Page({ onShareAppMessage() { return { title: '标题栏加载动画', path: 'packageAPI/pages/page/navigation-bar-loading/navigation-bar-loading' } }, showNavigationBarLoading() { wx.showNavigationBarLoading() }, hideNavigationBarLoading() { wx.hideNavigationBarLoading() }, onLoad() { this.setData({ theme: wx.getSystemInfoSync().theme || 'light' }) if (wx.onThemeChange) { wx.onThemeChange(({theme}) => { this.setData({theme}) }) } } })