, copy) void (^callback)(IOAPayResponseModel *response); //支付请求model ----IOAPayRequestModel---第三方支付需要的参数 @property (nonatomic, strong) IOAPayRequestModel *payRequestModel; //单例方法 + (instancetype)defaultPayManager; // 是否安装了客户端 - (BOOL)isPayAppInstalled:(PayType)payType; // 支付 - (void)pay:(IOAPayRequestModel *)payRequestModel callback:(void (^)(IOAPayResponseModel *response))callback; // 支付回调 - (void)payCallbackWithUrl:(NSURL *)url; @end
#import "IOAPayApi.h" @implementation IOAPayRequestModel - (void)setPayType:(PayType)payType { _payType = payType; if (_payType == kPayTypeALiPay) { self.appScheme = @"IOAAlipaySDK"; // 测试 return; } if (_payType == kPayTypeUNPay) { self.appScheme = @"UPPay"; // 测试 // self.payString = @"559018436594292239101"; return; } // 测试 // self.userInfo = @{ // @"appid":@"", // @"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
3.此时方法就开始封装好了，可以在需要的地方直接使用（弹框已作出）
- (void)alipay{ [self startProgress]; self.requestModel.pay_type = @"alipayMobile"; //自己后台的接口---拿到后台返回的数据作为第三方接口的参数 [self.viewModel requestCartSettlePay:self.requestModel callback:^(IOAResponse *response) { dispatch_async(dispatch_get_main_queue(), ^{ [self stopProgress]; if (response.success) { NSString *appScheme = @"IOAAlipaySDK"; self.payRequestModel.payString = response.responseObject; self.payRequestModel.payType = 1; self.payRequestModel.appScheme = appScheme; //第三方接口调用（封装） [[IOAPayApi defaultPayManager] pay:self.payRequestModel callback:^(IOAPayResponseModel *response) { dispatch_async(dispatch_get_main_queue(), ^{ NSDictionary *userInfo = response.userInfo; if (![userInfo[@"resultStatus"] isEqualToString:@"9000"]) { //进入待付款界面(支付失败或者支付取消等) [self pushWait]; }else{ //进入订单列表界面（支付成功） [self pushList]; } }); }]; }else{ [self.view makeToast:@"支付失败"]; } }); }]; }
4.重磅来临（一些人弹框没有作出，可以直接拷贝下面代码）
新建控制器控制弹框.h文件中
#import <UIKit/UIKit.h> #import "IOAPayApi.h" #import "IOAPayItemModel.h" @interface IOAPayViewController : UIViewController //点击第几行回调声明 @property (nonatomic, copy) void (^clickCallback)(NSInteger atIndex); + (instancetype)show; //block回调方法 + (instancetype)show:(void (^)(NSInteger atIndex))clickCallback; + (void)dismiss; - (void)setupItemTitles:(NSArray <NSString *>*)titles; - (void)setupItems:(NSArray <IOAPayItemModel *>*)items; - (void)setupTitle:(NSString *)title; @end
实现其方法.m文件中
#import "IOAPayViewController.h" #define PayCellHeight 50 #define PaySectionHeaderHeight 44 @interface IOAPayViewController () <UITableViewDataSource, UITableViewDelegate> @property (nonatomic, strong) CALayer *maskLayer; @property (nonatomic, strong) UILabel *titleView; @property (nonatomic, strong) UIView *payBgView; @property (nonatomic, strong) UITableView *tableView; @property (nonatomic, strong) NSMutableArray *dataSources; @property (nonatomic, assign) CGFloat payViewHeight; - (void)showPayView; - (void)dismissPayView; @end @implementation IOAPayViewController - (void)dealloc { } + (instancetype)show { UIViewController *rootvc = [UIApplication sharedApplication].keyWindow.rootViewController; IOAPayViewController *vc = [IOAPayViewController new]; [rootvc addChildViewController:vc]; [rootvc.view addSubview:vc.view]; [vc setupItemTitles:@[@"微信支付", @"支付宝支付", @"银联支付"]]; [vc showPayView]; return vc; } + (instancetype)show:(void (^)(NSInteger atIndex))clickCallback { IOAPayViewController *vc = [self show]; vc.clickCallback = clickCallback; return vc; } + (void)dismiss { UIViewController *rootvc = [UIApplication sharedApplication].keyWindow.rootViewController; for (UIViewController *vc in rootvc.childViewControllers) { if ([vc isKindOfClass:[IOAPayViewController class]]) { IOAPayViewController *tempVC = (IOAPayViewController *)vc; [tempVC dismissPayView]; return; } } } - (void)viewDidLoad { [super viewDidLoad]; self.view.backgroundColor = [UIColor clearColor]; self.maskLayer.frame = self.view.bounds; [self.view.layer addSublayer:self.maskLayer]; [self.view addSubview:self.payBgView]; // [self.view addSubview:self.tableView]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } #pragma mark - UITableViewDataSource - (NSInteger )numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return self.dataSources.count; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath]; id temp = self.dataSources[indexPath.row]; if ([temp isKindOfClass:[NSString class]]) { cell.textLabel.text = temp; } else { IOAPayItemModel *item = temp; cell.textLabel.text = item.name; } cell.textLabel.font = [UIFont systemFontOfSize:18]; cell.textLabel.textColor = RGB_HEXString(@"#323232"); cell.selectionStyle = UITableViewCellSelectionStyleNone; return cell; } #pragma mark - UITableViewDelegate - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return PayCellHeight; } - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { return self.titleView; } - (CGFloat )tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section { return PaySectionHeaderHeight; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // IOAPayRequestModel *payRequestModel = [IOAPayRequestModel new]; // payRequestModel.payType = indexPath.row; //// WS(weakSelf); //// __weak typeof (self)weakSelf = self; // __block IOAPayViewController *payVC = self; // [[IOAPayApi defaultPayManager] pay:payRequestModel callback:^(IOAPayResponseModel *response) { //// __strong __typeof (weakSelf)strongSelf = weakSelf; // response.payType = indexPath.row; // if (payVC.clickCallback) { // payVC.clickCallback(response); // payVC = nil; // } // }]; if (self.clickCallback) { self.clickCallback(indexPath.row); } [self dismissPayView]; } #pragma mark - Touches - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { [self dismissPayView]; } #pragma mark - Public - (void)setupItemTitles:(NSArray<NSString *> *)titles { if (!titles.count) { return ; } self.payViewHeight = titles.count * PayCellHeight + PaySectionHeaderHeight; CGRect frame = self.view.frame; frame.size.height = self.payViewHeight; self.tableView.frame = frame; [self.dataSources removeAllObjects]; [self.dataSources addObjectsFromArray:titles]; [self.tableView reloadData]; [self setPayViewFrame]; } - (void)setupItems:(NSArray <IOAPayItemModel *>*)items { if (!items.count) { return ; } for (IOAPayItemModel *item in items) { if ([item.code isEqualToString:@"appWeixinPay"]) { item.payType = 0; continue; } if ([item.code isEqualToString:@"alipayMobile"]) { item.payType = 1; continue; } if ([item.code isEqualToString:@"unionpay"]) { item.payType = 2; continue; } if ([item.code isEqualToString:@"ye"]) { item.payType = 3; continue; } item.payType = 3; } self.payViewHeight = items.count * PayCellHeight + PaySectionHeaderHeight; CGRect frame = self.view.frame; frame.size.height = self.payViewHeight; self.tableView.frame = frame; [self.dataSources removeAllObjects]; [self.dataSources addObjectsFromArray:items]; [self.tableView reloadData]; [self setPayViewFrame]; } - (void)setupTitle:(NSString *)title { self.titleView.text = title; } #pragma mark - Private - (void)showPayView { [self.view.layer removeAllAnimations]; CGFloat payBgViewHeight = self.payViewHeight + BottomHeightOffset; CGRect frame = self.view.frame; frame.origin.y = self.view.frame.origin.y + self.view.frame.size.height; frame.size.height = payBgViewHeight; self.payBgView.frame = frame; frame.origin.y = self.view.frame.size.height - payBgViewHeight; [UIView animateWithDuration:0.25 animations:^{ self.payBgView.frame = frame; }]; } - (void)setPayViewFrame { CGFloat payBgViewHeight = self.payViewHeight + BottomHeightOffset; CGRect frame = self.view.frame; frame.origin.y = self.view.frame.origin.y + self.view.frame.size.height; frame.size.height = payBgViewHeight; frame.origin.y = self.view.frame.size.height - payBgViewHeight; self.payBgView.frame = frame; } - (void)dismissPayView { CGFloat payBgViewHeight = self.payViewHeight + BottomHeightOffset; CGRect frame = self.view.frame; frame.origin.y = self.view.frame.origin.y + self.view.frame.size.height; frame.size.height = payBgViewHeight; [UIView animateWithDuration:0.25 animations:^{ self.payBgView.frame = frame; } completion:^(BOOL finished) { [self.view removeFromSuperview]; [self removeFromParentViewController]; }]; } #pragma mark - Setter / Getter - (CALayer *)maskLayer { if (_maskLayer == nil) { _maskLayer = [CALayer layer]; _maskLayer.backgroundColor = [UIColor blackColor].CGColor; _maskLayer.opacity = 0.2; } return _maskLayer; } - (UILabel *)titleView { if (!_titleView) { _titleView = [UILabel new]; _titleView.textAlignment = NSTextAlignmentCenter; _titleView.text = @"请选择支付方式"; _titleView.font = [UIFont systemFontOfSize:16]; _titleView.textColor = [UIColor blackColor]; _titleView.backgroundColor = RGB_HEXString(@"#f2f2f2");//[UIColor whiteColor]; } return _titleView; } - (UIView *)payBgView { if (!_payBgView) { _payBgView = [UIView new]; _payBgView.backgroundColor = [UIColor whiteColor]; [_payBgView addSubview:self.tableView]; } return _payBgView; } - (UITableView *)tableView{ if (!_tableView) { _tableView = [[UITableView alloc]initWithFrame:CGRectZero style:UITableViewStylePlain]; _tableView.delegate = self; _tableView.dataSource = self; _tableView.showsVerticalScrollIndicator = NO; _tableView.showsHorizontalScrollIndicator = NO; _tableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine; _tableView.separatorColor = RGB_HEXString(@"#f2f2f2"); if ([_tableView respondsToSelector:@selector(setSeparatorInset:)]) { [_tableView setSeparatorInset:UIEdgeInsetsZero]; } if ([_tableView respondsToSelector:@selector(setLayoutMargins:)]) { [_tableView setLayoutMargins:UIEdgeInsetsZero]; } // [_tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"]; } return _tableView; } - (NSMutableArray *)dataSources { if (!_dataSources) { _dataSources = [NSMutableArray array]; } return _dataSources; } - (void)setPayViewHeight:(CGFloat)payViewHeight { _payViewHeight = payViewHeight; CGFloat height = self.view.frame.size.height * 0.6; self.tableView.scrollEnabled = NO; if (_payViewHeight > height) { _payViewHeight = height; self.tableView.scrollEnabled = YES; } } @end
举例方法
利用请求的数据进行赋值传值。
IOAOrderBaseModel *dataSourceModel = self.dataSource[indexPath.section]; IOAOrderSelectAbleItemModel *itemModel = (IOAOrderSelectAbleItemModel *) dataSourceModel.items[row]; IOAPayViewController *vc = [IOAPayViewController show:^(NSInteger atIndex) { IOAPayItemModel *payItem = itemModel.items[atIndex]; itemModel.selectedIndex = atIndex; weakSelf.requestModel.pay_type = payItem.code; weakSelf.payItem = payItem; [weakSelf.tableView reloadSections:[NSIndexSet indexSetWithIndex:section] withRowAnimation:UITableViewRowAnimationNone]; }]; [vc setupItems:self.confirmOrderInfo.payment_list]; [vc setupTitle:@"请选择支付方式"];
最后的举例方法并不是所有的适用，对于上面1.2.3还是可以直接拿过去使用，这些都是原创，如果第一次接入还是希望各位读者读一下上篇文章，集成的整个过程，链接为http://www.cnblogs.com/guohai-stronger/p/8971508.html，这个代码的整个demo，我会尽快上传到github，谢谢！祝贺大家过一个愉快的劳动节！！！
