var app = getApp()
Page({
  data: {
    // 页面配置  
    winWidth: 0,
    winHeight: 0,
    // tab切换 
    currentTab: 0,
  },
  onLoad: function() {
    var that = this;
    // 获取系统信息 
    wx.getSystemInfo({
      success: function(res) {
        that.setData({
          winWidth: res.windowWidth,
          winHeight: res.windowHeight
        });
      }
    });
  },
  // 滑动切换tab 
  bindChange: function(e) {
    var that = this;
    that.setData({
      currentTab: e.detail.current
    });
  },
  // 点击tab切换 
  swichNav: function(e) {
    var that = this;
    if (this.data.currentTab === e.target.dataset.current) {
      return false;
    } else {
      that.setData({
        currentTab: e.target.dataset.current
      })
    }
  }
})