feat: 初始化

This commit is contained in:
George
2025-07-07 16:05:18 +08:00
commit c169958240
986 changed files with 132574 additions and 0 deletions

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## 0.1.82024-08-05
- fix: 修复因shared升级导致微信小程序可能不生效的问题
## 0.1.72024-05-15
- fix: 修复uvue因缺少依赖无法使用
## 0.1.62024-05-09
- fix: 修复vue2因type问题导致无法使用
## 0.1.52024-04-14
- fix: 修复缺少依赖
## 0.1.42024-04-10
- chore: 更新文档
## 0.1.32024-04-01
- chore: 兼容uniapp x ios(app-js)
## 0.1.22023-12-14
- fix: uvue 引入 API 自定义包出错
## 0.1.12023-12-11
- chore: uvue的二维码API独立需要单独下载
## 0.1.02023-12-07
- fix: 修复因utssdk目录导致无法运行
## 0.0.92023-12-06
- feat: 支持uvue
## 0.0.82023-12-06
- feat: 支持uvue
## 0.0.72023-12-06
- feat: 支持uvue
## 0.0.62023-12-06
- feat: 支持uvue
## 0.0.52023-07-30
- fix: 修复再次生成前没有清空,导致图形叠加
## 0.0.42023-07-27
- fix: 修复相同尺寸无法再次生成
## 0.0.32023-06-09
- feat: 支持通过`@vue/composition-api``vue2`上使用
- chore: 更新文档
## 0.0.22023-06-08
- chore: 更新文档
## 0.0.12023-06-08
- 首次

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<template>
<!-- #ifdef MP -->
<canvas :style="styles" type="2d" :canvas-id="canvasId" :id="canvasId"></canvas>
<!-- #endif -->
<!-- #ifdef APP -->
<view class="l-qrcode" ref="drawableRef" :style="[styles]">
<image class="l-qrcode__icon" v-if="icon" :src="icon" :style="[iconStyle]"></image>
</view>
<!-- #endif -->
<!-- #ifdef WEB -->
<view class="l-qrcode" ref="drawableRef" :style="[styles]">
</view>
<!-- #endif -->
</template>
<script lang="uts" setup>
import { type PropType, nextTick } from 'vue'
// #ifndef APP
import { QRCodeCanvas } from './qrcode.js';
import { QRCodePropsTypes , ImageSettings } from './type'
// #endif
// #ifdef APP
import { QRCodeCanvas, QRCodePropsTypes , ImageSettings } from '@/uni_modules/lime-qrcodegen'
// #endif
// import { addUnit } from '@/uni_modules/lime-shared/addUnit'
// import { unitConvert } from '@/uni_modules/lime-shared/unitConvert'
// import { toBoolean } from '@/uni_modules/lime-shared/toBoolean'
import { addUnit, unitConvert } from './utils'
import { LQrcodeFailCallback, LQrcodeCompleteCallback, LQrcodeSuccessCallback} from './type'
const name = 'l-qrcode'
const props = defineProps({
value: {
type: String
},
icon: {
type: String
},
// #ifdef APP-ANDROID
size: {
type: Object,
default: 160
},
iconSize: {
type: Object,
default: 40
},
// #endif
// #ifndef APP-ANDROID
size: {
type: [Number, String],
default: 160
},
iconSize: {
type: [Number, String],
default: 40
},
// #endif
marginSize: {
type: Number,
default: 0
},
color: {
type: String,
default: '#000'
},
bgColor: {
type: String,
default: 'transparent'
},
bordered: {
type: Boolean,
default: true
},
errorLevel: {
type: String as PropType<'L' | 'M' | 'Q' | 'H'>,
default: 'M' // 'L' | 'M' | 'Q' | 'H'
},
useCanvasToTempFilePath: {
type: Boolean,
default: false
}
// status: {
// type: String as PropType<'active'|'expired'|'loading'>,
// default: 'active' // active | expired | loading
// }
})
const emits = defineEmits(['success'])
const context = getCurrentInstance();
const canvasId = `l-qrcode${context!.uid}`
const styles = computed<Map<string, any>>(():Map<string, any>=>{
const style = new Map<string, any>()
const size = addUnit(props.size);
if(size!=null){
style.set('width', size)
style.set('height', size)
}
style.set('background', props.bgColor)
return style
})
// #ifdef APP
const iconStyle = computed<Map<string, any>>(():Map<string, any>=>{
const style = new Map<string, any>()
const size = addUnit(props.iconSize);
if(size!=null){
style.set('width', size)
style.set('height', size)
}
return style
})
// #endif
const drawableRef = ref<UniElement|null>(null);
// #ifdef WEB
let canvas:HTMLCanvasElement|null = null
// #endif
let qrcode:QRCodeCanvas|null = null
const canvasToTempFilePath = (options: UTSJSONObject)=>{
const format = options.getString('format') ?? 'png';
const fail = options.get('fail') as LQrcodeFailCallback | null;
const complete = options.get('complete') as LQrcodeCompleteCallback | null;
const success = options.get('success') as LQrcodeSuccessCallback | null;
// #ifdef APP
const newOptions = {
format,
fail,
complete,
success,
} as TakeSnapshotOptions
drawableRef.value!.takeSnapshot(newOptions)
// #endif
// #ifdef WEB
success?.({
tempFilePath: canvas?.toDataURL('image/'+format)
})
// #endif
}
const render = ()=>{
const param:QRCodePropsTypes = {
value: props.value,
size: unitConvert(props.size),
fgColor: props.color,
level: ['L', 'M', 'Q', 'H'].includes(props.errorLevel) ? props.errorLevel : 'M',
marginSize: props.marginSize,
includeMargin: props.bordered,
imageSettings: null,
} as QRCodePropsTypes
if(props.icon != null){
// if(toBoolean(props.iconSize) && toBoolean(props.icon)){
const size = unitConvert(props.iconSize)
param.imageSettings = {
src: props.icon,
width: size,
height: size,
excavate: true
} as ImageSettings
}
qrcode?.render(param)
if(props.useCanvasToTempFilePath){
setTimeout(()=>{
canvasToTempFilePath({
success: (res: TakeSnapshotSuccess)=>{
emits('success', res.tempFilePath)
}
})
},100)
}
}
defineExpose({
canvasToTempFilePath
})
onMounted(()=>{
nextTick(()=>{
// #ifdef APP
const ctx = drawableRef.value!.getDrawableContext();
qrcode = new QRCodeCanvas(ctx!)
// #endif
// #ifdef WEB
canvas = document.createElement('canvas')
canvas.style.width = '100%'
canvas.style.height = '100%'
drawableRef.value!.appendChild(canvas)
qrcode = new QRCodeCanvas(canvas, {
pixelRatio: uni.getSystemInfoSync().pixelRatio,
createImage: () => {
const image = new Image();
image.crossOrigin = 'anonymous';
return image;
}
})
// #endif
watchEffect(()=>{
render()
})
})
})
onUnmounted(()=>{
// #ifdef WEB
canvas?.remove();
// #endif
qrcode = null;
})
</script>
<style lang="scss">
.l-qrcode {
position: relative;
background-color: aqua;
justify-content: center;
align-items: center;
&-mask {
position: absolute;
// inset: 0;
// inset-block-start: 0;
// inset-inline-start: 0;
z-index: 10;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
// width: 100%;
// height: 100%;
color: rgba(0, 0, 0, 0.88);
line-height: 1.5714285714285714;
background: rgba(255, 255, 255, 0.96);
text-align: center;
}
}
</style>

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<template>
<view class="l-qrcode" :style="[styles]">
<!-- #ifndef APP-NVUE -->
<canvas :style="styles" type="2d" :canvas-id="canvasId" :id="canvasId"></canvas>
<!-- #endif -->
<!-- #ifdef APP-NVUE -->
<web-view
ref="qrcodeRef"
@pagefinish="onFinished"
@error="onError"
@onPostMessage="onMessage"
:style="styles" src="/uni_modules/lime-qrcode/hybrid/html/index.html?v=1"></web-view>
<!-- #endif -->
<!-- <view class="l-qrcode-mask" v-if="['loading', 'expired'].includes(props.status)">
<l-loading v-if="props.status == 'loading'"></l-loading>
<view class="l-qrcode-expired" v-if="props.status == 'expired'">
<slot></slot>
</view>
</view> -->
</view>
</template>
<script lang="ts">
// @ts-nocheck
import { computed, defineComponent, getCurrentInstance, watch, onUnmounted, onMounted } from '@/uni_modules/lime-shared/vue';
import QRCodeProps from './props'
// #ifndef APP-NVUE
import { getCanvas, isCanvas2d } from './useCanvas'
import { QRCodeCanvas } from './qrcode.js';
// #endif
import { addUnit } from '@/uni_modules/lime-shared/addUnit'
import { createImage } from '@/uni_modules/lime-shared/createImage'
import { unitConvert } from '@/uni_modules/lime-shared/unitConvert'
import { isBase64 } from '@/uni_modules/lime-shared/isBase64'
import { pathToBase64 } from '@/uni_modules/lime-shared/pathToBase64'
import { debounce } from '@/uni_modules/lime-shared/debounce'
const name = 'l-qrcode'
export default defineComponent({
name,
props: QRCodeProps,
emits: ['success'],
setup(props, {emit}) {
const context = getCurrentInstance();
const canvasId = `l-qrcode${context.uid}`
const styles = computed(() => `width: ${addUnit(props.size)}; height: ${addUnit(props.size)};`)
let qrcode = null
let canvas = null
const qrCodeProps = computed(() => {
const { value, icon, size, color, bgColor, bordered, iconSize, errorLevel, marginSize } = props
const imageSettings = {
src: icon,
x: undefined,
y: undefined,
height: unitConvert(iconSize),
width: unitConvert(iconSize),
excavate: true,
}
return {
value,
size: unitConvert(size),
level: errorLevel,
bgColor,
fgColor: color,
imageSettings: icon ? imageSettings : undefined,
includeMargin: bordered,
marginSize: marginSize ?? 0
}
})
// #ifdef APP-NVUE
const stacks = new Map()
// #endif
const canvasToTempFilePath = debounce((args: UniNamespace.CanvasToTempFilePathRes) => {
if(!canvas) return
// #ifndef APP-NVUE
const copyArgs = Object.assign({
canvasId,
canvas: null
}, args)
if (isCanvas2d) {
copyArgs.canvas = canvas
}
if ('toTempFilePath' in canvas) {
canvas.toTempFilePath(copyArgs)
} else {
uni.canvasToTempFilePath(copyArgs, context);
}
// #endif
// #ifdef APP-NVUE
if(!stacks.size) {
const flie = 'file-' + Math.random();
const stack = {args, time: +new Date()}
stacks.set(`${flie}`, stack)
canvas.toDataURL(flie)
setTimeout(() => {
const stack = stacks.get(flie)
if(stack && 'fail' in stack.args) {
stack.args.fail({
error: '超时'
})
stacks.delete(flie)
}
},5000)
}
// #endif
})
const useCanvasToTempFilePath = () => {
if(props.useCanvasToTempFilePath) {
canvasToTempFilePath({
success(res: UniNamespace.CanvasToTempFilePathRes) {
emit('success', res.tempFilePath)
}
})
}
}
// #ifdef APP-NVUE
const onFinished = () => {
const { pixelRatio } = uni.getSystemInfoSync()
canvas = {
toDataURL(flie: string) {
const ref: any = context.refs['qrcodeRef'];
if(ref) {
ref?.evalJS(`toDataURL('${flie}')`)
}
}
};
qrcode = {
async render(props: any) {
const ref: any = context.refs['qrcodeRef'];
const { src } = props.imageSettings || { };
if(!ref) return
if(src && !isBase64(src) && !/^http/.test(src) && /^\/static/.test(src)) {
props.imageSettings.src = await pathToBase64(src)
}
const _props = JSON.stringify(Object.assign({}, props, {pixelRatio}));
ref?.evalJS(`render(${_props})`);
}
}
qrcode.render(qrCodeProps.value)
useCanvasToTempFilePath()
}
const onError = () => {
console.warn('lime-qrcode 加载失败')
}
const onMessage = (e: any) => {
const {detail:{data: [res]}} = e
if(res.event == 'toDataURL') {
const {file, image, msg} = res.data;
const stack = stacks.get(file)
if(stack && image && 'success' in stack.args) {
stack.args.success({tempFilePath: image})
stacks.delete(file)
} else if(stack && 'fails' in stack.args) {
stack.args.fail({error: msg})
stacks.delete(file)
}
}
}
// #endif
const propsWatch = watch(props, () => {
if (qrcode) {
qrcode.render(qrCodeProps.value)
useCanvasToTempFilePath()
}
})
onMounted(() => {
// #ifndef APP-NVUE
getCanvas(canvasId, { context }).then(res => {
canvas = res
qrcode = new QRCodeCanvas(res, {
// #ifdef H5
path2D: false,
// #endif
pixelRatio: isCanvas2d ? uni.getSystemInfoSync().pixelRatio : 1,
createImage
})
qrcode.render(qrCodeProps.value)
useCanvasToTempFilePath()
})
// #endif
})
onUnmounted(() => {
propsWatch && propsWatch()
})
return {
canvasId,
styles,
props,
canvasToTempFilePath,
// #ifdef APP-NVUE
onFinished,
onError,
onMessage
// #endif
}
}
})
</script>
<style lang="scss">
.l-qrcode {
position: relative;
&-mask {
position: absolute;
inset: 0;
// inset-block-start: 0;
// inset-inline-start: 0;
z-index: 10;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
// width: 100%;
// height: 100%;
color: rgba(0, 0, 0, 0.88);
line-height: 1.5714285714285714;
background: rgba(255, 255, 255, 0.96);
text-align: center;
}
}
</style>

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// @ts-nocheck
// import type { PropType } from './vue'
export default {
value: String,
icon: String,
size: {
type: [Number, String],
default: 160
},
iconSize: {
type: [Number, String],
default: 40
},
marginSize: Number,
color: {
type: String,
default: '#000'
},
bgColor: {
type: String,
default: 'transparent'
},
bordered: {
type: Boolean,
default: true
},
errorLevel: {
type: String as PropType<'L'|'M'|'Q'|'H'>,
default: 'M' // 'L' | 'M' | 'Q' | 'H'
},
useCanvasToTempFilePath: Boolean
// status: {
// type: String as PropType<'active'|'expired'|'loading'>,
// default: 'active' // active | expired | loading
// }
}

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// @ts-nocheck
export type ImageSettings = {
width: number
height: number
x?: number
y?: number
excavate: boolean
}
export type QRCodePropsTypes = {
value?: string
size?: number
fgColor?: string
level?: string
marginSize: number
includeMargin: boolean
imageSettings?: ImageSettings
}
export type QRCodeCallback = (cells : boolean[][]) => void
export type Excavation = {
x: number
y: number
h: number
w: number
}
/**
* 成功回调函数定义
*/
export type TakeSnapshotSuccessCallback = (res: TakeSnapshotSuccess) => void
/**
* 失败回调函数定义
*/
export type TakeSnapshotFailCallback = (res: TakeSnapshotFail) => void
/**
* 完成回调函数定义
*/
export type TakeSnapshotCompleteCallback = (res: any) => void
export type LQrcodeFailCallback = TakeSnapshotFailCallback
export type LQrcodeCompleteCallback = TakeSnapshotCompleteCallback
export type LQrcodeSuccessCallback = TakeSnapshotSuccessCallback

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// @ts-nocheck
import type { ComponentInternalInstance } from '@/uni_modules/lime-shared/vue'
import { getRect } from '@/uni_modules/lime-shared/getRect'
import { canIUseCanvas2d } from '@/uni_modules/lime-shared/canIUseCanvas2d'
export const isCanvas2d = canIUseCanvas2d()
export async function getCanvas(canvasId: string, options: {context: ComponentInternalInstance}) {
let { context } = options
// #ifdef MP || VUE2
if (context.proxy) context = context.proxy
// #endif
return getRect('#' + canvasId, context, isCanvas2d).then(res => {
if(res.node){
return res.node
} else {
const ctx = uni.createCanvasContext(canvasId, context)
return {
getContext(type: string) {
if(type == '2d') {
return ctx
}
},
width: res.width,
height: res.height,
}
// #ifdef H5
// canvas.value = context.proxy.$el.querySelector('#'+ canvasId)
// #endif
}
})
}
// #ifndef H5 || APP-NVUE
class Image {
currentSrc: string | null = null
naturalHeight: number = 0
naturalWidth: number = 0
width: number = 0
height: number = 0
tagName: string = 'IMG'
path: any = ''
crossOrigin: any = ''
referrerPolicy: any = ''
onload: () => void
onerror: () => void
constructor() {}
set src(src) {
this.currentSrc = src
uni.getImageInfo({
src,
success: (res) => {
this.path = res.path
this.naturalWidth = this.width = res.width
this.naturalHeight = this.height = res.height
this.onload()
},
fail: () => {
this.onerror()
}
})
}
get src() {
return this.currentSrc
}
}
// #endif
export function createImage(canvas: WechatMiniprogram.Canvas) {
if(canvas && canvas.createImage) {
return canvas.createImage()
} else if(typeof window != 'undefined' && window.Image) {
return new window.Image()
}
// #ifndef H5 || APP-NVUE
return new Image()
// #endif
}

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export function addUnit(value: any|null):string{
if(value == null){
return ''
}
value = `${value}`
return /^(-)?\d+(\\.\d+)?$/.test(value) ? `${value}px` : value
}
export function unitConvert(value: any|null): number{
if(typeof value == 'number'){
return value as number
}
if(typeof value == 'string'){
value = `${value}`
if(/^(-)?\d+(\\.\d+)?$/.test(value)){
return parseFloat(value);
}
const reg = /^-?([0-9]+)?([.]{1}[0-9]+){0,1}(em|rpx|px|%)$/g;
const results = reg.exec(value);
if (results == null) {
return 0;
}
const unit = results[3];
const v = parseFloat(value);
if (unit == 'rpx') {
const { windowWidth } = uni.getWindowInfo()
return windowWidth / 750 * v;
}
if (unit == 'px') {
return v;
}
}
return 0;
}

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<template>
<view class="demo-block">
<text class="demo-block__title-text ultra">QRCode</text>
<text class="demo-block__desc-text">能够将文本转换生成二维码的组件,支持自定义配色和 Logo 配置</text>
<view class="demo-block__body">
<view class="demo-block card">
<text class="demo-block__title-text large">基础</text>
<view class="demo-block__body">
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx"></l-qrcode>
</view>
</view>
<view class="demo-block card">
<text class="demo-block__title-text large">icon</text>
<view class="demo-block__body">
<image v-if="image !=''" :src="image" style="width: 300rpx;" mode="widthFix"></image>
<view style="flex-direction: row; justify-content: space-between">
<l-qrcode ref="qrcodeRef" value="https://limeui.qcoon.cn" size="300rpx" icon="https://img10.360buyimg.com/img/jfs/t1/182127/16/37474/11761/64659c31F0cd84976/21f25b952f03a49a.jpg" iconSize="70rpx"></l-qrcode>
<l-qrcode :useCanvasToTempFilePath="true" @success="success" value="https://limeui.qcoon.cn" size="300rpx" icon="https://img10.360buyimg.com/img/jfs/t1/182127/16/37474/11761/64659c31F0cd84976/21f25b952f03a49a.jpg" iconSize="70rpx"></l-qrcode>
</view>
<button type="primary" style="margin-top: 20rpx;" @click="onClick">生成图片</button>
</view>
</view>
<view class="demo-block card">
<text class="demo-block__title-text large">颜色</text>
<view class="demo-block__body">
<view style="flex-direction: row; justify-content: space-between">
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx" color="rgb(82,196,26)"></l-qrcode>
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx" color="rgb(22,119,255)" bgColor="rgb(245,245,245)"></l-qrcode>
</view>
</view>
</view>
<view class="demo-block card">
<text class="demo-block__title-text large">纠错比例</text>
<view class="demo-block__body">
<l-qrcode value="img10.360buyimg.com/img/jfs/t1/182127/16/37474/11761/64659c31F0cd84976/21f25b952f03a49a.jpg" size="300rpx" :errorLevel="levels[index]"></l-qrcode>
<button type="primary" style="margin-top: 20rpx;" @click="onToggle">切换纠错等级:{{levels[index]}}</button>
</view>
</view>
<view class="demo-block card">
<text class="demo-block__title-text large">动态</text>
<view class="demo-block__body">
<l-qrcode :value="text" size="300rpx" :marginSize="1" bgColor="white"></l-qrcode>
<button type="primary" style="margin-top: 20rpx;" @click="update">更新</button>
</view>
</view>
</view>
</view>
</template>
<script>
// import {ComponentPublicInstance} from 'vue'
export default {
name: 'lime-qrcode',
data() {
return {
text: 'qcoon.com.cn',
image: '',
index: 0,
levels: ['L', 'M', 'Q', 'H']
}
},
methods:{
success(src: string) {
console.log(`src`, src)
},
update() {
this.text = `qcoon.cn?v=${Math.random()}`
},
onToggle() {
this.index++
this.index = this.index % this.levels.length
},
onClick() {
const el:LQrcodeComponentPublicInstance = this.$refs['qrcodeRef'] as LQrcodeComponentPublicInstance
el.canvasToTempFilePath({
success:(res: TakeSnapshotSuccess)=>{
this.image = res.tempFilePath
}
})
}
},
mounted() {
}
}
</script>
<style lang="scss">
.demo-block {
margin: 32px 10px 0;
overflow: visible;
&.card{
background-color: white;
padding: 30rpx;
margin-bottom: 20rpx;
}
&__title {
margin: 0;
margin-top: 8px;
&-text {
color: rgba(0, 0, 0, 0.6);
font-weight: 400;
font-size: 14px;
line-height: 16px;
&.large {
color: rgba(0, 0, 0, 0.9);
font-size: 18px;
font-weight: 700;
line-height: 26px;
}
&.ultra {
color: rgba(0, 0, 0, 0.9);
font-size: 24px;
font-weight: 700;
line-height: 32px;
}
}
}
&__desc-text {
color: rgba(0, 0, 0, 0.6);
margin: 8px 16px 0 0;
font-size: 14px;
line-height: 22px;
}
&__body {
margin: 16px 0;
overflow: visible;
.demo-block {
// margin-top: 0px;
margin: 0;
}
}
}
</style>

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<template>
<demo-block title="QRCode" type="ultra">
<demo-block title="基础">
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx"></l-qrcode>
</demo-block>
<demo-block title="icon">
<view style="display: flex; gap: 10px">
<image v-if="image" :src="image" style="width: 300rpx;" mode="widthFix"></image>
<l-qrcode ref="qrcodeRef" value="https://limeui.qcoon.cn" size="300rpx" icon="https://img10.360buyimg.com/img/jfs/t1/182127/16/37474/11761/64659c31F0cd84976/21f25b952f03a49a.jpg" iconSize="70rpx"></l-qrcode>
<l-qrcode useCanvasToTempFilePath @success="success" value="https://limeui.qcoon.cn" size="300rpx" icon="https://img10.360buyimg.com/img/jfs/t1/182127/16/37474/11761/64659c31F0cd84976/21f25b952f03a49a.jpg" iconSize="70rpx"></l-qrcode>
</view>
<button @click="onClick">生成图片</button>
</demo-block>
<demo-block title="颜色">
<view style="display: flex; gap: 10px">
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx" color="rgb(82,196,26)"></l-qrcode>
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx" color="rgb(22,119,255)" bgColor="rgb(245,245,245)"></l-qrcode>
</view>
</demo-block>
<demo-block title="纠错比例">
<l-qrcode value="img10.360buyimg.com/img/jfs/t1/182127/16/37474/11761/64659c31F0cd84976/21f25b952f03a49a.jpg" size="300rpx" :errorLevel="levels[index]"></l-qrcode>
<button @click="onToggle">切换纠错等级{{levels[index]}}</button>
</demo-block>
<demo-block title="动态">
<l-qrcode :value="text" size="300rpx" :marginSize="1" bgColor="white"></l-qrcode>
<button @click="update">更新</button>
</demo-block>
</demo-block>
</template>
<script>
import {ref, defineComponent} from '@/uni_modules/lime-shared/vue'
export default defineComponent({
setup() {
const qrcodeRef = ref(null)
const image = ref(null)
const text = ref('qcoon.com.cn')
const levels = ['L', 'M', 'Q', 'H']
let index = ref(0)
const onToggle = () => {
index.value++
index.value = index.value % levels.length
}
const onClick = () => {
if(qrcodeRef.value) {
qrcodeRef.value.canvasToTempFilePath({
success(res) {
image.value = res.tempFilePath
console.log('success:::', res)
},
fail(err) {
console.log('err:::', err)
}
})
}
}
const success = (res) => {
console.log('res', res)
}
const update = () =>{
text.value = `qcoon.cn?v=${Math.random()}`
}
return {
levels,
index,
image,
text,
qrcodeRef,
onClick,
update,
success,
onToggle,
}
}
})
</script>
<style>
</style>

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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>lime-qrcode</title>
<style>
html,body,canvas {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
pointer-events: none;
/* background-color: rgba(255,0,0,0.1) */
}
</style>
</head>
<body>
<canvas id="lime-qrcode"></canvas>
<script type="text/javascript" src="./uni.webview.1.5.3.js"></script>
<script type="text/javascript" src="./qrcode.min.js"></script>
<script>
var canvas = document.querySelector('#lime-qrcode')
var pixelRatio = window.devicePixelRatio || 1
function appendWatermark(image) {
emit('append', mark.toDataURL())
}
var qrcode = new lime.QRCodeCanvas(canvas, {
pixelRatio,
})
function render(props) {
if(props.pixelRatio) {
pixelRatio = props.pixelRatio
}
if(qrcode) {
qrcode.render(props)
}
}
function toDataURL(file) {
if(qrcode && canvas) {
try{
const image = canvas.toDataURL()
emit('toDataURL', {
file,
image
})
}catch(e){
emit('toDataURL', {
file,
msg: e
})
}
}
}
function emit(event, data) {
postMessage({
event,
data
});
};
function postMessage(data) {
uni.postMessage({
data
});
};
// render({
// content: ['Lime UI'],
// // rotate: -22,
// // baseSize: 2,
// // fontGap: 3
// })
</script>
</body>
</html>

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{
"id": "lime-qrcode",
"displayName": "qrcode 二维码生成",
"version": "0.1.8",
"description": "一款全平台通用的二维码生成插件支持uniapp/uniappx(web,ios,安卓)",
"keywords": [
"qrcode",
"qr",
"uvue",
"生成图片",
"二维码"
],
"repository": "",
"engines": {
},
"dcloudext": {
"type": "component-vue",
"sale": {
"regular": {
"price": "0.00"
},
"sourcecode": {
"price": "0.00"
}
},
"contact": {
"qq": "305716444"
},
"declaration": {
"ads": "无",
"data": "无",
"permissions": "无"
},
"npmurl": ""
},
"uni_modules": {
"dependencies": [
"lime-shared"
],
"encrypt": [],
"platforms": {
"cloud": {
"tcb": "y",
"aliyun": "y",
"alipay": "n"
},
"client": {
"Vue": {
"vue2": "y",
"vue3": "y"
},
"App": {
"app-vue": "y",
"app-nvue": "y",
"app-uvue": "y",
"app-android": {
"minVersion": "19"
}
},
"H5-mobile": {
"Safari": "y",
"Android Browser": "y",
"微信浏览器(Android)": "y",
"QQ浏览器(Android)": "y"
},
"H5-pc": {
"Chrome": "y",
"IE": "u",
"Edge": "u",
"Firefox": "u",
"Safari": "u"
},
"小程序": {
"微信": "y",
"阿里": "u",
"百度": "u",
"字节跳动": "u",
"QQ": "u",
"钉钉": "u",
"快手": "u",
"飞书": "u",
"京东": "u"
},
"快应用": {
"华为": "u",
"联盟": "u"
}
}
}
}
}

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# lime-qrcode 二维码
- 一款全平台通用的二维码生成插件支持uniapp/uniappx(web,ios,安卓)
- uvue 需要导入[lime-qrcodegen](https://ext.dcloud.net.cn/plugin?id=15838)
## 使用
- 导入插件后直接使用
- uvue 需要导入**[lime-qrcodegen](https://ext.dcloud.net.cn/plugin?id=15838)**
#### 基础使用
```html
<l-qrcode value="http://lime.qcoon.cn" />
```
#### ICON
- 带 Icon 的二维码
```html
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx" icon="/static/logo.png" iconSize="70rpx"></l-qrcode>
```
#### 颜色
- 通过设置 `color` 自定义二维码颜色,通过设置 `bgColor` 自定义背景颜色。
```html
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx" color="rgb(82,196,26)"></l-qrcode>
<l-qrcode value="https://limeui.qcoon.cn" size="300rpx" color="rgb(22,119,255)" bgColor="rgb(245,245,245)"></l-qrcode>
```
#### 纠错比例
- 通过设置 `errorLevel` 调整不同的容错等级。
```html
<l-qrcode value="img10.360buyimg.com/img/jfs/t1/182127/16/37474/11761/64659c31F0cd84976/21f25b952f03a49a.jpg" size="300rpx" errorLevel="H"></l-qrcode>
```
#### 生成图片
- 1、通过调用插件的`canvasToTempFilePath`方法生成图片。
```html
<image v-if="image" :src="image" style="width: 300rpx;" mode="widthFix"></image>
<l-qrcode ref="qrcodeRef" value="https://limeui.qcoon.cn" size="300rpx" icon="https://img10.360buyimg.com/img/jfs/t1/182127/16/37474/11761/64659c31F0cd84976/21f25b952f03a49a.jpg" iconSize="70rpx"></l-qrcode>
<button @click="onClick">生成图片</button>
```
```js
// vue3
const qrcodeRef = ref(null)
const onClick = () => {
if(!qrcodeRef.value) return
qrcodeRef.value.canvasToTempFilePath({
success(res) {
image.value = res.tempFilePath
console.log('success:::', res)
},
fail(err) {
console.log('err:::', err)
}
})
}
// vue2
const el = this.$refs['qrcodeRef']
el.canvasToTempFilePath({
success:(res)=>{
this.image = res.tempFilePath
},
fail(err) {
console.log('err:::', err)
}
})
// uvue
const el:LQrcodeComponentPublicInstance = this.$refs['qrcodeRef'] as LQrcodeComponentPublicInstance
el.canvasToTempFilePath({
success:(res: TakeSnapshotSuccess)=>{
this.image = res.tempFilePath
},
fail(err: TakeSnapshotFail) {
console.log('err:::', err)
}
})
```
- 2、通过设置`useCanvasToTempFilePath``success`事件里接收图片地址
```html
<image v-if="image" :src="image" style="width: 300rpx;" mode="widthFix"></image>
<l-qrcode useCanvasToTempFilePath @success="success" value="https://limeui.qcoon.cn"></l-qrcode>
```
```js
const image = ref(null)
const success = (img) => {
image.value = img
}
```
### 关于vue2的使用方式
- 插件使用了`composition-api`, 如果你希望在vue2中使用请按官方的教程[vue-composition-api](https://uniapp.dcloud.net.cn/tutorial/vue-composition-api.html)配置
- 关键代码是: 在main.js中 在vue2部分加上这一段即可
```js
// main.js vue2
import Vue from 'vue'
import VueCompositionAPI from '@vue/composition-api'
Vue.use(VueCompositionAPI)
```
另外插件也用到了TSvue2可能会遇过官方的TS版本过低的问题,找到HX目录下的`compile-typescript`目录
```cmd
// \HBuilderX\plugins\compile-typescript
yarn add typescript -D
- or -
npm install typescript -D
```
### 查看示例
- 导入后直接使用这个标签查看演示效果
```html
// 代码位于 uni_modules/lime-qrcode/compoents/lime-qrcode
<lime-qrcode />
```
### 插件标签
- 默认 l-qrcode 为 component
- 默认 lime-qrcode 为 demo
## API
### Props
| 参数 | 说明 | 类型 | 默认值 |
| --------------------------| ------------------------------------------------------------ | ---------------- | ------------ |
| value | 扫描后的文本 | <em>string</em> | `-` |
| icon | 二维码中图片的地址 | <em>string</em> | `-` |
| size | 二维码大小 | <em>numberstring</em> | `160` |
| iconSize | 二维码中图片的大小 | <em>numberstring</em> | `40` |
| color | 二维码颜色 | <em>string</em> | `-` |
| bgColor | 二维码背景颜色 | <em>string</em> | `-` |
| errorLevel | 二维码纠错等级 | `'L' | 'M' | 'Q' | 'H' ` | `M` |
| marginSize | 边距码大小默认为0码点 | <em>number</em> | `0` |
### 常见问题
- icon 是网络地址时H5和Nvue需要解决跨域问题小程序需要配置download
## 打赏
如果你觉得本插件,解决了你的问题,赠人玫瑰,手留余香。
![](https://testingcf.jsdelivr.net/gh/liangei/image@1.9/alipay.png)
![](https://testingcf.jsdelivr.net/gh/liangei/image@1.9/wpay.png)