flutter - A Provider 被处理后被使用 - Multiprovider

Question

在我添加了 ProfileLogic 的依赖之后至 LocationLogic应用程序启动时出现以下错误:

I/flutter (14674): A LocationLogic was used after being disposed.

I/flutter (14674): Once you have called dispose() on a LocationLogic, it can no longer be used.

这些是我的提供者:

      providers: [
        ChangeNotifierProvider(builder: (_) => ConnectivityLogic()),
        ChangeNotifierProxyProvider<ConnectivityLogic, ProfileLogic>(
          builder: (context, connectivity, previousMessages) =>
              ProfileLogic(connectivity.isOnline),
          initialBuilder: (BuildContext context) => ProfileLogic(false),
        ),
        ChangeNotifierProxyProvider<ProfileLogic, LocationLogic>(
          builder: (context, profileLogic, previousMessages) =>
              LocationLogic(profileLogic.profile),
          initialBuilder: (BuildContext context) => LocationLogic(null),
        ),
        ChangeNotifierProvider(builder: (_) => SignUpModel()),
        ChangeNotifierProxyProvider<ConnectivityLogic, WorkLogic>(
          builder: (context, connectivity, previousMessages) =>
              WorkLogic(connectivity.isOnline),
          initialBuilder: (BuildContext context) => WorkLogic(false),
        ),
        ChangeNotifierProvider(builder: (_) => OrderLogic()),
      ]

奇怪的是，一切正常，即使有那个错误。

Answer 1

我认为你处理了一个包含这些提供者的小部件。尝试将所需的提供程序在树中移到更高的位置。所以如果你有:

        MaterialApp(
          home: MultiProvider(
            providers: [...],
            child: child,
            )
        )

做类似的事情:

        MultiProvider(
          providers: [...],
          child: MaterialApp(
            home: child,
          )
        )

如果这无济于事，您需要提供更多背景信息。例如。什么是小部件树。