javascript - 怎么监听手机端屏幕的滑动以及滑动距离顶端的距离啊？

Question

怎么监听手机端屏幕的滑动啊，同时计算出滚动距离顶部多少？

$('body').bind('touchmove', function(e) {
       var  winHeight = $(window).scrollTop();
        console.log(winHeight);
    });

我这样写的一直是0？ 监听scroll没效果的！求大神

Answer 1

$(window).scroll(function () {
  // 你的代码
});

Answer 2

$('body').on("touchstart",function(ev){
        var  winHeight = $(window).scrollTop();
        $('body').on("touchmove",function(ev){
            console.log(winHeight);
        })
    });

你试试这样写看看呗

Answer 3

window.addEventListener('scroll',function(){
  console.log(window.scrollY)
})

Answer 4

  let oB = document.getElementById('objEl')
  let oBh = oB.offsetTop
  oB.addEventListener('touchstart', function (e) {
    startX = e.touches[0].pageX
    startY = e.touches[0].pageY
  })
  oB.addEventListener('touchmove', function (e) {
    let endX = e.changedTouches[0].pageX
    let endY = e.changedTouches[0].pageY 
  }, false)
  oB.addEventListener('touchend', function () {
    // ...
  })