移动混合开发之android文件管理demo

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

框架采用cordova，android编译环境为android studio.系统为mac，cordova 环境搭建参考网址：http://cordova.apache.org/docs/en/5.0.0/cordova/plugins/pluginapis.html#Plugin%20APIs

1.index.html

<!DOCTYPE html>

<html>
<head>

<meta http-equiv="Content-Security-Policy"
content="default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *">
<meta name="format-detection" content="telephone=no">
<meta name="msapplication-tap-highlight" content="no">
<meta charset="utf-8">
<meta name="viewport"
content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width">
<link rel="stylesheet" type="text/css" href="css/index.css"><br>

<script type="text/javascript" src="js/jquery-2.2.4.min.js"></script>
<script type="text/javascript" src="js/iscroll-lite.js"></script>
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<title>Hello World</title>
</head>
<body>
<div id="log"></div>
<div class="head">
浏览器
</div>

<div class="content">
<div class="nav">
<div id="current-dir"></div>
<div id="upper">上一级</div>
</div>
<div class="list" id="file-list">
<ul >
<li class="t">
<div class="file-icon"></div>
<div class="file-name">This is file name1</div>
</li>
</ul>
</div>
</div>
</body>
</html>

2.index.js

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
var app = {
// Application Constructor
initialize: function () {
this.bindEvents();
},
// Bind Event Listeners
//
// Bind any events that are required on startup. Common events are:
// 'load', 'deviceready', 'offline', and 'online'.
bindEvents: function () {
document.addEventListener('deviceready', this.onDeviceReady, false);
},
// deviceready Event Handler
//
// The scope of 'this' is the event. In order to call the 'receivedEvent'
// function, we must explicitly call 'app.receivedEvent(...);'
onDeviceReady: function () {
// app.receivedEvent('deviceready');
$(function () {
myDeviceReady();
});
},
// Update DOM on a Received Event
receivedEvent: function (id) {
var parentElement = document.getElementById(id);
var listeningElement = parentElement.querySelector('.listening');
var receivedElement = parentElement.querySelector('.received');
listeningElement.setAttribute('style', 'display:none;');
receivedElement.setAttribute('style', 'display:block;'); console.log('Received Event: ' + id);
}
};app.initialize();
var myscroll = null;function myDeviceReady() {
var size = $(window).width() / 18
//设计字体宽度
$('html').css('font-size', size);
myscroll = new IScroll("#file-list");
//打开文件夹
window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, function (entry) {
openEntry(entry);
}, function () {
alert('fail');
});
}/*<li>
<div class="file-icon"></div>
<div class="file-name">This is file name1</div>
</li>*/function openEntry(entry) {
//使用克隆方式时,重新更新页面不能用,$('#file-list ul ).html(");
$('#file-list ul li.item').remove();
$('#current-dir').text("当前目录:" + entry.name);
$('#upper').bindtouch(
function () {
entry.getParent(function (entry) {
openEntry(entry);
}, function () {
alert('get Parent Error');
});
}
); entry.createReader().readEntries(function (entries) {
sortEntrise(entries);
for (var i = 0; i < entries.length; i++) {
var entry = entries[i];
//采用克隆方式,比较方便
var jObjectLi = $('.t').clone().removeClass('t').addClass('item');
jObjectLi.find('.file-name').text(entry.name);
jObjectLi.data('entry', entry);
$('.list ul').append(jObjectLi);
jObjectLi.bindtouch(function () {
var liEntry = $(this).data('entry');
if (!liEntry.isFile) {
openEntry(liEntry);
}
});
}
myscroll.refresh();
},
function (error) {
alert(error);
});
}//将文件和文件夹分离
function sortEntrise(entries) {
entries.sort(function (a, b) {
if (a.isFile && !b.isFile) {
return 1;
} else if (!a.isFile && b.isFile) {
return -1;
} else {
return a.name < b.name;
}
})
}//扩展为jQuery自定义函数$.fn.bindtouch = function (cb) {
attachMyEvent($(this), cb);
};var timeID = null;function attachMyEvent(sr, cb) {
//click事件反应时间为300毫秒,因此取消click采用手动
//手指按下,若手指移动,则触发取消
sr.unbind();
clearTimeout(timeID);
var point_one = {};
var point_two = {};
sr.on('touchstart', function (event) {
var me = $(this)
me.data('touch', true);
var touch = event.originalEvent.targetTouches[0];
point_one.x = touch.pageX;
point_one.y = touch.pageY;
//设计timeID如果点下时滑动就不用触发
timeID = setTimeout(function () {
me.addClass('touchInside');
}, 100);
}); sr.on('touchend', function () {
clearTimeout(timeID);
var me = $(this);
if (me.data('touch') == true) {
//改变回调函数的this指针为sr
//触发回调函数
cb.bind(this)();
}
me.removeClass('touchInside')
me.data('touch', false);
}); sr.on('touchmove', function (event) {
var me = $(this);
var touch = event.originalEvent.targetTouches[0];
point_two.x = touch.pageX;
point_two.y = touch.pageY;
if (me.data('touch')) {
//华为手机测试,没有滑动也会触发touchmove,所以加测滑动距离,来判断是否滑动
var distane = getPointsDistance(point_one, point_two);
console.log(distane);
$('#log').text(distane);
if (distane > 4) {
me.data('touch', false);
clearTimeout(timeID);
me.removeClass('touchInside')
}
} // alert(2);
});
}
//计算两点之间距离
function getPointsDistance(p1, p2) {
var xDistance = Math.abs(p1.x - p2.x);
var yDistance = Math.abs(p1.y - p2.y);
var distance = Math.sqrt(xDistance * xDistance + yDistance * yDistance);
return distance;
}