1 /* 2 * Copyright (C) 2013 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 18 package com.android.mail.ui; 19 20 import android.widget.ListView; 21 22 /** 23 * A drawer that is shown in one pane mode, as a pull-out from the left. All the 24 * implementation is inherited from the FolderListFragment. 25 * 26 * The drawer shows a list of accounts, the recent folders, and a list of top-level folders for 27 * the given account. This fragment is created using no arguments, it gets all its state from the 28 * controller in {@link #onActivityCreated(android.os.Bundle)}. In particular, it gets the current 29 * account, the list of accounts, and the current folder from the {@link ControllableActivity}. 30 * 31 * Once it has this information, the drawer sets itself up to observe for changes and allows the 32 * user to change folders and accounts. 33 * 34 * The drawer is always instantiated through XML resources: in one_pane_activity.xml and in 35 * two_pane_activity.xml 36 */ 37 public class DrawerFragment extends FolderListFragment { 38 /** 39 * The only way a drawer is constructed is through XML layouts, and so it needs no constructor 40 * like {@link FolderListFragment#ofTopLevelTree(android.net.Uri, java.util.ArrayList} 41 */ 42 public DrawerFragment() { 43 super(); 44 // Drawer is always divided: it shows groups for inboxes, recent folders and all other 45 // folders. 46 mIsDivided = true; 47 // The drawer shows the footer. 48 mIsFolderSelectionActivity = false; 49 } 50 51 @Override 52 protected int getListViewChoiceMode() { 53 // Always let one item be selected 54 return ListView.CHOICE_MODE_SINGLE; 55 } 56 } 57
