曾在一家地产广告公司就职，做过许许多多，各式各样的创意H5，想起那时候给两天工期，用jQuery半天做一个H5，剩下时间摸鱼的美好时光，正值年关，分享一个十分简单且充满意义趣味十足的新年贺卡H5 原项目链接：新年贺卡
一个好看的创意H5，离不开优秀的设计和策划，他们功不可没，所以我们来聊聊技术 哈哈 1. 布局简单，使用绝对定位布局，快捷灵活，图片使用png格式，叠加使用z-index控制
2. 交互简单，一进页面是未拆封的信封，点击信封展开，贺卡缓缓出现，贺卡上的圆环类似窗户，里面的灯笼不断升起，烟花不停的绽放，彩蛋：信封展开后点击屏幕，会有canvas烟花效果 代码奉上：
//点击信封
$('.now_page').click(function(){
$(this).addClass('flip-animation-start');
$('.icon-leftjt,.icon-rightjt').hide();
setTimeout(function () {
$('.now_page').css('z-index','0');
$('.letter').show();
$('.envelope img').css('z-index','30');
},1000)
setTimeout(function () {
$('.empty_box').hide()
$('.ewm').show()
},3000)
}
动画效果：
//信封展开动画
.now_page{
position: absolute;
top: 5px;
left: 0;
right: 0;
margin: 0 auto;
transform-style: preserve-3d;/*设置翻转*/
z-index: 5;
}
.paper{
width: 5.8rem;
height: 3rem;
background: url("../images/paper.png") no-repeat;
background-size: 100% 100%;
position: absolute;
top: -5px;
left: 0;
right: 0;
margin: 0 auto;
z-index: 5;
transform-origin: top;
backface-visibility:hidden;
-webkit-backface-visibility:hidden;
}
.back{
width: 5.77rem;
height: 3.11rem;
background: url("../images/back.png") no-repeat;
background-size: 100% 100%;
position: absolute;
top: -5px;
left: 0;
right: 0;
margin: 0 auto;
z-index: 5;
transform:rotateX(180deg);
backface-visibility:hidden;
-webkit-backface-visibility:hidden;
}
//卡片缓缓升起动画
.letter{
width: 5.64rem;
height: 11.58rem;
position: absolute;
bottom: 0.7rem;
left: 0;
right: 0;
margin: 0 auto;
z-index: 3;
animation: heightChange 2s;
display: none;
}
@keyframes heightChange {
from{
transform: translate(0, 11.2rem);
}
to{
transform: translate(0, 0rem);
z-index: 0;
}
}
//灯笼缓缓升起动画
.light1{
width: 0.22rem;
height: 0.34rem;
background: url(../images/deng1.png) no-repeat;
background-size: 100% 100%;
position: absolute;
left: 1.6rem;
animation: goup3 5s 3s linear infinite;
}
.light2{
width: 0.09rem;
height: 0.13rem;
background: url(../images/deng2.png) no-repeat;
background-size: 100% 100%;
position: absolute;
/*top: 2.3rem;*/
left: 0.98rem;
animation: goup2 5s linear infinite;
}
.light3{
width: 0.14rem;
height: 0.23rem;
background: url(../images/deng3.png) no-repeat;
background-size: 100% 100%;
position: absolute;
transform: translate('1.9rem','2.8rem');
top: 0.2rem;
left: 2.4rem;
animation: goup1 6s 1s linear infinite;
}
@keyframes goup1 {
0%{
transform: translateY(2.5rem);
-webkit-transform: translateY(2.5rem);
}
75%{
transform: translateY(0rem);
-webkit-transform: translateY(0rem);
}
100%{
transform: translateY(0rem);
-webkit-transform: translateY(0rem);
}
}
@keyframes goup2 {
0%{
transform: translateY(2.8rem);
-webkit-transform: translateY(2.8rem);
}
75%{
transform: translateY(0.8rem);
-webkit-transform: translateY(0.8rem);
}
100%{
transform: translateY(0.8rem);
-webkit-transform: translateY(0.8rem);
opacity: 0;
}
}
@keyframes goup3 {
0%{
transform: translateY(2.5rem);
-webkit-transform: translateY(2.5rem);
opacity: 0;
}
10%{
opacity: 1;
}
75%{
transform: translateY(0rem);
-webkit-transform: translateY(0rem);
}
100%{
transform: translateY(0rem);
-webkit-transform: translateY(0rem);
opacity: 0;
}
}
//圆环内烟花绽放动画
.hua1{
width: 0.65rem;
height: 0.71rem;
background: url(../images/hua1.png) no-repeat;
background-size: 100% 100%;
position: absolute;
top: 1.2rem;
left: 1.08rem;
animation: scale1 4s infinite;
}
.hua2{
width: 0.42rem;
height: 0.41rem;
background: url(../images/hua2.png) no-repeat;
background-size: 100% 100%;
position: absolute;
top: 0.9rem;
left: 2.2rem;
animation: scale2 3s infinite;
}
@keyframes scale1 {
0%{ transform: scale(1,1);
-webkit-transform:scale(1,1) ;
opacity: 1;
}
100%{
transform: scale(1.5,1.5);
-webkit-transform:scale(1.5,1.5) ;
opacity: 0;
}
}
@keyframes scale2 {
0%{ transform: scale(1,1);
-webkit-transform:scale(1,1) ;
-moz-transform:scale(1,1) ;
-ms-transform:scale(1,1) ;
opacity: 0.6;
}
100%{
transform: scale(1.5,1.5);
-webkit-transform:scale(1.5,1.5) ;
opacity: 0;
}
}
3. 如果想要把贺卡分享到朋友圈，需要进行以下步骤
步骤一：绑定域名 登录微信公众平台进入“公众号设置”的“功能设置”里填写“JS接口安全域名”
步骤二：引入JS文件<script src=``"http://res.wx.qq.com/open/js/jweixin-1.0.0.js"type=``"text/javascript"``></script>
步骤三：通过config接口注入权限验证配置
wx.ready(function(){
// config信息验证后会执行ready方法，所有接口调用都必须在config接口获得结果之后，config是一个客户端的异步操作，所以如果需要在页面加载时就调用相关接口，则须把相关接口放在ready函数中调用来确保正确执行。对于用户触发时才调用的接口，则可以直接调用，不需要放在ready函数中。
console.log("Weixin初始化成功");
wx.checkJsApi({
jsApiList: ['onMenuShareTimeline','onMenuShareAppMessage'], // 需要检测的JS接口列表，所有JS接口列表见附录2,
success: function(res) {
// 以键值对的形式返回，可用的api值true，不可用为false
// 如：{"checkResult":{"chooseImage":true},"errMsg":"checkJsApi:ok"}
}
});
//分享朋友圈
wx.onMenuShareTimeline({
title:_title , // 分享标题
link: _link, // 分享链接
imgUrl: _imgUrl, // 分享图标
success: function () {
// 用户确认分享后执行的回调函数
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
//分享朋友
wx.onMenuShareAppMessage({
title: _title, // 分享标题
desc: _desc, // 分享描述
link: _link, // 分享链接
imgUrl: _imgUrl, // 分享图标
type: '', // 分享类型,music、video或link，不填默认为link
dataUrl: '', // 如果type是music或video，则要提供数据链接，默认为空
success: function () {
// 用户确认分享后执行的回调函数
},
cancel: function () {
// 用户取消分享后执行的回调函数
},
fail:function(res){
alert(res);
}
});
});
wx.error(function(res){
// config信息验证失败会执行error函数，如签名过期导致验证失败，具体错误信息可以打开config的debug模式查看，也可以在返回的res参数中查看，对于SPA可以在这里更新签名。
console.log("weixin初始化失败"+res);
});
4. 彩蛋：引入一个canvas Firework动画js更加酷炫
$(function(){
var Fireworks = function(){
var self = this;
var rand = function(rMi, rMa){return ~~((Math.random()*(rMa-rMi+1))+rMi);}
var hitTest = function(x1, y1, w1, h1, x2, y2, w2, h2){return !(x1 + w1 < x2 || x2 + w2 < x1 || y1 + h1 < y2 || y2 + h2 < y1);};
window.requestAnimFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(a){window.setTimeout(a,1E3/60)}}();
self.init = function(){
self.canvas = document.createElement('canvas');
self.canvas.width = self.cw = $(window).innerWidth();
self.canvas.height = self.ch = $(window).innerHeight();
self.particles = [];
self.partCount = 150;
self.fireworks = [];
self.mx = self.cw/2;
self.my = self.ch/2;
self.currentHue = 30;
self.partSpeed = 5;
self.partSpeedVariance = 10;
self.partWind = 50;
self.partFriction = 5;
self.partGravity = 1;
self.hueMin = 0;
self.hueMax = 360;
self.fworkSpeed = 4;
self.fworkAccel = 10;
self.hueVariance = 30;
self.flickerDensity = 25;
self.showShockwave = true;
self.showTarget = false;
self.clearAlpha = 25;
$(document.body).append(self.canvas);
self.ctx = self.canvas.getContext('2d');
self.ctx.lineCap = 'round';
self.ctx.lineJoin = 'round';
self.lineWidth = 1;
self.bindEvents();
self.canvasLoop();
self.canvas.onselectstart = function() {
return false;
};
};
self.createParticles = function(x,y, hue){
var countdown = self.partCount;
while(countdown--){
var newParticle = {
x: x,
y: y,
coordLast: [
{x: x, y: y},
{x: x, y: y},
{x: x, y: y}
],
angle: rand(0, 360),
speed: rand(((self.partSpeed - self.partSpeedVariance) <= 0) ? 1 : self.partSpeed - self.partSpeedVariance, (self.partSpeed + self.partSpeedVariance)),
friction: 1 - self.partFriction/100,
gravity: self.partGravity/2,
hue: rand(hue-self.hueVariance, hue+self.hueVariance),
brightness: rand(50, 80),
alpha: rand(40,100)/100,
decay: rand(10, 50)/1000,
wind: (rand(0, self.partWind) - (self.partWind/2))/25,
lineWidth: self.lineWidth
};
self.particles.push(newParticle);
}
};
self.updateParticles = function(){
var i = self.particles.length;
while(i--){
var p = self.particles[i];
var radians = p.angle * Math.PI / 180;
var vx = Math.cos(radians) * p.speed;
var vy = Math.sin(radians) * p.speed;
p.speed *= p.friction;
p.coordLast[2].x = p.coordLast[1].x;
p.coordLast[2].y = p.coordLast[1].y;
p.coordLast[1].x = p.coordLast[0].x;
p.coordLast[1].y = p.coordLast[0].y;
p.coordLast[0].x = p.x;
p.coordLast[0].y = p.y;
p.x += vx;
p.y += vy;
p.y += p.gravity;
p.angle += p.wind;
p.alpha -= p.decay;
if(!hitTest(0,0,self.cw,self.ch,p.x-p.radius, p.y-p.radius, p.radius*2, p.radius*2) || p.alpha < .05){
self.particles.splice(i, 1);
}
};
};
self.drawParticles = function(){
var i = self.particles.length;
while(i--){
var p = self.particles[i];
var coordRand = (rand(1,3)-1);
self.ctx.beginPath();
self.ctx.moveTo(Math.round(p.coordLast[coordRand].x), Math.round(p.coordLast[coordRand].y));
self.ctx.lineTo(Math.round(p.x), Math.round(p.y));
self.ctx.closePath();
self.ctx.strokeStyle = 'hsla('+p.hue+', 100%, '+p.brightness+'%, '+p.alpha+')';
self.ctx.stroke();
if(self.flickerDensity > 0){
var inverseDensity = 50 - self.flickerDensity;
if(rand(0, inverseDensity) === inverseDensity){
self.ctx.beginPath();
self.ctx.arc(Math.round(p.x), Math.round(p.y), rand(p.lineWidth,p.lineWidth+3)/2, 0, Math.PI*2, false)
self.ctx.closePath();
var randAlpha = rand(50,100)/100;
self.ctx.fillStyle = 'hsla('+p.hue+', 100%, '+p.brightness+'%, '+randAlpha+')';
self.ctx.fill();
}
}
};
};
self.createFireworks = function(startX, startY, targetX, targetY){
var newFirework = {
x: startX,
y: startY,
startX: startX,
startY: startY,
hitX: false,
hitY: false,
coordLast: [
{x: startX, y: startY},
{x: startX, y: startY},
{x: startX, y: startY}
],
targetX: targetX,
targetY: targetY,
speed: self.fworkSpeed,
angle: Math.atan2(targetY - startY, targetX - startX),
shockwaveAngle: Math.atan2(targetY - startY, targetX - startX)+(90*(Math.PI/180)),
acceleration: self.fworkAccel/100,
hue: self.currentHue,
brightness: rand(50, 80),
alpha: rand(50,100)/100,
lineWidth: self.lineWidth
};
self.fireworks.push(newFirework);
};
self.updateFireworks = function(){
var i = self.fireworks.length;
while(i--){
var f = self.fireworks[i];
self.ctx.lineWidth = f.lineWidth;
vx = Math.cos(f.angle) * f.speed,
vy = Math.sin(f.angle) * f.speed;
f.speed *= 1 + f.acceleration;
f.coordLast[2].x = f.coordLast[1].x;
f.coordLast[2].y = f.coordLast[1].y;
f.coordLast[1].x = f.coordLast[0].x;
f.coordLast[1].y = f.coordLast[0].y;
f.coordLast[0].x = f.x;
f.coordLast[0].y = f.y;
if(f.startX >= f.targetX){
if(f.x + vx <= f.targetX){
f.x = f.targetX;
f.hitX = true;
} else {
f.x += vx;
}
} else {
if(f.x + vx >= f.targetX){
f.x = f.targetX;
f.hitX = true;
} else {
f.x += vx;
}
}
if(f.startY >= f.targetY){
if(f.y + vy <= f.targetY){
f.y = f.targetY;
f.hitY = true;
} else {
f.y += vy;
}
} else {
if(f.y + vy >= f.targetY){
f.y = f.targetY;
f.hitY = true;
} else {
f.y += vy;
}
}
if(f.hitX && f.hitY){
self.createParticles(f.targetX, f.targetY, f.hue);
self.fireworks.splice(i, 1);
}
};
};
self.drawFireworks = function(){
var i = self.fireworks.length;
self.ctx.globalCompositeOperation = 'lighter';
while(i--){
var f = self.fireworks[i];
self.ctx.lineWidth = f.lineWidth;
var coordRand = (rand(1,3)-1);
self.ctx.beginPath();
self.ctx.moveTo(Math.round(f.coordLast[coordRand].x), Math.round(f.coordLast[coordRand].y));
self.ctx.lineTo(Math.round(f.x), Math.round(f.y));
self.ctx.closePath();
self.ctx.strokeStyle = 'hsla('+f.hue+', 100%, '+f.brightness+'%, '+f.alpha+')';
self.ctx.stroke();
if(self.showTarget){
self.ctx.save();
self.ctx.beginPath();
self.ctx.arc(Math.round(f.targetX), Math.round(f.targetY), rand(1,8), 0, Math.PI*2, false)
self.ctx.closePath();
self.ctx.lineWidth = 1;
self.ctx.stroke();
self.ctx.restore();
}
if(self.showShockwave){
self.ctx.save();
self.ctx.translate(Math.round(f.x), Math.round(f.y));
self.ctx.rotate(f.shockwaveAngle);
self.ctx.beginPath();
self.ctx.arc(0, 0, 1*(f.speed/5), 0, Math.PI, true);
self.ctx.strokeStyle = 'hsla('+f.hue+', 100%, '+f.brightness+'%, '+rand(25, 60)/100+')';
self.ctx.lineWidth = f.lineWidth;
self.ctx.stroke();
self.ctx.restore();
}
};
};
self.bindEvents = function(){
$(window).on('resize', function(){
clearTimeout(self.timeout);
self.timeout = setTimeout(function() {
self.canvas.width = self.cw = $(window).innerWidth();
self.canvas.height = self.ch = $(window).innerHeight();
self.ctx.lineCap = 'round';
self.ctx.lineJoin = 'round';
}, 100);
});
$(self.canvas).on('mousedown', function(e){
self.mx = e.pageX - self.canvas.offsetLeft;
self.my = e.pageY - self.canvas.offsetTop;
self.currentHue = rand(self.hueMin, self.hueMax);
self.createFireworks(self.cw/2, self.ch, self.mx, self.my);
$(self.canvas).on('mousemove.fireworks', function(e){
self.mx = e.pageX - self.canvas.offsetLeft;
self.my = e.pageY - self.canvas.offsetTop;
self.currentHue = rand(self.hueMin, self.hueMax);
self.createFireworks(self.cw/2, self.ch, self.mx, self.my);
});
});
$(self.canvas).on('mouseup', function(e){
$(self.canvas).off('mousemove.fireworks');
});
}
self.clear = function(){
self.particles = [];
self.fireworks = [];
self.ctx.clearRect(0, 0, self.cw, self.ch);
};
self.canvasLoop = function(){
requestAnimFrame(self.canvasLoop, self.canvas);
self.ctx.globalCompositeOperation = 'destination-out';
self.ctx.fillStyle = 'rgba(0,0,0,'+self.clearAlpha/100+')';
self.ctx.fillRect(0,0,self.cw,self.ch);
self.updateFireworks();
self.updateParticles();
self.drawFireworks();
self.drawParticles();
};
self.init();
}
var fworks = new Fireworks();
});
