<template>
<view >
<view class="wrapper" style="position: relative;">
<view class="handBtn">
<image @click="selectColorEvent('black','#1A1A1A')"
:src="selectColor === 'black' ? '../static/other/color_black_selected.png' : '../static/other/color_black.png'"
:class="[selectColor === 'black' ? 'color_select' : '', 'black-select']"></image>
<image @click="selectColorEvent('red','#ca262a')"
:src="selectColor === 'red' ? '../static/other/color_red_selected.png' : '../static/other/color_red.png'"
:class="[selectColor === 'red' ? 'color_select' : '', 'black-select']"></image>
<button @click="retDraw2" class="delBtn">重写</button>
<!-- <button @click="saveCanvasAsImg" class="saveBtn">保存</button> -->
<button @click="previewCanvasImg" class="previewBtn">预览</button>
<button @click="autoFix" class="previewBtn1" v-if="gzcName=='重庆市渝北公证处' ">自动生成</button>
<!-- <button @click="uploadCanvasImg" class="uploadBtn">上传</button> -->
<button @click="subCanvas" class="subBtn">完成</button>
</view>
<view class="handCenter">
<canvas class="handWriting" style="width: 300px;height: 95vh;" :disable-scroll="true"
@touchstart="uploadScaleStart" @touchmove="uploadScaleMove" @touchend="uploadScaleEnd"
canvas-id="handWriting"></canvas>
</view>
<view class="handRight">
<view class="handTitle">请签名</view>
</view>
</view>
</view>
</template>
<script>
import {
startEid
} from '@/mp_ecard_sdk/main.js'
import { config } from '@/config/index.js'
let { appId } = config
export default {
data () {
return {
gzcName:'重庆市渝北公证处',
autoWrite:"",
name:'',
showText:false,
drawLine: [],
signStatus: '',
appId: appId,
signType: '',
canvasName: 'handWriting',
ctx: '',
canvasWidth: 0,
canvasHeight: 0,
transparent: 1, // 透明度
selectColor: 'black',
lineColor: '#1A1A1A', // 颜色
lineSize: 1.5, // 笔记倍数
lineMin: 0.5, // 最小笔画半径
lineMax: 4, // 最大笔画半径
pressure: 1, // 默认压力
smoothness: 60, //顺滑度，用60的距离来计算速度
currentPoint: {},
currentLine: [], // 当前线条
firstTouch: true, // 第一次触发
radius: 1, //画圆的半径
cutArea: {
top: 0,
right: 0,
bottom: 0,
left: 0
}, //裁剪区域
bethelPoint: [], //保存所有线条 生成的贝塞尔点；
lastPoint: 0,
chirography: [], //笔迹
currentChirography: {}, //当前笔迹
linePrack: [], //划线轨迹 , 生成线条的实际点
gzOrderId: '',
userId: '',
role: 0
};
},
onShow () {
},
onLoad (options) {
console.log(options);
this.gzOrderId = options.gzOrderId
this.userId = options.userId
this.signUserType = options.signUserType
this.role = options.role
this.name = options.name
this.signStatus = options.signStatus
if(uni.getStorageSync('gzcName')){
this.gzcName=uni.getStorageSync('gzcName')
}
// 输出gzName
console.log('this.gzcName',this.gzcName)
let canvasName = this.canvasName;
let ctx = wx.createCanvasContext(canvasName);
this.ctx = ctx;
var query = wx.createSelectorQuery();
query
.select('.handCenter')
.boundingClientRect(rect => {
console.log(rect);
this.canvasWidth = rect.width;
this.canvasHeight = rect.height;
/* 将canvas背景设置为 白底，不设置 导出的canvas的背景为透明 */
this.setCanvasBg("#fff");
this.initText()
})
.exec();
// 人脸核验初始化
// this.faceCheckInit()
},
onUnload () {
uni.removeStorageSync('faceidToken')
},
methods: {
autoFix(){
this.autoWrite=true
this.initText()
},
initText () {
console.log('initTExt');
let text = this.name||'请签字'
console.log(text.length);
let arr = text.split('')
let textArr = arr.map((it, index) => {
return index + 1 == arr.length ? it : it + '\xa0'
})
let texta = textArr.join('')
// 查看当前文字的宽高
// let width = this.ctx.measureText(text)
this.ctx.font = `${text.length==2?150:text.length==3?120:100}px FangSong`
// 设置文本的对齐方式的属性left文本左对齐、right文本右对齐、center文本居中对齐、
// start（默认）文本对齐界线开始的地方、end文本对齐界线结束的地方
this.ctx.textAlign = "center"
// 设置文字上下对齐方式top文本基线在文本块的顶部。
//hanging文本基线是悬挂基线。
//middle文本基线在文本块的中间。
//alphabetic文本基线是标准的字母基线。
// ideographic文字基线是表意字基线；如果字符本身超出了 alphabetic 基线，那么 ideograhpic 基线位置在字符本身的底部。
// bottom文本基线在文本块的底部。与 ideographic 基线的区别在于 ideographic 基线不需要考虑下行字母。
this.ctx.textBaseline = "middle"
//以下是基准点
this.ctx.arc(300, 200, 3, 0, Math.PI * 2)
this.ctx.fillStyle = 'black'
this.ctx.save()
this.ctx.translate(this.canvasWidth / 2, this.canvasHeight / 2)
this.ctx.rotate(Math.PI / 2)
this.ctx.setLineDash([4])
// this.ctx.strokeText(texta)
if(this.autoWrite){
this.ctx.fillText(texta)
}else{
console.log('镂空效果');
this.ctx.strokeText(texta)
}
// this.ctx.strokeText(texta)
this.ctx.setFillStyle("#fff");
this.ctx.fill(); //设置填充
this.ctx.draw()
this.ctx.restore()
this.showText=true;
},
async faceCheckInit () {
// 拿到签署类型告诉后端是走人脸识别还是新的视频操作
let res = await this.$http.post(this.$api.faceCheckInit, {
"returnUrl": '/pagesInput/handleInput/inputResult/index',
});
if (res.token) {
let url = `https://api-h5.jumdata.com/lifecheck/v2/check/index`
uni.navigateTo({
url: `/shareWeb/shareWeb?url=${url}&token=${res.token}`
})
}
console.log('faceCheckInit', res);
},
// 笔迹开始
uploadScaleStart (e) {
// 判断当前 chirography 是否为空
console.log(this.chirography);
// this.retDraw(false)
// if(this.chirography.length<1){
// // 如果不为空，则返回 false
// this.retDraw(false)
// return
// }
// 判断当前事件类型是否为 touchstart
if (e.type != 'touchstart') return false;
// 获取当前 ctx
let ctx = this.ctx;
// 设置当前线条颜色
ctx.setFillStyle(this.lineColor); // 初始线条设置颜色
// 设置当前线条透明度
ctx.setGlobalAlpha(this.transparent); // 设置半透明
// 获取当前触摸点
let currentPoint = {
x: e.touches[0].x,
y: e.touches[0].y
};
// 获取当前线条
let currentLine = this.currentLine;
// 将当前触摸点添加到当前线条中
currentLine.unshift({
time: new Date().getTime(),
dis: 0,
x: currentPoint.x,
y: currentPoint.y
});
// 更新当前触摸点
this.currentPoint = currentPoint;
// currentLine
// 判断当前是否为第一次触摸
if (this.firstTouch) {
// 如果是第一次触摸，则设置剪切区域
this.cutArea = {
top: currentPoint.y,
right: currentPoint.x,
bottom: currentPoint.y,
left: currentPoint.x
};
// 将当前状态设置为非第一次触摸
this.firstTouch = false;
}
// 将当前触摸点添加到当前线条中
this.pointToLine(currentLine);
},
// 笔迹移动
uploadScaleMove (e) {
if (e.type != 'touchmove') return false;
if (e.cancelable) {
// 判断默认行为是否已经被禁用
if (!e.defaultPrevented) {
e.preventDefault();
}
}
let point = {
x: e.touches[0].x,
y: e.touches[0].y
};
//测试裁剪
if (point.y < this.cutArea.top) {
this.cutArea.top = point.y;
}
if (point.y < 0) this.cutArea.top = 0;
if (point.x > this.cutArea.right) {
this.cutArea.right = point.x;
}
if (this.canvasWidth - point.x <= 0) {
this.cutArea.right = this.canvasWidth;
}
if (point.y > this.cutArea.bottom) {
this.cutArea.bottom = point.y;
}
if (this.canvasHeight - point.y <= 0) {
this.cutArea.bottom = this.canvasHeight;
}
if (point.x < this.cutArea.left) {
this.cutArea.left = point.x;
}
if (point.x < 0) this.cutArea.left = 0;
this.lastPoint = this.currentPoint;
this.currentPoint = point;
let currentLine = this.currentLine;
currentLine.unshift({
time: new Date().getTime(),
dis: this.distance(this.currentPoint, this.lastPoint),
x: point.x,
y: point.y
});
// console.log('this.currentLine', this.currentLine);
this.drawLine = JSON.parse(JSON.stringify(currentLine))
this.pointToLine(currentLine);
},
// 笔迹结束
uploadScaleEnd (e) {
if (e.type != 'touchend') return 0;
let point = {
x: e.changedTouches[0].x,
y: e.changedTouches[0].y
};
this.lastPoint = this.currentPoint;
this.currentPoint = point;
let currentLine = this.currentLine;
currentLine.unshift({
time: new Date().getTime(),
dis: this.distance(this.currentPoint, this.lastPoint),
x: point.x,
y: point.y
});
if (currentLine.length > 2) {
var info = (currentLine[0].time - currentLine[currentLine.length - 1].time) / currentLine.length;
//$("#info").text(info.toFixed(2));
}
//一笔结束，保存笔迹的坐标点，清空，当前笔迹
//增加判断是否在手写区域；
this.pointToLine(currentLine);
var currentChirography = {
lineSize: this.lineSize,
lineColor: this.lineColor
};
var chirography = this.chirography;
chirography.unshift(currentChirography);
this.chirography = chirography;
var linePrack = this.linePrack;
linePrack.unshift(this.currentLine);
this.linePrack = linePrack;
// 暂时注释
this.currentLine = [];
},
retDraw () {
this.ctx.clearRect(0, 0, 700, 730);
this.ctx.draw();
//设置canvas背景
this.setCanvasBg('#fff');
},
retDraw2 () {
console.log('重写',this.showText);
this.autoWrite=false
this.chirography=[]
this.ctx.clearRect(0, 0, 700, 730);
this.ctx.draw();
//设置canvas背景
this.setCanvasBg('#fff');
// this.initText()
},
//画两点之间的线条；参数为:line，会绘制最近的开始的两个点；
pointToLine (line) {
this.calcBethelLine(line);
return;
},
//计算插值的方式；
calcBethelLine (line) {
if (line.length <= 1) {
line[0].r = this.radius;
return;
}
let x0,
x1,
x2,
y0,
y1,
y2,
r0,
r1,
r2,
len,
lastRadius,
dis = 0,
time = 0,
curveValue = 0.5;
if (line.length <= 2) {
x0 = line[1].x;
y0 = line[1].y;
x2 = line[1].x + (line[0].x - line[1].x) * curveValue;
y2 = line[1].y + (line[0].y - line[1].y) * curveValue;
//x2 = line[1].x;
//y2 = line[1].y;
x1 = x0 + (x2 - x0) * curveValue;
y1 = y0 + (y2 - y0) * curveValue;
} else {
x0 = line[2].x + (line[1].x - line[2].x) * curveValue;
y0 = line[2].y + (line[1].y - line[2].y) * curveValue;
x1 = line[1].x;
y1 = line[1].y;
x2 = x1 + (line[0].x - x1) * curveValue;
y2 = y1 + (line[0].y - y1) * curveValue;
}
//从计算公式看，三个点分别是(x0,y0),(x1,y1),(x2,y2) ；(x1,y1)这个是控制点，控制点不会落在曲线上；实际上，这个点还会手写获取的实际点，却落在曲线上
len = this.distance({
x: x2,
y: y2
}, {
x: x0,
y: y0
});
lastRadius = this.radius;
for (let n = 0; n < line.length - 1; n++) {
dis += line[n].dis;
time += line[n].time - line[n + 1].time;
if (dis > this.smoothness) break;
}
this.radius = Math.min((time / len) * this.pressure + this.lineMin, this.lineMax) * this.lineSize;
line[0].r = this.radius;
//计算笔迹半径；
if (line.length <= 2) {
r0 = (lastRadius + this.radius) / 2;
r1 = r0;
r2 = r1;
//return;
} else {
r0 = (line[2].r + line[1].r) / 2;
r1 = line[1].r;
r2 = (line[1].r + line[0].r) / 2;
}
let n = 5;
let point = [];
for (let i = 0; i < n; i++) {
let t = i / (n - 1);
let x = (1 - t) * (1 - t) * x0 + 2 * t * (1 - t) * x1 + t * t * x2;
let y = (1 - t) * (1 - t) * y0 + 2 * t * (1 - t) * y1 + t * t * y2;
let r = lastRadius + ((this.radius - lastRadius) / n) * i;
point.push({
x: x,
y: y,
r: r
});
if (point.length == 3) {
let a = this.ctaCalc(point[0].x, point[0].y, point[0].r, point[1].x, point[1].y, point[1].r, point[
2].x, point[2]
.y, point[2].r);
a[0].color = this.lineColor;
// let bethelPoint = this.bethelPoint;
// bethelPoint = bethelPoint.push(a);
this.bethelDraw(a, 1);
point = [{
x: x,
y: y,
r: r
}];
}
}
this.currentLine = line;
},
//求两点之间距离
distance (a, b) {
let x = b.x - a.x;
let y = b.y - a.y;
return Math.sqrt(x * x + y * y);
},
ctaCalc (x0, y0, r0, x1, y1, r1, x2, y2, r2) {
let a = [],
vx01,
vy01,
norm,
n_x0,
n_y0,
vx21,
vy21,
n_x2,
n_y2;
vx01 = x1 - x0;
vy01 = y1 - y0;
norm = Math.sqrt(vx01 * vx01 + vy01 * vy01 + 0.0001) * 2;
vx01 = (vx01 / norm) * r0;
vy01 = (vy01 / norm) * r0;
n_x0 = vy01;
n_y0 = -vx01;
vx21 = x1 - x2;
vy21 = y1 - y2;
norm = Math.sqrt(vx21 * vx21 + vy21 * vy21 + 0.0001) * 2;
vx21 = (vx21 / norm) * r2;
vy21 = (vy21 / norm) * r2;
n_x2 = -vy21;
n_y2 = vx21;
a.push({
mx: x0 + n_x0,
my: y0 + n_y0,
color: '#1A1A1A'
});
a.push({
c1x: x1 + n_x0,
c1y: y1 + n_y0,
c2x: x1 + n_x2,
c2y: y1 + n_y2,
ex: x2 + n_x2,
ey: y2 + n_y2
});
a.push({
c1x: x2 + n_x2 - vx21,
c1y: y2 + n_y2 - vy21,
c2x: x2 - n_x2 - vx21,
c2y: y2 - n_y2 - vy21,
ex: x2 - n_x2,
ey: y2 - n_y2
});
a.push({
c1x: x1 - n_x2,
c1y: y1 - n_y2,
c2x: x1 - n_x0,
c2y: y1 - n_y0,
ex: x0 - n_x0,
ey: y0 - n_y0
});
a.push({
c1x: x0 - n_x0 - vx01,
c1y: y0 - n_y0 - vy01,
c2x: x0 + n_x0 - vx01,
c2y: y0 + n_y0 - vy01,
ex: x0 + n_x0,
ey: y0 + n_y0
});
a[0].mx = a[0].mx.toFixed(1);
a[0].mx = parseFloat(a[0].mx);
a[0].my = a[0].my.toFixed(1);
a[0].my = parseFloat(a[0].my);
for (let i = 1; i < a.length; i++) {
a[i].c1x = a[i].c1x.toFixed(1);
a[i].c1x = parseFloat(a[i].c1x);
a[i].c1y = a[i].c1y.toFixed(1);
a[i].c1y = parseFloat(a[i].c1y);
a[i].c2x = a[i].c2x.toFixed(1);
a[i].c2x = parseFloat(a[i].c2x);
a[i].c2y = a[i].c2y.toFixed(1);
a[i].c2y = parseFloat(a[i].c2y);
a[i].ex = a[i].ex.toFixed(1);
a[i].ex = parseFloat(a[i].ex);
a[i].ey = a[i].ey.toFixed(1);
a[i].ey = parseFloat(a[i].ey);
}
return a;
},
bethelDraw (point, is_fill, color) {
// console.log('bethelDraw', point);
let ctx = this.ctx;
ctx.beginPath();
ctx.moveTo(point[0].mx, point[0].my);
if (undefined != color) {
ctx.setFillStyle(color);
ctx.setStrokeStyle(color);
} else {
ctx.setFillStyle(point[0].color);
ctx.setStrokeStyle(point[0].color);
}
for (let i = 1; i < point.length; i++) {
ctx.bezierCurveTo(point[i].c1x, point[i].c1y, point[i].c2x, point[i].c2y, point[i].ex, point[i].ey);
}
ctx.stroke();
if (undefined != is_fill) {
ctx.fill(); //填充图形 ( 后绘制的图形会覆盖前面的图形, 绘制时注意先后顺序 )
}
// console.log('开始画画');
ctx.draw(true);
},
selectColorEvent (str, color) {
this.selectColor = str;
this.lineColor = color;
},
//将Canvas内容转成 临时图片 --> cb 为回调函数 形参 tempImgPath 为 生成的图片临时路径
canvasToImg (cb) {
//这种写法移动端 出不来
this.ctx.draw(true, () => {
wx.canvasToTempFilePath({
canvasId: 'handWriting',
fileType: 'png',
quality: 1, //图片质量
success (res) {
wx.getImageInfo({
src: res.tempFilePath,
success: info => {
console.log('info.width', info.width)
console.log('info.height', info.height)
cb(res.tempFilePath);
}
})
// console.log(res.tempFilePath, 'canvas生成图片地址');
// wx.showToast({
// title: '执行了吗？'
// });
}
});
});
},
//完成
subCanvas () {
console.log(this.drawLine);
let role = this.role
if (this.chirography.length == 0&&!this.autoWrite) {
uni.showToast({
title: '请先签字',
icon: 'none'
})
return
}
let that = this
const query = wx.createSelectorQuery()
wx.canvasToTempFilePath({
canvasId: 'handWriting',
fileType: 'png',
destHeight: 1908,
destWidth: 798,
quality: 1, //图片质量
success (res) {
wx.getImageInfo({
src: res.tempFilePath,
success: info => {
console.log('info.width', info.width)
console.log('info.height', info.height)
}
})
console.log(res, 'canvas生成图片地址');
uni.getFileSystemManager().readFile({
filePath: res.tempFilePath,
encoding: 'base64',
success: r => {
// 拿到签署类型告诉后端是走人脸识别还是新的视频操作
that.$http.post(that.$api.getOrderSignType, {
"gzOrderId": that.gzOrderId,
}).then(signtypeRes => {
console.log('签署类型', signtypeRes);
that.signType = signtypeRes;
console.log('本地签署类型', that.signType);
// 8888
let base64 = 'data:image/png;base64,' + r.data;
that.$http.post(that.$api.userSignWithSeal, {
"gzOrderId": that.gzOrderId,
"sealBase64": r.data,
"userId": that.userId,
"userType": uni.getStorageSync("role"),
// 签署用户类型
'signUserType': that.signUserType,
signType: that.signType,
returnUrl: '/pagesInput/handleInput/inputResult/index',
phoneType: uni.getSystemInfoSync()
.platform == 'android' || uni
.getSystemInfoSync()
.platform == 'devtools' ? '1' : '2',
}).then(res => {
let platform = uni.getSystemInfoSync()
.platform
console.log('platform', platform);
if (res.transStaus == "000000") {
uni.setStorageSync('faceOrderId', 0)
that.androidOrPhone(res.tokenType, res
.faceidToken)
}
})
})
// 888
}
})
}
});
},
androidOrPhone (phoneType, faceidToken) {
let that = this
let path1 =
`pages/meeting/waiting/waiting?gzOrderId=${that.gzOrderId}&roles=${that.role}&token=${uni.getStorageSync('token')}&signType=${that.signType}&hostUrl=${uni.getStorageSync('hostUrl')}&customerCoreNo=${that.userId}`
let path2 =
`pages/meeting/waiting/waiting?gzOrderId=${that.gzOrderId}&roles=${that.role}&token=${uni.getStorageSync('token')}&signType=${that.signType}&customerCoreNo=${that.userId}`
// 安卓
if (phoneType == 1) {
console.log('安卓');
if (that.signType == "NormalSign" || uni
.getStorageSync('realNameSign') == 1
) {
// 正常签署
// 聚美
uni.setStorageSync('faceOrderId', that.gzOrderId)
let url =
`https://api-h5.jumdata.com/lifecheck/v2/check/index`
uni.navigateTo({
url: `/shareWeb/shareWeb?url=${url}&token=${faceidToken}`
})
} else {
if (that.signStatus == 8) {
uni.setStorageSync('faceOrderId', that.gzOrderId)
let url =
`https://api-h5.jumdata.com/lifecheck/v2/check/index`
uni.navigateTo({
url: `/shareWeb/shareWeb?url=${url}&token=${faceidToken}`
})
} else {
console.log('视频签署');
// 去视频里面签署
uni.navigateToMiniProgram({
appId: uni
.getStorageSync(
'hostUrl') ?
'wxc325b5e1ff7fcc5d' : appId,
path: uni
.getStorageSync(
'hostUrl') ?
path1 : path2,
extraData: {
gzOrderId: that
.gzOrderId,
roles: that.role,
customerCoreNo: that
.userId,
signType: that
.signType
},
envVersion: 'trial'
})
}
}
// 苹果
} else if (phoneType == 2) {
console.log('苹果');
// e证通
if (that.signType == "NormalSign" || uni
.getStorageSync('realNameSign') == 1
) {
console.log('e证通');
startEid({
data: {
token: faceidToken,
},
verifyDoneCallback (
res) {
const {
token,
verifyDone
} = res;
console.log(
'收到核身完成的res:',
res);
console.log(
'核身的token是:',
token);
console.log(
'是否完成核身:',
verifyDone);
if (verifyDone) {
if (uni
.getStorageSync(
'role'
) == 0 || that.signStatus == 8
) {
uni.switchTab({
url: `/pages/userIndex/userIndex?gzOrderId=${that.gzOrderId}userId=${that.userId}`
})
} else {
uni.navigateTo({
url: '/selectFunc/index?customerCoreNo=' +
uni
.getStorageSync(
'customerCoreNo'
)
})
}
}
},
});
} else {
if (that.signStatus == 8) {
console.log('是苹果也是视屏签署但是只签字不视频ss');
startEid({
data: {
token: faceidToken,
},
verifyDoneCallback (
res) {
const {
token,
verifyDone
} = res;
console.log(
'收到核身完成的res:',
res);
console.log(
'核身的token是:',
token);
console.log(
'是否完成核身:',
verifyDone);
if (verifyDone) {
if (uni
.getStorageSync(
'role'
) == 0 || that.signStatus == 8
) {
uni.switchTab({
url: `/pages/userIndex/userIndex?gzOrderId=${that.gzOrderId}userId=${that.userId}`
})
} else {
uni.navigateTo({
url: '/selectFunc/index?customerCoreNo=' +
uni
.getStorageSync(
'customerCoreNo'
)
})
}
}
},
});
} else {
uni.navigateToMiniProgram({
appId: uni
.getStorageSync(
'hostUrl') ?
'wxc325b5e1ff7fcc5d' : appId,
path: uni
.getStorageSync(
'hostUrl') ?
path1 : path2,
extraData: {
gzOrderId: that
.gzOrderId,
roles: that.role,
customerCoreNo: that
.userId,
signType: that
.signType
},
envVersion: 'trial'
})
}
}
} else {
// 视频签
uni.navigateToMiniProgram({
appId: uni
.getStorageSync(
'hostUrl') ?
'wxc325b5e1ff7fcc5d' : appId,
path: uni
.getStorageSync(
'hostUrl') ?
path1 : path2,
extraData: {
gzOrderId: that
.gzOrderId,
roles: that.role,
customerCoreNo: that
.userId,
signType: that
.signType
},
envVersion: 'trial'
})
}
},
//保存到相册
saveCanvasAsImg () {
/*
this.canvasToImg( tempImgPath=>{
// console.log(tempImgPath, '临时路径');
wx.saveImageToPhotosAlbum({
filePath: tempImgPath,
success(res) {
wx.showToast({
title: '已保存到相册',
duration: 2000
});
}
})
} );
*/
wx.canvasToTempFilePath({
canvasId: 'handWriting',
fileType: 'png',
quality: 1, //图片质量
success (res) {
// console.log(res.tempFilePath, 'canvas生成图片地址');
wx.saveImageToPhotosAlbum({
filePath: res.tempFilePath,
success (res) {
wx.showToast({
title: '已保存到相册',
duration: 2000
});
}
});
}
});
},
//预览
previewCanvasImg () {
// wx.canvasToTempFilePath({
// canvasId: 'handWriting',
// fileType: 'png',
// quality: 1, //图片质量
// success (res) {
// // console.log(res.tempFilePath, 'canvas生成图片地址');
// wx.previewImage({
// urls: [res.tempFilePath] //预览图片 数组
// });
// }
// });
this.canvasToImg( tempImgPath=>{
console.log('tempImgPath',tempImgPath);
setTimeout(()=>{
wx.previewImage({
urls: [tempImgPath], //预览图片 数组
})
},500)
} );
/* //移动端出不来 ^~^！！
this.canvasToImg( tempImgPath=>{
wx.previewImage({
urls: [tempImgPath], //预览图片 数组
})
} );
*/
},
//上传
uploadCanvasImg () {
if (this.chirography.length == 0) {
uni.showToast({
title: '请先签字'
})
} else {
wx.canvasToTempFilePath({
canvasId: 'handWriting',
fileType: 'png',
quality: 1, //图片质量
success (res) {
console.log(res.tempFilePath, 'canvas生成图片地址');
}
});
}
},
//设置canvas背景色 不设置 导出的canvas的背景为透明
//@params：字符串 color
setCanvasBg (color) {
/* 将canvas背景设置为 白底，不设置 导出的canvas的背景为透明 */
//rect() 参数说明 矩形路径左上角的横坐标，左上角的纵坐标, 矩形路径的宽度, 矩形路径的高度
//这里是 canvasHeight - 4 是因为下边盖住边框了，所以手动减了写
this.ctx.rect(0, 0, this.canvasWidth, this.canvasHeight - 4);
// ctx.setFillStyle('red')
this.ctx.setFillStyle(color);
this.ctx.fill(); //设置填充
this.ctx.draw(); //开画
},
justSign (sealBase64) {
let that = this
that.$http.post(that.$api.userSignWithSeal, {
"gzOrderId": that.gzOrderId,
"sealBase64": sealBase64,
"userId": that.userId,
returnUrl: '/pagesInput/handleInput/inputResult/index',
"userType": uni.getStorageSync("role"),
// 签署用户类型
'signUserType': that.signUserType,
signType: that.signType,
phoneType: '2'
}).then(res => {
console.log('本地签署类型justSign', that.signType);
// 正常签署
if (res.faceidToken != "DONE") {
startEid({
data: {
token: res.faceidToken,
},
verifyDoneCallback (res) {
const {
token,
verifyDone
} = res;
console.log('收到核身完成的res:', res);
console.log(
'核身的token是:',
token);
console.log('是否完成核身:',
verifyDone);
if (verifyDone) {
if (uni
.getStorageSync(
'role') == 0
) {
uni.switchTab({
url: `/pages/userIndex/userIndex?gzOrderId=${that.gzOrderId}userId=${that.userId}`
})
} else {
uni.navigateTo({
url: '/selectFunc/index?customerCoreNo=' +
uni
.getStorageSync(
'customerCoreNo'
)
})
}
}
},
});
} else {
uni.showToast({
title: '签署已完成',
icon: 'error'
})
}
})
}
}
};
</script>
<style lang="scss">
page {
background: #fbfbfb;
height: auto;
overflow: hidden;
}
.bgi{
position: absolute;
width: 300px;
height: 95vh;
// z-index: 99;
.image{
width: 100%;
height: 100%;
}
}
.wrapper {
width: 100%;
height: 95vh;
margin: 30rpx 0;
overflow: hidden;
display: flex;
align-content: center;
flex-direction: row;
justify-content: center;
font-size: 28rpx;
}
.handWriting {
background: #fff;
/* width: 100%; */
/* height: 95vh; */
width: 300px;
height: 95vh;
}
.handRight {
display: inline-flex;
align-items: center;
}
.handCenter {
/* border: 4rpx dashed #e9e9e9;
*/
border: 4rpx dashed #666;
flex: 5;
overflow: hidden;
box-sizing: border-box;
height: 95vh;
width: 300px;
}
.handTitle {
transform: rotate(90deg);
flex: 1;
color: #666;
}
.handBtn button {
font-size: 28rpx;
}
.handBtn {
height: 95vh;
display: inline-flex;
flex-direction: column;
justify-content: space-between;
align-content: space-between;
flex: 1;
}
.delBtn {
position: absolute;
top: 250rpx;
left: 0rpx;
transform: rotate(90deg);
color: #666;
}
.delBtn image {
position: absolute;
top: 13rpx;
left: 25rpx;
}
.subBtn {
position: absolute;
bottom: 52rpx;
left: -3rpx;
display: inline-flex;
transform: rotate(90deg);
background: #008ef6;
color: #fff;
margin-bottom: 30rpx;
text-align: center;
justify-content: center;
z-index: 999999;
}
/*Peach - 新增 - 保存*/
.saveBtn {
position: absolute;
top: 375rpx;
left: 0rpx;
transform: rotate(90deg);
color: #666;
}
.previewBtn {
position: absolute;
top: 500rpx;
left: 0rpx;
transform: rotate(90deg);
color: #666;
}
.previewBtn1 {
position: absolute;
top: 700rpx;
left: -30rpx;
transform: rotate(90deg);
background: #008ef6;
color: #fff;
}
.uploadBtn {
position: absolute;
top: 625rpx;
left: 0rpx;
transform: rotate(90deg);
color: #666;
}
/*Peach - 新增 - 保存*/
.black-select {
width: 60rpx;
height: 60rpx;
position: absolute;
top: 30rpx;
left: 25rpx;
}
.black-select.color_select {
width: 90rpx;
height: 90rpx;
top: 100rpx;
left: 10rpx;
}
.red-select {
width: 60rpx;
height: 60rpx;
position: absolute;
top: 140rpx;
left: 25rpx;
}
.red-select.color_select {
width: 90rpx;
height: 90rpx;
top: 120rpx;
left: 10rpx;
}
</style>
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回答
置顶ios扫码进入页面undefined，canvas组件ios会出现字迹清除这是为什么？精选热门
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- install iOS simulator: Mini Program/Development/Extended/Operating Guide/About debugging/install iOS simulator
- Eliminate iOS Signature Certificate Cache: Mini Program/Development/Extended/Operating Guide/About packaging/Eliminate iOS Signature Certificate Cache
- generate iOS Certificates and Provisioning Profile: Mini Program/Development/Extended/Operating Guide/About packaging/Generate iOS Certificates and Provisioning Profile
请具体描述问题出现的流程，并提供能复现问题的简单代码片段（https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html）。
问题出现的流程：ios部分机型形式canvas组件画图时，无法作图，字迹会被清除，安卓机没有此情况https://developers.weixin.qq.com/s/D2Xa8Wm277Pm；
页面在sign.vue文件中