(1)设置tabBar:

uni.setTabberItem({});
wx.setTabberItem({});
indexnumber是tabBar 的哪一项,从左边算起,索引从0开始
textstring否tab 上按钮文字
iconPathstring否图片路径
selectedIconPathstring否选中时的图片路径
pagePathstring否页面绝对路径
visibleboolean否tab 是否显示
uni.setTabBarItem({
  index: 0,
  text: 'text',
  iconPath: '/path/to/iconPath',
  selectedIconPath: '/path/to/selectedIconPath',
  pagePath: 'pages/home/home'
})
wx.setTabBarItem({
  index: 0,
  text: 'text',
  iconPath: '/path/to/iconPath',
  selectedIconPath: '/path/to/selectedIconPath',
  pagePath: 'pages/home/home'
})

(2)显示tabBar:

uni.showTabber();
wx.showTabber();

(3)隐藏tabBar:

uni.hideTabber();
wx.hideTabber();

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