combination/miniprogram/packageAPI/pages/api/share-button/share-button.js

Page({
  onShareAppMessage() {
    return {
      title: '转发按钮',
      path: 'packageAPI/pages/api/share-button/share-button'
    }
  },
  handleTapShareButton() {
    if (!((typeof wx.canIUse === 'function') && wx.canIUse('button.open-type.share'))) {
      wx.showModal({
        title: '当前版本不支持转发按钮',
        content: '请升级至最新版本微信客户端',
        showCancel: false
      })
    }
  },
  onLoad() {
    this.setData({
      theme: wx.getSystemInfoSync().theme || 'light'
    })

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