/// <summary>Constructs the connector</summary>
public ExpandableListConnector(android.widget.ExpandableListAdapter expandableListAdapter
)
{
mDataSetObserver = new android.widget.ExpandableListConnector.MyDataSetObserver(this
);
mExpGroupMetadataList = new java.util.ArrayList <android.widget.ExpandableListConnector
.GroupMetadata>();
setExpandableListAdapter(expandableListAdapter);
}
/// <summary>
/// Point to the
/// <see cref="ExpandableListAdapter">ExpandableListAdapter</see>
/// that will give us data/Views
/// </summary>
/// <param name="expandableListAdapter">the adapter that supplies us with data/Views</param>
public virtual void setExpandableListAdapter(android.widget.ExpandableListAdapter
expandableListAdapter)
{
if (mExpandableListAdapter != null)
{
mExpandableListAdapter.unregisterDataSetObserver(mDataSetObserver);
}
mExpandableListAdapter = expandableListAdapter;
expandableListAdapter.registerDataSetObserver(mDataSetObserver);
}
public virtual void setListAdapter(android.widget.ExpandableListAdapter arg0)
{
global::MonoJavaBridge.JNIEnv @__env = global::MonoJavaBridge.JNIEnv.ThreadEnv;
if (!IsClrObject)
{
@__env.CallVoidMethod(this.JvmHandle, global::android.app.ExpandableListActivity._setListAdapter543, global::MonoJavaBridge.JavaBridge.ConvertToValue(arg0));
}
else
{
@__env.CallNonVirtualVoidMethod(this.JvmHandle, global::android.app.ExpandableListActivity.staticClass, global::android.app.ExpandableListActivity._setListAdapter543, global::MonoJavaBridge.JavaBridge.ConvertToValue(arg0));
}
}
public virtual android.widget.Filter getFilter()
{
android.widget.ExpandableListAdapter adapter = getAdapter();
if (adapter is android.widget.Filterable)
{
return(((android.widget.Filterable)adapter).getFilter());
}
else
{
return(null);
}
}
internal virtual void getSectionsFromIndexer()
{
android.widget.Adapter adapter = mList.getAdapter();
mSectionIndexer = null;
if (adapter is android.widget.HeaderViewListAdapter)
{
mListOffset = ((android.widget.HeaderViewListAdapter)adapter).getHeadersCount();
adapter = ((android.widget.HeaderViewListAdapter)adapter).getWrappedAdapter();
}
if (adapter is android.widget.ExpandableListConnector)
{
android.widget.ExpandableListAdapter expAdapter = ((android.widget.ExpandableListConnector
)adapter).getAdapter();
if (expAdapter is android.widget.SectionIndexer)
{
mSectionIndexer = (android.widget.SectionIndexer)expAdapter;
mListAdapter = (android.widget.BaseAdapter)adapter;
mSections = mSectionIndexer.getSections();
}
}
else
{
if (adapter is android.widget.SectionIndexer)
{
mListAdapter = (android.widget.BaseAdapter)adapter;
mSectionIndexer = (android.widget.SectionIndexer)adapter;
mSections = mSectionIndexer.getSections();
if (mSections == null)
{
mSections = new string[] { " " };
}
}
else
{
mListAdapter = (android.widget.BaseAdapter)adapter;
mSections = new string[] { " " };
}
}
}
/// <summary>
/// Searches the expandable list adapter for a group position matching the
/// given group ID.
/// </summary>
/// <remarks>
/// Searches the expandable list adapter for a group position matching the
/// given group ID. The search starts at the given seed position and then
/// alternates between moving up and moving down until 1) we find the right
/// position, or 2) we run out of time, or 3) we have looked at every
/// position
/// </remarks>
/// <returns>
/// Position of the row that matches the given row ID, or
/// <see cref="android.widget.AdapterView.INVALID_POSITION">android.widget.AdapterView.INVALID_POSITION
/// </see>
/// if it can't be found
/// </returns>
/// <seealso cref="AdapterView{T}.findSyncPosition()">AdapterView<T>.findSyncPosition()
/// </seealso>
internal virtual int findGroupPosition(long groupIdToMatch, int seedGroupPosition
)
{
int count = mExpandableListAdapter.getGroupCount();
if (count == 0)
{
return(android.widget.AdapterView.INVALID_POSITION);
}
// If there isn't a selection don't hunt for it
if (groupIdToMatch == android.widget.AdapterView.INVALID_ROW_ID)
{
return(android.widget.AdapterView.INVALID_POSITION);
}
// Pin seed to reasonable values
seedGroupPosition = System.Math.Max(0, seedGroupPosition);
seedGroupPosition = System.Math.Min(count - 1, seedGroupPosition);
long endTime = android.os.SystemClock.uptimeMillis() + android.widget.AdapterView.SYNC_MAX_DURATION_MILLIS;
long rowId;
// first position scanned so far
int first = seedGroupPosition;
// last position scanned so far
int last = seedGroupPosition;
// True if we should move down on the next iteration
bool next = false;
// True when we have looked at the first item in the data
bool hitFirst;
// True when we have looked at the last item in the data
bool hitLast;
// Get the item ID locally (instead of getItemIdAtPosition), so
// we need the adapter
android.widget.ExpandableListAdapter adapter = getAdapter();
if (adapter == null)
{
return(android.widget.AdapterView.INVALID_POSITION);
}
while (android.os.SystemClock.uptimeMillis() <= endTime)
{
rowId = adapter.getGroupId(seedGroupPosition);
if (rowId == groupIdToMatch)
{
// Found it!
return(seedGroupPosition);
}
hitLast = last == count - 1;
hitFirst = first == 0;
if (hitLast && hitFirst)
{
// Looked at everything
break;
}
if (hitFirst || (next && !hitLast))
{
// Either we hit the top, or we are trying to move down
last++;
seedGroupPosition = last;
// Try going up next time
next = false;
}
else
{
if (hitLast || (!next && !hitFirst))
{
// Either we hit the bottom, or we are trying to move up
first--;
seedGroupPosition = first;
// Try going down next time
next = true;
}
}
}
return(android.widget.AdapterView.INVALID_POSITION);
}
public override bool isEmpty()
{
android.widget.ExpandableListAdapter adapter = getAdapter();
return(adapter != null?adapter.isEmpty() : true);
}
public virtual void setListAdapter(android.widget.ExpandableListAdapter adapter)
{
throw new System.NotImplementedException();
}
