以下代码在我的EXPO Native Native项目中运行良好:
const AppNavigator = createSwitchNavigator({
Loading:Loading,
Auth: AuthenticationNavigator,
Main: MainNavigator
});
const AppContainer = createAppContainer(AppNavigator);
class App extends React.Component {
render() {
return <AppContainer/>
}
}
我想将screenProps
添加到我的createSwitchNavigator
中。我使用了this example。这是我的代码:
const AppNavigator = createSwitchNavigator({
Loading:Loading,
Auth: AuthenticationNavigator,
Main: MainNavigator
});
const AppNavigatorWithProps=(<AppNavigator screenProps={{testing:true}} />)
const AppContainer = createAppContainer(AppNavigatorWithProps);
class App extends React.Component {
render() {
return <AppContainer/>
}
}
我收到以下错误:
TypeError: undefined is not an object (evaluating 'Component.router.getStateForAction')
This error is located at:
in NavigationContainer (at App.js:42)
in App (at withExpoRoot.js:22)
in RootErrorBoundary (at withExpoRoot.js:21)
in ExpoRootComponent (at renderApplication.js:34)
in RCTView (at View.js:44)
in RCTView (at View.js:44)
in AppContainer (at renderApplication.js:33)
我在做什么错了?
答案 0 :(得分:1)
class App extends React.Component {
render() {
return <AppContainer screenProps={{ testing: true }} />
}
}
赞
答案 1 :(得分:0)
您不需要用AppNavigator
或其他任何东西包装createAppContainer
,
只需使用下面的周代答案即可:
class App extends React.Component {
render() {
return <AppNavigator screenProps={{
//pass any object you need for ex
testing:true
}}/>
}
}
但是我添加了如下有关使用道具的其他信息:
要访问这些道具,您只需使用:
console.log(this.props.screenProps.testing)
在createSwtichNavigator
中定义的任何屏幕上,
例如在您的代码中:
Loading, Auth, and Main
应该得到道具
class Loading extends React.Component {
componentWillMount(){
console.log(this.props.screenProps.testing)
}
render() {
return (<View/>)
}
}
注意: 我已经使用
测试了代码React Navigation V2