DragSortItemViewCheckable.java

package com.smartandroid.sa.drag;

import android.content.Context;
import android.view.View;
import android.widget.Checkable;

/**
 * Lightweight ViewGroup that wraps list items obtained from user's ListAdapter.
 * ItemView expects a single child that has a definite height (i.e. the child's
 * layout height is not MATCH_PARENT). The width of ItemView will always match
 * the width of its child (that is, the width MeasureSpec given to ItemView is
 * passed directly to the child, and the ItemView measured width is set to the
 * child's measured width). The height of ItemView can be anything; the
 * 
 * 
 * The purpose of this class is to optimize slide shuffle animations.
 */
public class DragSortItemViewCheckable extends DragSortItemView implements
		Checkable {

	public DragSortItemViewCheckable(Context context) {
		super(context);
	}

	@Override
	public boolean isChecked() {
		View child = getChildAt(0);
		if (child instanceof Checkable)
			return ((Checkable) child).isChecked();
		else
			return false;
	}

	@Override
	public void setChecked(boolean checked) {
		View child = getChildAt(0);
		if (child instanceof Checkable)
			((Checkable) child).setChecked(checked);
	}

	@Override
	public void toggle() {
		View child = getChildAt(0);
		if (child instanceof Checkable)
			((Checkable) child).toggle();
	}
}