wx.showToast({
  title: '成功',
  icon: 'succes',
  duration: 1000,
  mask:true
})

{
 "component": true
}

<view class='wx-toast-box' animation="{{animationData}}">
 <view class='wx-toast-content'>
  <view class='wx-toast-toast'>{{ content }}</view>
 </view>
</view>

.wx-toast-box{
 display: flex;
 width: 100%;
 justify-content: center;
 position: fixed;
 z-index: 999;
 bottom:80rpx;
 opacity: 0;
}
.wx-toast-content{
 max-width: 80%;
 border-radius:30rpx;
 padding: 30rpx;
 background: rgba(0, 0, 0, 0.6);
}
.wx-toast-toast{
 height: 100%;
 width: 100%;
 color: #fff;
 font-size: 28rpx;
 text-align: center;
}

Component({
 options: {
  multipleSlots: true // 在组件定义时的选项中启用多slot支持 
 },
 /** 
  * 私有数据,组件的初始数据 
  * 可用于模版渲染 
  */
 data: { // 弹窗显示控制 
  animationData: {},
  content: '提示内容'
 },
 /**
  * 组件的方法列表 
  */
 methods: {
  /** 
   * 显示toast，定义动画
   */
  showToast(val) {
   var animation = wx.createAnimation({
    duration: 300,
    timingFunction: 'ease',
   })
   this.animation = animation
   animation.opacity(1).step()
   this.setData({
    animationData: animation.export(),
    content: val
   })
   /**
    * 延时消失
    */
   setTimeout(function () {
    animation.opacity(0).step()
    this.setData({
     animationData: animation.export()
    })
   }.bind(this), 1500)
  }
 }
})

{
 "navigationBarTitleText": "登录注册",
 "usingComponents":{
  "toast": "../common/toast/toast"
 }
}

<view>
 <toast id='toast'>
 </toast>
</view>

onReady: function () {
  this.toast = this.selectComponent("#toast");
},
listenerLogin: function() {
  this.dialog.showToast('恭喜你，获得了toast');
},