iOS开发 - 支付宝/微信第三方支付工具类

调用方式

// 支付结果监听
[YWPayHepler shareHelper].payResultBlock = ^(BOOL result, NSString * _Nonnull resultMsg) {
    NSLog(@"结果回调：%@ ---> %@", (result ? @"支付成功" : @"支付失败"), resultMsg);
};

YWPayHepler .h

#import <Foundation/Foundation.h>

#import <AlipaySDK/AlipaySDK.h>
#import "WXApi.h"

#define YWPayResultNotice           @"MGPayResultNotice"            // 支付结果通知

NS_ASSUME_NONNULL_BEGIN

@interface YWPayHepler : NSObject

/** 回调 result支付结果状态(成功/失败) resultMsg支付结果消息 */
@property (nonatomic, copy) void (^payResultBlock)(BOOL result, NSString *resultMsg);

+ (instancetype)shareHelper;

/**
 支付宝支付
 拉起本地客户端支付成功后在[AppDelegate application:openURL:options:]中回调支付结果

 @param paySign     支付签名
 @param resultBlock 支付结果回调（H5网页支付回调）
 */
+ (void)aliPayOrderWithSign:(NSString *)paySign
                resultBlock:(void (^)(NSDictionary *resultDic))resultBlock;
@end

YWPayHepler .m

#import "YWPayHepler.h"

static YWPayHepler *helper = nil;
@implementation YWPayHepler

+ (instancetype)shareHelper
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        helper = [[YWPayHepler alloc] init];
    });
    return helper;
}

- (id)init
{
    self = [super init];
    if (self) {
        [self _initHelper];
    }
    return self;
}

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

#pragma mark - init
- (void)_initHelper
{
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(payResultHandleNotification:) name:YWPayResultNotice object:nil];
}

#pragma mark -- 支付回调（微信支付回调 & 支付宝支付回调）
- (void)payResultHandleNotification:(NSNotification *)notification {
    
    BOOL result = NO;
    NSString *resultMsgStr = @"支付结果";
    
    //支付宝支付 - 回调(用userInfo)
    if (notification.userInfo) {
        // 支付结果解析
        NSInteger resultStatus = [notification.userInfo[@"resultStatus"] integerValue];
        switch (resultStatus) {
            case 9000:
            {
                result = YES;
                resultMsgStr = @"支付成功";
                // 更新用户余额
                [MGUserNetworkManager updateUserBalanceBlock:^(BOOL success) {}];
            }
                break;
            case 4000:
                resultMsgStr = @"支付失败";
                break;
            case 6001:
                resultMsgStr = @"用户中途取消支付";
                break;
            case 6002:
                resultMsgStr = @"支付失败 - 网络连接出错";
                break;
            case 8000:
                resultMsgStr = @"正在处理中";
                break;
            default:
                resultMsgStr = @"支付失败 - 未知原因";
                break;
        }
        
    }
    
    //微信支付 - 回调(用object)
    if (notification.object) {
        //回调消息
        PayResp *payResp = notification.object;
        switch (payResp.errCode) {
            case WXSuccess:
                result = YES;
                resultMsgStr = @"支付成功";
                break;
            case WXErrCodeCommon:
                resultMsgStr = @"支付失败";//签名错误、未注册APPID、项目设置APPID不正确、注册的APPID与设置的不匹配、其他异常等
                break;
            case WXErrCodeUserCancel:
                resultMsgStr = @"支付取消";
                break;
            case WXErrCodeSentFail:
                resultMsgStr = @"发送失败";
                break;
            case WXErrCodeUnsupport:
                resultMsgStr = @"支付不支持";
                break;
            case WXErrCodeAuthDeny:
                resultMsgStr = @"支付授权失败";
                break;
            default:
                resultMsgStr = @"支付失败 - 未知原因";
                break;
        }
    }
    
    // 弹窗支付结果
    [self showAlertWithResultMessage:resultMsgStr result:result];
}

#pragma mark - * * * * * private * * * * *

- (void)showAlertWithResultMessage:(NSString *)msgStr result:(BOOL)result {
    
    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"提示" message:msgStr preferredStyle:UIAlertControllerStyleAlert];
    UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        if (self.payResultBlock) {
            self.payResultBlock(result, msgStr);
        }
    }];
    [alertController addAction:okAction];
    UIWindow *window = [[UIApplication sharedApplication] keyWindow];
    UIViewController *rootViewController = window.rootViewController;
    [rootViewController presentViewController:alertController animated:YES completion:nil];
}

+ (void)aliPayOrderWithSign:(NSString *)paySign resultBlock:(void (^)(NSDictionary * _Nonnull))resultBlock {
    // 拿着支付宝订单签名使用SDK发起支付
    [[AlipaySDK defaultService] payOrder:paySign fromScheme:YWPayURLScheme callback:resultBlock];
}
@end

### 其他demo参考
/* 微信支付
Log(@"微信支付签名信息 - %@",signDic);
PayReq *request = [[PayReq alloc] init];
request.partnerId = [signDic[@"partnerid"] mutableCopy];
request.prepayId = [signDic[@"prepayid"] mutableCopy];
request.package = [signDic[@"package"] mutableCopy];
request.nonceStr = [signDic[@"noncestr"] mutableCopy];
int ivalue = [[signDic[@"timestamp"] mutableCopy] intValue];
request.timeStamp = ivalue;
request.sign = [signDic[@"sign"] mutableCopy];

if (![WXApi sendReq: request]) {
    NSLog(@"微信支付失败");
} else {
    NSLog(@"微信操作请求成功(并非支付成功，成功后会在Appdelegate里面回调)");
}
*/

#pragma mark - * * * * * AppDelegate.m 中的支付回调 * * * * *
// 只适用于iOS9以上，会优先走这个方法
- (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) {
            MGLog(@"支付跳转支付宝钱包进行支付，处理支付结果回调：result = %@",resultDic);
            [[NSNotificationCenter defaultCenter] postNotificationName:YWPayResultNotice object:nil userInfo:resultDic];
        }];
        return YES;
    }else if ([url.scheme isEqualToString:WX_KEY]) {
        // 微信支付回调处理（处理后走代理方法：- (void)onResp:(BaseResp *)resp）
        return [WXApi handleOpenURL:url delegate:self];
    }
    return YES;

}

// 微信回调处理
- (void)onResp:(BaseResp *)resp {
    //微信支付回调
    PayResp *payResp = (PayResp *) resp;
    [[NSNotificationCenter defaultCenter] postNotificationName: YWPayResultNotice object:payResp userInfo:nil];
}