19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.database.DataSetObserver; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ListAdapter used when a ListView has header views. This ListAdapter 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * wraps another one and also keeps track of the header views and their 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated data objects. 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *<p>This is intended as a base class; you will probably not need to 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * use this class directly in your own code. 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class HeaderViewListAdapter implements WrapperListAdapter, Filterable { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne private final ListAdapter mAdapter; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36176f9fc215194411cf0461a178d77fa57486112bGilles Debunne // These two ArrayList are assumed to NOT be null. 37478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne // They are indeed created when declared in ListView and then shared. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<ListView.FixedViewInfo> mHeaderViewInfos; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<ListView.FixedViewInfo> mFooterViewInfos; 40478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne 41478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne // Used as a placeholder in case the provided info views are indeed null. 42478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne // Currently only used by some CTS tests, which may be removed. 43478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne static final ArrayList<ListView.FixedViewInfo> EMPTY_INFO_LIST = 44478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne new ArrayList<ListView.FixedViewInfo>(); 45478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mAreAllFixedViewsSelectable; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne private final boolean mIsFilterable; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public HeaderViewListAdapter(ArrayList<ListView.FixedViewInfo> headerViewInfos, 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<ListView.FixedViewInfo> footerViewInfos, 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter adapter) { 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAdapter = adapter; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsFilterable = adapter instanceof Filterable; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne if (headerViewInfos == null) { 57478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne mHeaderViewInfos = EMPTY_INFO_LIST; 58478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne } else { 59478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne mHeaderViewInfos = headerViewInfos; 60478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne } 61478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne 62478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne if (footerViewInfos == null) { 63478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne mFooterViewInfos = EMPTY_INFO_LIST; 64478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne } else { 65478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne mFooterViewInfos = footerViewInfos; 66478a745e8421497bad9ea0cbd75bc4d4d419ef60Gilles Debunne } 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAreAllFixedViewsSelectable = 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project areAllListInfosSelectable(mHeaderViewInfos) 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && areAllListInfosSelectable(mFooterViewInfos); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getHeadersCount() { 74176f9fc215194411cf0461a178d77fa57486112bGilles Debunne return mHeaderViewInfos.size(); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getFootersCount() { 78176f9fc215194411cf0461a178d77fa57486112bGilles Debunne return mFooterViewInfos.size(); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isEmpty() { 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter == null || mAdapter.isEmpty(); 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean areAllListInfosSelectable(ArrayList<ListView.FixedViewInfo> infos) { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (infos != null) { 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (ListView.FixedViewInfo info : infos) { 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!info.isSelectable) { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean removeHeader(View v) { 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < mHeaderViewInfos.size(); i++) { 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListView.FixedViewInfo info = mHeaderViewInfos.get(i); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (info.view == v) { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHeaderViewInfos.remove(i); 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAreAllFixedViewsSelectable = 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project areAllListInfosSelectable(mHeaderViewInfos) 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && areAllListInfosSelectable(mFooterViewInfos); 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean removeFooter(View v) { 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < mFooterViewInfos.size(); i++) { 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListView.FixedViewInfo info = mFooterViewInfos.get(i); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (info.view == v) { 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFooterViewInfos.remove(i); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAreAllFixedViewsSelectable = 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project areAllListInfosSelectable(mHeaderViewInfos) 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && areAllListInfosSelectable(mFooterViewInfos); 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCount() { 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null) { 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getFootersCount() + getHeadersCount() + mAdapter.getCount(); 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getFootersCount() + getHeadersCount(); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean areAllItemsEnabled() { 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null) { 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAreAllFixedViewsSelectable && mAdapter.areAllItemsEnabled(); 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isEnabled(int position) { 14734783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Header (negative positions will throw an ArrayIndexOutOfBoundsException) 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numHeaders = getHeadersCount(); 14934783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (position < numHeaders) { 15034783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne return mHeaderViewInfos.get(position).isSelectable; 15134783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne } 15234783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne 15334783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Adapter 15434783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne final int adjPosition = position - numHeaders; 15534783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne int adapterCount = 0; 15634783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (mAdapter != null) { 15734783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne adapterCount = mAdapter.getCount(); 15834783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (adjPosition < adapterCount) { 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.isEnabled(adjPosition); 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16234783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne 16334783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Footer (off-limits positions will throw an ArrayIndexOutOfBoundsException) 16434783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne return mFooterViewInfos.get(adjPosition - adapterCount).isSelectable; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Object getItem(int position) { 16834783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Header (negative positions will throw an ArrayIndexOutOfBoundsException) 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numHeaders = getHeadersCount(); 17034783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (position < numHeaders) { 17134783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne return mHeaderViewInfos.get(position).data; 17234783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne } 17334783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne 17434783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Adapter 17534783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne final int adjPosition = position - numHeaders; 17634783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne int adapterCount = 0; 17734783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (mAdapter != null) { 17834783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne adapterCount = mAdapter.getCount(); 17934783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (adjPosition < adapterCount) { 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItem(adjPosition); 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18334783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne 18434783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Footer (off-limits positions will throw an ArrayIndexOutOfBoundsException) 18534783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne return mFooterViewInfos.get(adjPosition - adapterCount).data; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long getItemId(int position) { 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numHeaders = getHeadersCount(); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null && position >= numHeaders) { 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int adjPosition = position - numHeaders; 19234783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne int adapterCount = mAdapter.getCount(); 19334783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (adjPosition < adapterCount) { 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(adjPosition); 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasStableIds() { 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null) { 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.hasStableIds(); 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getView(int position, View convertView, ViewGroup parent) { 20834783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Header (negative positions will throw an ArrayIndexOutOfBoundsException) 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numHeaders = getHeadersCount(); 21034783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (position < numHeaders) { 21134783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne return mHeaderViewInfos.get(position).view; 21234783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne } 21334783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne 21434783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Adapter 21534783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne final int adjPosition = position - numHeaders; 21634783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne int adapterCount = 0; 21734783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (mAdapter != null) { 21834783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne adapterCount = mAdapter.getCount(); 21934783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne if (adjPosition < adapterCount) { 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getView(adjPosition, convertView, parent); 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22334783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne 22434783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne // Footer (off-limits positions will throw an ArrayIndexOutOfBoundsException) 22534783aac261f55ba1fbc2ccb60fd0bdb12fdf52aGilles Debunne return mFooterViewInfos.get(adjPosition - adapterCount).view; 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getItemViewType(int position) { 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numHeaders = getHeadersCount(); 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null && position >= numHeaders) { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int adjPosition = position - numHeaders; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int adapterCount = mAdapter.getCount(); 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adjPosition < adapterCount) { 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemViewType(adjPosition); 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AdapterView.ITEM_VIEW_TYPE_HEADER_OR_FOOTER; 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getViewTypeCount() { 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null) { 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getViewTypeCount(); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void registerDataSetObserver(DataSetObserver observer) { 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null) { 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAdapter.registerDataSetObserver(observer); 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void unregisterDataSetObserver(DataSetObserver observer) { 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null) { 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAdapter.unregisterDataSetObserver(observer); 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Filter getFilter() { 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsFilterable) { 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ((Filterable) mAdapter).getFilter(); 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ListAdapter getWrappedAdapter() { 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter; 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 271