我正在使用React Native和React Navigation构建一个应用程序,我已经进行了所有设置,并且可以正常工作,但是,当抽屉被触发时,图像会多次更新,从而导致 spikes 和失败触发其中包含的按钮。
例如:
我正在使用:
react: 16.8.3,
react-native: 0.59.1,
react-native-ui-kitten: ^3.1.2,
react-navigation: ^3.4.0
我正在使用RN的第3版,并试图解决问题,所以我又回到了第2版,但没有成功。
我在执行图像的方法中添加了一些警告,并发现只要有此更新,它就会被调用。
我已经以不同的大小和格式更改了图像,但这也没有帮助。
我已经在手机和仿真器上进行了测试,但没有成功。
抽屉:
import React, { Component } from 'react';
import {
TouchableHighlight,
View,
ScrollView,
Image,
Platform,
StyleSheet,
} from 'react-native';
import {
RkStyleSheet,
RkText,
RkTheme,
} from 'react-native-ui-kitten';
import Icon from 'react-native-vector-icons/Ionicons';
import Routes from '../../config/navigation/routes';
import logo from '../../assets/smallLogo.png';
export default function SideNavigation(props) {
const onMenuItemPressed = item => {
props.navigation.navigate(item.id);
};
const renderIcon = () => (<Image style={styles.image} source={logo}/>);
const renderMenuItem = item => (
<TouchableHighlight style={styles.container} key={item.id} underlayColor={RkTheme.current.colors.button.underlay} activeOpacity={1} onPress={() => onMenuItemPressed(item)}>
<View style={styles.content}>
<View style={styles.content}>
<RkText style={styles.icon} rkType='moon primary xlarge'><Icon name={item.icon} size={25}/></RkText>
<RkText rkType='regular'>{item.title}</RkText>
</View>
{/*<RkText rkType='awesome secondaryColor small'>{FontAwesome.chevronRight}</RkText>*/}
</View>
</TouchableHighlight>
);
const renderMenu = () => Routes.map(renderMenuItem);
return (
<View style={styles.root}>
<ScrollView showsVerticalScrollIndicator={false}>
<View style={[styles.container, styles.content]}>
{renderIcon()}
</View>
{renderMenu()}
</ScrollView>
</View>
)
}
const styles = RkStyleSheet.create(theme => ({
container: {
height: 60,
paddingHorizontal: 16,
borderTopWidth: StyleSheet.hairlineWidth,
borderColor: theme.colors.border.base,
},
root: {
paddingTop: Platform.OS === 'ios' ? 20 : 0,
backgroundColor: theme.colors.screen.base
},
content: {
flex: 1,
flexDirection: 'row',
alignItems: 'center',
},
icon: {
marginRight: 13,
},
image:{
resizeMode: 'contain',
maxWidth: 125
}
}));
抽屉设置:
import React, {Component} from 'react';
import { View, Text} from 'react-native';
import Login from './screens/login';
import PasswordRecovery from './screens/passwordRecovery';
import Home from './screens/home';
import SideNavigator from './components/sideMenu';
import { bootstrap } from './config/bootstrap';
import {
createDrawerNavigator,
createStackNavigator,
createAppContainer
} from 'react-navigation';
import { withRkTheme } from 'react-native-ui-kitten';
import NavBar from './components/navBar';
import AppRoutes from './config/navigation/routesBuilder';
import Splash from './screens/splash';
bootstrap();
const renderHeader = (navigation, props) => {
const ThemedNavigationBar = withRkTheme(NavBar);
return (
<ThemedNavigationBar navigation={navigation} headerProps={props} />
);
};
const App = createStackNavigator({
Splash: Splash,
Login: Login,
PasswordRecovery: PasswordRecovery,
Main: createDrawerNavigator({
...AppRoutes
},{
contentComponent: props => {
const SideNav = withRkTheme(SideNavigator);
return <SideNav {...props}/>
}
}),
},
{
headerMode: 'none',
})
export default createAppContainer(App);
路由设置:
import React from 'react';
import _ from 'lodash';
import { createStackNavigator } from 'react-navigation';
import { withRkTheme } from 'react-native-ui-kitten';
import transition from './transitions';
import Routes from './routes';
import NavBar from '../../components/navBar';
const main = {};
const flatRoutes = {};
const routeMapping = (route) => ({
screen: withRkTheme(route.screen),
title: route.title,
});
(Routes).forEach(route => {
flatRoutes[route.id] = routeMapping(route);
main[route.id] = routeMapping(route);
route.children.forEach(nestedRoute => {
flatRoutes[nestedRoute.id] = routeMapping(nestedRoute);
});
});
const renderHeader = (navigation, props) => {
const ThemedNavigationBar = withRkTheme(NavBar);
return (
<ThemedNavigationBar navigation={navigation} headerProps={props} />
);
};
const DrawerRoutes = Object.keys(main).reduce((routes, name) => {
const rawRoutes = routes;
rawRoutes[name] = {
name,
screen: createStackNavigator(flatRoutes, {
initialRouteName: name,
headerMode: 'screen',
cardStyle: { backgroundColor: 'transparent' },
transitionConfig: transition,
defaultNavigationOptions: ({ navigation }) => ({
gesturesEnabled: false,
header: (props) => renderHeader(navigation, props),
}),
}),
};
return rawRoutes;
}, {});
const AppRoutes = DrawerRoutes;