/*
Separated List Adapter
Taken from http://jsharkey.org/blog/2008/08/18/separating-lists-with-headers-in-android-09/
Copyright Jeff Sharkey
This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
If a copy of the MPL was not distributed with this file, You can obtain one at
http://mozilla.org/MPL/2.0/.
*/
package com.freerdp.freerdpcore.utils;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Adapter;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import com.freerdp.freerdpcore.R;
import java.util.LinkedHashMap;
import java.util.Map;
public class SeparatedListAdapter extends BaseAdapter
{
public final static int TYPE_SECTION_HEADER = 0;
public final Map<String, Adapter> sections = new LinkedHashMap<String, Adapter>();
public final ArrayAdapter<String> headers;
public SeparatedListAdapter(Context context)
{
headers = new ArrayAdapter<String>(context, R.layout.list_header);
}
public void addSection(String section, Adapter adapter)
{
this.headers.add(section);
this.sections.put(section, adapter);
}
public void setSectionTitle(int section, String title)
{
String oldTitle = this.headers.getItem(section);
// remove/add to headers array
this.headers.remove(oldTitle);
this.headers.insert(title, section);
// remove/add to section map
Adapter adapter = this.sections.get(oldTitle);
this.sections.remove(oldTitle);
this.sections.put(title, adapter);
}
public Object getItem(int position)
{
for (int i = 0; i < headers.getCount(); i++)
{
String section = headers.getItem(i);
Adapter adapter = sections.get(section);
// ignore empty sections
if (adapter.getCount() > 0)
{
int size = adapter.getCount() + 1;
// check if position inside this section
if (position == 0)
return section;
if (position < size)
return adapter.getItem(position - 1);
// otherwise jump into next section
position -= size;
}
}
return null;
}
public int getCount()
{
// total together all sections, plus one for each section header (except if the section is
// empty)
int total = 0;
for (Adapter adapter : this.sections.values())
total += ((adapter.getCount() > 0) ? adapter.getCount() + 1 : 0);
return total;
}
public int getViewTypeCount()
{
// assume that headers count as one, then total all sections
int total = 1;
for (Adapter adapter : this.sections.values())
total += adapter.getViewTypeCount();
return total;
}
public int getItemViewType(int position)
{
int type = 1;
for (int i = 0; i < headers.getCount(); i++)
{
String section = headers.getItem(i);
Adapter adapter = sections.get(section);
// skip empty sections
if (adapter.getCount() > 0)
{
int size = adapter.getCount() + 1;
// check if position inside this section
if (position == 0)
return TYPE_SECTION_HEADER;
if (position < size)
return type + adapter.getItemViewType(position - 1);
// otherwise jump into next section
position -= size;
type += adapter.getViewTypeCount();
}
}
return -1;
}
public boolean areAllItemsSelectable()
{
return false;
}
public boolean isEnabled(int position)
{
return (getItemViewType(position) != TYPE_SECTION_HEADER);
}
@Override public View getView(int position, View convertView, ViewGroup parent)
{
int sectionnum = 0;
for (int i = 0; i < headers.getCount(); i++)
{
String section = headers.getItem(i);
Adapter adapter = sections.get(section);
// skip empty sections
if (adapter.getCount() > 0)
{
int size = adapter.getCount() + 1;
// check if position inside this section
if (position == 0)
return headers.getView(sectionnum, convertView, parent);
if (position < size)
return adapter.getView(position - 1, null, parent);
// otherwise jump into next section
position -= size;
}
sectionnum++;
}
return null;
}
@Override public long getItemId(int position)
{
for (int i = 0; i < headers.getCount(); i++)
{
String section = headers.getItem(i);
Adapter adapter = sections.get(section);
if (adapter.getCount() > 0)
{
int size = adapter.getCount() + 1;
// check if position inside this section
if (position < size)
return adapter.getItemId(position - 1);
// otherwise jump into next section
position -= size;
}
}
return -1;
}
public String getSectionForPosition(int position)
{
int curPos = 0;
for (int i = 0; i < headers.getCount(); i++)
{
String section = headers.getItem(i);
Adapter adapter = sections.get(section);
if (adapter.getCount() > 0)
{
int size = adapter.getCount() + 1;
// check if position inside this section
if (position >= curPos && position < (curPos + size))
return section.toString();
// otherwise jump into next section
curPos += size;
}
}
return null;
}
}