1 /******************************************************************************* 2 * Copyright (C) 2012 Google Inc. 3 * Licensed to The Android Open Source Project. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 *******************************************************************************/ 17 18 package com.android.mail.ui; 19 20 import android.view.View; 21 import android.view.ViewGroup; 22 import android.widget.Adapter; 23 import android.widget.BaseAdapter; 24 25 import java.util.ArrayList; 26 27 public class SeparatedFolderListAdapter extends BaseAdapter { 28 29 private final ArrayList<FolderSelectorAdapter> mSections = 30 new ArrayList<FolderSelectorAdapter>(); 31 public final static int TYPE_ITEM = 0; 32 33 public void addSection(FolderSelectorAdapter adapter) { 34 mSections.add(adapter); 35 } 36 37 public void clearSections() { 38 mSections.clear(); 39 } 40 41 @Override 42 public Object getItem(int position) { 43 for (FolderSelectorAdapter adapter : mSections) { 44 int size = adapter.getCount(); 45 46 // check if position inside this section 47 if (position < size) 48 return adapter.getItem(position); 49 50 // otherwise jump into next section 51 position -= size; 52 } 53 return null; 54 } 55 56 @Override 57 public int getCount() { 58 // total together all sections, plus one for each section header 59 int total = 0; 60 for (FolderSelectorAdapter adapter : mSections) { 61 total += adapter.getCount(); 62 } 63 return total; 64 } 65 66 @Override 67 public int getViewTypeCount() { 68 // assume that headers count as one, then total all sections 69 int total = 0; 70 for (Adapter adapter : mSections) 71 total += adapter.getViewTypeCount(); 72 return total == 0 ? 1 : total; 73 } 74 75 @Override 76 public int getItemViewType(int position) { 77 int type = 0; 78 for (FolderSelectorAdapter adapter : mSections) { 79 int size = adapter.getCount(); 80 // check if position inside this section 81 if (position < size) { 82 return type + adapter.getItemViewType(position); 83 } 84 85 // otherwise jump into next section 86 position -= size; 87 type += adapter.getViewTypeCount(); 88 } 89 return -1; 90 } 91 92 93 @Override 94 public View getView(int position, View convertView, ViewGroup parent) { 95 for (FolderSelectorAdapter adapter : mSections) { 96 int size = adapter.getCount(); 97 if (position < size) { 98 return adapter.getView(position, convertView, parent); 99 } 100 // otherwise jump into next section 101 position -= size; 102 } 103 return null; 104 } 105 106 @Override 107 public long getItemId(int position) { 108 return position; 109 } 110 111 } 112
