1. <view class="modals modals-bottom-dialog" hidden="{{hideModal}}">
    2.     <view class="modals-cancel" bindtap="hideModal"></view>
    3.     <view class="bottom-dialog-body bottom-pos" animation="{{animationData}}"></view>
    4. </view>
    6. <button bindtap="showModal">点我</button>
    1. /*模态框*/
    2. .modals{position:fixed; z-index: 999; top:0; left: 0; right:0; bottom: 0;}
    3. .modals-cancel{position:absolute; z-index:1000; top:0; left: 0; right:0; bottom: 0; background-color: rgba(0,0,0,.5);}
    4. .bottom-dialog-body{position:absolute; z-index:10001; bottom:0; left:0; right:0; padding:30rpx; height:300rpx; background-color: #fff;}
    5. /*动画前初始位置*/
    6. .bottom-pos{-webkit-transform:translateY(100%);transform:translateY(100%);}
    1. Page({
    2.     data:{
    3.       hideModal:true, //模态框的状态  true-隐藏  false-显示
    4.       animationData:{},//
    5.     },
    7.   // 显示遮罩层
    8.     showModal: function () {
    9.     var that=this;
    10.     that.setData({
    11.       hideModal:false
    12.     })
    13.     var animation = wx.createAnimation({
    14.       duration: 600,//动画的持续时间 默认400ms   数值越大，动画越慢   数值越小，动画越快
    15.       timingFunction: 'ease',//动画的效果 默认值是linear
    16.     })
    17.     this.animation = animation 
    18.     setTimeout(function(){
    19.       that.fadeIn();//调用显示动画
    20.     },200)   
    21.   },
    23.   // 隐藏遮罩层
    24.   hideModal: function () {
    25.     var that=this; 
    26.     var animation = wx.createAnimation({
    27.       duration: 800,//动画的持续时间 默认400ms   数值越大，动画越慢   数值越小，动画越快
    28.       timingFunction: 'ease',//动画的效果 默认值是linear
    29.     })
    30.     this.animation = animation
    31.     that.fadeDown();//调用隐藏动画   
    32.     setTimeout(function(){
    33.       that.setData({
    34.         hideModal:true
    35.       })      
    36.     },720)//先执行下滑动画，再隐藏模块
    38.   },
    40.   //动画集
    41.   fadeIn:function(){
    42.     this.animation.translateY(0).step()
    43.     this.setData({
    44.       animationData: this.animation.export()//动画实例的export方法导出动画数据传递给组件的animation属性
    45.     })    
    46.   },
    47.   fadeDown:function(){
    48.     this.animation.translateY(300).step()
    49.     this.setData({
    50.       animationData: this.animation.export(),  
    51.     })
    52.   }, 
    53. })