Android Open Source - binghamton_svc Main Activity

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From Project

Back to project page binghamton_svc.

License

The source code is released under:

MIT License

Java Source Code

package com.github.chrzhang;
/*w w  w.  ja  va  2  s .co  m*/
import com.github.chrzhang.R;

import Fragments.AboutSectionFragment;
import Fragments.ContactSectionFragment;
import Fragments.EventsSectionFragment;
import Fragments.IsOnlineDialogFragment;
import Fragments.LaunchpadSectionFragment;
import Fragments.SignupSectionFragment;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.AlertDialog;
import android.app.FragmentTransaction;
import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebView;
import android.widget.Toast;

/**
 * Starting point for the application. 
 * Creates the swipe views necessary for navigation as well as the tab-based
 * layout. Customizes the action-bar with buttons and coloring as well.
 * @author Christopher Zhang
 */
public class MainActivity extends FragmentActivity implements ActionBar.TabListener 
{
  AppSectionsPagerAdapter mAppSectionsPagerAdapter;
  ViewPager mViewPager;
  WebView eWebView;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) 
  {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());
      final ActionBar actionBar = getActionBar();
      actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#2E6444")));
      actionBar.setHomeButtonEnabled(false);
      actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
      mViewPager = (ViewPager) findViewById(R.id.pager);
      mViewPager.setOffscreenPageLimit(5);
      mViewPager.setAdapter(mAppSectionsPagerAdapter);
      mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() 
      {
        @Override
        public void onPageSelected(int position) 
        {
          actionBar.setSelectedNavigationItem(position);
        }
      });
      
      for (int i = 0; i < mAppSectionsPagerAdapter.getCount(); i++) 
      {
        actionBar.addTab(
            actionBar.newTab()
                .setText(mAppSectionsPagerAdapter.getPageTitle(i))
                .setTabListener(this));
      }
      if (!isOnline())
      {
        DialogFragment newFragment = new IsOnlineDialogFragment();
        newFragment.show(getSupportFragmentManager(), "isonline");
      }
  }
  
  public boolean isOnline() 
  {
    ConnectivityManager cm =
        (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnectedOrConnecting()) 
    {
        return true;
    }
    return false;
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) 
  {
      getMenuInflater().inflate(R.menu.main, menu);
      return true; 
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) 
  {
    switch (item.getItemId()) 
    {
      case R.id.itemMeets:
        Context context = getApplicationContext();
        CharSequence text = "svc@binghamtonsa.org \n Contact us to be added to the listserv for news and meeting details.";
        int duration = Toast.LENGTH_LONG;
        Toast toast = Toast.makeText(context, text, duration);
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();
        return true;
      case R.id.source:
        new AlertDialog.Builder(this)
        .setTitle("Developers")
        .setMessage("This project is maintained as open-source by members of the Binghamton Computer Science Research Alliance, now known as the Binghamton ACM Chapter.\n\nDeveloper: \nChristopher Zhang (christopherzhang3@gmail.com) \n\nDesign: \nCheng Lin (khuang13@binghamton.edu) \n\nPlease email us with bugs, fixes, or improvements you would like to see.\n\nNew project ideas or proposals are also welcome.\n\n Contact acm.projects@binghamton.edu").show();
        return true;
      default: 
        return true;
    }  
  }

  @Override
  public void onTabReselected(Tab arg0, FragmentTransaction arg1) 
  {
  }

  @Override
  public void onTabSelected(Tab arg0, FragmentTransaction arg1) 
  {
    mViewPager.setCurrentItem(arg0.getPosition());
  }

  @Override
  public void onTabUnselected(Tab arg0, FragmentTransaction arg1) 
  {
  }
    
  public static class AppSectionsPagerAdapter extends FragmentPagerAdapter 
  {
    
    public AppSectionsPagerAdapter(FragmentManager fm) 
    {
      super(fm);
    }

    @Override
    public Fragment getItem(int arg0) 
    {
      switch (arg0) 
      {
        case 0:
          return new LaunchpadSectionFragment();
        case 1:
          return new AboutSectionFragment();
        case 2:
          return new EventsSectionFragment();
        case 3:
          return new SignupSectionFragment();
        default:
          return new ContactSectionFragment();
      }
    }

    @Override
    public int getCount() 
    {
      return 5;
    }
    
    @Override
    public CharSequence getPageTitle(int position) 
    {
      String[] tabTitles = {"Home", "About", "Events", "Signup", "Contact"};
      return tabTitles[position];
    }
  }
}

Java Source Code List

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