置顶高度

scrollTopId: '',//置顶id

city: "上海市",hotcityList: [{ cityCode: 110000,city: '北京市' },{ cityCode: 310000,city: '上海市' },{ cityCode: 440100,city: '广州市' },{ cityCode: 440300,city: '深圳市' },{ cityCode: 330100,city: '杭州市' },{ cityCode: 320100,city: '南京市' },{ cityCode: 420100,city: '武汉市' },{ cityCode: 410100,city: '郑州市' },{ cityCode: 120000,city: '天津市' },{ cityCode: 610100,city: '西安市' },{ cityCode: 510100,city: '成都市' },{ cityCode: 500000,city: '重庆市' }]

},onLoad: function () {

// 生命周期函数--监听页面加载

var searchLetter = city.searchLetter;

var cityList = city.cityList();

var sysInfo = wx.getSystemInfoSync();

var winHeight = sysInfo.windowHeight;

var itemH = winHeight / searchLetter.length;

var tempObj = [];

for (var i = 0; i < searchLetter.length; i++) {

var temp = {};

temp.name = searchLetter[i];

temp.tHeight = i * itemH;

temp.bHeight = (i + 1) * itemH;

tempObj.push(temp)

}

this.setData({

winHeight: winHeight,itemH: itemH,searchLetter: tempObj,cityList: cityList

})

},onReady: function () {

// 生命周期函数--监听页面初次渲染完成

},onShow: function () {

// 生命周期函数--监听页面显示

},onHide: function () {

// 生命周期函数--监听页面隐藏

},onUnload: function () {

// 生命周期函数--监听页面卸载

},onPullDownRefresh: function () {

// 页面相关事件处理函数--监听用户下拉动作

},onReachBottom: function () {

// 页面上拉触底事件的处理函数

},clickLetter: function (e) {

console.log(e.currentTarget.dataset.letter)

var showLetter = e.currentTarget.dataset.letter;

this.setData({

showLetter: showLetter,isShowLetter: true,scrollTopId: showLetter,})

var that = this;

setTimeout(function () {

that.setData({

isShowLetter: false

})

},1000)

},//选择城市

bindCity: function (e) {

console.log("bindCity")

this.setData({ city: e.currentTarget.dataset.city })

},//选择热门城市

bindHotCity: function (e) {

console.log("bindHotCity")

this.setData({

city: e.currentTarget.dataset.city

})

},//点击热门城市回到顶部

hotCity: function () {

this.setData({

scrollTop: 0,})

}

})