Javascript 向下滚动时角度隐藏标题,向上滚动时显示
我正试图用AngularJS重现这把小提琴 实际上,当用户向下滚动页面时,Javascript 向下滚动时角度隐藏标题,向上滚动时显示,javascript,css,angularjs,angularjs-directive,angularjs-scope,Javascript,Css,Angularjs,Angularjs Directive,Angularjs Scope,我正试图用AngularJS重现这把小提琴 实际上,当用户向下滚动页面时,标题将消失。如果在任何时候,用户向上滚动,即使是1/2px。。。标题将下拉 我创建了一个plunker:它似乎应用了隐藏头类,但是,我似乎无法出现在scrollUp上 指令: app.directive("myDirective", function ($window) { return function(scope, element, attrs) { angular.element($windo
标题将消失。如果在任何时候,用户向上滚动,即使是1/2px。。。标题将下拉
我创建了一个plunker:它似乎应用了隐藏头类,但是,我似乎无法出现在scrollUp上
指令:
app.directive("myDirective", function ($window) {
return function(scope, element, attrs) {
angular.element($window).bind("scroll", function() {
var lastScrollTop = 0;
var delta = 50;
var windowInnerHeight = $window.innerHeight;
var windowHeight = $window.height;
var st = this.pageYOffset;
// Make sure they scroll more than delta
if(Math.abs(lastScrollTop - st) <= delta)
return;
// If they scrolled down and are past the navbar, add class .nav-up.
// This is necessary so you never see what is "behind" the navbar.
//if (st > lastScrollTop && st > navbarHeight){
if (st > lastScrollTop && st > 50){
// Scroll Down
//$('header').removeClass('nav-down').addClass('nav-up');
console.log("in if...");
scope.navUp = true;
} else {
// Scroll Up
if(st + windowInnerHeight < windowHeight) {
//$('header').removeClass('nav-up').addClass('nav-down');
console.log("in else...");
}
}
lastScrollTop = st;
scope.$apply();
});
};
});
app.directive(“myDirective”),函数($window){
返回函数(范围、元素、属性){
元素($window).bind(“滚动”,函数(){
var lastScrollTop=0;
varδ=50;
var windowInnerHeight=$window.innerHeight;
var windowHeight=$window.height;
var st=此.pageYOffset;
//确保它们滚动的次数大于增量
if(Math.abs(lastScrollTop-st)lastScrollTop&&st>navbarHeight){
如果(st>lastScrollTop&&st>50){
//向下滚动
//$('header').removeClass('nav-down').addClass('nav-up');
console.log(“如果…”则登录);
scope.navUp=true;
}否则{
//向上滚动
if(st+windowInnerHeight
HTML:
- 项目1
- 项目2
- 项目3
- 项目4
您可以使用headloom.js在向下滚动时隐藏标题。使用AngularJS可以轻松实现该脚本
在AngularJS应用程序模块中包括和要求净空模块
javascript angular.module('app', [ // your requires 'headroom' ]);
然后在标记中使用该指令:
html
<header headroom></header>
<!-- or -->
<headroom></headroom>
<!-- or with options -->
<headroom tolerance='0' offset='0' scroller=".my-scroller" classes="{pinned:'headroom--pinned',unpinned:'headroom--unpinned',initial:'headroom'}"></headroom>
html
在快速提问之前从未见过{true:'hide header'}[navUp]这样的符号。我正在使用Angular seed()进行游戏。我安装了header,就像github所说的js,视图现在不会显示在seed应用程序上。
html
<header headroom></header>
<!-- or -->
<headroom></headroom>
<!-- or with options -->
<headroom tolerance='0' offset='0' scroller=".my-scroller" classes="{pinned:'headroom--pinned',unpinned:'headroom--unpinned',initial:'headroom'}"></headroom>