Android Open Source - MythTrack Remove Item Dialog

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License

The source code is released under:
MIT License
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Java Source Code

/**
 * RemoveItemDialog presents a dialog for the user confirm the sale or removal of an item from the
 * hero's inventory/*from  w w  w  .j  av  a2s .  co m*/
 *
 * @author Nolan Jurgens
 */

package nolanjurgens.mythtrack.app;

// IMPORTS /////////////////////////////////////////////////////////////////////////////////////////
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.os.Bundle;

import nolanjurgens.mythtrack.R;

////////////////////////////////////////////////////////////////////////////////////////////////////
// CLASS - RemoveItemDialog                                                                       //
////////////////////////////////////////////////////////////////////////////////////////////////////
public class RemoveItemDialog extends DialogFragment
{
  // INTERFACES ////////////////////////////////////////////////////////////////////////////////////

  /** Interface for a listener for when an item is deleted from an inventory.*/
  OnItemRemovedListener itemRemovedCallback;
  public interface OnItemRemovedListener
  {
    public void onItemRemoved(long inventoryID, int itemValue);
  }

  // METHODS ///////////////////////////////////////////////////////////////////////////////////////

  /**
   * Called when the fragment is attached to the activity.
   * @param activity The host activity.
   */
  @Override
  public void onAttach(Activity activity)
  {
    super.onAttach(activity);

    // Make sure the host activity implements the interface.
    try
    {
      itemRemovedCallback = (OnItemRemovedListener) activity;
    }
    catch(ClassCastException exception)
    {
      throw new ClassCastException(activity.toString() + " must implement onItemRemoved");
    }
  }


  /**
   * Called when the dialog is to be created.
   * @param arguments Arguments for the dialog.
   * @return The created dialog.
   */
  @Override
  public Dialog onCreateDialog(Bundle arguments)
  {
    final long inventoryID = getArguments().getLong("inventory_id");
    final boolean selling = getArguments().getBoolean("selling");
    final String itemName = getArguments().getString("item_name");
    final int itemValue = getArguments().getInt("item_value");

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

    // User chose to sell the item.
    if(selling)
    {
      builder.setTitle(R.string.inventorylist_sell_title);
      String formatMessage = getResources().getString(R.string.inventorylist_sell_message);
      String message = String.format(formatMessage, itemName, itemValue);
      builder.setMessage(message);
      // Set up the "Sell" button and its actions.
      builder.setPositiveButton(R.string.inventorylist_sell_positive_button,
        new DialogInterface.OnClickListener()
        {
          /**
           * Handle the "Remove" button being clicked.
           * @param dialogInterface The dialog being handled.
           * @param button Which button was clicked.
           */
          @Override
          public void onClick(DialogInterface dialogInterface, int button)
          {
            itemRemovedCallback.onItemRemoved(inventoryID, itemValue);
          }
        });
      // Set up the "Cancel" button and its actions.
      builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener()
      {
        /**
         * Handle the "Cancel" button being clicked.
         * @param dialogInterface The dialog being handled.
         * @param button Which button was clicked.
         */
        @Override
        public void onClick(DialogInterface dialogInterface, int button)
        {
          // Just exit the dialog.
        }
      });
    }
    // User chose to remove the item.
    else
    {
      // Set up the "Remove" button and its actions.
      builder.setTitle(R.string.inventorylist_remove_title);
      String formatMessage = getResources().getString(R.string.inventorylist_remove_message);
      String message = String.format(formatMessage, itemName);
      builder.setMessage(message);
      builder.setPositiveButton(R.string.inventorylist_remove_positive_button,
        new DialogInterface.OnClickListener()
        {
          /**
           * Handle the "Remove" button being clicked.
           * @param dialogInterface The dialog being handled.
           * @param button Which button was clicked.
           */
          @Override
          public void onClick(DialogInterface dialogInterface, int button)
          {
            itemRemovedCallback.onItemRemoved(inventoryID, 0);
          }
        });
      // Set up the "Cancel" button and its actions.
      builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener()
      {
        /**
         * Handle the "Cancel" button being clicked.
         * @param dialogInterface The dialog being handled.
         * @param button Which button was clicked.
         */
        @Override
        public void onClick(DialogInterface dialogInterface, int button)
        {
          // Just exit the dialog.
        }
      });
    }

    return builder.create();
  }

}
Java Source Code List
