MasterBrowser.java

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/*
 * Copyright (C) 2013 Yujin Robot.
 *
 * Licensed 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.
 */
package com.github.rosjava.android_extras.ros_master_browser;

import java.io.IOException;
import java.lang.Thread;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.view.LayoutInflater;
import android.widget.ListView;
import android.widget.ArrayAdapter;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Toast;
import android.widget.TextView;
import android.text.method.ScrollingMovementMethod;
import com.github.rosjava.zeroconf_jmdns_suite.jmdns.DiscoveredService;
import com.github.rosjava.zeroconf_jmdns_suite.jmdns.Zeroconf;
import com.github.rosjava.zeroconf_jmdns_suite.jmdns.ZeroconfDiscoveryHandler;
import com.github.rosjava.android_extras.ros_master_browser.R;
import com.github.rosjava.android_extras.ros_master_browser.DiscoveryAdapter;
import com.github.rosjava.android_extras.ros_master_browser.DiscoveryHandler;
import com.github.rosjava.android_extras.ros_master_browser.DiscoverySetup;
import com.github.rosjava.android_extras.ros_master_browser.Logger;

// adb logcat System.out:I *:S
// adb logcat zeroconf:I *:S

public class MasterBrowser extends Activity {
        
        /********************
         * Variables
         *******************/
        private Zeroconf zeroconf;
        private Logger logger;
        private TextView tv;
        private ListView lv;
        private ArrayList<DiscoveredService> discovered_services;
    private DiscoveryAdapter discovery_adapter;
        private DiscoveryHandler discovery_handler;
        
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        logger = new Logger();
        android.util.Log.i("zeroconf","*********** Zeroconf Create **************");
        discovered_services = new ArrayList<DiscoveredService>();
        setContentView(R.layout.main);
        lv = (ListView)findViewById(R.id.discovered_services_view);
        discovery_adapter = new DiscoveryAdapter(this, discovered_services);
        lv.setAdapter(discovery_adapter);
        tv = (TextView)findViewById(R.id.mytextview);
        tv.setMovementMethod(new ScrollingMovementMethod());
        tv.setText("");

                zeroconf = new Zeroconf(logger);
                discovery_handler = new DiscoveryHandler(tv, discovery_adapter, discovered_services);
                zeroconf.setDefaultDiscoveryCallback(discovery_handler);

                new DiscoverySetup(this).execute(zeroconf);
    }
    
    @Override
    public void onPause() {
        logger.println("*********** Zeroconf Pause **************");
                super.onPause();
    }

    @Override
    public void onStop() {
        logger.println("*********** Zeroconf Stop **************");
                super.onStop();
    }
    
    
    @Override
    public void onDestroy() {
        logger.println("*********** Zeroconf Destroy **************");
        zeroconf.removeListener("_ros-master._tcp","local");
            zeroconf.removeListener("_ros-master._udp","local");
            try {
                zeroconf.shutdown();
        } catch (IOException e) {
                e.printStackTrace();
        }
                super.onDestroy();
    }
}