分享網頁偵測搖一搖實例程式碼_javascript技巧

廢話不多說了，直接給大家貼程式碼了，具體程式碼如下圖：

var Shaker = function(f){
// 摇一摇: 检测到3次摇动算一次摇一摇, 摇动后调用处理函数, 不再检测摇动
// f 摇动后的回调
this.callback = f;
this.status = 0; // 0: 侦听未开始 1: 侦听开始 
this.speed = 15;
this.lastX = this.lastY = this.lastZ = 0;
this.num = 0; // 检测触发次数
this.minNum = 3; // 最小检测触发次数
this.beginSecond = 0; // 开始检测的秒数
this.maxSecond = 3; // 最大间隔秒数
this.handlerWrap = function(){};
}
Shaker.prototype.listen = function(){
// 侦听摇动
var that = this;
if (this.status == 0 && window.DeviceMotionEvent) {
this.status = 1;
this.handlerWrap = function(event){
that.handler(event)
}
window.addEventListener('devicemotion', this.handlerWrap, false);
}
}
Shaker.prototype.release = function(){
// 停止侦听
if(this.status == 1){
if (window.DeviceMotionEvent) {
window.removeEventListener('devicemotion', this.handlerWrap);
}
this.status = 0;
this.num = 0;
}
}
Shaker.prototype.reset = function(){
// 重置检测
if(this.status == 1){
this.num = 0;
}
}
Shaker.prototype.handler = function(event){
// 传感器事件处理
if(this.status == 1){
var acceleration =event.accelerationIncludingGravity;
var x = acceleration.x;
var y = acceleration.y;
var z = acceleration.z;
if( Math.abs(x-this.lastX) > this.speed || 
Math.abs(y-this.lastY) > this.speed || 
Math.abs(z-this.lastZ) > this.speed ) 
{
if(this.num == 0){
this.beginSecond = Date.parse(new Date()) / 1000
}
this.num += 1;
}
this.lastX = x;
this.lastY = y;
this.lastZ = z;
if(this.num >= this.minNum){
var now = Date.parse(new Date()) / 1000;
if(now - this.beginSecond <= this.maxSecond){
this.release();
if(this.callback){
this.callback();
}
}
this.reset();
}
}
}

用法:

var s = new Shaker(function(){ /*摇动后的回调*/ });
s.listen();

好了，本文所述給大家介紹到這裡，後續還會持續更新，希望本文給大家分享網頁檢測搖一搖實例代碼的相關知識對大家有所幫助。