Android Open Source - Swish Custom Adapter

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) Shashank Kulkarni - Shashank.physics AT gmail DOT com
 */* w w  w .  j a  va 2 s.  com*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package com.codefupanda.app.swish.adapter;

import java.util.LinkedList;
import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;

import com.codefupanda.app.swish.R;
import com.codefupanda.app.swish.entity.Contact;

/**
 * Adapter to populate list of contacts. 
 *  
 * @author Shashank
 */
public class CustomAdapter extends BaseAdapter {

  private Context context;
  
  /** List of contacts */
  private List<Contact> contacts;

  /** Records unchecked items */
  private boolean[] itemsUnChecked;

  /**
   * Constructor.
   * 
   * @param context
   * @param contacts
   */
  public CustomAdapter(Context context, List<Contact> contacts) {
    this.context = context;
    this.contacts = contacts;
    itemsUnChecked = new boolean[contacts.size()];
  }

  /**
   * Get total contacts.
   */
  @Override
  public int getCount() {
    return contacts.size();
  }

  /**
   * Get contact at position.
   */
  @Override
  public Object getItem(int position) {
    return contacts.get(position);
  }

  @Override
  public long getItemId(int position) {
    return contacts.indexOf(getItem(position));
  }

  /** private view holder class */
  private class ViewHolder {
    ImageView profilePic;
    TextView name;
    TextView phoneNumber;
    CheckBox checkBox;
  }

  /**
   * Populate the view.
   */
  @Override
  public View getView(final int position, View convertView, ViewGroup parent) {

    LayoutInflater mInflater = (LayoutInflater) context
        .getSystemService(Activity.LAYOUT_INFLATER_SERVICE);

    if (convertView == null) {
      convertView = mInflater.inflate(R.layout.list_item, null);
      final ViewHolder holder = new ViewHolder();

      // add or setting data's to listItem row
      Contact contact = contacts.get(position);
      
      holder.name = (TextView) convertView.findViewById(R.id.name);
      holder.profilePic = (ImageView) convertView
          .findViewById(R.id.profile_pic);
      holder.phoneNumber = (TextView) convertView
          .findViewById(R.id.phone_number);
      holder.checkBox = (CheckBox) convertView.findViewById(R.id.chk);
      
      // In case contact have picture assigned to it
      // if not use the defualt pic
      holder.profilePic.setImageURI(contact.getProfilePicUri());      
      if(holder.profilePic.getDrawable() == null) {
        holder.profilePic.setImageResource(R.drawable.blank_profile_pic);
      }
      
      holder.name.setText(contact.getName());
      holder.phoneNumber.setText(getPhoneNumber(contact));

      holder.checkBox.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
          if (holder.checkBox.isChecked()) {
            itemsUnChecked[position] = false;
          } else {
            itemsUnChecked[position] = true;
          }
        }
      });

      convertView.setTag(holder);
    }

    return convertView;
  }

  /**
   * A helper method to get contact numbers.
   *  
   * @param contact contact
   * @return phone numbers separated by comma
   */
  private CharSequence getPhoneNumber(Contact contact) {
    if(contact.getPhoneNumbers() == null || contact.getPhoneNumbers().size() == 0) {
      return null;
    }
    
    StringBuilder builder = new StringBuilder();
    
    for(String phNumber: contact.getPhoneNumbers()) {
      builder.append(phNumber);
      builder.append(", ");
    }
    // remove last ", " and convert to string
    return builder.subSequence(0, builder.length() -2);
  }

  /**
   * Get all the contacts which are checked.
   * 
   * @return list of checked contacts
   */
  public List<Contact> getCheckedContacts() {
    List<Contact> checkedContacts = new LinkedList<Contact>();
    
    for(int i=0; i<contacts.size(); i++) {
      if(!itemsUnChecked[i]) {
        checkedContacts.add(contacts.get(i));
      }
    }
    
    return checkedContacts;
  }

}

Java Source Code List

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