[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-01-23 UTC."],[],[],null,["# firebase::app_check::AppCheckListener Class Reference\n\nfirebase::app_check::AppCheckListener\n=====================================\n\n\n**This is an abstract class.**\n\n\n`#include \u003capp_check.h\u003e`\n\nBase class used to receive messages when [AppCheck](/docs/reference/cpp/class/firebase/app-check/app-check#classfirebase_1_1app__check_1_1_app_check) token changes.\n\nSummary\n-------\n\n| ### Constructors and Destructors ||\n|---|---|\n| [~AppCheckListener](#classfirebase_1_1app__check_1_1_app_check_listener_1a82bb760dcc9be35267062ed607fa7570)`()` ||\n\n| ### Public functions ||\n|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|\n| [OnAppCheckTokenChanged](#classfirebase_1_1app__check_1_1_app_check_listener_1a9d0e527da64f1cf418559bee0b20622e)`(const `[AppCheckToken](/docs/reference/cpp/struct/firebase/app-check/app-check-token#structfirebase_1_1app__check_1_1_app_check_token)` & token)=0` | `virtual void` This method gets invoked on the UI thread on changes to the token state. |\n\nPublic functions\n----------------\n\n### OnAppCheckTokenChanged\n\n```c++\nvirtual void OnAppCheckTokenChanged(\n const AppCheckToken & token\n)=0\n``` \nThis method gets invoked on the UI thread on changes to the token state.\n\nDoes not trigger on token expiry. \n\n### \\~AppCheckListener\n\n```c++\nvirtual ~AppCheckListener()=0\n```"]]
