Android Open Source - commande-godo Main Activity

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License

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

package ca.ualberta.commande.android.commande_godo;
/*from w ww  .j  av a  2s  .  c om*/
import java.util.ArrayList;
import java.util.List;

import android.app.ListActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ListView;
import android.widget.RelativeLayout;
import ca.ualberta.commande.android.commande_godo.data.TodoItem;
import ca.ualberta.commande.android.commande_godo.data.TodosDataSource;

public class MainActivity extends ListActivity {

  private static final int NEW_TODO_REQUEST_CODE = 100;
  private static final int DISPLAY_ACTIVE = 1;
  private static final int DISPLAY_ARCHIVED = 2;
  private static final int SELECT_MODE_ON = 1;
  private static final int SELECT_MODE_OFF = 0;

  private TodosDataSource datasource;
  private TodoAdapter adapter;
  private List<TodoItem> displayTodos;
  private int displayMode = DISPLAY_ACTIVE;
  private int selectMode = SELECT_MODE_OFF;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    datasource = new TodosDataSource(this);

    // set the adapter and display todos
    displayActiveTodos();

  }

  public void displayDisplayedTodos() {
    switch (displayMode) {
    case DISPLAY_ACTIVE:
      displayActiveTodos();
      break;

    case DISPLAY_ARCHIVED:
      displayArchivedTodos();
      break;

    default:
      break;
    }
  }

  public void displayActiveTodos() {
    displayMode = DISPLAY_ACTIVE;
    displayTodos = getDisplayTodos(displayMode);
    
    // API referenced from 
    // http://developer.android.com/reference/android/app/ListActivity.html
    adapter = new TodoAdapter(this, R.layout.item_todo, displayTodos);
    setListAdapter(adapter);
    setTitle("GoDo - Inbox");
  }

  public void displayArchivedTodos() {
    displayMode = DISPLAY_ARCHIVED;
    displayTodos = getDisplayTodos(displayMode);
    
    // API referenced from 
    // http://developer.android.com/reference/android/app/ListActivity.html
    adapter = new TodoAdapter(this, R.layout.item_todo, displayTodos);
    setListAdapter(adapter);
    setTitle("GoDo - Archive");
  }

  public List<TodoItem> getDisplayTodos(int displayMode) {
    List<TodoItem> newDisplayTodos = new ArrayList<TodoItem>();

    switch (displayMode) {
    case DISPLAY_ACTIVE:
      for (TodoItem todo : datasource.todos) {
        if (!todo.isArchived()) {
          newDisplayTodos.add(todo);
        }
      }
      return newDisplayTodos;

    case DISPLAY_ARCHIVED:
      for (TodoItem todo : datasource.todos) {
        if (todo.isArchived()) {
          newDisplayTodos.add(todo);
        }
      }
      return newDisplayTodos;

    default:
      return datasource.todos;
    }

  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_displayarchived) {
      displayMode = DISPLAY_ARCHIVED;
      displayDisplayedTodos();
      selectMode = SELECT_MODE_OFF;
    }
    if (id == R.id.action_displayactive) {
      displayMode = DISPLAY_ACTIVE;
      displayDisplayedTodos();
      selectMode = SELECT_MODE_OFF;
    }
    if (id == R.id.action_emailall) { 
      selectMode = SELECT_MODE_OFF;

      //Next 4 lines referenced from user doraemon
      //http://stackoverflow.com/questions/8701634/send-email-intent
      //Sept 17, 2014
 
      Intent emailIntent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts(
                "mailto","", null));
      emailIntent.putExtra(Intent.EXTRA_SUBJECT, TodoEmailer.generateSubject(datasource.todos));
      emailIntent.putExtra(Intent.EXTRA_TEXT, TodoEmailer.generateBody(datasource.todos));
      startActivity(Intent.createChooser(emailIntent, "Email All Todos"));
    }
    if (id == R.id.action_summary) {
      Intent intent = new Intent(this, SummaryActivity.class);
      intent.putExtra("tic", datasource.getStat("tic"));
      intent.putExtra("tiu", datasource.getStat("tiu"));
      intent.putExtra("tia", datasource.getStat("tia"));
      intent.putExtra("aic", datasource.getStat("aic"));
      intent.putExtra("aiu", datasource.getStat("aiu"));
      startActivity(intent);
    }
    return super.onOptionsItemSelected(item);
  }

  public void showNewTodoActivity(View v) {
    // Method of starting and returning from secondary activity
    // referenced from tutorial by David Gassner
    // http://www.lynda.com/Android-tutorials/Finishing-returning-from-secondary-activity/143102/158809-4.html
    // Sept 15, 2014
    Intent intent = new Intent(this, NewTodoActivity.class);
    startActivityForResult(intent, NEW_TODO_REQUEST_CODE);
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    // Respond to return from new todo creation
    if (requestCode == NEW_TODO_REQUEST_CODE && resultCode == RESULT_OK) {

      // Get new todo item information and add to todolist.
      String todoTitle = data.getStringExtra("todoTitle");
      TodoItem newTodo = TodoItem.getNew(todoTitle);

      // Save new todo to disk and update the view
      datasource.todos.add(newTodo);
      datasource.saveTodos();

      // Update the view
      displayActiveTodos();
      
    }
  }

  public void showSelectTodoActivity(View v) {
    // change bottom action bar contents to show select options
    
    // add select-mode bar on top of bottom action bar
    // Next 2 lines referenced from user Thomas Ahle
    // http://stackoverflow.com/questions/3995215/add-and-remove-views-in-android-dynamically,
    // Sept 15, 2014
    RelativeLayout bottomActionBar = (RelativeLayout) findViewById(R.id.bottom_action_bar);
    RelativeLayout parentView = (RelativeLayout) bottomActionBar
        .getParent();

    if (displayMode == DISPLAY_ACTIVE) {
      // Next line referenced fom user dan k
      // http://stackoverflow.com/questions/3142067/android-set-style-in-code,
      // Sept 15, 2014
      getLayoutInflater().inflate(R.layout.item_selectactionbar,
          parentView);
    } else if (displayMode == DISPLAY_ARCHIVED) {
      getLayoutInflater().inflate(R.layout.item_selectactionbararchived,
          parentView);
    }

    // Switch to select mode
    selectMode = SELECT_MODE_ON;
  }

  public void selectAllTodos(View v) {
    for (TodoItem todo : displayTodos) {
      todo.setSelected(true);
    }
    adapter.notifyDataSetChanged();
  }

  public void cancelSelect(View v) {

    // Remove the select action bar from the view and turn off select mode
    // Next 3 lines of API referenced fom user dan k
    // http://stackoverflow.com/questions/3142067/android-set-style-in-code,
    // Sept 15, 2014
    RelativeLayout selectActionBar = (RelativeLayout) findViewById(R.id.select_action_bar);
    RelativeLayout parentView = (RelativeLayout) selectActionBar.getParent();
    parentView.removeView(selectActionBar);
    selectMode = SELECT_MODE_OFF;

    // clear the selections and update the view
    for (TodoItem todo : displayTodos) {
      todo.setSelected(false);
    }
    displayDisplayedTodos();
  }

  public void archiveSelectedTodos(View v) {
    // for each todo shown, set its archived status then turn off select
    // mode.
    for (TodoItem todo : displayTodos) {
      if (todo.isSelected()) {
        todo.setArchived(true);
        datasource.update(todo);
      }
    }

    cancelSelect(v);
  }

  public void unarchiveSelectedTodos(View v) {
    // for each todo shown, set its archived status then turn off select
    // mode.
    for (TodoItem todo : displayTodos) {
      if (todo.isSelected()) {
        todo.setArchived(false);
        datasource.update(todo);
      }
    }
    cancelSelect(v);
  }

  public void deleteSelectedTodos(View v) {
    TodoItem todo;
    int s = displayTodos.size();
    for (int i = 0; i < s; i++) {
      todo = displayTodos.get(i);
      if (todo.isSelected()) {
        datasource.remove(todo);
      }
    }
    cancelSelect(v);
  }
  
  public void emailSelectedTodos(View v) {

    List<TodoItem> emailTodos = new ArrayList<TodoItem>();
    for (TodoItem todo : displayTodos) {
      if (todo.isSelected()) {
        emailTodos.add(todo);
      }
    }
    
    
    //Next 4 lines referenced from user doraemon
    //http://stackoverflow.com/questions/8701634/send-email-intent
    //Sept 17, 2014
    Intent emailIntent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts(
              "mailto","", null));
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, TodoEmailer.generateSubject(emailTodos));
    emailIntent.putExtra(Intent.EXTRA_TEXT, TodoEmailer.generateBody(emailTodos));
    startActivity(Intent.createChooser(emailIntent, "Email Selected Todos"));
  }

  @Override
  protected void onListItemClick(ListView l, View v, int pos, long id) {
    super.onListItemClick(l, v, pos, id);

    TodoItem updatedTodo = displayTodos.get(pos);

    switch (selectMode) {
    case SELECT_MODE_ON:
      updatedTodo.toggleSelected();
      adapter.notifyDataSetChanged();
      break;

    case SELECT_MODE_OFF:
      // When user clicks a todo, toggle its completed status and updatethe view
      updatedTodo.toggleCompleted();
      datasource.update(updatedTodo);
      adapter.notifyDataSetChanged();
      break;

    default:
      break;
    }

  }
}
Java Source Code List
