<van-popup v-model="isTip" class="popInfo" :close-on-click-overlay="false">
 <div class="mainBody">
 <h3 class="systemTip">温馨提示</h3>
 <div class="confirm">
 由于ios系统需要手动获取访问动作与方向的权限，为保障游戏的正常进行，请在访问提示中点击允许。
 </div>
 </div>
 <button class="bottomButton" @click="handleInit">
 知道了
 </button>
</van-popup>

//引入shake.js
created(){
 this.initShake()
 const isAction = JSON.parse(localStorage.getItem('getAction'))
 var ua = navigator.userAgent.toLowerCase();
 if(ua.indexOf("like mac os x") > 0){
 var reg = /os [\d._]*/gi ;
 var verinfo = ua.match(reg) ;
 var version = (verinfo+"").replace(/[^0-9|_.]/ig,"").replace(/_/ig,".");
 if (parseFloat(version) >= 13.3 && !isAction){
 localStorage.setItem("getAction",true)
 this.isTip = true
 }
 }
},
methods:{
 initShake(){
 this.myShakeEvent = new Shake({
 threshold: 15, // 摇动阈值
 timeout: 1000 // 事件发生频率，是可选值
 });
 this.myShakeEvent.start();
 window.addEventListener('shake', xx);
 },
 handleInit(){
 this.isTip = false
 this.ios13granted()
 },
 ios13granted() {
 if (typeof DeviceMotionEvent.requestPermission === 'function') {
 DeviceMotionEvent.requestPermission().then(permissionState => {
 if (permissionState === 'granted') {
 this.initShake() //摇一摇
 } else if(permissionState === 'denied'){// 打开的链接不是https开头
 alert("当前IOS系统拒绝访问动作与方向。请退出微信，重新进入活动页面获取权限。或直接点击抽签桶参与活动")
 }
 }).catch((error) => {
 alert("请求设备方向或动作访问需要用户手势来提示")
 })
 } else {
 // 处理常规的非iOS 13+设备
 alert("处理常规的非iOS 13+设备")
 }
 },
}