Flutter 只是一般性问题-颤振Xclint警告和更多

这一切意味着什么。我的应用程序还能用，所以我不担心

Note: C:\Users\dylan\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_core-1.0.4\android\src\main\java\io\flutter\plugins\firebase\core\FlutterFirebaseCorePlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\Users\dylan\flutter\.pub-cache\hosted\pub.dartlang.org\cloud_firestore-1.0.3\android\src\main\java\io\flutter\plugins\firebase\firestore\FlutterFirebaseFirestorePlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\Users\dylan\flutter\.pub-cache\hosted\pub.dartlang.org\cloud_firestore-1.0.3\android\src\main\java\io\flutter\plugins\firebase\firestore\streamhandler\TransactionStreamHandler.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Note: C:\Users\dylan\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-1.0.1\android\src\main\java\io\flutter\plugins\firebase\auth\FlutterFirebaseAuthPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
C:\Users\dylan\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_storage-8.0.4\android\src\main\java\io\flutter\plugins\firebase\storage\FlutterFirebaseStoragePlugin.java:38: warning: [deprecation] Registrar in PluginRegistry has been deprecated
  public static void registerWith(PluginRegistry.Registrar registrar) {