支付宝回调监控，支付宝客户端和网页支付宝回调方式不一样

支付宝客户端回调会在AppDelegate里面：

- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString *,id> *)options{
    //支付宝支付
    if ([url.host isEqualToString:@"safepay"]) {
        [[AlipaySDK defaultService] processOrderWithPaymentResult:url standbyCallback:^(NSDictionary *resultDic) {
            //利用代理监听支付宝回调，
            if (_alipayDelegate && [_alipayDelegate respondsToSelector:@selector(getAlipayPayResult:)]) {
                [_alipayDelegate getAlipayPayResult:resultDic];
            }
            //充值回调
            if (_alipayRechargeDelegate && [_alipayRechargeDelegate respondsToSelector:@selector(getAlipayRechargeResult:)]){
                [_alipayRechargeDelegate getAlipayRechargeResult:resultDic];
            }
        }];
        return YES;
    }

 网页支付宝回调在调起支付宝支付时：

 [[AlipaySDK defaultService] payOrder:orderString fromScheme:@"应用程序shemes" callback:^(NSDictionary *resultDic) {
                //没有安装支付宝，网页支付宝回调
                [self handleAlipayWith:resultDic];
            }];