Android Open Source - ironcontrol-for-android Multichoice List Dialog

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License

The source code is released under:

Apache License

Java Source Code

/*
 * #%L/* w  ww. j a v  a  2  s  . c  o  m*/
 * =====================================================
 *   _____                _     ____  _   _       _   _
 *  |_   _|_ __ _   _ ___| |_  / __ \| | | | ___ | | | |
 *    | | | '__| | | / __| __|/ / _` | |_| |/ __|| |_| |
 *    | | | |  | |_| \__ \ |_| | (_| |  _  |\__ \|  _  |
 *    |_| |_|   \__,_|___/\__|\ \__,_|_| |_||___/|_| |_|
 *                             \____/
 * 
 * =====================================================
 * 
 * Hochschule Hannover
 * (University of Applied Sciences and Arts, Hannover)
 * Faculty IV, Dept. of Computer Science
 * Ricklinger Stadtweg 118, 30459 Hannover, Germany
 * 
 * Email: trust@f4-i.fh-hannover.de
 * Website: http://trust.f4.hs-hannover.de/
 * 
 * This file is part of ironcontrol for android, version 1.0.1, implemented by the Trust@HsH research group at the Hochschule Hannover.
 * %%
 * Copyright (C) 2013 Trust@HsH
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */
package de.hshannover.f4.trust.ironcontrol.view.dialogs;

import java.util.ArrayList;
import java.util.List;

import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.database.Cursor;
import android.net.Uri;
import de.hshannover.f4.trust.ironcontrol.R;
import de.hshannover.f4.trust.ironcontrol.database.entities.Requests;
import de.hshannover.f4.trust.ironcontrol.database.entities.Responses;
import de.hshannover.f4.trust.ironcontrol.logger.Level;
import de.hshannover.f4.trust.ironcontrol.logger.Logger;
import de.hshannover.f4.trust.ironcontrol.logger.LoggerFactory;

public abstract class MultichoiceListDialog extends Builder{

  private static final Logger logger = LoggerFactory.getLogger(MultichoiceListDialog.class);

  protected Context context;

  private boolean[] selectedItems;

  private String[] rowLabels, rowIds;

  protected int resIdButton;

  public MultichoiceListDialog(Context context, Uri uri, int resIdTitle, int resIdButton) {
    super(context);
    logger.log(Level.DEBUG, "NEW...");
    this.context = context;
    this.resIdButton = resIdButton;

    getUriData(uri);

    this.selectedItems = new boolean[rowIds.length];

    setTitle(resIdTitle);
    setMultiChoiceItems(rowLabels);
    setPositiveButton();
    setNegativeButton();
    setNeutralButton();

    logger.log(Level.DEBUG, "...NEW");
  }

  private void getUriData(Uri uri){
    Cursor cData= context.getContentResolver().query(uri, null, null, null, null);

    rowLabels = new String[cData.getCount()];
    rowIds = new String[cData.getCount()];

    int i = 0;
    while(cData.moveToNext()){
      int column_NAME = cData.getColumnIndex(Requests.COLUMN_NAME);
      int column_ID = cData.getColumnIndex(Requests.COLUMN_ID);

      if(column_NAME == -1 || column_ID == -1){
        // for Responses
        int column_DATE = cData.getColumnIndex(Responses.COLUMN_DATE);
        int column_TIME = cData.getColumnIndex(Responses.COLUMN_TIME);
        column_ID = cData.getColumnIndex(Responses.COLUMN_ID);

        rowIds[i] = cData.getString(column_ID);
        rowLabels[i] = cData.getString(column_DATE) + " " + cData.getString(column_TIME);

      }else {
        // for Requests
        rowIds[i] = cData.getString(column_ID);
        rowLabels[i] = cData.getString(column_NAME);
      }

      i++;
    }

    cData.close();
  }

  private void setMultiChoiceItems(String[] rowLabels){
    setMultiChoiceItems(rowLabels, selectedItems, new OnMultiChoiceClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which, boolean isChecked) {}});
  }

  private void setPositiveButton() {
    setPositiveButton(getPositiveButtonLabel(), new OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int clicked) {
        callBack(clicked);
      }
    });
  }

  protected String getPositiveButtonLabel() {
    return context.getResources().getString(R.string.ok);
  }

  private void setNegativeButton() {
    setNegativeButton(getNegativeButtonLabel(), null);
  }

  protected String getNegativeButtonLabel() {
    return context.getResources().getString(R.string.string_abort);
  }

  protected void setNeutralButton() {
    setNeutralButton(getNeutralButtonLabel(), new OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int clicked) {
        callBack(clicked);
      }
    });
  }

  protected String getNeutralButtonLabel() {
    return context.getResources().getString(R.string.ok);
  }

  /**
   * The callBack() comes from the multichoice button listeners neutral- and positive-button.
   * @param clicked is the button id DialogInterface.BUTTON_POSITIVE or DialogInterface.BUTTON_NEUTRAL
   */
  protected void callBack(int clicked){
    if (context instanceof MultichoiceListEvent) {
      MultichoiceListEvent event = (MultichoiceListEvent) context;

      event.onClickeMultichoiceDialogButton(getSelectedRowIds(), resIdButton, clicked);
    }else {
      logger.log(Level.WARN, "context is not instance of MultichoiceListEvent");
    }
  }

  protected List<String> getSelectedRowIds() {
    List<String> selectedIds = new ArrayList<String>();

    for (int i = 0; i < selectedItems.length; i++) {
      if (selectedItems[i]) {
        selectedIds.add(rowIds[i]);
      }
    }
    return selectedIds;
  }

  public boolean isEmpty(){
    if(rowLabels.length == 0){
      return true;
    }

    return false;
  }
}

Java Source Code List

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