my.switchTab

my.switchTab({
  url: 'page/home/index'
});

my.switchTab({
  url: 'page/user/index',
  success() {
    console.log('Switched to user tab');
  },
  fail(err) {
    console.error('Failed to switch tab:', err);
  }
});

{
  "tabBar": {
    "textColor": "#666666",
    "selectedColor": "#108ee9",
    "backgroundColor": "#FFFFFF",
    "items": [
      {
        "pagePath": "page/home/index",
        "name": "Home",
        "icon": "images/home.png",
        "activeIcon": "images/home-active.png"
      },
      {
        "pagePath": "page/user/index",
        "name": "User",
        "icon": "images/user.png",
        "activeIcon": "images/user-active.png"
      }
    ]
  }
}