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。
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