Android Open Source - Stem-Esteem Stem Esteem

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License

The source code is released under:

GNU General Public License

Java Source Code

package whipkey.stemesteem.main;
/*from  ww w.  j  a  va2 s . com*/
// Copyright 2011, Zackary Whipkey
// This program/source is distributed under the terms of the GNU General Public License.
// Please read the License.txt file for more information.

import android.support.v4.app.FragmentActivity;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.CursorAdapter;
import android.widget.ExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
import android.support.v4.app.*;

import whipkey.stemesteem.R;
import whipkey.stemesteem.components.EndingAddDialog;
import whipkey.stemesteem.components.EndingEditDialog;
import whipkey.stemesteem.components.EndingListFragment;
import whipkey.stemesteem.components.EndingListFragment.DialogItemClickListener;
import whipkey.stemesteem.components.StemListFragment;
import whipkey.stemesteem.components.StemListFragment.StemListItemClickListener;
import whipkey.stemesteem.db.StemDbAdapter;
import whipkey.stemesteem.db.StemDbHelper;
import whipkey.stemesteem.db.StemProvider;

import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnDismissListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;

/**
 * Stem-Esteem:
 * 
 * Requires Android 2.2
 * 
 * Main activity for the Stem-Esteem Android App. Stem-Esteem is a "framework"
 * app for sentence completion exercises, particularly focused upon self-esteem
 * issues. The application code can be modified to suit other uses, however.
 * v1.0's setup goes like this.
 * 
 * Weeks have stems (stems are the beginning fragment of a sentence, ie.
 * "I am reading--"
 * 
 * Stems have endings (Note that a stem can have multiple
 * endings... ie. "-- some source code." or "-- a book".
 * 
 * Weeks are handled by StemEsteem.java. Stems and Endings are handled by a
 * SQLite Database which is further explored in StemDbHelper and StemDbAdapter.
 * 
 * Endings can be inserted, edited, and deleted from the app itself. Stems and
 * Weeks can only be added programmatically.
 * 
 * Stem-Esteem includes support for both larger screen devices (tablets) and
 * medium-small screen (phones). Large and XLarge (tablets) devices will display
 * the current week, that week's stems, and a chosen stem's endings at once. <
 * Large devices will split the fragments of stems and endings into two
 * different "activities/screens".
 * 
 * Stem-Esteem used to the V4 android compatibility library to use fragments.
 */

public class StemEsteem extends FragmentActivity implements
    StemListItemClickListener, DialogItemClickListener {

  private StemDbAdapter dbHelper;
  private int currentWeek = 1;
  private int maxWeek = 20;
  private int minWeek = 1;

  private ListFragment f; // EndingListFragment. Only used in Large or above
              // screens (tablets, mainly)
  private Button nextButton; // button for going to the next week.
  private Button prevButton; // button for going to the previous week.
  private Button submitFeedback; // used to be used for Zubhium.
  private TextView weekText; // Textview to show what week the app is "on".
  private ListView fragList; // Listview of the stemlistfragment.

  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // get database access object.
    dbHelper = StemEsteemApplication.getDbHelper();
    dbHelper.open();
    // inflate views from layout.
    setContentView(R.layout.main);
    nextButton = (Button) findViewById(R.id.nextButton);
    prevButton = (Button) findViewById(R.id.prevButton);

    weekText = (TextView) findViewById(R.id.weekText);
    weekText.setText("Week " + currentWeek);
    f = (ListFragment) getSupportFragmentManager().findFragmentById(
        R.id.stemListFragment);
    fragList = f.getListView(); // get StemListFragment's listview.
    fillData(); // refresh listview/adapter

    nextButton.setOnClickListener(new View.OnClickListener() {
      public void onClick(View arg0) {
        if (currentWeek < maxWeek) {
          currentWeek++;

          weekText.setText("Week " + currentWeek);
          fillData();
        }
      }
    });

    prevButton.setOnClickListener(new View.OnClickListener() {
      public void onClick(View arg0) {
        if (currentWeek > minWeek) {
          currentWeek--;
          weekText.setText("Week " + currentWeek);
          fillData();
        }
      }
    });
  }

  // SUGGESTION - This method's function could be inserted into the
  // StemListFragment for more cohesion.
  public void fillData() { // method to reset the adapter with a new cursor
                // when a new week is chosen.

    if (dbHelper.getDatabase().isDbLockedByOtherThreads() == false) {
      Cursor c = dbHelper.getAllStems(currentWeek);
      String[] from = new String[] { "stem" };
      int[] to = new int[] { R.id.stemText };
      startManagingCursor(c);
      SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,
          R.layout.stemlist, c, from, to);
      fragList.setAdapter(adapter);

    } else {
      Log.w("DB LOCKED", "Other thread locked database during fillData()");
    }

  }

  @Override
  public void onDestroy() {
    super.onDestroy();
    if (dbHelper != null) {
      dbHelper.close();
    }
  }

  public int getCurrentWeek() {
    return currentWeek;
  }

  public void setCurrentWeek(int currentWeek) {
    this.currentWeek = currentWeek;
  }

  public void stemListItemClick(int weekNo, int stemNo, String stem) {
    if ((getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE) {
      EndingListFragment f = (EndingListFragment) getSupportFragmentManager()
          .findFragmentByTag("endingList");
      Bundle b = new Bundle();
      b.putInt("weekNo", weekNo);
      b.putInt("stemNo", stemNo);
      b.putString("stem", stem);
      f.setB(b);
      f.fillData();

    } else {
      Intent showEndings = new Intent(getApplicationContext(),
          EndingListActivity.class);
      showEndings.putExtra("weekNo", weekNo);
      showEndings.putExtra("stemNo", stemNo);
      showEndings.putExtra("stem", stem);
      startActivity(showEndings);
    }
  }

  public void dialogItemClick(Bundle b, int dialogId) { // called from our
                              // endingListFragment
                              // when on a
                              // tablet/large
                              // scrn.
    showDialog(dialogId, b);
  }

  @Override
  protected void onPrepareDialog(int id, Dialog dialog, Bundle args) { // Prepares
                                      // the
                                      // dialog
                                      // with
                                      // its
                                      // required
                                      // information.
    switch (id) {
    case 0: // We are editing an ending, so setup EditEndingDialog.
      EndingEditDialog d = (EndingEditDialog) dialog;
      d.setId(args.getInt("_id"));
      d.getInputEnding().setText(args.getString("ending"));
      d.setOnDismissListener(new OnDismissListener() {

        public void onDismiss(DialogInterface dialog) {// When
                                // dismissed/OK
                                // is clicked,
                                // refresh the
                                // list of
                                // endings to
                                // show changes.
          EndingListFragment f = (EndingListFragment) getSupportFragmentManager()
              .findFragmentByTag("endingList");
          if (f != null) {
            f.fillData();
          }
        }
      });
      break;
    case 1: // We are adding an ending, so setup AddEndingDialog.
      EndingAddDialog a = (EndingAddDialog) dialog;
      a.getStem().setText(args.getString("stem") + ":");
      a.getInputEnding().setText("");
      a.setB(args);
      a.setOnDismissListener(new OnDismissListener() {
        public void onDismiss(DialogInterface dialog) { // When
                                // dismissed/OK
                                // is clicked,
                                // refresh the
                                // list of
                                // endings to
                                // show changes.
          EndingListFragment f = (EndingListFragment) getSupportFragmentManager()
              .findFragmentByTag("endingList");
          if (f != null) {
            f.fillData();
          }
        }
      });
      break;
    }
  }

  @Override
  protected Dialog onCreateDialog(int id, Bundle args) {
    switch (id) {
    case 0:
      EndingEditDialog e = new EndingEditDialog(this);
      return e;

    case 1:
      EndingAddDialog a = new EndingAddDialog(this);
      return a;
    }
    return null;

  }

}

Java Source Code List

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