File	Doc	Category	Size	Date	Package
ExpandableListScenario.java	API Doc	Android 1.5 API	13245	Wed May 06 22:42:02 BST 2009	com.android.frameworktest.util

ExpandableListScenario

• java.lang.Object
  • ListScenario

Fields Summary
protected android.widget.ExpandableListAdapter	mAdapter
protected List	mGroups

Constructors Summary

Methods Summary
protected android.widget.ExpandableListAdapter	createAdapter() return new MyAdapter();
protected android.widget.ListView	createListView() return new ExpandableListView(this);
protected Params	createParams() return new ExpandableParams();
protected android.view.View	createView(long packedPosition, int flPos, android.view.ViewGroup parent, int desiredHeight) Create a view for a group or child position. param packedPosition The packed position (has type, group pos, and optionally child pos). param flPos The flat list position (the position that the ListView goes by). param parent The parent view. param desiredHeight The desired height. return A view. TextView result = new TextView(parent.getContext()); result.setHeight(desiredHeight); result.setText(getValueAtPosition(packedPosition)); final ViewGroup.LayoutParams lp = new AbsListView.LayoutParams( ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); result.setLayoutParams(lp); result.setGravity(Gravity.CENTER_VERTICAL); result.setPadding(36, 0, 0, 0); result.setId(flPos); return result;
public int	findGroupWithNumChildren(int numChildren, boolean atLeastOneChild) Returns a group index containing either the number of children or at least one child. param numChildren The group must have this amount, or -1 if using atLeastOneChild. param atLeastOneChild The group must have at least one child, or false if using numChildren. return A group index with the requirements. final ExpandableListAdapter adapter = mAdapter; for (int i = adapter.getGroupCount() - 1; i >= 0; i--) { final int curNumChildren = adapter.getChildrenCount(i); if (numChildren == curNumChildren || atLeastOneChild && curNumChildren > 0) { return i; } } return -1;
public android.widget.ExpandableListAdapter	getAdapter() return mAdapter;
public android.widget.ExpandableListView	getExpandableListView() Get the ExpandableListView widget. return The main widget. return (ExpandableListView) super.getListView();
public java.util.List	getGroups() return mGroups;
public final java.lang.String	getValueAtPosition(long packedPosition) Gets a string for the value of some item. param packedPosition The position of the item. return The string. final int type = ExpandableListView.getPackedPositionType(packedPosition); if (type == ExpandableListView.PACKED_POSITION_TYPE_CHILD) { return mGroups.get(ExpandableListView.getPackedPositionGroup(packedPosition)) .children.get(ExpandableListView.getPackedPositionChild(packedPosition)) .name; } else if (type == ExpandableListView.PACKED_POSITION_TYPE_GROUP) { return mGroups.get(ExpandableListView.getPackedPositionGroup(packedPosition)) .name; } else { throw new IllegalStateException("packedPosition is not a valid position."); }
private android.view.View	getView(long packedPosition, android.view.View convertView, android.view.ViewGroup parent) Gets a view for the packed position, possibly reusing the convertView. param packedPosition The position to get a view for. param convertView Optional view to convert. param parent The future parent. return A view. if (isOutOfBounds(packedPosition)) { throw new IllegalStateException("position out of range for adapter!"); } final ExpandableListView elv = getExpandableListView(); final int flPos = elv.getFlatListPosition(packedPosition); if (convertView != null) { ((TextView) convertView).setText(getValueAtPosition(packedPosition)); convertView.setId(flPos); return convertView; } int desiredHeight = getHeightForPosition(flPos); return createView(packedPosition, flPos, parent, desiredHeight);
protected final void	init(Params params) init((ExpandableParams) params);
protected abstract void	init(com.android.frameworktest.util.ExpandableListScenario$ExpandableParams params) see ListScenario#init
private boolean	isOutOfBounds(long packedPosition) Whether a particular position is out of bounds. param packedPosition The packed position. return Whether it's out of bounds. final int type = ExpandableListView.getPackedPositionType(packedPosition); if (type == ExpandableListView.PACKED_POSITION_TYPE_NULL) { throw new IllegalStateException("packedPosition is not a valid position."); } final int group = ExpandableListView.getPackedPositionGroup(packedPosition); if (group >= mGroups.size() || group < 0) { return true; } if (type == ExpandableListView.PACKED_POSITION_TYPE_CHILD) { final int child = ExpandableListView.getPackedPositionChild(packedPosition); if (child >= mGroups.get(group).children.size() || child < 0) { return true; } } return false;
protected void	readAndValidateParams(Params params) ExpandableParams expandableParams = (ExpandableParams) params; int[] numChildren = expandableParams.mNumChildren; mGroups = new ArrayList<MyGroup>(numChildren.length); for (int i = 0; i < numChildren.length; i++) { mGroups.add(new MyGroup(numChildren[i])); } expandableParams.superSetNumItems(); super.readAndValidateParams(params);
protected void	setAdapter(android.widget.ListView listView) ((ExpandableListView) listView).setAdapter(mAdapter = createAdapter());