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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.view;
     18 
     19 import android.app.Activity;
     20 import android.graphics.drawable.Drawable;
     21 import android.widget.AdapterView;
     22 
     23 /**
     24  * Extension of {@link Menu} for context menus providing functionality to modify
     25  * the header of the context menu.
     26  * <p>
     27  * Context menus do not support item shortcuts and item icons.
     28  * <p>
     29  * To show a context menu on long click, most clients will want to call
     30  * {@link Activity#registerForContextMenu} and override
     31  * {@link Activity#onCreateContextMenu}.
     32  *
     33  * <div class="special reference">
     34  * <h3>Developer Guides</h3>
     35  * <p>For information about creating menus, read the
     36  * <a href="{@docRoot}guide/topics/ui/menus.html">Menus</a> developer guide.</p>
     37  * </div>
     38  */
     39 public interface ContextMenu extends Menu {
     40     /**
     41      * Sets the context menu header's title to the title given in <var>titleRes</var>
     42      * resource identifier.
     43      *
     44      * @param titleRes The string resource identifier used for the title.
     45      * @return This ContextMenu so additional setters can be called.
     46      */
     47     public ContextMenu setHeaderTitle(int titleRes);
     48 
     49     /**
     50      * Sets the context menu header's title to the title given in <var>title</var>.
     51      *
     52      * @param title The character sequence used for the title.
     53      * @return This ContextMenu so additional setters can be called.
     54      */
     55     public ContextMenu setHeaderTitle(CharSequence title);
     56 
     57     /**
     58      * Sets the context menu header's icon to the icon given in <var>iconRes</var>
     59      * resource id.
     60      *
     61      * @param iconRes The resource identifier used for the icon.
     62      * @return This ContextMenu so additional setters can be called.
     63      */
     64     public ContextMenu setHeaderIcon(int iconRes);
     65 
     66     /**
     67      * Sets the context menu header's icon to the icon given in <var>icon</var>
     68      * {@link Drawable}.
     69      *
     70      * @param icon The {@link Drawable} used for the icon.
     71      * @return This ContextMenu so additional setters can be called.
     72      */
     73     public ContextMenu setHeaderIcon(Drawable icon);
     74 
     75     /**
     76      * Sets the header of the context menu to the {@link View} given in
     77      * <var>view</var>. This replaces the header title and icon (and those
     78      * replace this).
     79      *
     80      * @param view The {@link View} used for the header.
     81      * @return This ContextMenu so additional setters can be called.
     82      */
     83     public ContextMenu setHeaderView(View view);
     84 
     85     /**
     86      * Clears the header of the context menu.
     87      */
     88     public void clearHeader();
     89 
     90     /**
     91      * Additional information regarding the creation of the context menu.  For example,
     92      * {@link AdapterView}s use this to pass the exact item position within the adapter
     93      * that initiated the context menu.
     94      */
     95     public interface ContextMenuInfo {
     96     }
     97 }
     98