Page({
  data: {
    statusBarHeight: 44
  },

  onLoad: function () {
    var app = getApp()
    this.setData({ statusBarHeight: app.globalData.statusBarHeight })
  },

  onBack: function () {
    wx.navigateBack({
      fail: function () {
        wx.switchTab({ url: '/pages/profile/profile' })
      }
    })
  }
})