content: /*
   * 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);
  }
  