Android Open Source - openhds-tablet Value Form Fragment

• Back to Development/data  ↑

From Project

Back to project page openhds-tablet.

License

The source code is released under:

OPENHDS PLATFORM OPENSOURCE LICENSE AGREEMENT Copyright (c) 2013 University of Southern Maine. All rights reserved. Redistribution and use in source and binary forms, with or without mo...

Java Source Code

package org.openhds.mobile.fragment;
//from w  w  w.  jav a2s . com


import org.openhds.mobile.Converter;
import org.openhds.mobile.OpenHDS;
import org.openhds.mobile.R;
import org.openhds.mobile.model.Form;
import org.openhds.mobile.model.LocationVisit;


import android.app.Activity;
import android.app.ListFragment;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.text.TextUtils;

import android.view.View;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

/**
 * ValueFormFragment is responsible for showing a list of forms, and then
 * notifying the activity using this fragment which entity has been selected.
 */
public class ValueFormFragment extends ListFragment implements LoaderCallbacks<Cursor> {


   private static final int FORM_LOADER = 6;

   // create the column mappings so they don't need to be recreated on every
   // load
    private static final String[] HIERARCHY_COLUMNS = new String[] { OpenHDS.HierarchyItems.COLUMN_HIERARCHY_NAME,
           OpenHDS.HierarchyItems.COLUMN_HIERARCHY_EXTID};

   private static final String[] FORM_COLUMNS = new String[] { OpenHDS.Forms.COLUMN_FORM_NAME};

   private static final int[] VIEW_BINDINGS = new int[] { android.R.id.text1};

   private SimpleCursorAdapter adapter;

   // since this fragment displays different types of entities, it needs to
   // keep track of which one is currently showing
   private Displayed listCurrentlyDisplayed;
   private ValueListener listener;

   private enum Displayed {
       FORM;
   }

   public interface ValueListener {
         void onFormSelected(Form form);
   }

   @Override
   public void onAttach(Activity activity) {
       super.onAttach(activity);

       try {
           listener = (ValueListener) activity;
       } catch (ClassCastException e) {
           throw new ClassCastException(activity.toString() + " must implement OnArticleSelectedListener");
       }

       adapter = new SimpleCursorAdapter(getActivity(), R.layout.list_item, null, HIERARCHY_COLUMNS,
               VIEW_BINDINGS, 0);
       setListAdapter(adapter);
   }

   @Override
   public void onListItemClick(ListView l, View v, int position, long id) {
       Cursor cursor = (Cursor) adapter.getItem(position);

       switch (listCurrentlyDisplayed) {
       case FORM:
           Form form = Converter.toForms(cursor);
           listener.onFormSelected(form);
           break;
       }

       adapter.swapCursor(null);
   }


   public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
       switch (arg0) {

       case FORM_LOADER:
           adapter.changeCursorAndColumns(null, FORM_COLUMNS, VIEW_BINDINGS);
           return buildFormCursorLoader(arg1);        
       }

       return null;
   }

   private Loader<Cursor> buildFormCursorLoader(Bundle arg1) {
       if (TextUtils.isEmpty(arg1.getString("name"))) {
           return buildCursorLoader(OpenHDS.Forms.CONTENT_ID_URI_BASE, OpenHDS.Forms.COLUMN_FORM_GENDER +"='All' OR "+OpenHDS.Forms.COLUMN_FORM_GENDER + " = ?",  new String[] {  arg1.getString("gender")});
       } else {
           return buildCursorLoader(OpenHDS.Forms.CONTENT_ID_URI_BASE,"("+OpenHDS.Forms.COLUMN_FORM_GENDER +"='All' OR "+OpenHDS.Forms.COLUMN_FORM_GENDER +"='"+ arg1.getString("gender") + "') and " + OpenHDS.Forms.COLUMN_FORM_NAME
                   + " like ?", new String[] {  arg1.getString("name")  /*+ "%"*/});
      }
   }


   private Loader<Cursor> buildCursorLoader(Uri uri, String where, String[] args) {
       return new CursorLoader(getActivity(), uri, null, where, args, null);
   }

   public void onLoadFinished(Loader<Cursor> arg0, Cursor arg1) {
       adapter.swapCursor(arg1);
   }

   public void onLoaderReset(Loader<Cursor> arg0) {
       adapter.swapCursor(null);
   }

 
   /**
    * Loads a list of Forms that are filtered by the arguments
    * 
    * @param location
    *            the location id to filter, or null to ignore filtering on
    *            location
    */
   public void loadFilteredForms(String formName, LocationVisit location) {
       listCurrentlyDisplayed = Displayed.FORM;
       Bundle bundle = new Bundle();
       bundle.putString("name", formName);
       bundle.putString("gender", location.getSelectedIndividual().getGender());
       getLoaderManager().restartLoader(FORM_LOADER, bundle, this);
   }

}

Java Source Code List

• Back to Development/data  ↑