Cordova调用Activity

GhostWolf

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Cordova

phonegap Cordova android Activity

首先需要编写一个CallActivityPlugin插件,专门调用Activity

package com.example.plugin;

import org.apache.cordova.api.CallbackContext;
import org.apache.cordova.api.CordovaPlugin;
import org.apache.cordova.api.PluginResult;
import org.json.JSONArray;
import org.json.JSONException;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;

public class CallActivityPlugin extends CordovaPlugin {
	public static final String ACTION = "call";
	
	@Override
    public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
		if (action.equals(ACTION)) {
            try {  
            	//下面两句最关键，利用intent启动新的Activity
Intent intent = new Intent().setClass(cordova.getActivity(), Class.forName(args.getString(0)));
                this.cordova.startActivityForResult(this, intent, 1);
                //下面三句为cordova插件回调页面的逻辑代码
                PluginResult mPlugin = new PluginResult(PluginResult.Status.NO_RESULT);
        		mPlugin.setKeepCallback(true);

                callbackContext.sendPluginResult(mPlugin);
                callbackContext.success("success"); 
        		
            } catch (Exception e) {  
            	e.printStackTrace();
            	return false;
            }
		}

        return true;
    }
	//onActivityResult为第二个Activity执行完后的回调接收方法
	@Override
	public void onActivityResult(int requestCode, int resultCode, Intent intent){  
    	switch (resultCode) { //resultCode为回传的标记，我在第二个Activity中回传的是RESULT_OK
			case Activity.RESULT_OK:
				Bundle b=intent.getExtras();  //data为第二个Activity中回传的Intent
				String str=b.getString("change01");//str即为回传的值
                break;
			default:
	           break;
		}
    } 
}

然后配置CallActivityPlugin插件res/xml/config.xml

<plugin name="CallActivityPlugin" value="com.example.plugin.CallActivityPlugin"/>

接着利用js调用插件（callActivity.js）

window.callActivityPlugin = function(str,callback) {
	cordova.exec(callback, pluginFailed, "CallActivityPlugin", "call", [ str ]);
};

var pluginFailed = function(message) {
	alert("failed>>" + message);
}

$(function() {
	init();
});

var init = function() {
	console.log("phonegap init!!");
	document.addEventListener("deviceready", onDeviceReady, true);
}

var onDeviceReady = function() {
	
	console.log("deviceready event fired");

	window.callActivityPlugin("com.example.activity.MyActivity" , function(echoValue) {
		console.log("callActivityPlugin echo>>");
	});
};

最后html页面加载（相对简单）

<!DOCTYPE html>
<html>
  <head>
    <title>Device Properties Example</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
	<script type="text/javascript" charset="utf-8" src="../js/jquery-1.8.3.js"></script>
	<script type="text/javascript" charset="utf-8" src="../js/cordova-2.3.0.js"></script>
	<script type="text/javascript" charset="UTF-8" src="../js/callActivity.js"></script>
  </head>
  <body>
    <p id="callActivityPlugin">callActivityPlugin</p>
    <a href="../index.html">返回</a>
  </body>
</html>

新的Activity代码（相对简单）

package com.example.activity;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.example.ask.R;

public class MyActivity extends Activity {
	private Button btn;

	private int flag = 0;

	private Intent intentNew = null;

	private Context context = this;

	@Override
	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.my_activity_main);

		intentNew = this.getIntent();

		btn = (Button) findViewById(R.id.button1);

		btn.setOnClickListener(new OnClickListener() {

			public void onClick(View v) {
				Intent mIntent = new Intent();  
		        mIntent.putExtra("change01", "1000");  
		        mIntent.putExtra("change02", "2000");  
		        // 设置结果，并进行传送  
		        setResult(RESULT_OK, mIntent);
				finish();
			}
		});

	}
}

参考文章：https://github.com/phonegap/phonegap-plugins/blob/master/Android/EmailComposerWithAttachments/EmailComposer.java

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