PairingActivity.java :  » Client » locastmobile » edu » mit » mel » locast » mobile » Android Open Source

package edu.mit.mel.locast.mobile;
/*
 * Copyright (C) 2010 MIT Mobile Experience Lab
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentResolver;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.TextView.OnEditorActionListener;

import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;

import edu.mit.mel.locast.mobile.data.Cast;
import edu.mit.mel.locast.mobile.data.Comment;
import edu.mit.mel.locast.mobile.data.Project;
import edu.mit.mel.locast.mobile.data.Tag;
import edu.mit.mel.locast.mobile.net.AndroidNetworkClient;

public class PairingActivity extends Activity implements OnClickListener, OnEditorActionListener {

  private AndroidNetworkClient nc;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    this.nc = AndroidNetworkClient.getInstance(this);

    setContentView(R.layout.pairing);

    findViewById(R.id.ScanQRCodeButton).setOnClickListener(this);
    findViewById(R.id.PairingButton).setOnClickListener(this);
    ((EditText)findViewById(R.id.PairingText)).setOnEditorActionListener(this);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
        final MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.homescreen_menu, menu);
        if (MainActivity.DEBUG){
          menu.findItem(R.id.reset).setVisible(true);
        }
        return true;
    }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
      case R.id.settingsMenuItem: {
        final Intent intent = new Intent(this, SettingsActivity.class);
        startActivity(intent);
        break;
      }

      case R.id.reset: {
        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle(R.string.app_name);
        builder.setMessage("This will erase all the Locast information stored on the device, aside from the video files themselves. Do you want to reset Locast?");
        builder.setPositiveButton("Reset databases", new DialogInterface.OnClickListener() {

          public void onClick(DialogInterface dialog, int which) {
            // reset preferences
            /*final Editor e = prefs.edit();
            e.clear();
            e.commit();*/

            // reset DBs
            final ContentResolver cr = getApplication().getContentResolver();
            cr.delete(Cast.CONTENT_URI, null, null);
            cr.delete(Project.CONTENT_URI, null, null);
            cr.delete(Comment.CONTENT_URI, null, null);
            cr.delete(Tag.CONTENT_URI, null, null);
            Toast.makeText(getApplicationContext(), "Databases reset.", Toast.LENGTH_LONG).show();
            android.os.Process.killProcess(android.os.Process.myPid());
          }
        });

        builder.setNegativeButton(android.R.string.cancel, null);
        builder.show();
        break;
      }

      default:
        return super.onOptionsItemSelected(item);
    }
    return true;
  }

  public void onClick(View v) {
    switch (v.getId()) {

    case R.id.ScanQRCodeButton:
      IntentIntegrator.initiateScan(this);
      break;

    case R.id.PairingButton:

      pair(((EditText) findViewById(R.id.PairingText)).getText()
          .toString());

      break;

    }
  }

  private void pair(String code) {
    try {
      nc.pairDevice(code);
      if (nc.isPaired()) {
        startActivity(new Intent(this, MainActivity.class));
        finish();
      }
    } catch (final Exception e) {
      e.printStackTrace();
      Toast.makeText(this, e.toString(), Toast.LENGTH_LONG).show();
    }
  }

  public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
    switch (v.getId()){
    case R.id.PairingText:
      pair(((EditText) findViewById(R.id.PairingText)).getText()
          .toString());
      return true;
    }
    return false;
  }


  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode){

    case IntentIntegrator.REQUEST_CODE:
      final IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
      if (scanResult != null){
        final String format = scanResult.getFormatName();
        // Handle successful scan
        if (format == null){
          // no barcode scanner installed. It'll pop up a install request.
        }else if (format.equals("QR_CODE")) {
          pair(scanResult.getContents());
        } else {
          Toast.makeText(this,
              "Scanned barcode does not seem to be a QRCode",
              Toast.LENGTH_LONG).show();
        }

      }else{
        switch (requestCode) {
        // other intents here

        } // switch requestCode
      }
    } // switch requestCode
  }

}