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| <template>
| <view class="">
| <view class="title">{{verifyText}}</view>
| <view class="container">
| <image :src="faceImg" v-if="faceImg" class="faceImg" mode="widthFix" />
| <camera class="camera" device-position="front" flash="off"></camera>
| </view>
|
| </view>
| </template>
|
| <script>
| let listener = null;
| let videoCtx = null;
| let VKSession = null;
| let faceVerifyTime = null; //面容验证倒计时
| export default {
| data() {
| return {
| faceImgHeight: 314,
| faceImgWidth: 314,
| face: {
| origin: {
| x: 0,
| y: 0
| },
| size: {
| width: 0,
| height: 0
| },
| points: []
| },
| verifyText: "请移动面容到框内",
| isCentre: false, //是否面容在正中间
| startVerify: false, //是否正在验证
| faceImg: "" //面容图片地址
| }
| },
| onLoad() {
| // this.getAuthSetting(); //获取权限
| this.initFaceVerify()
| },
| onUnload() {
| VKSession.destroy();
| },
| methods: {
| getAuthSetting() {
| wx.getSetting({
| success: (res) => {
| if (!res.authSetting['scope.camera']) {
| wx.showModal({
| title: '请允许获取摄像头权限',
| showCancel: false,
| complete: (modalRes) => {
| if (modalRes.confirm) {
| wx.openSetting({
| success: (settingRes) => {
| if (!settingRes.authSetting[
| 'scope.camera']) {
| this.getAuthSetting()
| } else {
| wx.navigateBack()
| }
| }
| })
| }
| }
| })
| }
| }
| })
| },
| initFaceVerify() {
| console.log('执行');
| videoCtx = null;
| listener = null;
| VKSession = null;
| videoCtx = wx.createCameraContext();
| let count = 0;
| listener = videoCtx.onCameraFrame((frame) => {
| count++;
| if (count === 5) {
| this.detectFace(frame);
| count = 0;
| }
| });
| VKSession = wx.createVKSession({
| version: 'v1',
| track: {
| plane: {
| mode: 1
| },
| face: {
| mode: 2
| }
| }
| });
| VKSession.on('updateAnchors', (anchors) => {
| // 有面容
| console.log(anchors, '有面容')
|
| if (this.data.startVerify) {
| return;
| }
| let anchor = anchors[0];
| this.setData({
| face: {
| points: anchor.points,
| origin: anchor.origin,
| size: anchor.size
| }
| }, () => {
| this.isFaceCentered()
| })
| })
| VKSession.on('removeAnchors', (anchors) => {
| // 面容消失
| if (this.data.startVerify) {
| return;
| }
| this.verifyText='请移动面容到框内'
| this.setData({
| verifyText: '请移动面容到框内',
| isCentre: false,
| face: {}
| }, () => {
| clearTimeout(faceVerifyTime)
| faceVerifyTime = null;
| })
| })
| setTimeout(() => {
| // 直接开始
| this.handleStart()
| }, 500);
| },
|
| picture() {
| this.setData({
| startVerify: true
| }, () => {
| clearTimeout(faceVerifyTime)
| faceVerifyTime = null;
| videoCtx.takePhoto({
| quality: 'original',
| success: (e) => {
| //上传照片接口，图片换成远端url地址 自行替换
| uploadImage(e.tempImagePath).then((res) => {
| this.setData({
| faceImg: res
| })
| wx.showLoading({
| title: '正在验证',
| })
|
| try {
| // 执行后端分析人脸
| api({
| img: res
| }).then((writeoffRes) => {
| //识别成功
| //自行处理识别成功结果
| }).catch(err => {
| wx.hideLoading();
| wx.showModal({
| title: err.msg,
| showCancel: false,
| confirmText: '重新核验',
| complete: (res) => {
| if (res.confirm) {
| this.setData({
| startVerify: false,
| faceImg: "",
| verifyText: '请移动面容到框内',
| isCentre: false,
| face: {}
| }, () => {
| this.handleStart()
| })
| }
| }
| })
| })
| } catch (error) {
| console.log(error)
| }
| }).catch(() => {
| this.setData({
| startVerify: false,
| faceImg: "",
| verifyText: '请移动面容到框内',
| isCentre: false,
| face: {}
| }, () => {
| this.handleStart()
| wx.showToast({
| title: '网络连接失败，请重试',
| })
| })
| })
| }
| })
| })
|
| },
| handleStart() {
| VKSession.start((errno) => {
| console.warn('VKSession.start errno', errno);
| });
| listener.start();
| },
| handleStop() {
| listener.stop({
| complete: (res) => {
| console.warn('listener.stop', res);
| }
| });
| VKSession.stop();
| },
| async detectFace(frame) {
| // 获取面容
| VKSession.detectFace({
| frameBuffer: frame.data,
| width: frame.width,
| height: frame.height,
| scoreThreshold: 0.8,
| sourceType: 0,
| modelMode: 2
| });
| },
| isFaceCentered() {
| // 判断面容是否在中间
| if (!this.data.face.points) {
| return;
| }
| let points = this.data.face.points[43]; //位置
| let size = this.data.face.size; //大小
| if (points.x > 0.65 || points.x < 0.4 || points.y > 0.65 || points.y < 0.35) {
| this.setData({
| verifyText: '请移动面容到框内',
| isCentre: false,
| face: {}
| }, () => {
| clearTimeout(faceVerifyTime)
| faceVerifyTime = null;
| })
| return
| } else if (size.width > 0.95 || size.width < 0.32) {
| this.setData({
| verifyText: '请移动面容显示完整面容',
| isCentre: false,
| face: {}
| }, () => {
| clearTimeout(faceVerifyTime)
| faceVerifyTime = null;
| })
| return
| }
| this.setData({
| verifyText: '请保持不动',
| isCentre: true
| }, () => {
| this.verifyCentre()
| })
| },
| verifyCentre() {
| // 开始验证面容
| if (faceVerifyTime || this.data.startVerify) {
| return
| } else {
| faceVerifyTime = setTimeout(() => {
| if (this.data.isCentre) {
| this.handleStop()
| this.picture()
| } else {
| clearTimeout(faceVerifyTime)
| faceVerifyTime = null;
| }
| }, 1500);
| }
| }
| }
|
| }
| </script>
|
| <style>
| .container {
| position: relative;
| padding: 200rpx 0;
| }
|
| .title {
| position: absolute;
| width: 100%;
| text-align: center;
| padding-top: 100rpx;
| font-size: 36rpx;
| }
|
| .camera {
| width: 600rpx;
| height: 600rpx;
| border-radius: 50% 50%;
| margin: 0 auto;
| }
|
| .faceImg {
| width: 600rpx;
| height: 600rpx;
| border-radius: 50% 50%;
| margin: 0 auto;
| position: absolute;
| z-index: 999;
| }
| </style>
|
|
