我正在尝试以不同的y滚动间隔在固定位置弹出文本,但是,我似乎无法正确链接脚本。它似乎跳过显示第一条消息的第一个动作。
var startY = 1500;
var stopY = 2000;
$(window).scroll(function(){
checkY();
});
function checkY()
{
console.log($(window).scrollTop());
if($(window).scrollTop() > startY && $(window).scrollTop() <= stopY)
{
console.log("Show");
$('.titleTwo').show();
}
else
{
console.log("Hide");
$('.titleTwo').hide();
} }
checkY();
答案 0 :(得分:2)
您的功能应该有不同的名称。尝试
var startY1 = 900;
var stopY1 = 1800;
var startY2 = 1801;
var stopY2 = 2500;
$(window).scroll(function(){
checkY();
});
function checkY()
{
console.log($(window).scrollTop());
if($(window).scrollTop() > startY1 && $(window).scrollTop() <= stopY1)
{
console.log("Show");
$('.foxedDiv').show();
}
else
{
console.log("Hide");
$('.foxedDiv').hide();
}
if($(window).scrollTop() > startY2 && $(window).scrollTop() <= stopY2)
{
console.log("Show");
$('.foxedDivved').show();
}
else
{
console.log("Hide");
$('.foxedDivved').hide();
}
}
checkY();
固定小提琴:
答案 1 :(得分:1)
这种情况正在发生,因为您已覆盖以前的值/功能。为了使其更加动态,您可以将data- *属性添加到每个消息元素,以指定它们有效的位置。然后在滚动事件中检查每个元素的位置数据,如果窗口在该范围内,则显示它,否则隐藏它。
HTML
<!-- Changed the classes both elements had to foxedDiv
so that we can select them as a group and loop over them -->
<div class="foxedDiv" data-position="900,1800">
MESSAGE 1
</div>
<div class="foxedDiv" data-position="1801,2500">
MESSAGE 2
</div>
JS
//Note you do not need to make an anonymous
//function just to do the call for checkY
//just pass the function
$(window).scroll(checkY);
function checkY(){
//save this value so we dont have to call the function everytime
var top = $(window).scrollTop();
console.log(top);
$(".foxedDiv").each(function(){
var positionData = $(this).data("position").split(",");
if(top > positionData[0] && top <= positionData[1]){
console.log("Show");
$(this).show();
} else {
console.log("Hide");
$(this).hide();
}
});
}
checkY();