【reactNative混合安卓开发~使用问题持续更】-Toy模板网

这篇具有很好参考价值的文章主要介绍了【reactNative混合安卓开发~使用问题持续更】。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

reactNative开发移动端

用reactNative（VsCode编译器）开发移动端界面，Android开发后端接口（Android Studio编译器）。
RN官网（搭建环境于API手册）：https://reactnative.cn/docs/environment-setup

reactNative界面开发

背景： reactNative提供组件，或者使用第三方库提供的组件，数据(包含规则校验)由 yup、formik提供，除启动界面：login,register,splash等账户登录后，一般使用导航栏（@react-navigation/drawer、‘npm install react-native-gesture-handler react-native-reanimated’）包含抽屉（Drawer Navigator）、tab切换（Bottom Tabs Navigator）进行路由导航（一般适用于简单页面切换），详情API请看https://reactnavigation.org/docs/drawer-navigator
RN前端开发技巧：
1\写了一系列组件或者网上推荐好用的组件放到component文件夹下，每个组件用export default xxx;【其他界面也可以加default】，定义index.ts放在component文件夹下，index.ts中写各个组件的export {default as Header} from "./Header";，集中一起导出，使用时在界面中引入import { theme, Box, Text, Header, LableValueInput, Error, Loading, ConfirmModal, } from '~/component';
例如: index.ts 其他界面也可以借鉴index.ts的思路

export {default as Container} from "./Container";
export {default as Footer} from "./Footer";
export {default as Button} from "./Button";
export {default as theme,Text,Box} from "./Theme";
export {default as RoundedIcon} from "./RoundedIcon";
export {default as Header} from "./Header";


export {default as TextInput, } from "./Form/TextInput";
export {default as TextInputRightBtn} from "./Form/TextInputRightBtn";
export {default as LableValueInput} from "./Form/LableValueInput";
export {default as CusCheckbox} from "./Form/CusCheckbox";

export { AuthContext} from "./context/AuthContext";
export { UserContext} from "./context/UserContext";
export { default as Loading} from "./Loading";
export { default as Error} from "./Error";
// export { default as IDCard0} from "./IDCard0";
// export { default as Tabs} from "./Tabs";
// export { default as UpgradeAppModel} from "./UpgradeAppModel";
export { default as ConfirmModal} from "./ConfirmModal";

前端init.bat文件部分组件

rem 界面基础组件
yarn add react-native
yarn add @ant-design/react-native

rem  界面数据(formik)与表单验证(Yup验证规则)
npm install yup
npm install formik

rem 统一样式模板
yarn add @shopify/restyle

rem 菜单导航栏
yarn add @react-navigation/drawer
yarn add @react-navigation/native
yarn add react-native-gesture-handler react-native-reanimated

rem 其他组件（第三方）
yarn add react-native-keyboard-aware-scroll-view
npm i uuid-random
rem 底部滑出的下拉选择矿（其他方向也可）
yarn add react-native-picker

第三方组件解析

1、定义theme主题@shopify/restyle；菜单导航@react-navigation/drawer、@react-navigation/native；

（1）实现修改少量参数切换主题api文档地址：https://github.com/Shopify/restyle
（2）navigation相关文档，可配合context使用上下文和hook进行数据传递和接口调用，刺激界面刷新（需要搜索案例）
https://reactnavigation.org/docs/drawer-navigator
使用：
在navigation界面或者app.js中定义<ThemeProvider theme={theme}></ThemeProvider>,颜色可取 theme.themecolors.primary等等。

import { createDrawerNavigator } from '@react-navigation/drawer';
import { NavigationContainer } from '@react-navigation/native';

import {
   ThemeProvider,
   createBox,
   createText,
   createRestyleComponent,
   createVariant,
   VariantProps,
 } from '@shopify/restyle';
 import theme from '~/component/Theme';
const Drawer = createDrawerNavigator();
export default function XXXDrawerNavigator() {
	return (
   <ThemeProvider theme={theme}>
    <NavigationContainer>
      <Drawer.Navigator initialRouteName="Home" otherProps...>
      <Drawer.Screen name="Home" component={HomeScreen}   options={{
           title: 'XXX配置',
           otherProps...,
        }}></Drawer.Screen>
     <Drawer.Screen name="Notifications" component={NotificationsScreen}   options={{
           title: 'XXX分析',
           drawerIcon: ({focused, size}) => (
              <Ionicons
                 name="checkmark-circle-outline"
                 size={size}
                 color={focused ? '#7cc' : '#ccc'}
              />
           ),
        }}></Drawer.Screen>
	</Drawer.Navigator>
    </NavigationContainer>
  </ThemeProvider>
}

RN问题记录

1、使用theme.js写的公共组件报错（funcMap[props] undefined）

原因：import @shopify/restyle没有定义 <ThemeProvider theme={theme}></ThemeProvider>
解决方式：在根页面定义<ThemeProvider theme={theme}><ThemeProvider>,或单独使用的页面也要加这个。
案例如下
描述：导航页TCPZDrawerNavigator.js引入ThemeProvider标签；使用页面YDLXDTList.js应用组件LableValueInput；定义公共组件LableValueInput.js（使用了@shopify/restyle、theme）
使用公共组件和统一样式:代码只包含使用公用组件LableValueInput用法，样式部分可能会报错，需要修改

import React, { useState } from 'react';
import * as Yup from 'yup';
import { Formik, useFormik, useField } from 'formik';
// 原生接口
import { YDLXDTService, RunActivity } from '~/native/nativeModules';
import {Container,Button,Box,CusCheckbox,Header,UserContext,LableValueInput,ConfirmModal, Error} from  '~/components'

//模板校验规则
const ydlxdtSchema = Yup.object().shape({
    mc: Yup.string()
      // 只能输入数字、字母、汉字
      .matches( /^[\da-zA-Z\u4E00-\u9FA5]+$/u,'图层名称存在违规字符，请重新输入！')
      .required('图层名称必填'),

	lx: Yup.string()
    .matches( /^[\da-zA-Z_\u4E00-\u9FA5\-.]+$/u,'矢量数据类型存在违规字符，请重新输入！'),
    address: Yup.string()
      .matches( /^[\da-zA-Z_\u4E00-\u9FA5\-.]+$/u,'详细地址存在违规字符，请重新输入！')
      .required('详细地址必填'),

    dh: Yup.string()
    .matches( /^[\da-zA-Z_\u4E00-\u9FA5\-.]+$/u,'地号存在违规字符，请重新输入！'),
    zValue: Yup.string()
    .matches( /^[\da-zA-Z\u4E00-\u9FA5]+$/u,'证书编号的字存在违规字符，请重新输入！')
    .required('证书编号的字必填'),
    hValue: Yup.string()
    .matches( /^[\da-zA-Z\u4E00-\u9FA5]+$/u,'证书编号的号存在违规字符，请重新输入！')
	.required('证书编号的号必填'),

      syqmj: Yup.number(),
      
      page: Yup.number().min(1),
  });
  
export function YDLXDTList()  {
// 这里有其他定义的let [ydlxdt, setYdlxdt] = React.useState({});
const    { handleChange, handleBlur, handleSubmit, errors,touched,values,setFieldValue,setValues }=
    useFormik({validationSchema:ydlxdtSchema,
		initialValues: {
			tcid: ydlxdt?.tcid,
			xh: ydlxdt && ydlxdt.xh ? ydlxdt.xh : "",
         mc:ydlxdt &&  ydlxdt.mc?ydlxdt.mc:"",
         lx: ydlxdt && ydlxdt.lx?ydlxdt.lx:"",
          fz:ydlxdt && ydlxdt.fz?ydlxdt.fz:"",
          fzxh:ydlxdt && ydlxdt.fzxh ?ydlxdt.fzxh :'',
          tbzt:ydlxdt && ydlxdt.tbzt?ydlxdt.tbzt:"是",
          tbsj:ydlxdt && ydlxdt.tbsj?ydlxdt.tbsj:"",
          sfdt:ydlxdt && ydlxdt.sfdt? ydlxdt.sfdt:"",
          sfnbcc :ydlxdt &&  ydlxdt.sfnbcc? ydlxdt.sfnbcc:"",
          minScale: ydlxdt &&  ydlxdt.minScale?ydlxdt.minScale:"",
          maxScale: ydlxdt &&  ydlxdt.maxScale?ydlxdt.maxScale:"",
          sfjz: ydlxdt &&  ydlxdt.sfjz?ydlxdt.sfjz:"",
		  ipaddress:ydlxdt?.ipaddress,
		  sfquery: ydlxdt?.sfquery,
		  sfzyfx: ydlxdt?.sfzyfx
		  
		},
		onSubmit: values => {
			console.log('onsubmit');
			debugger;
			console.log(values);
          // 处理 每个字段是否包含敏感词，并直接替换为空
          handleSensitiveWord(values);
dataHandle.qzxx_save(userData.token,values,saveQzxxCallBack,refreshQZXXState);     
        },
      }
	);

return (
<SafeAreaView style={styles.container}>
			<Loading loading={loading}></Loading>
			<LableValueInput
          labelName="权利人"
          placeholder="请输入权利人"
          value={values.qlrxm}
          onChangeText={handleChange('qlrxm')}
          onBlur={handleBlur('qlrxm')}
          error={errors.qlrxm}
          touched={touched.qlrxm}
          borderBottomColor="text2"
          labelTextCss={styles.labelTextCss}
          style={styles.valueText}
       
        />
</SafeAreaView>
)

}

定义LableValueInput组件

import React, { useState,forwardRef } from "react";
import {View,StyleSheet,TextInput } from "react-native";
import Icon from 'react-native-vector-icons/Ionicons';
import theme,{ Box,Text} from "../Theme";
import RoundedIcon from "../RoundedIcon";


const  SIZE= theme.borderRadii.m*2;

const LableValueInput = forwardRef(({labelName,touched,error,borderBottomColor,labelTextCss,...props},ref)=>{
    debugger;
    const reColor = !touched ? "text2" : error ? "danger" : "primary";
    const color=theme.colors[reColor];
    return (
        <Box  flexDirection="row" 
        alignItems = "center" 
        borderBottomWidth={StyleSheet.hairlineWidth}
        {...{borderBottomColor}}
         
         >
            <Text style={labelTextCss}>{labelName}</Text>

                <TextInput underlineColorAndroid="transparent" flex={1}
                    
                    placeholderTextColor={color}
                    {...{ref}}
                    {...props}/>
        {(touched) && 
                (
                    <RoundedIcon
                    name={!error?"ios-checkmark":"ios-close"}
                    size={SIZE}
                    backgroundColor={!error?"primary":"danger"}
                    color="white" 
               />
                )
            }
        </Box>
    )
})
export default  LableValueInput;

导航页面TCPZDrawerNavigator.js引用theme、@shopify/restyle

import * as React from 'react';
import { Button, View } from 'react-native';
import { createDrawerNavigator } from '@react-navigation/drawer';
import { NavigationContainer } from '@react-navigation/native';

import HomeScreen from '~/module/screens/tcpz/HomeScreen';
import LxdtScreen from '~/module/screens/xmhc/YDLXDTList';
import Ionicons from 'react-native-vector-icons/Ionicons';
import MaterialIcons from 'react-native-vector-icons/MaterialIcons';

import {GEONavigator} from '~/module/navigators/GEONavigator';
import {YDLXDTNavigator} from '~/module/navigators/YDLXDTNavigator';


import CustomerDrawer from '~/module/navigators/CustomerDrawer';
import {
   ThemeProvider,
   createBox,
   createText,
   createRestyleComponent,
   createVariant,
   VariantProps,
 } from '@shopify/restyle';
 import theme from '~/component/Theme';
const Drawer = createDrawerNavigator();
const focused='#7cc';
const size = 22;
// 图层配置菜单
export default function TCPZDrawerNavigator() {
 
  return (
   <ThemeProvider theme={theme}>
    <NavigationContainer>
      <Drawer.Navigator initialRouteName="Home"  
      screenOptions={{headerShown:true,drawerActiveBackgroundColor:'#7cc',
      drawerActiveTintColor:'#fff', drawerInactiveTintColor:'#333', drawerLabelStyle:{marginLeft:-25,fontFamily:'Roboto-Medium',fontSize:15}}} 
      
      drawerContent={props =><CustomerDrawer {...props} />}>
        <Drawer.Screen name="Home" component={HomeScreen}   options={{
           title: '图层配置',
           drawerIcon: ({focused, size}) => (
              <Ionicons
                 name="globe-outline"
                 size={size}
                 color={focused ? '#7cc' : '#ccc'}
              />
           ),
        }}></Drawer.Screen>
        
            <Drawer.Screen name="YDLXDTNavigator" component={YDLXDTNavigator}   options={{
           title: '离线地图',
           drawerIcon: ({focused, size}) => (
              <MaterialIcons
                 name="workspaces-outline"
                 size={size}
                 color={focused ? '#7cc' : '#ccc'}
              />
           ),
        }}/>
           <Drawer.Screen name="GEONavigator" component={GEONavigator}   options={{
           title: 'Geo',
           drawerIcon: ({focused, size}) => (
              <MaterialIcons
                 name="workspaces-outline"
                 size={size}
                 color={focused ? '#7cc' : '#ccc'}
              />
           ),
        }}/>
      </Drawer.Navigator>
      
    </NavigationContainer>
     </ThemeProvider>
  );
}

2、安装react-native-reanimated后运行yarn android启动程序报错

解决方案：在本地 babel.config.js添加Reanimated’s babel plugin

  module.exports = {
    presets: [
      ...
    ],
    plugins: [
      ...
      'react-native-reanimated/plugin',
    ],
  };

在添加react-native-reanimated/plugin后，你可能会遇到"Reanimated 2 failed to create a worklet" error，需要清除应用缓存，可以执行命令yarn start --reset-cache或
npm start -- --reset-cache或
expo start -c

3、安装了@react-native-community/picker后又yarn add @react-native-picker/picker报错

报错信息: Type com.reactnativecommunity.picker.BuildConfig is defined multiple times
原因：@react-native-community/picker与 @react-native-picker/picker是相同的包，安装后在package.json中都被依赖，造成冲突[Picker]
解决方式：删除@react-native-community/picker库，删除后若报错，请清除缓存npm start --clean-cache

npm uninstall -D package-name 或 npm uninstall --save-dev package-name
例如：npm uninstall --save @react-native-community/picker  // 笔者使用的该行命令，上两种也可

或者其他方式：文章来源地址https://www.toymoban.com/news/detail-642866.html

1、react-native unlink <lib name>  // 平台不要链接
2、react-native uninstall  <lib name> // node modules 和 package.json中dependencies 卸载包
3、若执行--save命令后package.json没有清除包的声明，请手动移除   package.json中的 包名

到了这里，关于【reactNative混合安卓开发~使用问题持续更】的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！