审查视图

html/index/city_f.html 4.3 KB
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<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
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    <title>选择城市</title>
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    <link rel="stylesheet" href="../../assets/css/reset.css">
    <link rel="stylesheet" type="text/css" href="../../assets/css/city.css">
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    <style>
        header {
            width: 100%;
            height: auto;
            font-size: 15px;
        }

        .index_header {
            line-height: 0.44rem;
            color: #424242;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.24rem 0.42rem;
        }

        .close_left {
            position: relative;
        }

        .close_left::before {
            position: absolute;
            left: -0.1rem;
            right: -0.1rem;
            top: -0.1rem;
            bottom: -0.1rem;
            content: '';
        }
    </style>
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</head>

<body>
<div class="city">
    <div class="city-wrapper city-wrapper-hook">
        <div class="scroller-hook">
            <div class="cities cities-hook"></div>
        </div>
        <div class="shortcut shortcut-hook"></div>
    </div>
</div>

<script src="../../assets/js/bscroll.min.js"></script>
<script src="../../assets/js/city.js"></script>
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<script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
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<script>
    var cityWrapper = document.querySelector('.city-wrapper-hook');
    var cityScroller = document.querySelector('.scroller-hook');
    var cities = document.querySelector('.cities-hook');
    var shortcut = document.querySelector('.shortcut-hook');
    var scroll;
    var shortcutList = [];
    var anchorMap = {};
    function initCities() {
        var y = 0;
        var titleHeight = 28;
        var itemHeight = 44;

        var lists = '';
        var en = '<ul>';
        cityData.forEach(function (group) {
            var name = group.name;
            lists += '<div class="title">'+name+'</div>';
            lists += '<ul>';
            group.cities.forEach(function(g) {
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                lists += '<li class="item"  data-name="'+ g.name +'" data-id="'+ g.cityid +'"  onclick="getCityName(event)"><span class="border-1px name">'+ g.name +'</span></li>';
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            });
            lists += '</ul>';
            var name = group.name.substr(0, 1);
            en += '<li data-anchor="'+name+'" class="item">'+name+'</li>';
            var len = group.cities.length;
            anchorMap[name] = y;
            y -= titleHeight + len * itemHeight;
        });
        en += '</ul>';

        cities.innerHTML = lists;

        shortcut.innerHTML = en;
        shortcut.style.top = (cityWrapper.clientHeight - shortcut.clientHeight) / 2 + 'px';

        scroll = new window.BScroll(cityWrapper, {
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            probeType: 3,
            click: true
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        });

        // scroll.on('scroll', function (pos) {
        //   console.log(Math.round(pos.y));
        // });

        scroll.scrollTo(0, 0);
    }
    //bind Event
    function bindEvent() {
        var touch = {};
        var firstTouch;

        shortcut.addEventListener('touchstart', function (e) {
            var anchor = e.target.getAttribute('data-anchor');
            firstTouch = e.touches[0];
            touch.y1 = firstTouch.pageY;
            touch.anchor = anchor;
            scrollTo(anchor);
        });

        shortcut.addEventListener('touchmove', function (e) {
            firstTouch = e.touches[0];
            touch.y2 = firstTouch.pageY;
            var anchorHeight = 16;
            var delta = (touch.y2 - touch.y1) / anchorHeight | 0;

            var anchor = shortcutList[shortcutList.indexOf(touch.anchor) + delta];

            scrollTo(anchor);
            e.preventDefault();
            e.stopPropagation();
        });

        function scrollTo(anchor) {
            var maxScrollY = cityWrapper.clientHeight - cityScroller.clientHeight;

            var y = Math.min(0, Math.max(maxScrollY, anchorMap[anchor]));

            if (typeof y !== 'undefined') {
                scroll.scrollTo(0, y);
            }
        }
    }
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    function getCityName(event){
        var cityName = event.target.innerText;
        localStorage.setItem('cityName',cityName)
        window.history.back()
    }
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    initCities();
    bindEvent();

</script>
</body>
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</html>