JarCasting#GridListView
Grid list view is a simple ListView wrapper that acts like a Grid View allowing the use of headers/footers and other ListView specific functionality whilst maintaining the dynamics of a Grid View.
##Usage
Simply use
<net.callumtaylor.gridlistview.GridListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/list_view"
app:numColumns="3"
/>
instead of your list view. Remember to define the xmlns (xmlns:app="http://schemas.android.com/apk/res-auto") in the root tag of your view to access the app prefix.
##GridAdapter
You can optionally use GridAdapter to display different amount of columns defined on a row-to-row basis.
Example:
GridAdapter adapter = new GridAdapter()
{
@Override public int getCount()
{
return items.length;
}
@Override public String getItem(int position)
{
return items[position];
}
@Override public long getItemId(int position)
{
return 0;
}
@Override public int getColumnCount(int rowIndex)
{
if (rowIndex % 2 == 0)
{
return 1;
}
else if (rowIndex % 3 == 0)
{
return 2;
}
return super.getColumnCount(rowIndex);
}
@Override public View getView(int position, View convertView, ViewGroup parent)
{
if (convertView == null)
{
convertView = getLayoutInflater().inflate(R.layout.column, parent, false);
}
((TextView)convertView.findViewById(android.R.id.text1)).setText(getItem(position));
return convertView;
}
};
##Other notes
Because GridListView uses an internal adapter wrapper to handle the columns in the view, you should call GridView#getBaseAdapter() to get the original adapter you are using when calling GridListView#setAdapter(). Calling GridListView#getAdapter() will return the internal adapter implementation and may produce unexpected results.