Android Open Source - PactrackDroid Parcel List Fragment

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Back to project page PactrackDroid.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (C) 2014 Joakim Andersson// w  w  w.  j  a  v a2  s .  c  om
 * Copyright (C) 2014 blunden
 * 
 * This file is part of PactrackDroid, an Android application to keep
 * track of parcels sent with the Swedish mail service (Posten).
 * 
 * PactrackDroid 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.
 * 
 * PactrackDroid 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 this program. If not, see <http://www.gnu.org/licenses/>.
 */

package nu.firetech.android.pactrack.frontend;

import nu.firetech.android.pactrack.R;
import nu.firetech.android.pactrack.backend.ParcelDbAdapter;
import nu.firetech.android.pactrack.backend.ParcelUpdater;
import nu.firetech.android.pactrack.backend.Preferences;
import nu.firetech.android.pactrack.backend.ServiceStarter;
import nu.firetech.android.pactrack.common.RefreshContext;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.ListFragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public class ParcelListFragment extends ListFragment implements
    RefreshContext, AutoUpdateIconContext, LoaderManager.LoaderCallbacks<Cursor> {
  private static final int PARCELS_LOADER_ID = 0;

  private static String sAboutMessage = null;

  private ParcelDbAdapter mDbAdapter;
  private AlertDialog mAboutDialog;
  private SimpleCursorAdapter mAdapter;
  private ParentActivity mParent;
  private Long mSelectedId = null;

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.parcel_list, container, false);
    
    Context context = view.getContext();

    if (sAboutMessage == null) {
      String spacer = "\n\n";

      String versionName = "Huh?";
      try {
        versionName = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionName;
      } catch (NameNotFoundException e) {}

      sAboutMessage = new StringBuilder(getString(R.string.app_name))
      .append(" - ")
      .append(versionName)
      .append(spacer)
      .append("Copyright (C) 2014 Joakim Andersson")
      .append("\n")
      .append("Copyright (C) 2014 blunden")
      .append(spacer)
      .append("This program comes with ABSOLUTELY NO WARRANTY.\nThis is free software, licensed under the GNU General Public License; version 2.")
      .toString();
    }
    
    mAboutDialog = new AlertDialog.Builder(context)
    .setTitle(R.string.menu_about)
    .setMessage(sAboutMessage)
    .setPositiveButton(R.string.ok, new OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        dialog.dismiss();
      }
    })
    .setNegativeButton(R.string.go_homepage, new OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.home_page)))
        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
      }
    })
    .create();
    
    String[] from = new String[]{ParcelDbAdapter.KEY_CUSTOM, ParcelDbAdapter.KEY_CUSTOMER, ParcelDbAdapter.KEY_STATUSCODE};
    int[] to = new int[]{android.R.id.text1, android.R.id.text2, android.R.id.icon};

    final Preferences prefs = Preferences.getPreferences(context);
    
    mAdapter = new SimpleCursorAdapter(context, R.layout.parcel_row, null, from, to, 0);
    mAdapter.setViewBinder(new SimpleCursorAdapter.ViewBinder() {
      @Override
      public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
        if (view instanceof ImageView && view.getId() == android.R.id.icon) {
          ((ImageView)view).setImageResource(UICommon.getStatusImage(cursor, columnIndex));
          if (prefs.getCheckInterval() == 0 ||
              cursor.getInt(cursor.getColumnIndexOrThrow(ParcelDbAdapter.KEY_AUTO)) == 1) {
            ((ImageView)view).getDrawable().mutate().setAlpha(255);
          } else {
            ((ImageView)view).getDrawable().mutate().setAlpha(70);
          }
          return true;
        } else {
          return false;
        }
      }
    });
    setListAdapter(mAdapter);
    
    setRetainInstance(true);
    setHasOptionsMenu(true);
    
    return view;
  }
  
  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
      registerForContextMenu(getListView());
  }
  
    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

    mDbAdapter = new ParcelDbAdapter(activity);
    mDbAdapter.open();

        try {
            mParent = (ParentActivity) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + " must implement ParentActivity");
        }
    }
  
    @Override
    public void onDetach() {
        super.onDetach();
    mDbAdapter.close();
    }

    @Override
    public void onStart() {
        super.onStart();

        // When in two-pane layout, set to highlight the selected list item
        if (getFragmentManager().findFragmentById(R.id.list_frag) != null) {
            getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
        }
    }

  @Override
  public void onResume() {
    super.onResume();
    refreshDone();
        mParent.onListResume();
  }

  @Override
  public Handler startRefreshProgress(int maxValue) {
    return RefreshDialog.show(getActivity(), maxValue);
  }

  @Override
  public void refreshDone() {
    LoaderManager lm = getLoaderManager();
    if (lm.getLoader(PARCELS_LOADER_ID) == null) {
      lm.initLoader(PARCELS_LOADER_ID, null, this);
    } else {
      lm.restartLoader(PARCELS_LOADER_ID, null, this);
    }
  }

  @Override
  public boolean showsNews() {
    return false;
  }
  
  public void selectRowItem(Long rowId) {
    mSelectedId = rowId;
    
    if (rowId != null) {
      for (int i = 0; i < mAdapter.getCount(); i++) {
        if (rowId == mAdapter.getItemId(i)) {
          getListView().setItemChecked(i, true);
          return;
        }
      }
    }
    
    //No match
    getListView().setItemChecked(getListView().getCheckedItemPosition(), false);
  }

  @Override
  public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    super.onCreateOptionsMenu(menu, inflater);
    inflater.inflate(R.menu.main_menu, menu);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch(item.getItemId()) {
    case R.id.action_about:
      mAboutDialog.show();
      return true;
    case R.id.action_add_parcel:
      ParcelIdDialog.create(getFragmentManager(), null);
      return true;
    case R.id.action_refresh_all:
      //Defer automatic update at least another half interval
      if (ServiceStarter.getCurrentInterval() > 0) {
        ServiceStarter.startService(getActivity(), mDbAdapter);
      }
      ParcelUpdater.updateAll(false, this, mDbAdapter);
      return true;
    case R.id.action_settings:
      Intent intent = new Intent(getActivity(), ConfigView.class);
      startActivity(intent);
      return true;
    }

    return super.onOptionsItemSelected(item);
  }

  @Override
  public void onCreateContextMenu(ContextMenu menu, View v,
      ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    MenuInflater inflater = getActivity().getMenuInflater();
    inflater.inflate(R.menu.parcel_menu, menu);
    
    AdapterContextMenuInfo info = (AdapterContextMenuInfo)menuInfo;
    
    boolean enabled = (Preferences.getPreferences(getActivity()).getCheckInterval() > 0);
    MenuItem autoInclude = menu.findItem(R.id.action_auto_include);
    autoInclude.setEnabled(enabled);
    autoInclude.setChecked(enabled && mDbAdapter.getAutoUpdate(info.id));
  }

  @Override
  public boolean onContextItemSelected(MenuItem item) {
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
    switch(item.getItemId()) {
    case R.id.action_delete:
      UICommon.deleteParcel(info.id, getActivity(), mDbAdapter, new Runnable() {
        @Override
        public void run() {
          refreshDone();
        }
      });
      return true;
    case R.id.action_edit:
      ParcelIdDialog.create(getFragmentManager(), info.id);
      return true;
    case R.id.action_auto_include:
      mDbAdapter.setAutoUpdate(info.id, !item.isChecked());
      mParent.onAutoUpdateChanged(info.id, !item.isChecked());
      return true;
    case R.id.action_refresh:
      mParent.showParcel(info.id, true);
      return true;
    }
    
    return super.onContextItemSelected(item);
  }

  @Override
  public void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);
    
    mParent.showParcel(id, false);
  }

  @Override
  public void onActivityResult(int requestCode, int resultCode, 
      Intent intent) {
    super.onActivityResult(requestCode, resultCode, intent);
    refreshDone();
  }

  ////////////////////////////////////////////////////////////////////////////////

  @Override
  public void onAutoUpdateChanged(long rowId, boolean value) {
    refreshDone();
  }

  ////////////////////////////////////////////////////////////////////////////////

  @Override
  public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    switch (id) {
    case PARCELS_LOADER_ID:
      return mDbAdapter.getAllParcelsLoader(false);
    }
    return null;
  }

  @Override
  public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
    switch (loader.getId()) {
    case PARCELS_LOADER_ID:
      mAdapter.swapCursor(cursor);
      selectRowItem(mSelectedId);
      break;
    }
  }

  @Override
  public void onLoaderReset(Loader<Cursor> loader) {
    switch (loader.getId()) {
    case PARCELS_LOADER_ID:
      mAdapter.swapCursor(null);
      break;
    }
  }

  ////////////////////////////////////////////////////////////////////////////////
  
  public interface ParentActivity {
        public void showParcel(long rowId, boolean forceRefresh);
        public void onListResume();
        public void onAutoUpdateChanged(long rowId, boolean value);
    }
  
}

Java Source Code List

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