taro3.x: 简单点评实现-chooseImage,uploadFile, Textarea

tsx:

import React, { useState } from 'react'
import Taro, { getCurrentInstance } from '@tarojs/taro'
import { Textarea, View, Text, Image } from '@tarojs/components'

import api from '@services/api'
import app from '@services/request'
import NavBar from '@components/navbar'
import './index.scss'

interface ITextData {
    count?: number,
    value: string
}

const INIT_TEXT_DATA = {
    value: '',
    count: 0
}

const HouseCommentForm = () => {
    const textCount = 150
    const router = getCurrentInstance().router
    const [textData, setTextData] = useState<ITextData>(INIT_TEXT_DATA)
    const [imagePath, setImagePath] = useState<string>('')

    const handleInputChange = (e: any) => {
        const { cursor, value } = e.detail
        setTextData({
            value,
            count: cursor
        })
    }

    const handleUploadImage = () => {
        Taro.chooseImage({
            count: 1,
            success: ((res: any) => {
                Taro.uploadFile({
                    url: app.areaApiUrl(api.uploadFile),
                    filePath: res.tempFilePaths[0],
                    name: 'file',
                    formData: {
                        file: res.tempFiles[0]
                    },
                    header: {
                        'X-Token': 'zrggSr9n1XFzDeaD'
                    },
                    success: ((result: any) => {
                        setImagePath(JSON.parse(result.data).data)
                    })
                })
            })
        })
    }

    const submitComment = () => {
        app.request({
            url: app.areaApiUrl(api.postHouseComment),
            method: 'POST',
            data: {
                fang_house_id: router?.params.id,
                content: textData.value,
                image_path: imagePath
            }
        })
    }

    return (
        <View className="comment-form">
            <NavBar title="写评论" back={true}></NavBar>
            <View className="comment-wrapper">
                <View className="comment-title">
                    写下对【】的点评
                </View>
                <View className="comment-input">
                    <Textarea
                        autoFocus
                        autoHeight
                        maxlength={textCount}
                        placeholderClass="small-desc"
                        className="comment-input-text"
                        placeholder="说说你的看法"
                        onInput={handleInputChange}
                    />
                    <View className="comment-input-image">
                        <View className="image-wrapper">
                            {
                                imagePath &&
                                <View className="image-show">
                                    <Text className="iconfont iconclear" onClick={() => setImagePath('')}></Text>
                                    <Image src={imagePath} />
                                </View>
                            }
                        </View>
                        <View className="upload-btn" onClick={handleUploadImage}>
                            <Text className="text">上传图片</Text>
                        </View>
                    </View>
                    <View className="comment-input-count">{textData.count}/{textCount}</View>
                </View>
                <View className="comment-action">
                    <View className="btn btn-primary" onClick={submitComment}>提交评论</View>
                </View>
            </View>
        </View>
    )
}

export default HouseCommentForm

css：

.comment-form {
    width: 100%;
    height: 100vh;
    background-color: $bg-color;
    font-size: $font-basic;
    .comment-wrapper {
        padding: 0 30px;
        .comment-title {
            margin-top: 30px;
            color: $text-color;
        }

        .comment-input {
            position: relative;
            background-color: $white;
            padding: 20px;
            margin: 20px 0;
            border-radius: $border-radius-10;
            &-text {
                width: 100%;
            }

            &-image {
                .image-wrapper {
                    position: relative;
                    width: 180px;
                    height: 160px;
                    margin: 30px 0;

                    .image-show {
                        width: 100%;
                        height: 100%;
                        background-color: $bg-color;
                        Image {
                            width: 100%;
                            height: 100%;
                        }

                        .iconfont {
                            position: absolute;
                            top: 10px;
                            right: 10px;
                            width: 40px;
                            height: 40px;
                            color: $text-color;
                        }
                    }
                }

                .upload-btn {
                    width: 180px;
                    height: 60px;
                    line-height: 60px;
                    text-align: center;
                    border: 1px solid $primary-color;
                    border-radius: $border-radius-10;
                    color: $primary-color;
                }
            }

            .comment-input-count {
                position: absolute;
                bottom: 30px;
                right: 30px;
                color: $text-color;
            }
        }
    }
}

图例：