AOSP ~ Binder

獲取調用者的PID，UID

Java

int pid = Binder.getCallingPid();
int uid = Binder.getCallingUid();
String callingApp = mContext.getPackageManager().getNameForUid(uid);

C++

IPCThreadState::self()->getCallingPid();
IPCThreadState::self()->getCallingUid());