RoconMainActivity.java

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package com.ros.turtlebot.apps.rocon;

import java.net.URI;
import java.net.URISyntaxException;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.widget.TextView;
import android.widget.Toast;

public class RoconMainActivity extends RosBaseActivity {

        PowerManager.WakeLock wakeLock = null ;
        
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.nfc_reader);
        
            // TODO Auto-generated method stub
            PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
            wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "ROCON");
            wakeLock.acquire();
            
            txtInformation = (TextView) findViewById(R.id.INFORMATION);
            
            Intent intent = getIntent();
            nfc_table = intent.getStringExtra("table");
            nfc_weblink = intent.getStringExtra("weblink");
            nfc_masteruri = intent.getStringExtra("masteruri");
        }
        
        @SuppressLint("NewApi")
        public void startMasterChooser() {
                 URI uri;
         try {
           uri = new URI(nfc_masteruri);
         } catch (URISyntaxException e) {
           //throw new RosRuntimeException(e);
                 Toast.makeText(this, "Invalid MasterURI - " + nfc_masteruri, Toast.LENGTH_SHORT).show() ;
                 return ;
         }
         
         nodeMainExecutorService.setMasterUri(uri);
         
      // Run init() in a new thread as a convenience since it often requires
         // network access.
         new AsyncTask<Void, Void, Void>() {
           @Override
           protected Void doInBackground(Void... params) {
             init(nodeMainExecutorService);
             return null;
           }
         }.execute();
        }
        
        @Override
        protected void onDestroy() {
                // TODO Auto-generated method stub
                wakeLock.release();
                super.onDestroy();
        }
        
}