/*
|
* Copyright (C) 2006 The Android Open Source Project
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
*/
|
|
package android.widget;
|
|
/**
|
* Extended {@link Adapter} that is the bridge between a {@link ListView}
|
* and the data that backs the list. Frequently that data comes from a Cursor,
|
* but that is not
|
* required. The ListView can display any data provided that it is wrapped in a
|
* ListAdapter.
|
*/
|
public interface ListAdapter extends Adapter {
|
|
/**
|
* Indicates whether all the items in this adapter are enabled. If the
|
* value returned by this method changes over time, there is no guarantee
|
* it will take effect. If true, it means all items are selectable and
|
* clickable (there is no separator.)
|
*
|
* @return True if all items are enabled, false otherwise.
|
*
|
* @see #isEnabled(int)
|
*/
|
public boolean areAllItemsEnabled();
|
|
/**
|
* Returns true if the item at the specified position is not a separator.
|
* (A separator is a non-selectable, non-clickable item).
|
*
|
* The result is unspecified if position is invalid. An {@link ArrayIndexOutOfBoundsException}
|
* should be thrown in that case for fast failure.
|
*
|
* @param position Index of the item
|
*
|
* @return True if the item is not a separator
|
*
|
* @see #areAllItemsEnabled()
|
*/
|
boolean isEnabled(int position);
|
}
|
