vue实现可移动的悬浮按钮

本文实例为大家分享了vue实现可随处移动悬浮按钮的具体代码，供大家参考，具体内容如下

1.html代码

2.再data中定义

data() {
 return {
  isLoading: false,
  flags: false, //控制使用
  position: {
  x: 0,
  y: 0,
  },
  nx: "",
  ny: "",
  dx: "",
  dy: "",
  xPum: "",
  yPum: "",
 };
 },

3.js代码

methods: {
 callback() {
  this.$router.go(-1);
 },
 onRefresh() {
  // window.location.reload();
  setTimeout((res) => {
  console.log(res);
  this.isLoading = false;
  }, 1000);
 },
 down() {
  this.flags = true;
  var touch;
  if (event.touches) {
  touch = event.touches[0];
  } else {
  touch = event;
  }
  this.position.x = touch.clientX;
  this.position.y = touch.clientY;
  this.dx = this.$refs.fu.offsetLeft;
  this.dy = this.$refs.fu.offsetTop;
 },
 move() {
  if (this.flags) {
  var touch;
  if (event.touches) {
   touch = event.touches[0];
  } else {
   touch = event;
  }
  this.nx = touch.clientX - this.position.x;
  this.ny = touch.clientY - this.position.y;
  this.xPum = this.dx + this.nx;
  this.yPum = this.dy + this.ny;
  let width = window.innerWidth - this.$refs.fu.offsetWidth; //屏幕宽度减去自身控件宽度
  let height = window.innerHeight - this.$refs.fu.offsetHeight; //屏幕高度减去自身控件高度
  this.xPum < 0 && (this.xPum = 0);
  this.yPum < 0 && (this.yPum = 0);
  this.xPum > width && (this.xPum = width);
  this.yPum > height && (this.yPum = height);
  // if (this.xPum >= 0 && this.yPum >= 0 && this.xPum<= width &&this.yPum<= height) {
  this.$refs.fu.style.left = this.xPum + "px";
  this.$refs.fu.style.top = this.yPum + "px";
  // }
  //阻止页面的滑动默认事件
  document.addEventListener(
   "touchmove",
   function () {
   event.preventDefault();
   },
   false
  );
  }
 },
 //鼠标释放时候的函数
 end() {
  this.flags = false;
 },
 onClick() {
  //在这里我是作为子组件来使用的
  this.$emit("click");
 },
 },

4.style样式

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。