Android Open Source - Quiz Main Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (c) 2013, Maciej Laskowski. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 */*from  w  w  w .j av  a 2s  .  co  m*/
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  
 * 
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact mlaskowsk@gmail.com if you need additional information
 * or have any questions.
 */

package com.mlaskows.quiz.activity;

import roboguice.inject.ContentView;
import roboguice.inject.InjectView;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.mlaskows.quiz.R;

/**
 * Main application activity.
 * 
 * @author Maciej Laskowski
 * 
 */
@ContentView(R.layout.activity_main)
public class MainActivity extends FullScreenActivity {

  @InjectView(R.id.buttonStart)
  private Button buttonStart;

  @InjectView(R.id.buttonMoreGames)
  private Button buttonMoreGames;

  @InjectView(R.id.buttonExit)
  private Button buttonExit;

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

  private void initButtons() {
    initStartGameButton();
    initMoreGamesButton();
    initExitButton();
  }

  private void initExitButton() {
    buttonExit.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        createExitDialog().show();
      }
    });
  }

  private void initMoreGamesButton() {
    buttonMoreGames.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri
            .parse(getString(R.string.check_more_games_url)));
        startActivity(browserIntent);
      }
    });
  }

  private void initStartGameButton() {
    buttonStart.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        Intent intent = new Intent(getApplicationContext(), LevelsActivity.class);
        startActivity(intent);
      }
    });
  }

  private Dialog createExitDialog() {
    return new AlertDialog.Builder(this).setTitle(getString(R.string.exit_dialog_header))
        .setMessage(getString(R.string.exit_dialog_text))
        .setPositiveButton(getString(R.string.positive_ans), createPositiveAnswerListener())
        .setNegativeButton(getString(R.string.negative_ans), createNegativeAnswerListener()).create();
  }

  private android.content.DialogInterface.OnClickListener createPositiveAnswerListener() {
    return new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        // Exit application
        finish();
      }
    };
  }

  private android.content.DialogInterface.OnClickListener createNegativeAnswerListener() {
    return new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        // Do nothing
        return;
      }
    };
  }

  @Override
  public void onBackPressed() {
    createExitDialog().show();
  }
}

Java Source Code List

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