npmchenwei111/app/manager/ActionBarManager.js

test1111

/**
 * Created by chenwei on 2017/8/30.
 */

class ActionBarManager {

  arr = []

  constructor () {
  }

  pushBar (comp) {
    this.arr.push(comp)
  }

  popBar () {
    this.arr.pop()
  }

  isTop (comp) {
    if (this.arr.length === 0) return true
    return this.arr[this.arr.length - 1] === comp
  }
}

export default new ActionBarManager()