Cordova是一个用于构建跨平台移动应用程序的开发框架,它允许开发者使用HTML、CSS和JavaScript编写应用程序,然后将其封装成原生应用,以便在iOS、Android等平台上运行,以下是一个简单的Cordova源码示例:
1、确保已经安装了Node.js和npm,通过命令行安装Cordova:
npm install g cordova
2、创建一个新的Cordova项目:
cordova create myApp com.example.myapp MyApp
这将创建一个名为myApp
的新目录,其中包含Cordova项目的基本信息。com.example.myapp
是应用程序的包名,MyApp
是应用程序的名称。
3、进入项目目录:
cd myApp
4、添加平台支持(以Android为例):
cordova platform add android
5、构建应用程序:
cordova build android
6、运行应用程序(需要连接设备或启动模拟器):
cordova run android
7、在www
目录下,你可以找到应用程序的主要代码。index.html
文件可能如下所示:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf8" />
<meta name="formatdetection" content="telephone=no" />
<meta name="viewport" content="userscalable=no, initialscale=1, maximumscale=1, minimumscale=1, width=devicewidth" />
<link rel="stylesheet" type="text/css" href="css/index.css" />
<title>Hello World</title>
</head>
<body>
<div class="app">
<h1>Apache Cordova</h1>
<div id="deviceready" class="blink">
<p class="event listening">Connecting to Device</p>
<p class="event received">Device is Ready</p>
</div>
</div>
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript">
app.initialize();
</script>
</body>
</html>
8、在js
目录下,你可以找到应用程序的主要JavaScript代码。index.js
文件可能如下所示:
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');
},
// 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);
}
};
9、在config.xml
文件中,你可以配置应用程序的一些基本属性,如图标、版本号等。
<?xml version='1.0' encoding='utf8'?>
<widget id="com.example.myapp" version="0.0.1" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
<name>MyApp</name>
<description>An example Cordova application</description>
<author email="dev@example.com" href="http://example.com">Your Name</author>
<content src="index.html" />
<access origin="*" />
<preference name="Fullscreen" value="true" />
<preference name="Orientation" value="portrait" />
<preference name="targetdevice" value="universal" />
<preference name="webviewbounce" value="false" />
<preference name="prerenderedbrowser" value="true" />
<preference name="stayinwebview" value="false" />
<preference name="iosPersistentFileLocation" value="Library" />
<preference name="androidminSdkVersion" value="14" />
<preference name="androidtargetSdkVersion" value="28" />
<preference name="androidinstallLocation" value="auto" />
<platform name="android">
<icon src="res/android/ldpi.png" density="default" />
<icon src="res/android/mdpi.png" density="low" />
<icon src="res/android/hdpi.png" density="high" />
<icon src="res/android/xhdpi.png" density="xhigh" />
<icon src="res/android/xxhdpi.png" density="xxhigh" />
<icon src="res/android/xxxhdpi.png" density="xxxhigh" />
</platform>
<platform name="ios">
<icon src="res/ios/icon360.png" width="180" height="180" />
<icon src="res/ios/icon60@2x.png" width="60" height="60" />
<icon src="res/ios/icon60@3x.png" width="60" height="60" />
<icon src="res/ios/icon76.png" width="76" height="76" />
<icon src="res/ios/icon120.png" width="120" height="120" />
<icon src="res/ios/icon152.png" width="152" height="152" />
<icon src="res/ios/icon167.png" width="167" height="167" />
<icon src="res/ios/icon180.png" width="180" height="180" />
<icon src="res/ios/icon29ipad.png" width="29" height="29" />
<icon src="res/ios/icon58ipad.png" width="58" height="58" />
<icon src="res/ios/icon80ipad.png" width="80" height="80" />
<icon src="res/ios/icon87ipad.png" width="87" height="87" />
<icon src="res/ios/icon100ipad.png" width="100" height="100" />
<icon src="res/ios/icon120ipad.png" width="120" height="120" />
<icon src="res/ios/icon152ipad.png" width="152" height="152" />
<icon src="res/ios/icon167ipad.png" width="167" height="167" />
<icon src="res/ios/icon180ipad.png" width="180" height="180" />
</platform>
<splash src="res/screen/android/screenhdpilandscape.png" platform="android" width="800" height="480" density="hdpi"/>
<splash src="res/screen/android/screenhdpiportrait.png" platform="android" width="480" height="800" density="hdpi"/>
<splash src="res/screen/android/screenmdpilandscape.png" platform="android" width="470" height="320" density="mdpi"/>
<splash src="res/screen/android/screenmdpiportrait.png" platform="android" width="320" height="470" density="mdpi"/>
<splash src="res/screen/android/screenxhdpilandscape.png" platform="android" width="1146" height="640" density="xhdpi"/>
<splash src="res/screen/android/screenxhdpiportrait.png" platform="android" width="640" height="1146" density="xhdpi"/>
<splash src="res/screen/ios/Default568h@2x~iphone.png" platform="ios" width="640" height="1136"/>
<splash src="res/screen/ios/Default667h.png" platform="ios" width="750" height="1334"/>
<splash src="res/screen/ios/Default736h.png" platform="ios" width="1242" height="2208"/>
<splash src="res/screen/ios/DefaultLandscape736h.png" platform="ios" width="2208" height="1242"/>
<splash src="res/screen/ios/DefaultLandscape@2x~iphone.png" platform="ios" width="2048" height="1496"/>
<splash src="res/screen/ios/DefaultPortrait@2x~iphone.png" platform="ios" width="1496" height="2048"/>
<splash src="res/screen/ios/Default@2x~iphone.png" platform="ios" width="640" height="960"/>
<splash src="res/screen/ios/Default~iphone.png" platform="ios" width="320" height="480"/>
</platform>
这个示例展示了一个简单的Cordova应用程序的基本结构和代码,你可以根据自己的需求修改这些文件,以实现更复杂的功能。
以上内容就是解答有关cordova源码的详细内容了,我相信这篇文章可以为您解决一些疑惑,有任何问题欢迎留言反馈,谢谢阅读。