Android Open Source - android-flash-cards Actionbar Fragment

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License

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

/*
 * Copyright 2011, 2012 Thomas Amsler// w ww .  j a v  a  2s.  c om
 *
 * 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. 
 */

package org.thomasamsler.android.flashcards.fragment;

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

import org.thomasamsler.android.flashcards.ActionBusListener;
import org.thomasamsler.android.flashcards.AppConstants;
import org.thomasamsler.android.flashcards.MainApplication;
import org.thomasamsler.android.flashcards.R;
import org.thomasamsler.android.flashcards.activity.MainActivity;
import org.thomasamsler.android.flashcards.db.DataSource;
import org.thomasamsler.android.flashcards.model.CardSet;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class ActionbarFragment extends Fragment implements AppConstants, ActionBusListener {

  /*
   * These values need to be in sync with values present in card_set_actions.xml
   */
  private final int CS_OVERFLOW_ACTION_SETUP = 0;
  private final int CS_OVERFLOW_ACTION_FCE = 1;
  private final int CS_OVERFLOW_ACTION_SEND_FEEDBACK = 2;
  private final int CS_OVERFLOW_ACTION_ABOUT = 3;
  private final int CS_OVERFLOW_ACTION_HELP = 4;

  /*
   * These values need to be in sync with values present in card_actions.xml
   */
  private final int C_OVERFLOW_ACTION_ZOOM_IN = 0;
  private final int C_OVERFLOW_ACTION_ZOOM_OUT = 1;
  private final int C_OVERFLOW_ACTION_DELETE_CARD = 2;
  private final int C_OVERFLOW_ACTION_RESHUFFLE = 3;
  private final int C_OVERFLOW_ACTION_CARD_INFO = 4;
  private final int C_OVERFLOW_ACTION_HELP_CARD = 5;
  
  /*
   * These values need to be in sync with values present in setup_actions.xml
   */
  private final int S_OVERFLOW_ACTION_SEND_FEEDBACK = 0;
  private final int S_OVERFLOW_ACTION_ABOUT = 1;
  private final int S_OVERFLOW_ACTION_HELP = 2;

  private DataSource mDataSource;
  private ListView mListViewOverflow;
  private List<String> mOverflowActions;
  private ArrayAdapter<String> mArrayAdapter;

  private ImageButton mImageButtonEdit;
  private ImageButton mImageButtonNewCardSet;
  private ImageButton mImageButtonList;
  private ImageButton mImageButtonOverflow;
  private ImageView mImageViewPrevious;

  private int mFragmentType;

  private MainApplication mMainApplication;
  
  public static ActionbarFragment newInstance(int fragmentType) {

    ActionbarFragment actionbarFragment = new ActionbarFragment();
    actionbarFragment.setFragmentType(fragmentType);

    return actionbarFragment;
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    return inflater.inflate(R.layout.actionbar_fragment, container, false);
  }

  @Override
  public void onActivityCreated(final Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    mDataSource = ((MainActivity)getActivity()).getDataSource();
    
    mMainApplication = (MainApplication) getActivity().getApplication();
    
    mMainApplication.registerAction(this, ACTION_SHOW_OVERFLOW_ACTIONS);

    mImageButtonEdit = (ImageButton)getActivity().findViewById(R.id.imageButtonEdit);
    mImageButtonEdit.setOnClickListener(new OnClickListener() {

      public void onClick(View v) {

        mMainApplication.doAction(ACTION_EDIT_CARD);
      }
    });

    mImageButtonList = (ImageButton)getActivity().findViewById(R.id.imageButtonList);
    mImageButtonList.setOnClickListener(new OnClickListener() {

      public void onClick(View v) {

        mMainApplication.doAction(ACTION_SHOW_CARD_SETS, Boolean.TRUE);
      }
    });

    mImageViewPrevious = (ImageView)getActivity().findViewById(R.id.imageViewPrevious);

    mImageButtonNewCardSet = (ImageButton)getActivity().findViewById(R.id.imageButtonNewCardSet);
    mImageButtonNewCardSet.setOnClickListener(new OnClickListener() {

      public void onClick(View v) {

        AlertDialog.Builder builder = new AlertDialog.Builder(v.getContext());
        builder.setCancelable(false);

        LayoutInflater inflater = getLayoutInflater(savedInstanceState);
        View layout = inflater.inflate(R.layout.dialog, (ViewGroup) getActivity().findViewById(R.id.layout_root));
        final EditText editText = (EditText)layout.findViewById(R.id.editTextDialogAdd);

        builder.setView(layout);
        builder.setPositiveButton(R.string.new_card_set_save_button, new DialogInterface.OnClickListener() {

          public void onClick(DialogInterface dialog, int which) {

            String newTitle = editText.getText().toString().trim();

            if(null == newTitle || "".equals(newTitle)) {

              Toast.makeText(getActivity().getApplicationContext(), R.string.new_card_set_dialog_message_warning2, Toast.LENGTH_LONG).show();
            }
            else {

              boolean titleExists = false;
              List<CardSet> cardSets = mDataSource.getCardSets();
              
              for(CardSet cardSet : cardSets) {

                if(newTitle.equals(cardSet.getTitle())) {

                  titleExists = true;
                  break;
                }
              }

              if(titleExists) {

                Toast.makeText(getActivity().getApplicationContext(), R.string.new_card_set_dialog_message_warning1, Toast.LENGTH_LONG).show();
              }
              else {

                CardSet cardSet = mDataSource.createCardSet(newTitle);
                mMainApplication.doAction(ACTION_ADD_CARD_SET, cardSet);
              }
            }
          }
        });

        builder.setNegativeButton(R.string.new_card_set_cancel_button, new DialogInterface.OnClickListener() {

          public void onClick(DialogInterface dialog, int which) {

            dialog.cancel();
          }
        });

        AlertDialog alert = builder.create();
        alert.show();
      }
    });

    mImageButtonOverflow = (ImageButton)getActivity().findViewById(R.id.imageButtonOverflow);
    mImageButtonOverflow.setOnClickListener(new OnClickListener() {

      public void onClick(View v) {

        if(mListViewOverflow.getVisibility() == View.VISIBLE) {

          mListViewOverflow.setVisibility(View.GONE);
        }
        else {

          mListViewOverflow.setVisibility(View.VISIBLE);
        }
      }
    });

    mListViewOverflow = (ListView)getActivity().findViewById(R.id.listViewOverflow);
    mOverflowActions = new ArrayList<String>();
    mArrayAdapter = getArrayAdapter();
    mListViewOverflow.setAdapter(mArrayAdapter);

    /*
     * Now we configure the action bar for the associated fragment
     */
    configureFor(mFragmentType);
  }
  
  public void configureFor(int fragmentType) {
    
    if(View.VISIBLE == mListViewOverflow.getVisibility()) {
    
      mListViewOverflow.setVisibility(View.GONE);
    }
    
    switch(fragmentType) {

    case SETUP_FRAGMENT:
      configureForSetup();
      break;
    case LIST_FRAGMENT:
      configureForCardSets();
      break;
    case ADD_FRAGMENT:
      configureForAdd();
      break;
    case ABOUT_FRAGMENT:
      configureForAbout();
      break;
    case CARDS_FRAGMENT:
      configureForCards();
      break;
    }
  }
  
  private void configureForAdd() {

    mImageButtonEdit.setVisibility(View.GONE);
    mImageButtonNewCardSet.setVisibility(View.GONE);
    mImageButtonList.setVisibility(View.VISIBLE);
    mImageButtonOverflow.setVisibility(View.VISIBLE);
    mImageViewPrevious.setVisibility(View.VISIBLE);
    mImageButtonList.setEnabled(true);
    mFragmentType = ADD_FRAGMENT;
  }

  private void configureForCardSets() {

    mImageButtonEdit.setVisibility(View.GONE);
    mImageButtonNewCardSet.setVisibility(View.VISIBLE);
    mImageButtonList.setVisibility(View.VISIBLE);
    mImageButtonOverflow.setVisibility(View.VISIBLE);
    mImageViewPrevious.setVisibility(View.GONE);
    mImageButtonList.setEnabled(false);
    mFragmentType = LIST_FRAGMENT;
    mListViewOverflow.setOnItemClickListener(getCardSetsFragmentActionListener());
    setOverflowActions(getResources().getStringArray(R.array.card_set_actions));
  }

  private void configureForSetup() {

    mImageButtonEdit.setVisibility(View.GONE);
    mImageButtonNewCardSet.setVisibility(View.GONE);
    mImageButtonList.setVisibility(View.VISIBLE);
    mImageButtonOverflow.setVisibility(View.VISIBLE);
    mImageViewPrevious.setVisibility(View.VISIBLE);
    mImageButtonList.setEnabled(true);
    mFragmentType = SETUP_FRAGMENT;
    mListViewOverflow.setOnItemClickListener(getSetupFragmentActionListener());
    setOverflowActions(getResources().getStringArray(R.array.setup_actions));
  }

  private void configureForAbout() {

    mImageButtonEdit.setVisibility(View.GONE);
    mImageButtonNewCardSet.setVisibility(View.GONE);
    mImageButtonList.setVisibility(View.VISIBLE);
    mImageButtonOverflow.setVisibility(View.VISIBLE);
    mImageViewPrevious.setVisibility(View.VISIBLE);
    mImageButtonList.setEnabled(true);
    mFragmentType = ABOUT_FRAGMENT;
  }

  private void configureForCards() {

    mImageButtonEdit.setVisibility(View.VISIBLE);
    mImageButtonNewCardSet.setVisibility(View.GONE);
    mImageButtonList.setVisibility(View.VISIBLE);
    mImageButtonOverflow.setVisibility(View.VISIBLE);
    mImageViewPrevious.setVisibility(View.VISIBLE);
    mImageButtonList.setEnabled(true);
    mFragmentType = CARDS_FRAGMENT;
    mListViewOverflow.setOnItemClickListener(getCardFragmentActionListener());
    setOverflowActions(getResources().getStringArray(R.array.card_actions));
  }

  public void setFragmentType(int fragmentType) {

    this.mFragmentType = fragmentType;
  }
  
  public void doAction(Integer action, Object data) {

    switch(action) {
    
    case ACTION_SHOW_OVERFLOW_ACTIONS:
      toggleVisibility(mListViewOverflow);
      break;
    }
  }

  private ArrayAdapter<String> getArrayAdapter() {

    return new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, mOverflowActions) {

      @Override
      public View getView(int position, View convertView, ViewGroup parent) {

        View view = super.getView(position, convertView, parent);

        ((TextView)view).setTextColor(Color.WHITE);

        return view;
      }
    };
  }

  private OnItemClickListener getCardFragmentActionListener() {

    return new OnItemClickListener() {

      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        mListViewOverflow.setVisibility(View.GONE);

        switch(position) {

        case C_OVERFLOW_ACTION_ZOOM_IN:
          mMainApplication.doAction(ACTION_ZOOM_IN_CARD);
          break;

        case C_OVERFLOW_ACTION_ZOOM_OUT:
          mMainApplication.doAction(ACTION_ZOOM_OUT_CARD);
          break;

        case C_OVERFLOW_ACTION_CARD_INFO:
          mMainApplication.doAction(ACTION_SHOW_CARD_INFO);
          break;

        case C_OVERFLOW_ACTION_DELETE_CARD:
          mMainApplication.doAction(ACTION_DELETE_CARD);
          break;
      
        case C_OVERFLOW_ACTION_HELP_CARD:
          mMainApplication.doAction(ACTION_SHOW_HELP);
          break;
          
        case C_OVERFLOW_ACTION_RESHUFFLE:
          mMainApplication.doAction(ACTION_RESHUFFLE_CARDS);
          break;
        }
      }
    };
  }

  private OnItemClickListener getCardSetsFragmentActionListener() {

    return new OnItemClickListener() {

      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        mListViewOverflow.setVisibility(View.GONE);

        switch(position) {

        case CS_OVERFLOW_ACTION_SETUP:
          mMainApplication.doAction(ACTION_SHOW_SETUP);
          break;

        case CS_OVERFLOW_ACTION_ABOUT:
          mMainApplication.doAction(ACTION_SHOW_ABOUT);
          break;

        case CS_OVERFLOW_ACTION_FCE:
          mMainApplication.doAction(ACTION_GET_EXTERNAL_CARD_SETS);
          break;

        case CS_OVERFLOW_ACTION_HELP:
          mMainApplication.doAction(ACTION_SHOW_HELP);
          break;
        
        case CS_OVERFLOW_ACTION_SEND_FEEDBACK:
          mMainApplication.doAction(ACTION_SEND_FEEDBACK);
          break;
        }
      }
    };
  }
  
  private OnItemClickListener getSetupFragmentActionListener() {
    
    return new OnItemClickListener() {

      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        
        mListViewOverflow.setVisibility(View.GONE);

        switch(position) {

        case S_OVERFLOW_ACTION_ABOUT:
          mMainApplication.doAction(ACTION_SHOW_ABOUT);
          break;

        case S_OVERFLOW_ACTION_HELP:
          mMainApplication.doAction(ACTION_SHOW_HELP);
          break;
        
        case S_OVERFLOW_ACTION_SEND_FEEDBACK:
          mMainApplication.doAction(ACTION_SEND_FEEDBACK);
          break;
        }
      }
    };
  }

  private void setOverflowActions(String[] actions) {

    mOverflowActions.clear();

    for(String action : actions) {

      mOverflowActions.add(action);
    }

    mArrayAdapter.notifyDataSetChanged();
  }


  private void toggleVisibility(View view) {
    
    if(View.VISIBLE == view.getVisibility()) {
      
      view.setVisibility(View.GONE);
    }
    else {
      
      view.setVisibility(View.VISIBLE);
    }
  }
}
Java Source Code List
