org.holoeverywhere.widget.ExpandableListPosition Maven / Gradle / Ivy
package org.holoeverywhere.widget;
import java.util.ArrayList;
public class ExpandableListPosition {
public final static int CHILD = 1;
public final static int GROUP = 2;
private static final int MAX_POOL_SIZE = 5;
private static ArrayList sPool =
new ArrayList(MAX_POOL_SIZE);
private static ExpandableListPosition getRecycledOrCreate() {
ExpandableListPosition elp;
synchronized (sPool) {
if (sPool.size() > 0) {
elp = sPool.remove(0);
} else {
return new ExpandableListPosition();
}
}
elp.resetState();
return elp;
}
static ExpandableListPosition obtain(int type, int groupPos, int childPos, int flatListPos) {
ExpandableListPosition elp = getRecycledOrCreate();
elp.type = type;
elp.groupPos = groupPos;
elp.childPos = childPos;
elp.flatListPos = flatListPos;
return elp;
}
static ExpandableListPosition obtainChildPosition(int groupPosition, int childPosition) {
return obtain(CHILD, groupPosition, childPosition, 0);
}
static ExpandableListPosition obtainGroupPosition(int groupPosition) {
return obtain(GROUP, groupPosition, 0, 0);
}
static ExpandableListPosition obtainPosition(long packedPosition) {
if (packedPosition == ExpandableListView.PACKED_POSITION_VALUE_NULL) {
return null;
}
ExpandableListPosition elp = getRecycledOrCreate();
elp.groupPos = ExpandableListView.getPackedPositionGroup(packedPosition);
if (ExpandableListView.getPackedPositionType(packedPosition) == ExpandableListView.PACKED_POSITION_TYPE_CHILD) {
elp.type = CHILD;
elp.childPos = ExpandableListView.getPackedPositionChild(packedPosition);
} else {
elp.type = GROUP;
}
return elp;
}
public int childPos;
int flatListPos;
public int groupPos;
public int type;
private ExpandableListPosition() {
}
long getPackedPosition() {
if (type == CHILD) {
return ExpandableListView.getPackedPositionForChild(groupPos, childPos);
} else {
return ExpandableListView.getPackedPositionForGroup(groupPos);
}
}
public void recycle() {
synchronized (sPool) {
if (sPool.size() < MAX_POOL_SIZE) {
sPool.add(this);
}
}
}
private void resetState() {
groupPos = 0;
childPos = 0;
flatListPos = 0;
type = 0;
}
}