花了半天时间大概写了份 mui 的 d.ts ，mark一下

mui.min.d.ts

interface Subpages {  
  url: string  
  id: string  
  styles?: object  
  extras?: object  
}  

interface PreloadPages extends Subpages {  
  subpages?: Array<Subpages>  
}  

interface PullRefreshBase {  
  height?: string | number  
  auto?: boolean  
  contentrefresh?: string  
  callback: any  
}  
interface PullRefreshUp extends PullRefreshBase {  
  contentnomore?: string  
}  
interface pullRefreshDown extends PullRefreshBase {  
  style: 'circle'  
  color?: string  
  range?: string | number  
  offset?: string | number  
  contentdown?: string  
  contentover?: string  
}  
interface PullRefresh {  
  container: string  
  down?: pullRefreshDown  
  up?: PullRefreshUp  
}  

interface OffCanvas {  
  /** 显示 */  
  show (): void  
  /** 隐藏 */  
  close (): void  
  /** 切换 */  
  toggle (): void  
  /** 判断是否为显示状态 */  
  isShown (direction?: string): boolean  
}  

interface Numbox {  
  /** 获取当前值 */  
  getValue (): string  
  /** 动态设置新值 */  
  setValue (val: number): void  
  /** 更新选项 */  
  setOption (option: 'min' | 'step' | 'max', val: number): void  
}  

declare namespace mui {  
  /** 初始化 */  
  function init (options?: {  
    wipeBack?: boolean  
    swipe?: boolean  
    subpages?: Array<Subpages>  
    preloadPages?: Array<PreloadPages>  
    pullRefresh?: PullRefresh  
    gestureConfig?: {  
      tap?: boolean  
      doubletap?: boolean  
      longtap?: boolean  
      hold?: boolean  
      release?: boolean  
      swipeleft?: boolean  
      swiperight?: boolean  
      swipeup?: boolean  
      swipedown?: boolean  
      dragstart?: boolean  
      drag?: boolean  
      dragend?: boolean  
    }  
    keyEventBind?: {  
      backbutton?: boolean  
      menubutton?: boolean  
    }  
    beforeback?: Function  
    statusBarBackground?: string  
    preloadLimit?: number  
  }): void  
  /** 打开新窗口 */  
  function openWindow (options: {  
    url: string  
    id: string  
    styles?: object  
    extras?: object  
    createNew?: boolean  
    show?: {  
      autoShow?: boolean  
      aniShow?: object  
      duration?: number  
    }  
    waiting?: {  
      autoShow?: boolean  
      title?: string  
      options?: object  
    }  
  }): void  
  /** 自动消失消息提示框 */  
  function toast (message: string, options?: {  
    duration?: number | 'long' | 'short'  
    type?: 'div'  
  }): void  
  /** 警告框 */  
  function alert (message: string, title?: string, btnValue?: string, callback?: any, type?: 'div'): void  
  /** 确认框 */  
  function confirm (message: string, title?: string, btnValue?: string, callback?: any, type?: 'div'): void  
  /** 输入对话框 */  
  function prompt (message: string, title?: string, btnValue?: string, callback?: any, type?: 'div'): void  
  /** 触发 Dom 事件 */  
  function trigger (element: HTMLElement, event: string, data?: any): void  
  /** 触发自定义事件 */  
  function fire (target: any, event: string, data?: any): void  
  /** 遍历 */  
  function each (obj: any, callback: any): void  
  /** 合并对象 */  
  function extend (deep: boolean, target: any, ...object: Array<any>): void  
  /** 封装 setTimeOut */  
  function later (func: any, delay: number, context?: any): void  
  /** 滚动窗口屏幕到指定位置 */  
  function scrollTo (ypos: number, duration: number, callback?: any): void  
  /** 判断当前运行环境 */  
  let os: object & os  
  interface os {  
    /** 是否在 5+ 环境内 */  
    plus: boolean | undefined  
    /** 是否是流应用 */  
    stream: boolean | undefined  
    /** 是否为 IOS */  
    ios: boolean | undefined  
    /** 是否 iphone */  
    iphone: boolean | undefined  
    /** 是否 ipad */  
    ipad: boolean | undefined  
    /** 是否 android */  
    android: boolean | undefined  
    /** 是否 android 的 chrome 环境 */  
    isBadAndroid: boolean | undefined  
    /** 版本号 */  
    version: string  
  }  
  /** plusReady */  
  function plusReady (callback: any): void  
  /** 关闭最后一次弹出的对话框（H5模式） */  
  function closePopup (): void  
  /** 关闭所有对话框（H5模式） */  
  function closePopups (): void  
  /** 轮播 */  
  function slider (options: any): void  
  /** 创建遮罩 */  
  function createMask (callback: any): Mask  
  interface Mask {  
    /** 显示遮罩 */  
    show (): void  
    /** 关闭遮罩 */  
    close (): void  
  }  
  /** 选择器组件 picker */  
  class PopPicker {  
    constructor (options: { layer?: number, buttons?: Array<any>})  
    setData (options: Array<any>): void  
    pickers: Array<Picker>  
    getSelectedItem (): Array<Picker>  
    show (callback: any): void  
    hide (): void  
    dispose (): void  
  }  
  /** 日期选择器 DtPicker */  
  class DtPicker {  
    constructor (options?: any)  
    getSelectedItems (): any  
    show (callback?: any): void  
    hide (): void  
    dispose (): void  
  }  
  /** 打开新页面 */  
  function open (...options: Array<any>): any  
  /** 当前页面 */  
  function currentWebview (...options: Array<any>): any  
  /** 关闭窗口 */  
  function back (...options: Array<any>): any  
  /** 重写返回逻辑 */  
  function backFunction (...options: Array<any>): any  
  /** 双击退出应用 */  
  function backDouble (...options: Array<any>): any  
  /** 双击进入后台 */  
  function backTast (...options: Array<any>): any  
  /** 预加载 */  
  function preload (...options: Array<any>): any  
  /** Ajax */  
  function ajax (url?: string, settings?: {  
    async?: boolean  
    crossDomain?: boolean  
    data?: any  
    dataType?: 'xml' | 'html' | 'script' | 'json' | 'text'  
    error?: any  
    success?: any  
    timeout?: number  
    type?: 'GET' | 'POST'  
    headers?: any  
    processData?: boolean  
  }): void  
  /** Ajax post */  
  function post (url: string, data?: any, success?: any, dataType?: 'xml' | 'html' | 'script' | 'json' | 'text'): void  
  function get (...options: Array<any>): any  
  function getJSON (...options: Array<any>): any  
}  

interface Picker {  
  setSelectedValue (value: string, duration?: number, callback?: any): void  
  setSelectedIndex (index: number, duration?: number, callback?: any): void  
}  

interface Mui {  
  /** 绑定 Dom 事件 */  
  on (event: string, selector: string, callback: any): void  
  /** 取消事件绑定 */  
  off (event?: string, selector?: string): void  
  /** 遍历 */  
  each (callback: any): void  
  /** 弹出菜单 */  
  popover (status: 'show' | 'hide' | 'toggle', anchor?: HTMLElement | Element): void  
  /** 聚焦 input */  
  input (): void  
  /** 初始化数字输入框 numbox */  
  numbox (): Numbox  
  /** 侧滑菜单 */  
  offCanvas (active?: 'show' | 'close' | 'toggle'): OffCanvas  
  /** 滚动条 */  
  progressbar (options?: any): Progressbar  
  /** 透明标题栏 */  
  transparent (options: any): void  
  /** 区域滚动 */  
  scroll(options?: {  
    scrollY?: boolean  
    scrollX?: boolean  
    startX?: number  
    startY?: number  
    indicators?: boolean  
    deceleration?: number  
    bounce?: boolean  
  }): Scroll  
  /** 初始化 switch */  
  ['switch'] (): void  
}  

interface Scroll {  
  scrollTo (xpos: number, ypos: number, duration?: number): void  
  scrollToBottom (duration?: number): void  
}  
interface Progressbar {  
  show (): void  
  hide (): void  
  setProgress(param: any): void  
}  

/** Mui Dom 选择器 */  
declare function mui (dom: string): Mui & Array<HTMLElement>