phonegap plugin的创建方法
phonegap在android的创建方法见连接：http://www.phonegapcn.com/developers/get-started-13/get-started
phonegap插件指的就是能够在js中被调用的java程序
phonegap-plugin的创建步骤：
1、用java程序编写java类
2、在js文件中创建java类并调用java方法
3、在android项目的配置文件中添加插件声明
4、在html文件中调用js文件，实现插件功能
例子如下：
Html文件：
<!DOCTYPE HTML> <html>
<head>
<meta name="viewport" content="width=320; user-scalable=no" />
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>Simple Plugin Demo</title>
<script type="text/javascript" charset="utf-8" src="cordova-1.7.0.js"></script>
<script type="text/javascript" charset="utf-8" src="simplePlugin.js"></script>
<script type="text/javascript" charset="utf-8">
document.addEventListener('deviceready', function() {
var btn = document.getElementById("hello"); //获得Button的ID
var textbox = document.getElementById("name"); //获得输入框的ID
var output = document.getElementById("output"); //获得输出的ID
btn.addEventListener('click', function() { //为Button添加点击的事件监听器
var text = textbox.value; //得到输入框的的内容
//window.plugins是固定的; //simpleplugin是JavaScript中PhoneGap.addPlugin('simpleplugin', new SimplePlugin()); 的那个'simpleplugin'插件名称 //hello是JavaScript中 SimplePlugin.prototype.hello方法的名字"hello" window.plugins.simpleplugin.hello(text, function(result) { //成功时执行，传入的是Javascript中对象方法的参数 output.innerHTML = result;//把输入框的的内容的内容显示在输出div上
}, function(err) { //错误时执行
// failure callback
output.innerHTML = 'err: ' + err
+ ', Failed to invoke simple plugin';
});
});
}, true);
</script>
</head>
<body>
<p>
<label for="name">Enter Name: </label> <input type="text" name="name"
id="name" value="" />
<button id="hello">Say Hello</button>
</p>
<p>
<div id="output"></div>
</p>
</body>
</html>
JavaScript文件：
var SimplePlugin = function() {};
SimplePlugin.prototype.hello = function(name, successCallback, failureCallback) {
// exec 的分是： Success Callback, Failure Callback, Registered Plugin name：就是在XML文件配置的那个所对应的name,
// 'hello'是传入Java文件的execute方法中的参数String action
// name ( HTML 的)
return PhoneGap.exec(successCallback, failureCallback, 'SimplePlugin',
'hello', [ name ]);
};
// 这里是 PhoneGap Plugin 的，Plugin 的名有 Native Class 的名打了，就是我入的那些
PhoneGap.addConstructor(function() {
// Register the javascript plugin with PhoneGap
PhoneGap.addPlugin('simpleplugin', new SimplePlugin()); //simpleplugin是插件名称， new SimplePlugin()实例化的是本Javascript的类名 });
JAVA文件：
package org.apache.cordova.example;
import java.util.Date;
import org.apache.cordova.api.PluginResult.Status;
import org.json.JSONArray;
import org.json.JSONException;
import com.phonegap.api.Plugin;
import com.phonegap.api.PluginResult;
public class SimplePlugin extends Plugin {
public static String ACTION_HELLO = "hello";
@Override
public PluginResult execute(String action, JSONArray data, String callbackId) { //action和data是javascript传进来的参数 PluginResult pluginResult = null;
if (ACTION_HELLO.equals(action)) {
String name;
try {
name = data.getString(0);
String result = "Hello " + name + "! The time is "
+ (new Date()).toString();
pluginResult = new PluginResult(Status.OK, result);
return pluginResult;
} catch (JSONException e) {
pluginResult = new PluginResult(Status.JSON_EXCEPTION,
"missing argument name");
}
} else {
pluginResult = new PluginResult(Status.INVALID_ACTION,
"Allowed actions is hello");
}
return pluginResult;
}}
XML文件：
<plugins>
<plugin name="App" value="org.apache.cordova.App"/>
<plugin name="Geolocation" value="org.apache.cordova.GeoBroker"/>
<plugin name="Device" value="org.apache.cordova.Device"/>
<plugin name="Accelerometer" value="org.apache.cordova.AccelListener"/>
<plugin name="Compass" value="org.apache.cordova.CompassListener"/>
<plugin name="Media" value="org.apache.cordova.AudioHandler"/>
<plugin name="Camera" value="org.apache.cordova.CameraLauncher"/>
<plugin name="Contacts" value="org.apache.cordova.ContactManager"/>
<plugin name="File" value="org.apache.cordova.FileUtils"/>
<plugin name="NetworkStatus" value="org.apache.cordova.NetworkManager"/>
<plugin name="Notification" value="org.apache.cordova.Notification"/>
<plugin name="Storage" value="org.apache.cordova.Storage"/>
<plugin name="Temperature" value="org.apache.cordova.TempListener"/>
<plugin name="FileTransfer" value="org.apache.cordova.FileTransfer"/>
<plugin name="Capture" value="org.apache.cordova.Capture"/>
<plugin name="Battery" value="org.apache.cordova.BatteryListener"/>
<plugin name="SplashScreen" value="org.apache.cordova.SplashScreen"/>
<!--添加的插件-->
<plugin name="SimplePlugin" value="org.apache.cordova.example.SimplePlugin" /> //name是参见的名字 ;value是创建插件的全称类名</plugins>