Android Open Source - Is-It-Here-Yet Is It Here Yet

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * Is It Here Yet? is a simple Android application that reads the
 * NextBus public XML feed and displays the arrival times for
 * transit vehicles for a chosen stop. //  w w w. ja  v a 2 s.c  o m
 * Copyright (C) 2011 Matthew Lam
 *
 * Is It Here Yet? 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 3 of the License, or
 * (at your option) any later version.
 *
 * Is It Here Yet? 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 Is It Here Yet?.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.sudfiwe.iihy.activity;

import com.sudfiwe.iihy.R;
import com.sudfiwe.iihy.uiinterface.DataManager;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.TabActivity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ListView;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TextView;

public class IsItHereYet extends TabActivity {

  protected static final int SELECT_TAB_INDEX=0;
  protected static final int RESULT_TAB_INDEX=1;

  private final String SELECT_TAB_TAG="selectTab";
  private final String RESULT_TAB_TAG="resultTab";

  private SelectActivity selectActivity;
  private ResultActivity resultActivity;

  private final int ABOUT_DIALOG_INDEX=0;

  private AlertDialog aboutDialog;

  private TabHost tabHost;

  private boolean updateResults;

  public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    tabHost=getTabHost();
    TabHost.TabSpec spec;
    Intent intent;

    DataManager.getInstance().setActivity(this);

    intent=new Intent().setClass(this,SelectActivity.class);

    spec=tabHost.newTabSpec(SELECT_TAB_TAG)
    .setIndicator("Choose A Stop").setContent(intent);
    tabHost.addTab(spec);

    intent=new Intent().setClass(this,ResultActivity.class);
    spec=tabHost.newTabSpec(RESULT_TAB_TAG)
    .setIndicator("Is It Here Yet?").setContent(intent);
    tabHost.addTab(spec);

    tabHost.setOnTabChangedListener(
        new OnTabChangeListener() {

          public void onTabChanged(String tabId) {

            if (tabId.equals(RESULT_TAB_TAG)) {

              resultActivity.showTab(updateResults);
            }
          }
        }
    );
  }

  public void showSelectTab() {

    getTabHost().setCurrentTab(IsItHereYet.SELECT_TAB_INDEX);
  }

  public void showResultTab() {

    updateResults=true;

    getTabHost().setCurrentTab(IsItHereYet.RESULT_TAB_INDEX);

    updateResults=false;
  }

  public void setSelectActivity(SelectActivity act) {

    selectActivity=act;
  }

  public void setResultActivity(ResultActivity act) {

    resultActivity=act;
  }

  public AlertDialog createAboutDialog() {

    if (aboutDialog==null) {

      LayoutInflater inflater=(LayoutInflater)
      this.getSystemService(LAYOUT_INFLATER_SERVICE);
      View layout=inflater.inflate(R.layout.aboutdialog,
          (ListView)findViewById(R.id.aboutRoot));

      TextView text=(TextView)layout.findViewById(R.id.aboutText);
      text.setText(Html.fromHtml("<b>2011, Matthew Lam.</b><br/>"+
          "<b><a href='http://www.reservedbits.com/javawork/isithereyet'>Homepage</a></b><br/>"+
          "Data provided by <b><a href='http://www.nextbus.com/homepage/'>NextBus</a></b> public XML feed."));
      text.setMovementMethod(LinkMovementMethod.getInstance());
      
      AlertDialog.Builder builder=new AlertDialog.Builder(this);
      builder.setView(layout);
      builder.setPositiveButton("Ok",new DialogInterface.OnClickListener() {
               public void onClick(DialogInterface dialog, int id) {
                 aboutDialog.dismiss();
               }
           });
      aboutDialog=builder.create();
      aboutDialog.setTitle("About Is It Here Yet");
      aboutDialog.setIcon(R.drawable.ic_logo);
    }


    return aboutDialog;
  }

  public boolean onCreateOptionsMenu(Menu menu) {

    MenuInflater inflater=getMenuInflater();
    inflater.inflate(R.menu.menu,menu);
    return true;
  }

  protected Dialog onCreateDialog(int id) {

    Dialog dialog=null;

    if (id==ABOUT_DIALOG_INDEX) {

      dialog=createAboutDialog();
    }

    return dialog;
  }

  public boolean onOptionsItemSelected(MenuItem item) {

    int id=item.getItemId();

    if (id==R.id.refreshMenu) {

      selectActivity.load();
      showSelectTab();
    } else if (id==R.id.saveMenu) {

      DataManager.getInstance().savePreferences();
    } else if (id==R.id.aboutMenu) {

      showDialog(ABOUT_DIALOG_INDEX);
    } else if (id==R.id.exitMenu) {

      finish();
    }

    return true;
  }
}

Java Source Code List

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