Android Open Source - SimpleShoppingList Manage Lists

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * at.mkweb.android.simpleshoppinglist.ManageLists
 * /*from w  ww . j a  va2 s . c o m*/
 * LICENSE:
 *
 * This file is part of SimpleShoppingList, an Android app to create very simple shopping lists (http://android.mk-web.at/app/simpleshoppinglist.html).
 *
 * SimpleShoppingList 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 2 of the License, or (at your option) any
 * later version.
 *
 * SimpleShoppingList 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 software.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * @author Mario Klug <mario.klug@mk-web.at>
 * @package at.mkweb.android.simpleshoppinglist
 * 
 * @license http://www.gnu.org/licenses/gpl.html
 */

package at.sourcefactory.android.simpleshoppinglist;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Toast;

public class ManageLists extends Activity {

  SQLiteDatabase db;
  
  int activeCategory = 0;
  LinearLayout linear;
  
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    if(savedInstanceState != null) {
      activeCategory = new Integer(savedInstanceState.getString("category_id"));
    } else {
      Bundle extras = getIntent().getExtras();
      if(extras != null) {
        String category_id = extras.getString("category_id");
        if(category_id != null) {
          activeCategory = new Integer(category_id);
        }
      }
    }
    
    if(activeCategory == 0) {
      
      Log.w("WARNING", "No active ID found");
    }
    
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.categories);
    
        db = ((SQLiteDatabase) Registry.get(Registry.DATABASE));
      
      ((Button) findViewById(R.id.button_add)).setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View v) {
        
        showAddListDialog();
      }
    });
      
      updateView();
  }
  
  public void goBack(int categoryId) {
    
    setResult(categoryId);
    finish();
  }
  
  public void updateView() {
    
    linear = ((LinearLayout) findViewById(R.id.ContentLinearLayout));
    linear.removeAllViews();
    
    Cursor c = db.rawQuery("SELECT * FROM categories;", null);
    
    if(c.getCount() > 0) {
    
      c.moveToFirst();
      
      do {
        
        int id = new Integer(c.getString(c.getColumnIndex("id")));
        String name = c.getString(c.getColumnIndex("name"));
        
        if(id == 1 && name == null) {
              
              name = getText(R.string.app_name).toString();
            }
        
        List l = new List(this);
        if(id == activeCategory) {
          l.setActive(true);
        }
        l.setId(id);
        l.setName(name);
        l.create();
        
        linear.addView(l);
        
      } while (c.moveToNext());
    }
  }
  
    void showToast(String message) {
      
      showToast(message, Toast.LENGTH_SHORT);
    }
    
    private void showToast(String message, int duration) {
      
      Toast toast = Toast.makeText(this, message, duration);
      toast.show();
    }
    
    private void createList(String name) {
      
      ContentValues cv = new ContentValues();
      cv.put("name", name);
      
      db.insert("categories", null, cv);
      updateView();
    }
    
    public void showAddListDialog() {
      
      final EditText et = new EditText(this);
    
    AlertDialog.Builder b = new AlertDialog.Builder(this);
    b.setView(et);
    b.setPositiveButton(getText(R.string.button_ok), new AlertDialog.OnClickListener() {
      
      @Override
      public void onClick(DialogInterface dialog, int which) {
        
        String value = et.getText().toString().trim();
        
        if(value.length() > 0) {
          
          showToast(getText(R.string.added) + ": " + value);
          createList(value);
        } else {
          
          showToast(getText(R.string.err_elem_not_entered).toString());
        }
        dialog.cancel();
      }
    });
    
    b.setNegativeButton(getText(R.string.button_cancel), new AlertDialog.OnClickListener() {
      
      @Override
      public void onClick(DialogInterface dialog, int which) {
        
        dialog.cancel();
      }
    }); 
    
    AlertDialog dialog = b.create();
    
    dialog.setTitle(getText(R.string.dialog_new_list_title));
    dialog.setMessage(getText(R.string.dialog_new_list_message));
    
    dialog.show();
    }
    
    @Override
    public boolean onCreateOptionsMenu(Menu menu){

      MenuInflater inflater = getMenuInflater();
      inflater.inflate(R.menu.menu_categories, menu);
        
      return true;
    }
    
    public boolean onOptionsItemSelected (MenuItem item){

      if(item.getItemId() ==  R.id.menu_add_list) {
        
        showAddListDialog();
      }

      if(item.getItemId() == R.id.menu_back) {

        goBack(activeCategory);
      }

      return false;
    }
}

Java Source Code List

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