Android Open Source - personal-diary Note Card Activity

• Back to Development/activity  ↑

From Project

Back to project page personal-diary.

License

The source code is released under:

GNU Lesser General Public License

Java Source Code

/**
 * Author    : Rahul A R/*from   w w w . ja va2  s  .  c  o  m*/
 * Institute : IIIT-Bangalore
 * Date      : 12:57:50 PM
 */
package com.rahul.pDiary;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.SearchManager;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Environment;
import android.text.format.DateUtils;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Toast;

import com.fima.cardsui.views.CardUI;
import com.google.ads.AdRequest;
import com.google.ads.AdView;

public class NoteCardActivity extends Activity {
  private CardUI mCardView;
  private static final String TAG = "NoteCardActivity";
  private ArrayList<MyCard> myCards = new ArrayList<MyCard>();

  private static String sortOrder = " DESC";
  private Context thisContext;
  private Intent thisIntent;

  private AdView adView;

  Cursor cursor;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    if (DiaryApp.isThemeDark())
      setTheme(android.R.style.Theme_DeviceDefault);
    else
      setTheme(android.R.style.Theme_DeviceDefault_Light);

    super.onCreate(savedInstanceState);
    setContentView(R.layout.note_card_activity);
    adView = (AdView) findViewById(R.id.ad_banner);

    // init CardView
    mCardView = (CardUI) findViewById(R.id.cardsview);
    mCardView.setSwipeable(false);

    thisContext = this;
    thisIntent = getIntent();
  }

  void searchAndSet(String query) {
    Log.d(TAG, query);
    Cursor searchCursor = getContentResolver().query(DbHandler.CONTENT_URI,
        null, DbHandler.C_SUBJECT + " LIKE " + "'%" + query + "%'",
        null, DbHandler.C_ID + " DESC");
    displayCards(searchCursor);
  }

  @Override
  protected void onResume() {
    super.onResume();
    if (Intent.ACTION_SEARCH.equals(thisIntent.getAction())) {
      String query = thisIntent.getStringExtra(SearchManager.QUERY);
      searchAndSet(query);
    } else {
      fetchAndDisplay();
    }
    mCardView.refresh();

    try {
      // Create the adView
      AdRequest adRequest;

      // Add request
      adRequest = new AdRequest();
      adRequest.addTestDevice(AdRequest.TEST_EMULATOR);
      adView.loadAd(adRequest);
    } catch (Exception e) {
      Log.d(TAG, "Error is here");
      e.printStackTrace();
    }
  }

  @Override
  protected void onDestroy() {
    if (adView != null) {
      adView.destroy();
    }
    super.onDestroy();
  }

  void fetchAndDisplay() {
    cursor = getContentResolver().query(DbHandler.CONTENT_URI, null, null,
        null, DbHandler.C_ID + sortOrder);
    displayCards(cursor);
  }

  void displayCards(Cursor cursor) {
    Log.d(TAG, "entered displayCards");
    mCardView.clearCards();
    while (cursor.moveToNext()) {
      String subject = cursor.getString(cursor
          .getColumnIndex(DbHandler.C_SUBJECT));
      String note = cursor.getString(cursor
          .getColumnIndex(DbHandler.C_NOTE));
      String titleColor = cursor.getString(cursor
          .getColumnIndex(DbHandler.C_COLOR_TITLE));
      String stripeColor = cursor.getString(cursor
          .getColumnIndex(DbHandler.C_COLOR_STRIPE));

      final long id = cursor.getLong(cursor
          .getColumnIndex(DbHandler.C_ID));
      CharSequence relativeTime = DateUtils.getRelativeTimeSpanString(id);

      if (subject.length() >= 20) {
        subject = subject.substring(0, 20) + "...";
      }
      if (note.length() >= 60) {
        note = note.substring(0, 60) + "...";
      }
      note = relativeTime.toString() + "\n" + note;
      Log.d(TAG, "just before creation" + subject + ":" + note + ", "
          + titleColor + " " + stripeColor);
      if (titleColor == null || titleColor.isEmpty() || titleColor.equals("null"))
        titleColor = "#808080";
      if (stripeColor == null || stripeColor.isEmpty() || stripeColor.equals("null"))
        stripeColor = "#808080";
      MyCard newCard = new MyCard(subject, note, stripeColor, titleColor,
          false, true);

      newCard.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
          startActivity(new Intent(thisContext, ViewActivity.class)
              .putExtra("id", id));
        }
      });
      myCards.add(newCard);
      mCardView.addCard(newCard);
    }
  }

  // Menu stuff
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_note_list_activity, menu);
    return super.onCreateOptionsMenu(menu);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {

    switch (item.getItemId()) {

    case R.id.search:
      onSearchRequested();
      return true;

    case R.id.sort:
      createSortMenu();
      return true;

    case R.id.backup:
      Toast.makeText(this, "Backing up..", Toast.LENGTH_SHORT).show();
      DbHandler.closeDatabase();
      backUp();
      return true;

    case R.id.restore:
      DbHandler.closeDatabase();
      try {
        restore();
      } catch (XmlPullParserException e) {
        e.printStackTrace();
      } catch (IOException e) {
        e.printStackTrace();
      }
      onResume();
      return true;

    default:
      return false;
    }
  }

  void createSortMenu() {
    final CharSequence[] items = { "Earliest first", "Latest first" };

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle("Select an option");
    builder.setItems(items, new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int item) {
        if (items[item].equals("Earliest first")) {
          sortOrder = "";
        }
        if (items[item].equals("Latest first")) {
          sortOrder = " DESC";
        }
        fetchAndDisplay();
      }
    });
    AlertDialog alert = builder.create();
    alert.show();
  }

  // xml backup procedure
  void backUp() {
    Cursor cursor = getContentResolver().query(DbHandler.CONTENT_URI, null,
        null, null, null);
    int id = cursor.getColumnIndex(DbHandler.C_ID);
    int subject = cursor.getColumnIndex(DbHandler.C_SUBJECT);
    int note = cursor.getColumnIndex(DbHandler.C_NOTE);
    int picture = cursor.getColumnIndex(DbHandler.C_PICTURE);
    int title = cursor.getColumnIndex(DbHandler.C_COLOR_TITLE);
    int stripe = cursor.getColumnIndex(DbHandler.C_COLOR_STRIPE);

    try {
      // create directory for backup
      File dir = new File(Environment.getExternalStorageDirectory()
          .getAbsolutePath() + "/pDiary");
      if (!dir.exists())
        dir.mkdirs();

      // SharedPreferences prefs = getSharedPreferences("PREFS",
      // MODE_WORLD_WRITEABLE);
      // SharedPreferences.Editor editor = prefs.edit();
      // int number = prefs.getInt("backUp_number", 0);
      // editor.putInt("backUp_number", ++number);
      // editor.commit();

      // Path to the external backup
      OutputStream output = new FileOutputStream(Environment
          .getExternalStorageDirectory().getAbsolutePath()
          + "/pDiary/backup.xml");

      while (cursor.moveToNext()) {
        String backingUp = "";
        backingUp += "<row>";
        backingUp += "<C_ID>" + cursor.getLong(id) + "</C_ID>";
        backingUp += "<C_SUB>" + cursor.getString(subject) + "</C_SUB>";
        backingUp += "<C_NOTE>" + cursor.getString(note) + "</C_NOTE>";
        backingUp += "<C_PIC>" + cursor.getString(picture) + "</C_PIC>";
        backingUp += "<C_COLOR_TITLE>" + cursor.getString(title)
            + "</C_COLOR_TITLE>";
        backingUp += "<C_COLOR_STRIPE>" + cursor.getString(stripe)
            + "</C_COLOR_STRIPE>";
        backingUp += "</row>";
        Log.d(TAG, backingUp);
        // transfer bytes from the Input File to the Output File
        byte[] buffer = backingUp.getBytes();
        output.write(buffer, 0, buffer.length);
      }
      output.flush();
      output.close();
      Toast.makeText(this, "Back up successful.", Toast.LENGTH_SHORT)
          .show();
    } catch (FileNotFoundException e) {
      Toast.makeText(this, "Back up failed.", Toast.LENGTH_SHORT).show();
      e.printStackTrace();
    } catch (IOException e) {
      Toast.makeText(this, "Back up failed.", Toast.LENGTH_SHORT).show();
      e.printStackTrace();
    }

  }

  // xml restore procedure
  void restore() throws XmlPullParserException, IOException {
    Long id = (long) 0;
    String subject = "", note = "", picPath = "", titleColor = "", stripeColor = "";

    XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
    factory.setNamespaceAware(true);
    XmlPullParser xpp = factory.newPullParser();

    FileReader reader = null;
    try {
      reader = new FileReader(Environment.getExternalStorageDirectory()
          .getAbsolutePath() + "/pDiary/backup.xml");
    } catch (Exception e) {
      Toast.makeText(getBaseContext(), "Backup file not found",
          Toast.LENGTH_LONG).show();
    }

    xpp.setInput(reader);
    int eventType = xpp.getEventType();

    while (eventType != XmlPullParser.END_DOCUMENT) {
      // if (eventType == XmlPullParser.START_DOCUMENT) {
      // Log.d(TAG, "Start document");
      // } else if (eventType == XmlPullParser.TEXT) {
      // Log.d(TAG, "Start tag " + xpp.getName());
      // } else if (eventType == XmlPullParser.END_TAG) {
      // Log.d(TAG, "End tag " + xpp.getName());
      // }
      if (eventType == XmlPullParser.START_TAG) {
        if (xpp.getName().equals("C_ID")) {
          xpp.next();
          id = Long.parseLong(xpp.getText());
          // Log.d(TAG, "" + id);
        } else if (xpp.getName().equals("C_SUB")) {
          xpp.next();
          subject = xpp.getText();
          // Log.d(TAG, subject);
        } else if (xpp.getName().equals("C_NOTE")) {
          xpp.next();
          note = xpp.getText();
          // Log.d(TAG, note);
        } else if (xpp.getName().equals("C_PIC")) {
          xpp.next();
          picPath = xpp.getText();
          // Log.d(TAG, picPath);
        } else if (xpp.getName().equals("C_COLOR_TITLE")) {
          xpp.next();
          titleColor = xpp.getText();
          // Log.d(TAG, picPath);
        } else if (xpp.getName().equals("C_COLOR_STRIPE")) {
          xpp.next();
          stripeColor = xpp.getText();
          // Log.d(TAG, picPath);
        }
      } else if (eventType == XmlPullParser.END_TAG) {
        if (xpp.getName().equals("row")) {
          // insert into notes.db
          getContentResolver().insert(
              DbHandler.CONTENT_URI,
              DbHandler.stringsToValues(id, subject, note,
                  picPath, titleColor, stripeColor));
        }
      }
      eventType = xpp.next();
    }
    Toast.makeText(getBaseContext(), "Restore successful",
        Toast.LENGTH_LONG).show();
  }
}

Java Source Code List

• Back to Development/activity  ↑