已解决.

一切都配置正确.上面的代码按预期工作.唯一的问题是，我忘记在 iOS 项目设置中加载 Entitlements.plist 文件.这就是我得到 canmakepaymentsUsingNetwork(networks) 总是 false 的主要原因.

Everything was configured correctly. Above code works as expected. Only thing is, I forgot to load Entitlements.plist file in iOS Project Settings. That is the main reason why i am getting canmakepaymentsUsingNetwork(networks) always false.