IOS整合支付宝支付微信支付

微信支付

下载微信支付SDK，有两种方式

• 官网下载SDK，手动整合到项目中 官网下载地址
• 使用Pod安装

这里我们使用Pod安装
Podfile

pod 'WechatOpenSDK'

添加URLTypes

单击项目 -> Info -> URL Types，URL Schemes为APPID

设置微信代理

AppDelegate.h

#import <UIKit/UIKit.h>
#import <WechatOpenSDK/WXApi.h>//导入头文件

@interface AppDelegate : UIResponder <UIApplicationDelegate, WXApiDelegate>//微信代理
@property (strong, nonatomic) UIWindow *window;

@end

注册微信支付，发起支付必须注册

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    ...
    //向微信注册,发起支付必须注册
    [WXApi registerApp:@"wx77fd65c89h3c88cf"];
    ...
}

微信支付代理回调函数

当支付事件变化时，微信会调用这个函数，返回支付状态
AppDelegate.m

//微信支付回调
#pragma mark - WXApiDelegate
-(void) onResp:(BaseResp*)resp{
    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
        PayResp *response = (PayResp*)resp;
        switch (response.errCode) {
            case WXSuccess:
            {
                NSLog(@"微信支付-成功");
                NSLog(@"response = %@", response);
                //[[NSNotificationCenter defaultCenter] postNotificationName:@"PayRespones" object:nil userInfo:@{@"payment": @"WX"}];
                break;
            }
            case WXErrCodeUserCancel:
            {
                NSLog(@"微信支付-用户点击取消");
                break;
            }
            default:
                break;
        }
    }
}

###### 发起微信支付 在控制器中添加事件

ViewController.m

//发起微信支付
- (IBAction)wxchatButton:(id)sender {
    
    NSLog(@"发起微信支付");

    PayReq *req = [[PayReq alloc] init];
    //注：以下数据全是假数据，实际使用请换上自己的数据
    req.openID = @"wx77fd65c89h3c88cf"; //APPID
    req.partnerId = @"1502584582";//商户号
    req.prepayId = @"wx20095458581091526e83463d33545855302";//预支付交易会话ID
    req.nonceStr = @"pvtLXJB9vKOB32MHvwBmQOnv0czr4upk";//随机字符串
    req.package = @"Sign=WXPay";//扩展字段
    req.timeStamp = 1545271179;//时间戳
    req.sign = @"A37DE7C64DA8C4CEB9E2EC2B6A38B56689EB9B43C2CF1CB7C81E64288990FF1F";//签名
    
    if(![WXApi sendReq:req])
    {
        NSLog(@"支付失败！没有安装微信");
    }
    
}

现在就可以发起微信支付了

##支付宝支付
支付宝签名字符串可以后端组合，所以这里使用的是后端组合好的字符串来发起支付

下载支付宝支付SDK，也是两种方式

• 官网下载SDK，手动整合进项目中 官网下载地址
• 使用Pod安装

这里是使用Pod安装
Podfile

pod 'AlipaySDK-iOS'

添加URLTypes

同微信，新添加一个URLTypes，URLSchemes 设置为 alisdkdemo

导入头文件

#import <AlipaySDK/AlipaySDK.h>

设置代理

AppDelegate.m

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
    if ([url.host isEqualToString:@"safepay"]) {
        // 支付跳转支付宝钱包进行支付，处理支付结果
        [[AlipaySDK defaultService] processOrderWithPaymentResult:url standbyCallback:^(NSDictionary *resultDic) {
            NSLog(@"result = %@",resultDic);
        }];
        
        // 授权跳转支付宝钱包进行支付，处理支付结果
        [[AlipaySDK defaultService] processAuth_V2Result:url standbyCallback:^(NSDictionary *resultDic) {
            NSLog(@"result = %@",resultDic);
            // 解析 auth code
            NSString *result = resultDic[@"result"];
            NSString *authCode = nil;
            if (result.length>0) {
                NSArray *resultArr = [result componentsSeparatedByString:@"&"];
                for (NSString *subResult in resultArr) {
                    if (subResult.length > 10 && [subResult hasPrefix:@"auth_code="]) {
                        authCode = [subResult substringFromIndex:10];
                        break;
                    }
                }
            }
            NSLog(@"授权结果 authCode = %@", authCode?:@"");
        }];
    }
    return YES;
}

// NOTE: 9.0以后使用新API接口
- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString*, id> *)options
{
    if ([url.host isEqualToString:@"safepay"]) {
        // 支付跳转支付宝钱包进行支付，处理支付结果
        [[AlipaySDK defaultService] processOrderWithPaymentResult:url standbyCallback:^(NSDictionary *resultDic) {
            NSLog(@"result = %@",resultDic);
        }];
        
        // 授权跳转支付宝钱包进行支付，处理支付结果
        [[AlipaySDK defaultService] processAuth_V2Result:url standbyCallback:^(NSDictionary *resultDic) {
            NSLog(@"result = %@",resultDic);
            // 解析 auth code
            NSString *result = resultDic[@"result"];
            NSString *authCode = nil;
            if (result.length>0) {
                NSArray *resultArr = [result componentsSeparatedByString:@"&"];
                for (NSString *subResult in resultArr) {
                    if (subResult.length > 10 && [subResult hasPrefix:@"auth_code="]) {
                        authCode = [subResult substringFromIndex:10];
                        break;
                    }
                }
            }
            NSLog(@"授权结果 authCode = %@", authCode?:@"");
        }];
    }
    return YES;
}

发起支付宝支付

在控制器中添加事件

ViewController.m

NSLog(@"发起支付宝支付");
NSString *orderStr = @"xxxxxxxxxxxxxxxxxxx";
/*orderStr 为后端组合好的字符串，例如
@"return_url=http%3A%2F%2F127.0.0.1%3A8909%2Fmpay%2Falipay_trade_return%2F&sign_type=RSA2×tamp=2018-06-06+11%3A03%3A27¬ify_url=http%3A%2F%2F183.6.120.171%3A8001%2Fmpay%2Falipay_trade_notify%2F&biz_content=%7B%22timeout_express%22%3A%221h%22%2C%22time_expire%22%3A%222018-12-20+12%3A03%3A27%22%2C%22total_amount%22%3A0.01%2C%22product_code%22%3A%22QUICK_MSECURITY_PAY%22%2C%22out_trade_no%22%3A%221545275007290003%22%2C%22subject%22%3A%22%5Cu5145%13ddd%22%7D&charset=utf-8&method=alipay.trade.app.pay&sign=ZPelFEK5Ssslan0AEXf7VBWCHkahdbREapw54KJHIZZ%2B1MVkrIjXd2DUALBUSvT7kN54nhE5VWAa7Q6vxBSp5dYt213H5iQsEhvvZehYiz0Gx%2FFThQvqoi2RkQoif05iRwYg823kXsr4yXxaguUWfBKKKtrt4BEGHiprYGJf5qSQF63sb7R0WDHvxJ%2BPFnFKlAoyoCt9%2BnyvawuF%2BXGb1R8%2FwD4joEdkSCQf5hUIDJLhpUmTVxev25vtkk0I%2BVGBAXoG2jdMUPTda4b15j00weHCIEucBZPkDg%2FI8BF0MOO5WbzkoCjACACxt%2FzdZLZ9fBElVWV4oYY4I1Edt4Wog%3D%3D&format=JSON&app_id=2018458522154246&version=1.0"
*/
                    
[[AlipaySDK defaultService] payOrder:orderStr fromScheme:@"alipaydemo" callback:^(NSDictionary *resultDic) {
      NSLog(@"resultDic = %@", resultDic);     
}];

示例项目（整合微信与支付宝支付）下载地址：

IOS整合支付宝支付微信支付示例项目

推荐一个实用的在线工具网

https://www.hldww.com/cn/