AllProjectsActivitiesActivity.java

package com.realtrackandroid.views.projectsactivities;

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

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.View;
import android.widget.ExpandableListView;

import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
import com.actionbarsherlock.widget.SearchView;
import com.realtrackandroid.R;
import com.realtrackandroid.backend.activities.ActivitiesDAO;
import com.realtrackandroid.backend.projects.ProjectDAO;
import com.realtrackandroid.models.activities.Activities;
import com.realtrackandroid.models.projects.Project;
import com.realtrackandroid.views.help.FrameworkInfoDialog;
import com.realtrackandroid.views.help.GlossaryDialog;
import com.realtrackandroid.views.help.HelpDialog;
import com.realtrackandroid.views.projects.AddProjectActivity;

/*
 * Presents an activity that lists all the projects in the app's database
 * Pressing the back key will exit the activity and take you back to the home screen (WelcomeActivity)
 */
public class AllProjectsActivitiesActivity extends SherlockFragmentActivity {
  protected ExpandableListView projectsActivitiesListView; // holds a list of the projects

  List<ProjectsActivitiesHolder> projectsactivities_data, filteredprojectsactivities_data;

  private ProjectsActivitiesListAdapter projectsActivitiesListAdapter;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_allprojectsactivities);
  }

  @Override
  public void onResume() {
    super.onResume();
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    projectsActivitiesListView = (ExpandableListView) findViewById(R.id.projectsactivitieslistView);
    filteredprojectsactivities_data = new ArrayList<ProjectsActivitiesHolder>(); // used for
                                                                                 // filtered data

    createAllProjectsActivitiesList();
  }

  // create actionbar menu
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getSupportMenuInflater();
    inflater.inflate(R.menu.allprojectsmenu, menu);

    // used to filter the projects list as the user types or when he submits the query
    SearchView.OnQueryTextListener queryTextListener = new SearchView.OnQueryTextListener() {
      @Override
      public boolean onQueryTextSubmit(String query) {
        createFilteredProjectsActivitiesList(query);
        return false;
      }

      @Override
      public boolean onQueryTextChange(String newText) {
        createFilteredProjectsActivitiesList(newText);
        return false;
      }
    };

    // set the text listener for the Search field
    SearchView searchView = (SearchView) menu.findItem(R.id.action_search).getActionView();
    searchView.setOnQueryTextListener(queryTextListener);

    final MenuItem addProject = menu.findItem(R.id.action_addproject);

    // hide the add button when the search view is expanded
    final Menu m = menu;
    searchView.setOnSearchClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        if (m != null)
          addProject.setVisible(false);
      }
    });
    searchView.setOnCloseListener(new SearchView.OnCloseListener() {
      @Override
      public boolean onClose() {
        supportInvalidateOptionsMenu(); // this is needed because Android doesn't remember the Add
                                        // icon and changes it back
        // to the Settings icon when the Search view is closed
        if (m != null)
          addProject.setVisible(true);
        return false;
      }
    });

    getSupportActionBar().setDisplayShowTitleEnabled(true);
    return true;
  }

  /**
   * ***********************************************************************************************
   * ******************* transition to view for adding new project when the add icon in the action
   * bar is clicked
   * *********************************************************************************
   * *********************************
   */
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
      case android.R.id.home:
        // provide a back button on the actionbar
        finish();
        break;
      case R.id.action_addproject:
        Intent intent = new Intent(this, AddProjectActivity.class);
        startActivity(intent);
        overridePendingTransition(R.anim.animation_slideinright, R.anim.animation_slideoutleft);
        break;
      case R.id.action_help:
        HelpDialog helpDialog = new HelpDialog();
        helpDialog.setStyle(DialogFragment.STYLE_NO_TITLE, 0);
        helpDialog.show(getSupportFragmentManager(), "helpdialog");
        break;
      case R.id.action_framework:
        FrameworkInfoDialog frameworkInfoDialog = new FrameworkInfoDialog();
        frameworkInfoDialog.setStyle(DialogFragment.STYLE_NO_TITLE, 0);
        frameworkInfoDialog.show(getSupportFragmentManager(), "frameworkinfodialog");
        break;
      case R.id.action_glossary:
        GlossaryDialog glossaryDialog = new GlossaryDialog();
        glossaryDialog.setStyle(DialogFragment.STYLE_NO_TITLE, 0);
        glossaryDialog.show(getSupportFragmentManager(), "glossarydialog");
        break;
      default:
        return super.onOptionsItemSelected(item);
    }

    return true;
  }

  /**
   * ***********************************************************************************************
   * ******************* check whether the string passed in is present in any of the projects in our
   * list called by queryTextListener
   * ***************************************************************
   * ***************************************************
   */
  void createFilteredProjectsActivitiesList(String text) {
    filteredprojectsactivities_data.clear();
    for (int i = 0; i < projectsactivities_data.size(); i++) {
      if (projectsactivities_data.get(i).getProject().getTitle().toLowerCase()
              .matches(".*" + text.toLowerCase() + ".*")) {
        filteredprojectsactivities_data.add(projectsactivities_data.get(i));
      }
    }

    updateProjectsActivitiesList(filteredprojectsactivities_data);
  }

  /**
   * ***********************************************************************************************
   * ******************* populate the projects list list style defined in layout/row_allprojects.xml
   * Source: http://www.ezzylearning.com/tutorial.aspx?tid=1763429
   * **********************************
   * ********************************************************************************
   */
  void createAllProjectsActivitiesList() {
    ProjectDAO pDao = new ProjectDAO(getApplicationContext());
    ActivitiesDAO aDao = new ActivitiesDAO(getApplicationContext());
    ArrayList<Project> projects_data = pDao.getAllProjects();
    projectsactivities_data = new ArrayList<ProjectsActivitiesHolder>();

    for (Project p : projects_data) {
      ProjectsActivitiesHolder paHolder = new ProjectsActivitiesHolder();
      paHolder.setProject(p);
      List<Activities> activitiesList = aDao.getAllActivitiesForProjectId(p.getId());

      Activities addNewActivityDummy = new Activities();
      addNewActivityDummy.setTitle(getResources().getString(R.string.newrepeating) + " "
              + p.getTitle() + " " + getResources().getString(R.string.activityellipses));
      addNewActivityDummy.setId(-1);
      addNewActivityDummy.setProjectid(p.getId());
      activitiesList.add(addNewActivityDummy);
      paHolder.setActivitiesList(activitiesList);
      projectsactivities_data.add(paHolder);
    }

    ProjectsActivitiesHolder paHolder = new ProjectsActivitiesHolder();
    Project p = new Project();
    p.setId(-1);
    if (projects_data.isEmpty())
      p.setTitle(getResources().getString(R.string.addyourprimaryproject));
    else
      p.setTitle(getResources().getString(R.string.addasecondaryproject));
    paHolder.setProject(p);
    paHolder.setActivitiesList(new ArrayList<Activities>());
    projectsactivities_data.add(paHolder);

    updateProjectsActivitiesList(projectsactivities_data);
  }

  private void updateProjectsActivitiesList(List<ProjectsActivitiesHolder> projectsactivities_data) {
    projectsActivitiesListAdapter = new ProjectsActivitiesListAdapter(this,
            R.layout.row_allprojects, R.layout.row_allactivities, projectsActivitiesListView,
            projectsactivities_data);
    projectsActivitiesListAdapter.setInflater((getLayoutInflater()));
    projectsActivitiesListView.setAdapter(projectsActivitiesListAdapter);

    // make sure all groups are expanded by default
    for (int i = 0; i < projectsactivities_data.size(); i++) {
      projectsActivitiesListView.expandGroup(i);
    }

    // hide default arrow group indicator because we will provide our own
    projectsActivitiesListView.setGroupIndicator(null);
  }

  @Override
  public void onBackPressed() {
    super.onBackPressed();
    overridePendingTransition(R.anim.animation_slideinleft, R.anim.animation_slideoutright);
    finish();
  }
}