之前用的targetsdk是33，调用支付接口没有问题，但最近因为升级开发工具，将targetsdk改成了35. 调用支付接口报错：sendUsingPendingIntent fail, ex = com.one.aivoice: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent. Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.

安卓前端和php后端的完整代码哪里能找到？官方SDK里列了一大堆，说的有点吞吞吐吐，容易把人搞迷糊。