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我在我的應用程序中有2組屏幕。如何在反應導航應用程序中授權用戶?
1)AuthorizedScreens
2)一旦NotAuthorizedScreens
的應用程序加載我要檢查,如果用戶登錄或不?如果用戶已登錄,則該應用加載AuthorizedScreens,如果不是,則加載NotAuthorizedScreens。我如何實現這一目標?我已經包含的示例,但不是可用的代碼,但我想這就是它的可能性!
App.js
import React from 'react';
import { AsyncStorage } from 'react-native';
import { Provider } from 'react-redux';
import { DrawerNavigator, StackNavigator } from 'react-navigation';
import store from './store';
export default class App extends React.Component {
async componentWillMount() {
const token = await AsyncStorage.getItem('facebook_token');
}
render() {
const AuthorizedScreens = DrawerNavigator(...
const NotAuthorizedScreens = DrawerNavigator(...
return (
<Provider store={store}>
{ (this.token) ? <AuthorizedScreens /> : <NotAuthorizedScreens /> }
</Provider>
);
}
}
注意! 我有一個行動的創建者,檢查用戶是否登錄。但我不能把它連接到應用成分,因此我決定用AsyncStorage來存儲facebook_token,如果存在令牌是指用戶登錄,如果沒有用戶不...
"dependencies": {
"expo": "^20.0.0",
"react": "16.0.0-alpha.12",
"react-native": "https://github.com/expo/react-native/archive/sdk-20.0.0.tar.gz",
"react-navigation": "^1.0.0-beta.11",
"react-redux": "^5.0.6",
"redux": "^3.7.2",
"redux-thunk": "^2.2.0"
}