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html5摇一摇代码优化包括DeviceMotionEvent等等

发布时间:2021-08-04 00:00| 位朋友查看

简介:首先对DeviceMotionEvent进行优化; 去除无用的代码,重新封装DeviceMotionEven 复制代码 代码如下: if(window.DeviceMotionEvent) { var speed = 25;//定义一个数值 var x = y = z = lastX = lastY = lastZ = 0;//重置所有数值 window.addEventListener('dev……
首先对DeviceMotionEvent进行优化

去除无用的代码,重新封装DeviceMotionEven

复制代码
代码如下:

if(window.DeviceMotionEvent) {
var speed = 25;//定义一个数值
var x = y = z = lastX = lastY = lastZ = 0;//重置所有数值
window.addEventListener('devicemotion', function(){
var acceleration =event.accelerationIncludingGravity;//将传感值赋给acceleration
x = acceleration.x;
y = acceleration.y;
z = acceleration.z;
if(Math.abs(x-lastX) > speed || Math.abs(y-lastY) > speed ) {
// TODO:在此处可以实现摇一摇之后所要进行的数据逻辑操作
donghua();
}
lastX = x;
lastY = y;
lastZ = z;
}, false);
}

由于实际项目中有很多需求无法很好的实现,

比如:动画不执行完毕就不能继续执行DeviceMotionEvent事件;

所以做了进一步优化;

复制代码
代码如下:

var f=1;
function donghua(){
//动画事件
$(".img").animate({left:'0',opacity:'1'},700,function(){f=1;});
});
if(window.DeviceMotionEvent) {
var speed = 25;//定义一个数值
var x = y = z = lastX = lastY = lastZ = 0;//重置所有数值
window.addEventListener('devicemotion', function(){
var acceleration =event.accelerationIncludingGravity;//将传感值赋给acceleration
x = acceleration.x;
y = acceleration.y;
z = acceleration.z;
if(Math.abs(x-lastX) > speed || Math.abs(y-lastY) > speed ) {
// TODO:在此处可以实现摇一摇之后所要进行的数据逻辑操作
if(f==1){
donghua();
f=0;
}
}
lastX = x;
lastY = y;
lastZ = z;
}, false);
}

现在就完美了

原文链接:https://m.jb51.net/html5/212308.html
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