优美的小程序启动页（附源码）-CFANZ编程社区

优美的小程序启动页（附源码）

1. 看效果

优美的小程序启动页（附源码）_html

2.注意点

实现这一效果其实是很简单的，首先我们要把自己设置的启动页的路径写在app.jon中，注意小程序默认第一个路径是小程序加载的开始页。

优美的小程序启动页（附源码）_css3_02

其次我们的页面有时会出现这种情况，这是应为在x.json文件中未设置其头部导航栏的颜色。程序默认是白色。我们只需要在x.json中加navigationBarBackgroundColor": “你想要的颜色”。

优美的小程序启动页（附源码）_ide_03

3.实现

3.1：wxml

<!--start.wxml-->
<view class="container">
 <view class="remind-box" wx:if="{{remind}}">
 </view>
 <block wx:else>
  <view class="content">
   <view class="hd" style="transform:rotateZ({{angle}}deg);">
    <open-data class="logo" type="userAvatarUrl"></open-data>
    <image class="wave" src="/image/bo.png" mode="aspectFill"></image>
    <image class="wave wave-bg" src="/image/bo.png" mode="aspectFill"></image>
   </view>
   <view class="bd">
    <view class="confirm-btn">
     <button open-type="getUserInfo" lang="zh_CN" bindtap="goLogin">立即体验</button>
    </view>
    <view class="copyright">© {{year}} <text bindtap='goTeam'>2021 园子淘</text> </view>
   </view>
  </view>
 </block>
</view>

2.3：wcss

/**start.wxss**/
.container {
  background: #ffcc01;
  align-items: stretch;
  padding: 0;
  height: 100vh;
  overflow: hidden;
}
.content {
  flex: 1;
  display: flex;
  position: relative;
  z-index: 10;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding-bottom: 450rpx;
  background: -webkit-gradient(linear, left top, left bottom, from(rgba(244, 244, 244, 0)), color-stop(0.1, #f4f4f4), to(#f4f4f4));
  opacity: 0;
  transform: translate3d(0, 100%, 0);
  animation: rise 3s cubic-bezier(0.19, 1, 0.22, 1) .25s forwards;
}

@keyframes rise {
  0% {
    opacity: 0;
    transform: translate3d(0, 100%, 0);
  }

  50% {
    opacity: 1;
  }

  100% {
    opacity: 1;
    transform: translate3d(0, 450rpx, 0);
  }
}

.title {
  position: absolute;
  top: 30rpx;
  left: 50%;
  width: 600rpx;
  height: 200rpx;
  margin-left: -300rpx;
  opacity: 0;
  animation: show 2.5s cubic-bezier(0.19, 1, 0.22, 1) .5s forwards;
}

.smalltitle {
  position: absolute;
  top: 50rpx;
  left: 50%;
  width: 600rpx;
  height: 200rpx;
  margin-left: -300rpx;
  opacity: 0;
  animation: show 2.5s cubic-bezier(0.19, 1, 0.22, 1) .5s forwards;
}

@keyframes show {
  0% {
    opacity: 0;
  }

  100% {
    opacity: .95;
  }
}

.hd {
  position: absolute;
  top: 0;
  left: 50%;
  width: 1000rpx;
  margin-left: -500rpx;
  height: 200rpx;
  transition: all .35s ease;
}

.logo {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 200rpx;
  width: 160rpx;
  height: 160rpx;
  margin-left: -80rpx;
  animation: sway 10s ease-in-out infinite;
  opacity: .95;
  overflow: hidden;
  border-radius: 80rpx;
}

@keyframes sway {
  0% {
    transform: translate3d(0, 20rpx, 0) rotate(-15deg);
  }

  17% {
    transform: translate3d(0, 0rpx, 0) rotate(25deg);
  }

  34% {
    transform: translate3d(0, -20rpx, 0) rotate(-20deg);
  }

  50% {
    transform: translate3d(0, -10rpx, 0) rotate(15deg);
  }

  67% {
    transform: translate3d(0, 10rpx, 0) rotate(-25deg);
  }

  84% {
    transform: translate3d(0, 15rpx, 0) rotate(15deg);
  }

  100% {
    transform: translate3d(0, 20rpx, 0) rotate(-15deg);
  }
}

.wave {
  position: absolute;
  z-index: 3;
  right: 0;
  bottom: 0;
  opacity: 0.725;
  height: 260rpx;
  width: 2250rpx;
  animation: wave 10s linear infinite;
}

.wave-bg {
  z-index: 1;
  animation: wave-bg 10.25s linear infinite;
}

@keyframes wave {
  from {
    transform: translate3d(125rpx, 0, 0);
  }

  to {
    transform: translate3d(1125rpx, 0, 0);
  }
}

@keyframes wave-bg {
  from {
    transform: translate3d(375rpx, 0, 0);
  }

  to {
    transform: translate3d(1375rpx, 0, 0);
  }
}

.bd {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  animation: bd-rise 2s cubic-bezier(0.23, 1, 0.32, 1) .75s forwards;
  opacity: 0;
  margin-top: 6%;
}

@keyframes bd-rise {
  from {
    opacity: 0;
    transform: translate3d(0, 60rpx, 0);
  }

  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

form {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
}

.input-group {
  display: flex;
  align-items: center;
  padding: 25rpx 10rpx;
  margin: 40rpx 3%;
  background: #fff;
  border-radius: 5px;
  border: 2px solid #f4f4f4;
  transition: all .25s ease-in-out;
}

.input-group.active {
  border: 2px solid #7acfa6;
}

.input-label {
  color: #888;
  font-size: 13pt;
  height: 25rpx;
  line-height: 25rpx;
  padding: 0 25rpx;
  border-right: 1px solid #d8d8d8;
}

.input-group input,
.input-group picker {
  flex: 1;
  font-size: 13pt;
  min-height: 52rpx;
  height: 52rpx;
  line-height: 52rpx;
  padding: 0 25rpx;
}

.input-placeholder,
.input-group picker.placeholder {
  color: #ccc;
}

.login-help {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 30rpx;
  font-size: 10pt;
  color: #bbb;
}

.login-help-img {
  width: 11pt;
  height: 11pt;
  margin: 0 5rpx;
}

.confirm-logo {
  font-size: 13pt;
  line-height: 200px;
  height: 85rpx;
  text-align: center;
}

.confirm-btn button {
  font-size: 13pt;
  height: 85rpx;
  background: #ffcc01;
  color: black;
  text-align: center;
  border-radius: 50px;
  margin: 50% 20% 30% 20%;
}

.help {
  position: absolute;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.box {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  width: 80%;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 0 50px rgba(22, 22, 22, .35);
  transform: translate3d(0, -400rpx, 0);
}

.box-hd {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100rpx;
  border-bottom: 1px solid #eee;
}

.box-title {
  font-size: 13pt;
}

.box-close {
  position: absolute;
  right: 20rpx;
  width: 35rpx;
  height: 35rpx;
  padding: 15rpx;
}

.box-bd {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 15rpx 40rpx 30rpx;
}

.help-q {
  color: #999;
  font-size: 11pt;
  line-height: 200%;
  margin-top: 5rpx;
}

.help-a {
  text-indent: 1em;
  line-height: 160%;
  display: flex;
  flex-direction: column;
}

.help-a text {
  word-break: break-all;
}

/**登录动画**/
.login_video {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  width: 750rpx;
  margin-left: -375rpx;
  height: 1334rpx;
  margin-top: -667rpx;
}

.video_hidden {
  visibility: hidden;
}

page .wx-video-bar {
  display: none;
}

.copyright {
  font-size: 28rpx;
  color: #999;
  position: fixed;
  top: 85%;
  left: 0;
  right: 0;
  padding: 30rpx;
  text-align: center;
}

.copyright text {
  font-size: 28rpx;
  color: #118fff;
  margin-left: 15rpx;
}

3.3：js

//login.js
//获取应用实例
var app = getApp();
Page({
  data: {
    remind: '加载中',
    angle: 0,
    user: {}
  },
  onLoad: function() {
    var that = this
  },
  goLogin: function() {
    let that = this
    let user = wx.getStorageSync('user')
    if (!user) {
      wx.switchTab({
        url: '/pages/me/me',
      })
    } else {
      that.setData({
        user: user
      })
      wx.switchTab({
        url: '/pages/home/home',
      })
    }
  },
  onReady: function() {
    var that = this;
    setTimeout(function() {
      that.setData({
        remind: ''
      });
    }, 1000);
    wx.onAccelerometerChange(function(res) {
      var angle = -(res.x * 30).toFixed(1);
      if (angle > 14) {
        angle = 14;
      } else if (angle < -14) {
        angle = -14;
      }
      if (that.data.angle !== angle) {
        that.setData({
          angle: angle
        });
      }
    });
  }
});