Android Open Source - syncarnet Task List Adapter

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Back to project page syncarnet.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (C) 2013-14 Nicolas Miller, Florian Paindorge
 *//  w  w w  .  j a  v  a 2  s.co  m
 * This program 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.
 *
 * This program 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 fr.syncarnet;

import fr.syncarnet.tasks.*;

import android.content.Context;

import android.view.View;
import android.view.ViewGroup;
import android.view.LayoutInflater;

import android.widget.Filter;
import android.widget.TextView;
import android.widget.ImageView;
import android.widget.Filterable;
import android.widget.BaseAdapter;

public class TaskListAdapter extends BaseAdapter implements Filterable {
  private TaskList tasks;
  private TaskList origTasks;
  private LayoutInflater inflater;
  private ProjectsAdapter projects;

  public TaskListAdapter(Context context, TaskList tasks) {
    inflater = LayoutInflater.from(context);
    this.tasks = tasks;
    this.origTasks = tasks;
    projects = new ProjectsAdapter(context, android.R.layout.simple_spinner_item, tasks.getProjects());
  }
  
  public ProjectsAdapter getProjectsAdapter() {
    return projects;
  }
  
  public void setTasks(TaskList tasks) {
    this.tasks = tasks;
  }

  public void resetData() {
    tasks = origTasks;
    notifyDataSetChanged();
  }

  public void removeTask(int position) {
    origTasks.remove(tasks.remove(position));
    notifyDataSetChanged();
    if(getCount() == 0) {
      resetData();
    }
  }

  @Override
  public int getCount() {
    return tasks.size();
  }

  @Override
  public Object getItem(int position) {
    return tasks.get(position);
  }

  @Override
  public long getItemId(int position) {
    return position;
  }

  private class ViewHolder {
    TextView description;
    TextView dueDate;
    TextView project;
    ImageView priority;
  }

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder;
    
    if(convertView == null) {
      holder = new ViewHolder();
      convertView = inflater.inflate(R.layout.itemtask, null);
      holder.description = (TextView)convertView.findViewById(R.id.description);
      holder.dueDate = (TextView)convertView.findViewById(R.id.dueDate);
      holder.project = (TextView)convertView.findViewById(R.id.project);
      holder.priority = (ImageView)convertView.findViewById(R.id.priority);
      convertView.setTag(holder);
    } else {
      holder = (ViewHolder) convertView.getTag();
    }
    
    holder.description.setText(tasks.get(position).getDescription());
    holder.dueDate.setText(tasks.get(position).getFormattedDue());
    holder.project.setText(tasks.get(position).getProject());
    switch(tasks.get(position).getPriority()) {
      case HIGH :
        holder.priority.setImageResource(R.drawable.high_priority);
        break;
      case MEDIUM :
        holder.priority.setImageResource(R.drawable.medium_priority);
        break;
      case LOW :
        holder.priority.setImageResource(R.drawable.low_priority);
        break;
    }
    
    return convertView;
  }

  @Override
  public Filter getFilter() {
    return new ProjectFilter();
  }

  @Override
  public void notifyDataSetChanged() {
    projects.notifyDataSetChanged();
    super.notifyDataSetChanged();
  }

  private class ProjectFilter extends Filter {
    @Override
    protected FilterResults performFiltering(CharSequence constraint) {
      FilterResults r = new FilterResults();
      tasks = origTasks;
      if(constraint == null || constraint.length() == 0) {
        r.values = tasks;
        r.count = tasks.size();
      } else {
        TaskList filtered = new TaskList();
        for(Task t : tasks) {
          if(t.getProject() != null && t.getProject().equals(constraint.toString())) {
            filtered.add(t);
          }
        }
        r.values = filtered;
        r.count = filtered.size();
      }
      return r;
    }

    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {
      if(results.count == 0) {
        notifyDataSetInvalidated();
      } else {
        tasks = (TaskList) results.values;
        notifyDataSetChanged();
      }
    }
  }
}

Java Source Code List

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