combination/miniprogram/packageAPI/pages/page/set-navigation-bar-title/set-navigation-bar-title.js

Page({
  onShareAppMessage() {
    return {
      title: '设置页面标题',
      path: 'packageAPI/pages/page/set-navigation-bar-title/set-navigation-bar-title'
    }
  },

  setNaivgationBarTitle(e) {
    const title = e.detail.value.title
    console.log(title)
    wx.setNavigationBarTitle({
      title,
      success() {
        console.log('setNavigationBarTitle success')
      },
      fail(err) {
        console.log('setNavigationBarTitle fail, err is', err)
      }
    })

    return false
  },
  onLoad() {
    this.setData({
      theme: wx.getSystemInfoSync().theme || 'light'
    })

    if (wx.onThemeChange) {
      wx.onThemeChange(({theme}) => {
        this.setData({theme})
      })
    }
  }
})