h5页面使用js实现保存当前图片到手机相册

时间：2023-03-08 16:15:28

很可惜，这个鬼东西微信内置浏览器不适用

页面：

<!doctype html>

<html>

<head>

    <meta charset="UTF-8">

    <meta content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no" name="viewport">

    <title>节日贺卡</title>

    <link rel="stylesheet" href="../css/common.css" type="text/css" media="screen"/>

    <link rel="stylesheet" href="../css/main.css" type="text/css" media="screen"/>

    <script src="../js/init.js"></script>

    <script src="../js/jquery-3.2.1.min.js"></script>

    <script src="../js/base.js"></script>

    <script src="../js/wxshare.js" ></script>

    <script src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>

<link rel="icon" type="image/png" href="../img/icon.png">

</head>

<body class="bodybgfff">

<!-- 头部start -->

<header class="trx_header clearfix">

    <h1>节日贺卡</h1>

    <div class="fl trx_return"><a href="../page/personalCenter.html"></a></div>

</header>

<!-- 头部搜索end -->

<!-- 海报start -->

<input type="hidden" id="posterType" value="02"/>

<div class="my_haibao">

    <ul class="haibao-list" id="my_poster_id">

    </ul>

</div>

<img style="display:none" class="qdb_nocotent no_search_data" src="../img/search_no.png" alt="" >

<p style="display:none" class="search_not_text no_search_data">暂时木有海报哦</p>

<!-- 海报end -->

<!-- 弹出层end -->

<div class="mark" ></div>

<div class="haibao-show">

    <span class="btn-close-haibao"></span>

    <img src="img/app-down-bg.jpg" alt="" id="picurl"/>

    <p id="successHint" style="display:none">图片已保存到相册，可分享给好友</p>

    <p id="failHint" style="display:none">图片保存失败</p>

    <a href="#" onclick="javascript:savePic();">保存到相册</a>

</div>

<!-- 分享二维码end -->

<script src="../js/model/myPosterList.js"></script>

</body>

</html>

js:

/**

 * Created by wwj on 2019/03/11.

 */

$(document).ready(function(){

    pageShow = 9;

    nowPage = 1;

    loadDataId="my_poster_id";

    /*var url = window.basePath + "/h5/front/poster/toPoster";

    $.ajax({

        url: url,

        type: 'GET',

        dataType: 'json',

        data: {},

        success: function (rest) {

            $("#salesmanUuid").val(rest.data.salesmanUuid);

        }

    })*/

    pageCallBack()

});

function pageCallBack(){

    loadPosterContent();

}

function loadPosterContent(){

    var storeNo = getSessionStoreNo();

    var posterType = $("#posterType").val();

    var url = window.basePath + "/h5/front/poster/ajaxSearchPoster";

    $.ajax({

        url: url,

        type: 'POST',

        dataType: 'json',

        data: {currentPage: nowPage,pageShow:pageShow,storeNo:storeNo,posterType:posterType},

        success: function (rest) {

            console.log(rest)

            if(rest.result){

                appendPosterResult(rest);

            }else{

                $(".no_search_data").show();

            }

            console.log('start')

        }

    })

}

//拼接加载出来的产品

function appendPosterResult(data){

    var results = data.results;

    if(results!=null&&results.length>0){

        var appendHtml = "";

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

            var poster = results[i];

            //appendHtml += '<li><a href="javascript:void(0);" onclick="toPosterPage(\''+poster.uuid+'\',\''+poster.posterTitle+'\')"><img src="'+poster.posterImgUrl+'" alt=""/><p>'+poster.posterTitle+'</p></a></li>';

            appendHtml +='<li>'

                        +'<a href="#"><img src="'+poster.posterImgUrl+'" alt=""/><p>'+poster.posterTitle+'</p></a>'

                       +'</li>';

        }

        $("#my_poster_id").append(appendHtml);

        $(".no_search_data").hide();

    }else{

        if(nowPage==1){

            totalPage = data.totalPage;

            $(".no_search_data").show();

        }

    }

    nowPage++;

    initPreviewJs();

}

//初始化图片预览效果js

function initPreviewJs(){

       $(".haibao-list li img").click(function(){

            var imgSrc = $(this)[0].src;

            $(".mark").fadeIn();

            $(".haibao-show").fadeIn().children("img").attr("src",imgSrc);

        })

    $(".btn-close-haibao,.mark").click(function(){

            $(".mark").fadeOut();

            $(".haibao-show").fadeOut();

            $("#successHint").hide();

            $("#failHint").hide();

        })

}

//保存到相册

function savePic(){

    var picurl= $("#picurl").attr("src");

    //alert(picurl);

    savePicture(picurl);

}

var triggerEvent = "touchstart";

function savePicture(Url){

    var blob=new Blob([''], {type:'application/octet-stream'});

    var url = URL.createObjectURL(blob);

    var a = document.createElement('a');

    a.href = Url;

    a.download = Url.replace(/(.*\/)*([^.]+.*)/ig,"$2").split("?")[0];

    var e = document.createEvent('MouseEvents');

    e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);

    a.dispatchEvent(e);

    URL.revokeObjectURL(url);

}

参考博客：https://blog.****.net/rentian1/article/details/84988590

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