[英]React native react-navigation variable inside other component
在我的标题组件中,有一个菜单图标。 当我按下图标时,它应该打开DrawerNavigation。
我已经尝试添加
const { navigate } = this.props.navigation;
但不幸的是,它不能解决问题。
我的标头组件:
import React, { Component } from 'react';
import { View, Text, Image, Button } from 'react-native';
import Icon from 'react-native-vector-icons/Ionicons';
import styles from '../assets/stylesheets/theme';
export default class Header extends Component {
render() {
return (
<View style={styles.header}>
<Icon onPress={() => navigate('DrawerToggle')} name="md-menu" style={styles.headerIcon} />
<Image source={require('../assets/images/f1today.png')} resizeMode="contain" style={styles.headerLogo} />
<View style={{ flex: 1 }} />
</View>
)
}
}
我的主屏幕上,导入了标题组件:
import React, { Component } from 'react';
import { View, Text, Button } from 'react-native';
import Header from '../../components/header';
import styles from '../../assets/stylesheets/theme'
export default class HomeScreen extends Component {
render() {
return(
<View style={styles.applicationView}>
<Header />
<Text>Home Screen</Text>
</View>
);
}
}
如何使用标题组件中的导航? 提前致谢。
更新资料
标头组件:
import React, { Component } from 'react';
import { View, Text, Image, Button } from 'react-native';
import Icon from 'react-native-vector-icons/Ionicons';
import styles from '../assets/stylesheets/theme';
export default class Header extends Component {
render() {
const { navigate } = this.props.navigation;
return (
<View style={styles.header}>
<Icon onPress={this.props.navigate('DrawerToggle')} name="md-menu" style={styles.headerIcon} />
<Image source={require('../assets/images/f1today.png')} resizeMode="contain" style={styles.headerLogo} />
<View style={{ flex: 1 }} />
</View>
)
}
}
主屏幕:
import React, { Component } from 'react';
import { View, Text, Button } from 'react-native';
import Header from '../../components/header';
import styles from '../../assets/stylesheets/theme'
export default class HomeScreen extends Component {
render() {
return(
<View style={styles.applicationView}>
<Header navigation={this.props.navigation} />
<Text>Home Screen</Text>
</View>
);
}
}
您需要像这样将导航对象传递到标头组件
<Header navigation={this.props.navigation} />
您的标头组件现在应该是这样的
export default class Header extends Component {
render() {
return (
<View style={styles.header}>
<Icon onPress={this.openDrawer.bind(this)} name="md-menu" style={styles.headerIcon} />
<Image source={require('../assets/images/f1today.png')} resizeMode="contain" style={styles.headerLogo} />
<View style={{ flex: 1 }} />
</View>
)
}
openDrawer() {
this.props.navigation.navigate('DrawerToggle');
}
}
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