JS 实现显示和隐藏div(以百度地图为例)

主要参考的文章:https://my.oschina.net/xsh1208/blog/215811,https://zhidao.baidu.com/question/568774688.html

隐藏和显示div的方式有两种:

方式1:隐藏后仍占有页面空间,显示空白
div的visibility可以控制div的显示和隐藏,但是隐藏后页面显示空白.
style="visibility: none;"
document.getElementById("typediv1").style.visibility="hidden";//隐藏
document.getElementById("typediv1").style.visibility="visible";//显示

方式2:隐藏后释放占用的页面空间
通过设置display属性可以使div隐藏后释放占用的页面空间.
style="display: none;"
document.getElementById("typediv1").style.display="none";//隐藏
document.getElementById("typediv1").style.display="";//显示

注意:
使用第二方式更人性化,但是,用div.style.display="none"隐藏会引起,div里面的东西休眠,里面的事件就不响应了。

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
        body, html {width: 100%;height: 100%;margin:0;font-family:"微软雅黑";}
        #allmap{width:100%;height:80%;}
        p{margin-left:5px; font-size:14px;}
    </style>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=您的密钥"></script>
    <script type="text/javascript" src="js/jquery-2.1.3.min.js"></script>    <!-- 引入jQuery -->
    <title>JS 实现显示和隐藏div(以百度地图为例)</title>
</head>
<body>
    <div id="allmap"></div>
    <p>点击地图右上角的图标,实现显示或隐藏div内容</p>
</body>
</html>
<script type="text/javascript">
// 百度地图初始化
var map = new BMap.Map("allmap");
map.centerAndZoom(new BMap.Point(116.3964,39.9093), 15);
map.enableScrollWheelZoom();

//添加自定义的覆盖物
function ZoomControl_Center(){
    this.defaultAnchor = BMAP_ANCHOR_TOP_RIGHT;
    this.defaultOffset = new BMap.Size(20, 10);
}
ZoomControl_Center.prototype = new BMap.Control();
ZoomControl_Center.prototype.initialize = function(map){
    var div = document.createElement("div");            
    div.innerHTML = "<img src='images/profle.png' width='32px' height='32px'>";
    div.style.cursor = "pointer";
    
    div.onclick = function(){        //添加响应事件
        var x = document.getElementById("userInfoDiv");
        //方式1,
/*         if(x.style.display=="none"){
            x.style.display="block";                  //显示
        }else{
            x.style.display="none";                   //隐藏
        } */
        
        //方式2,原生简写(三元运算)
        //x.style.visibility=x.style.visibility=="hidden"?"visible":"hidden";
        
        //方式3,jquery
        if($("#userInfoDiv").css("display")=='none'){//如果是隐藏的
            $("#userInfoDiv").css("display","block");//display属性设置为block(显示)
        }else{
            $("#userInfoDiv").css("display","none");
        }
    }
    map.getContainer().appendChild(div);
    return div;
};
map.addControl(new ZoomControl_Center());

openUserInfoDiv();

//覆盖层显示内容
function openUserInfoDiv(){
    var newDiv = document.createElement("div");
    newDiv.id = "userInfoDiv";
    newDiv.style.position = "absolute";
    newDiv.style.zIndex = "9999";
    
    newDiv.style.width ="150px";
     newDiv.style.top = "50px";
    newDiv.style.right = "0px";

    newDiv.style.background = "#ffffff";
    newDiv.style.opacity = "0.9";
    newDiv.style.padding = "5px";
    newDiv.style.display="none";          //隐藏
    //newDiv.style.visibility="hidden";   //隐藏
    
    var routeName = "测试路线";
    var empName = "张三";
    var taskTimeStart = "2016-12-19 19:00:00";

    var HTMLstr = "<div style='background:#1868bd;color:#fff; '>"
        +"<span style='margin:10px;padding:0.2em 0;line-height:1.5;font-size:15px'><b>"+routeName+"</b></span></div>"
        +"<ul style='margin:0px;padding:15px;color:#1868bd;line-height:1.2;'>"
        +"<li><font size='1.5'><b>执行人员:"+empName+"</b></font></li>"
        +"<li><font size='1.5'><b>执行时间:</b></font></br><font size='1' color='#000'>"+taskTimeStart+"</font></li>"
        +"</ul>";
    newDiv.innerHTML = HTMLstr;
    
    document.getElementById("allmap").appendChild(newDiv);
}
</script>

简单介绍:

1.百度地图初始化,注意添加百度地图的秘钥key;

2.添加自定义的覆盖物,用于点击事件;

3.添加覆盖层,用于显示内容;

4.添加覆盖物的响应事件

 

posted on 2016-12-23 16:04  anyuan9  阅读(27191)  评论(0编辑  收藏  举报

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