微信小程序开发之自定义tabBar的实现

globalData: {
  userInfo: null,
  tabBar: {
   "backgroundColor": "#ffffff",
   "color": "#979795",
   "selectedColor": "#1c1c1b",
   "list": [
    {
     "pagePath": "/page/index/index",
     "iconPath": "icon/icon_home.png",
     "selectedIconPath": "icon/icon_home_HL.png",
     "text": "首页"
    },
    {
     "pagePath": "/page/myRelease/index",
     "iconPath": "icon/icon_release.png",
     "isSpecial": true,
     "text": "发布"
    },
    {
     "pagePath": "/page/mine/index",
     "iconPath": "icon/icon_mine.png",
     "selectedIconPath": "icon/icon_mine_HL.png",
     "text": "我的"
    }
   ]
  }
 }

editTabbar: function() {
  let tabbar = this.globalData.tabBar;
  let currentPages = getCurrentPages();
  let _this = currentPages[currentPages.length - 1];
  let pagePath = _this.route;
  (pagePath.indexOf('/') != 0) && (pagePath = '/' + pagePath);
  for (let i in tabbar.list) {
   tabbar.list[i].selected = false;
   (tabbar.list[i].pagePath == pagePath) && (tabbar.list[i].selected = true);
  }
  _this.setData({
   tabbar: tabbar
  });
 },

"usingComponents": {

"tabbar": "../../tabbarComponent/tabbar"

}