react-navigation 3.x 使用

2019-05-29  本文已影响0人  evanleeeee
官网文档:https://reactnavigation.org/docs/zh-Hans/getting-started.html
1、安装react-navigation
yarn add react-navigation
# or with npm
# npm install --save react-navigation
2、安装 react-native-gesture-handler。 如果你使用 Expo,就什么都不需要做,他已经包含在 SDK 中 了
yarn add react-native-gesture-handler
# or with npm
# npm install --save react-native-gesture-handler

Link 所有的原生依赖

react-native link react-native-gesture-handler

iOS 啥都不用做

为了完成 react-native-gesture-handler在 Android 上的安装,请确保在 MainActivity.java 上完成如下修改:

import com.facebook.react.ReactActivityDelegate;
import com.facebook.react.ReactRootView;
import com.swmansion.gesturehandler.react.RNGestureHandlerEnabledRootView;
 
public class MainActivity extends ReactActivity {
 
    ...
 
    @Override
    protected ReactActivityDelegate createReactActivityDelegate() {
        return new ReactActivityDelegate(this, getMainComponentName()) {
            @Override
            protected ReactRootView createRootView() {
                return new RNGestureHandlerEnabledRootView(MainActivity.this);
            }
        };
    }
}
顶部导航
import { createStackNavigator, createAppContainer } from 'react-navigation'
 
const RootStack = createStackNavigator({})
 
const AppContainer = createAppContainer(RootStack); //与2.x不同,需要用到createAppContainer
 
export default class Navigation extends Component {
    render() {
        return (
            <AppContainer/> //2.x返回的是 <RootStack/>
        )
    }
}
头部导航栏样式属性
  1. 路由的选项:
  1. 视觉选项:
底部导航样式属性
  1. initialRouteName: 第一次加载时初始选项卡路由的 routeName
  2. order:定义选项卡顺序的 routeNames 数组
  3. tabBarOptions
import React, { Component } from 'react'
 
import { createStackNavigator, createBottomTabNavigator, createAppContainer } from 'react-navigation'
 
import Home from './Home'
import Mine from './Mine'
 
const StackNavigator = createStackNavigator(
    {
        Home,
        Mine,
    },
    {
        initialRouteName: 'Home',
        defaultNavigationOptions: {
            headerStyle: {
                // backgroundColor: '#f4511e',
            },
            headerBackTitle: null,
            // headerTintColor: '#fff',
            headerTitleStyle: {
                fontWeight: 'bold',
            },
            header: null
        }
    }
)
const HomeStack = createStackNavigator({Home});
const MineStack = createStackNavigator({Mine});
 
const BottomTabNavigator = createBottomTabNavigator(
    {
        Home,
        Mine,
    },
    {
        initialRouteName: 'Home', //第一次加载时初始选项卡路由的 routeName
        order: ['Mine','Home'], //定义选项卡顺序的 routeNames 数组
        tabBarOptions: {
            activeTintColor: 'red',//标签和图标选中颜色
            activeBackgroundColor: 'yellow',//导航选中背景色
            inactiveTintColor: '#000', //标签和图标未选中颜色
            inactiveBackgroundColor: 'white',//导航未选中背景色
            showIcon: true,//是否显示 Tab 的图标,默认不显示
            style: {
                backgroundColor: 'yellow',//tabBar背景色
                height: 49
            },
            // labelStyle 选项卡标签的样式对象
            // tabStyle 选项卡的样式对象
        },
    }
)
 
// const AppContainer = createAppContainer(StackNavigator); 顶部导航
const AppContainer = createAppContainer(BottomTabNavigator); //底部导航
 
export default class Navigation extends Component {
    render() {
        return (
            <AppContainer/>
        )
    }
}

还有一些不常用的属性与样式没有用到,具体的可以查看官方:API

附加:带有icon图标的底部导航,用到了 nativebasereact-native-vector-icons

import React, { Component } from 'react';
import { createAppContainer, createBottomTabNavigator } from 'react-navigation'
import { Icon } from 'native-base';
 
import App from './App'
import Car from './Car'
import Camera from './Camera'
import Search from './Search'
 
const SELECTED_COLOR = 'white';
const UNSELECTED_COLOR = '#000';
const SELECTED_BGCOLOR = 'blue';
const UNSELECTED_BGCOLOR = 'deepskyblue';
const ORDER = ['App','Search','Camera','Car'];
 
export class TabBarIcon extends Component {
    render() {
        return(
            <Icon name={this.props.name}
                style={{
                    marginBottom: -5,
                    marginRight: 2,
                    fontSize: 24,
                    color: this.props.color,
                }}
            />
        )
    }
}
 
const BottomTabNavigator = createBottomTabNavigator(
    {
        App: {
            screen: App,
            navigationOptions: {
                tabBarLabel: '首页',
                tabBarIcon:({focused}) => (
                    <TabBarIcon
                        focused={focused}
                        name={'apps'}
                        color={focused ? SELECTED_COLOR : UNSELECTED_COLOR}
                    />
                )
            }
        },
        Car: {
            screen: Car,
            navigationOptions: {
                tabBarLabel: '汽车',
                tabBarIcon:({focused}) => (
                    <TabBarIcon
                        focused={focused}
                        name={'car'}
                        color={focused ? SELECTED_COLOR : UNSELECTED_COLOR}
                    />
                )
            }
        },
        Camera: {
            screen: Camera,
            navigationOptions: {
                tabBarLabel: '相机',
                tabBarIcon:({focused}) => (
                    <TabBarIcon
                        focused={focused}
                        name={'camera'}
                        color={focused ? SELECTED_COLOR : UNSELECTED_COLOR}
                    />
                )
            }
        },
        Search: {
            screen: Search,
            navigationOptions: {
                tabBarLabel: '搜索',
                tabBarIcon:({focused}) => (
                    <TabBarIcon
                        focused={focused}
                        name={'search'}
                        color={focused ? SELECTED_COLOR : UNSELECTED_COLOR}
                    />
                )
            }
        }
    },
    {
        initialRouteName: 'App',
        order: ORDER,
        tabBarOptions: {
            activeTintColor: SELECTED_COLOR,
            activeBackgroundColor: SELECTED_BGCOLOR,
            inactiveTintColor: UNSELECTED_COLOR,
            inactiveBackgroundColor: UNSELECTED_BGCOLOR,
            style: {
                backgroundColor: 'pink',
            },
            labelStyle: {
                paddingBottom: 5,
                fontSize: 14,
            }
        }
    }
)
const AppContainer = createAppContainer(BottomTabNavigator); 
 
export default class FooterTabsExample extends Component {
    render() {
        return (
            <AppContainer/>
        )
    }
}
tabBarIcon:({focused}) => (
    <TabBarItem
        focused={focused}
        normalImage={require('../icon/home.png')}
        selectedImage={require('../icon/home_selected.png')}
    />
)
 
 export class TabBarItem extends Component {
    render() {
        return(
            <Image source={ this.props.focused 
                ? this.props.selectedImage 
                : this.props.normalImage }
                style={ { width:24,height:24 } }
            />
        )
    }
}
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