Question

如何在屏幕上访问MobX存储，就像在React中注入存储一样？

class LoginScreen extends StatefulWidget {
  @override
  _LoginScreenState createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> { 
  final _store = exStore();
  void init() {
   _store.setTitle('foo');
  }
}

导航到主屏幕时，我需要获取数据标题

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}



class _HomeScreenState extends State<HomeScreen> { 
  final _store = exStore();
  void init() {
   print(_store.title); // return null
  }
}

我需要_store.title返回'foo'。

Answer 1

很简单，您只需要在任何小部件外部创建实例即可，使其具有全局性，如下所示。

屏幕A

store = exStore();

class LoginScreen extends StatefulWidget {
  @override
  _LoginScreenState createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> { 
  void init() {
   store.setTitle('foo');
  }
}

屏幕B

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}



class _HomeScreenState extends State<HomeScreen> { 
  void init() {
   print(store.title); // return null
  }
}

从其他屏幕上颤抖的访问存储mobx

1 个答案: