Android Open Source - opensudoku File List Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/* 
 * Copyright (C) 2010 Vit Hnilica//from  ww w  .ja v a 2  s . c  om
 * 
 * This file is part of OpenSudoku.
 * 
 * OpenSudoku 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 3 of the License, or
 * (at your option) any later version.
 * 
 * OpenSudoku 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 OpenSudoku.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package org.moire.opensudoku.gui;

import java.io.File;
import java.io.FileFilter;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ListActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.SimpleAdapter.ViewBinder;
import android.widget.TextView;
import org.moire.opensudoku.R;

/**
 * List folders.
 *
 * @author dracula
 */
public class FileListActivity extends ListActivity {
  private static final int DIALOG_IMPORT_FILE = 0;

  public static final String EXTRA_FOLDER_NAME = "FOLDER_NAME";

  public static final String ITEM_KEY_FILE = "file";
  public static final String ITEM_KEY_NAME = "name";
  public static final String ITEM_KEY_DETAIL = "detail";

  // input parameters for dialogs
  private String mDirectory;
  private File mSelectedFile;
  private List<Map<String, Object>> mList;
  private Context mContext = this;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.file_list);

    setDefaultKeyMode(DEFAULT_KEYS_SHORTCUT);
    // Inform the list we provide context menus for items
    getListView().setOnCreateContextMenuListener(this);

    Intent intent = getIntent();
    String mDirectory = intent.getStringExtra(EXTRA_FOLDER_NAME);
    File selected_dir = new File(mDirectory);

    File[] dirs = selected_dir.listFiles(new FileFilter() {
      @Override
      public boolean accept(File pathname) {
        return pathname.isDirectory() && !pathname.isHidden() && pathname.canRead();
      }
    });

    File[] files = selected_dir.listFiles(new FileFilter() {
      @Override
      public boolean accept(File pathname) {
        return pathname.isFile() && !pathname.isHidden() && pathname.canRead() && (pathname.getName().endsWith(".opensudoku") || pathname.getName().endsWith(".sdm"));
      }
    });

    Arrays.sort(dirs);
    Arrays.sort(files);

    mList = new ArrayList<Map<String, Object>>();
    if (selected_dir.getParentFile() != null) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put(ITEM_KEY_FILE, selected_dir.getParentFile());
      map.put(ITEM_KEY_NAME, "build/source/rs");
      mList.add(map);
    }
    for (File f : dirs) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put(ITEM_KEY_FILE, f);
      map.put(ITEM_KEY_NAME, f.getName());
      mList.add(map);
    }
    DateFormat dateFormat = android.text.format.DateFormat.getDateFormat(this);
    DateFormat timeFormat = android.text.format.DateFormat.getTimeFormat(this);
    for (File f : files) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put(ITEM_KEY_FILE, f);
      map.put(ITEM_KEY_NAME, f.getName());
      Date date = new Date(f.lastModified());
      map.put(ITEM_KEY_DETAIL, dateFormat.format(date) + " " + timeFormat.format(date));
      mList.add(map);
    }
    String[] from = {ITEM_KEY_NAME, ITEM_KEY_DETAIL};
    int[] to = {R.id.name, R.id.detail};

    SimpleAdapter adapter = new SimpleAdapter(this, (List<? extends Map<String, ?>>) mList, R.layout.folder_list_item, from, to);
    adapter.setViewBinder(new FileListViewBinder());
    setListAdapter(adapter);
  }

  @Override
  protected void onStart() {
    super.onStart();
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
  }

  @Override
  protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);

    outState.putString("mDirectory", mDirectory);
  }

  @Override
  protected void onRestoreInstanceState(Bundle state) {
    super.onRestoreInstanceState(state);

    mDirectory = state.getString("mDirectory");
  }

  @Override
  protected Dialog onCreateDialog(final int id) {
    LayoutInflater.from(this);
    switch (id) {
      case DIALOG_IMPORT_FILE:
        return new AlertDialog.Builder(this)
            .setIcon(android.R.drawable.ic_menu_upload)
            .setTitle(R.string.import_file)
            .setPositiveButton(R.string.import_file, new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog, int whichButton) {
                //importovani
                File f = mSelectedFile;
                Intent i = new Intent(mContext, ImportSudokuActivity.class);
                Uri u = Uri.fromFile(f);
                i.setData(u);
                startActivity(i);
                //finish();
              }
            })
            .setNegativeButton(android.R.string.cancel, null)
            .create();
    }

    return null;
  }

  @Override
  protected void onPrepareDialog(int id, Dialog dialog) {
    super.onPrepareDialog(id, dialog);

    switch (id) {
      case DIALOG_IMPORT_FILE:
        dialog.setTitle(getString(R.string.import_file_title, mSelectedFile.getName()));
        break;
    }
  }

  @Override
  protected void onListItemClick(ListView l, View v, int position, long id) {
    File f = (File) (mList.get((int) id).get(ITEM_KEY_FILE));
    if (f.isFile()) {
      mSelectedFile = f;
      showDialog(DIALOG_IMPORT_FILE);
    } else if (f.isDirectory()) {
      Intent intent = new Intent();
      intent.setClass(this, FileListActivity.class);
      intent.putExtra(FileListActivity.EXTRA_FOLDER_NAME, f.getAbsolutePath());
      startActivity(intent);
      //finish();
    }
  }

  private static class FileListViewBinder implements ViewBinder {

    @Override
    public boolean setViewValue(View view, Object data,
                  String textRepresentation) {
      switch (view.getId()) {
        case R.id.detail:
          if (data == null) {
            final TextView detailView = (TextView) view;
            detailView.setVisibility(View.INVISIBLE);
            return true;
          }
      }
      return false;
    }

  }

}

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