TimelineLite is a piece of the Greensock TweenMax library that provides the ability to create sequenced animation with very little code or setup.
Key value:
fromTo( target:Object, duration:Number, fromVars:Object, toVars:Object, position:* )
Read More: https://egghead.io/lessons/angularjs-greensock-timelinelite-animation-sequences
Example:
angular.module(‘website‘, [‘ngAnimate‘])
.controller(‘MainCtrl‘, function ($scope) {
$scope.slides = [
{bg: ‘images/bg3.jpg‘, avatar: ‘images/john.png‘, title: ‘Big Boss‘, subtitle: ‘Monkey king‘},
{bg: ‘images/bg1.jpg‘, avatar: ‘images/joel.png‘, title: ‘Second Boss‘, subtitle: ‘Monkey leader‘},
{bg: ‘images/bg2.jpg‘, avatar: ‘images/lukas.png‘, title: ‘Other monkeys‘, subtitle: ‘MOPSI‘}
];
$scope.direction = ‘left‘;
$scope.currentIndex = 0;
$scope.setCurrentSlideIndex = function (index) {
$scope.direction = (index > $scope.currentIndex) ? ‘left‘ : ‘right‘;
$scope.currentIndex = index;
};
$scope.isCurrentSlideIndex = function (index) {
return $scope.currentIndex === index;
};
})
.animation(‘.slide-animation‘, function () {
return {
//remove the current card
beforeAddClass: function (element, className, done) {
if (className == ‘ng-hide‘) {
var scope = element.scope(),
finishPoint = element.parent().width();
console.log(element.parent().width());
if(scope.direction !== ‘right‘) finishPoint = -finishPoint;
TweenLite.to(element, 0.5, {left:finishPoint, ease: Ease.easeInOut, onComplete: done});
}
else {
done();
}
},
//fade in selected card
removeClass: function (element, className, done) {
if (className == ‘ng-hide‘) {
var scope = element.scope(),
startPoint = element.parent().width(),
//start a timeline
tl = new TimelineLite();
if(scope.direction === ‘right‘) startPoint = -startPoint;
//chain methods, animate one by one
//.fromTo( target:Object, duration:Number, fromVars:Object, toVars:Object, position:* )
//fromTo(element.find(‘.title‘), 0.5, { left: -200, alpha: 0}, {left:0, alpha:1, ease:Ease.easeInOut} )
//element.find(‘.title‘): find the element
//0.5: 500ms
//{left: -200, alpha: 0}: animate start with left: -200 and alpha : 0
//{left: 0, alpha: 1, ease: Ease.easeInOut}: animate end with left: 0....
tl.fromTo(element, 0.1, { left: startPoint}, {left:0, ease: Ease.easeInOut, onComplete: done})
.fromTo(element.find(‘.title‘), 0.5, { left: -200, alpha: 0}, {left:0, alpha:1, ease:Ease.easeInOut} )
.fromTo(element.find(‘.subtitle‘), 0.5, { left: -200, alpha: 0}, {left:0, alpha:1, ease:Ease.easeInOut} )
.fromTo(element.find(‘.avatar‘), 0.5, { left: 800, alpha: 0}, {left:380, alpha:1, ease:Ease.easeInOut} );
}
else {
done();
}
}
};
});
<!DOCTYPE html>
<html ng-app="website">
<head>
<meta charset="utf-8">
<title>Egghead.io - Greensock TimelineLite</title>
<link href="assets/css/bootstrap.css" rel="stylesheet">
<link rel="stylesheet" href="assets/css/timeline.greensock.css">
</head>
<body ng-controller="MainCtrl">
<div class="slider">
<div ng-repeat="slide in slides"
ng-hide="!isCurrentSlideIndex($index)"
class="slide slide-animation">
<img class="nonDraggableImage" ng-src="{{slide.bg}}">
<img class="nonDraggableImage avatar" ng-src="{{slide.avatar}}">
<h1 class="title"><span>{{slide.title}}</span></h1>
<h3 class="subtitle"><span>{{slide.subtitle}}</span></h3>
</div>
</div>
<div class="nav">
<div ng-repeat="slide in slides"
ng-class="{‘active‘:isCurrentSlideIndex($index)}"
ng-click="setCurrentSlideIndex($index)">
<h3>{{slide.title}}</h3>
</div>
</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular-animate.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/gsap/1.10.3/TweenMax.min.js"></script>
<script src="js/timeline.greensock.js"></script>
</body>
</html>
时间： 2025-01-16 14:21:24