example A new Flutter project. 注意 安卓测试在 FaceUnityUI/FaceUnity_Plugin/android/src/main/kotlin/com/example/faceunity_plugin/data/authpack.java 把相芯密钥填上 ios测试在 FaceUnityUI/FaceUnity_Plugin/ios/Classes/Tools/authpack.h 把相芯密钥填上