1. 支付宝SDK集成
实现思路:
1.下载支付宝SDK
2.集成SDK到项目中，参考官方集成文档。
3.调起支付宝SDK
NSString *appScheme = @"smartarena";
// NOTE: 将签名成功字符串格式化为订单字符串,请严格按照该格式
NSString *sdkParam = dict[@"sdkParam"];
NSString *orderString = [NSString stringWithFormat:@"%@",sdkParam];
// NOTE: 调用支付结果开始支付
[[AlipaySDK defaultService] payOrder:orderString fromScheme:appScheme callback:^(NSDictionary *resultDic) {
NSLog(@"payOrder reslut = %@",resultDic);
[[NSNotificationCenter defaultCenter] postNotificationName:@"AliPayEnded" object:resultDic];
}];
4.支付宝回调自己的app
appDelegate中处理回调的url, 通过通知的方式通知订单页面做出跳转响应。
为了兼容iOS的不同版本，需要在不同的openURL代理中处理支付宝的回调代码
// 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"]) { //支付宝付款成功后的回调
[[AlipaySDK defaultService] processOrderWithPaymentResult:url standbyCallback:^(NSDictionary *resultDic) {
NSLog(@"AliPay result = %@",resultDic);
[[NSNotificationCenter defaultCenter] postNotificationName:@"AliPayEnded" object:resultDic];
}];
return YES;
}
//iOS9 之前使用的接口
- (BOOL)application:(UIApplication *)application
openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation
{
if ([url.host isEqualToString:@"safepay"]) {
//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(@"AliPay result = %@",resultDic);
[[NSNotificationCenter defaultCenter] postNotificationName:@"AliPayEnded" object:resultDic];
}];
return YES;
}
5.订单页收到支付返回通知后的处理
- (void)aliPayEndedWithNotification:(NSNotification *)notification {
NSDictionary *resultDict = notification.object;
NSString *resultStatus = [NSString stringWithFormat:@"%@", [resultDict objectForKey:@"resultStatus"]];
NSString *resultMessage = resultDict[@"memo"];
NSInteger statusCode = [resultStatus integerValue];
switch (statusCode) {
case AliPayResultSucceed:
case AlipayResultInProgress:
case AlipayResultUnkown:
{
//跳转逻辑
//[self pushToOrderInfoVC];
}
break;
case AliPayResultCancelledByUser:
case AliPayResultNetworkError:
default:
{
[self.view showInfo:resultMessage autoHidden:YES interval:2.0];
}
break;
}
}
注意事项：
- 调起支付宝SDK时传入的orderPay字符串参数是按一定顺序拼接起来的加过签的参数串，通常由服务端拼接好传给前端。
- 调起支付宝SDK时的fromScheme是支付宝回调app的重要依据，通常为app在info中配置的URL Scheme.
参考文章：
2. 微信支付SDK集成
1.下载并集成微信SDK，如果之前集成过友盟或微信分享，则无需再集成。
2.Project-Info中，添加微信的AppKey
微信AppKey.png
3.appDelegate.m中注册微信的appkey
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
//微信支付
[WXApi registerApp:SA_WX_APPKEY];
}
4.调起微信SDK
PayReq *request = [[PayReq alloc] init];
request.partnerId = reqParam[@"partnerid"];
request.prepayId= reqParam[@"prepayid"];
request.package = @"Sign=WXPay";
request.nonceStr= dict[@"nonceStr"];
request.timeStamp = [dict[@"timestampLong"] intValue];
request.sign = reqParam[@"sign"];
[WXApi sendReq:request];
5.微信支付结束后的回调
// 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.absoluteString hasPrefix:SA_WX_APPKEY]) {
return [WXApi handleOpenURL:url delegate:[WXApiManager sharedManager]];
}
}
//iOS9以前的版本
- (BOOL)application:(UIApplication *)application
openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation
{
if ([url.absoluteString hasPrefix:SA_WX_APPKEY]) {
return [WXApi handleOpenURL:url delegate:[WXApiManager sharedManager]];
}
微信的回调是通过onResp:代理处理的，故封装了一个单例类WXApiManager来处理微信的回调。
WXApiManager.h
#import "WXApi.h"
@interface WXApiManager : NSObject <WXApiDelegate>
+ (instancetype)sharedManager;
@end
WXApiManager.m
@interface WXApiManager()
@end
@implementation WXApiManager
#pragma mark - LifeCycle
+ (instancetype)sharedManager {
static dispatch_once_t onceToken;
static WXApiManager *instance;
dispatch_once(&onceToken, ^{
instance = [[WXApiManager alloc] init];
});
return instance;
}
#pragma mark - WXApiDelegate
- (void)onResp:(BaseResp *)resp
{
if([resp isKindOfClass:[PayResp class]]){
[[NSNotificationCenter defaultCenter] postNotificationName:@"WXPayEnded" object:resp];
//支付返回结果，实际支付结果需要去微信服务器端查询
NSString *strMsg;
switch (resp.errCode) {
case WXSuccess:
strMsg = @"支付结果：成功！";
NSLog(@"支付成功－PaySuccess，retcode = %d", resp.errCode);
break;
default:
strMsg = [NSString stringWithFormat:@"支付结果：失败！retcode = %d, retstr = %@", resp.errCode,resp.errStr];
NSLog(@"错误，retcode = %d, retstr = %@", resp.errCode,resp.errStr);
break;
}
}
}
@end
6.订单页收到支付返回通知后的处理
- (void)wxPayEndedWithNotification:(NSNotification *)notification {
id object = notification.object;
if ([object isKindOfClass:[BaseResp class]]) {
BaseResp *baseResp = (BaseResp *)object;
switch (baseResp.errCode) {
case WXSuccess:
{
//跳转逻辑
//[self pushToOrderInfoVC];
}
break;
case WXErrCodeUserCancel:
break;
default:
{
[self.view showInfo:baseResp.errStr autoHidden:YES interval:2.0];
}
break;
}
}
}
注意事项
iOS9以后，微信／支付宝支付成功后点击左上角的返回也能返回到app，但是会收不到微信／支付宝的回调信息。
解决方案:
在支付页面监听UIApplicationDidBecomeActiveNotification,当监听到返回app的事件后，主动请求服务端，如果发现order已经支付，则主动跳转。
