1 /* 2 * Copyright (C) 2011 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 com.android.contacts.group; 18 19 import android.content.ContentUris; 20 import android.content.Context; 21 import android.database.Cursor; 22 import android.net.Uri; 23 import android.provider.ContactsContract.Groups; 24 import android.view.LayoutInflater; 25 import android.view.View; 26 import android.view.ViewGroup; 27 import android.widget.BaseAdapter; 28 import android.widget.TextView; 29 30 import com.android.contacts.GroupListLoader; 31 import com.android.contacts.R; 32 import com.android.contacts.common.model.account.AccountType; 33 import com.android.contacts.common.model.AccountTypeManager; 34 import com.google.common.base.Objects; 35 36 /** 37 * Adapter to populate the list of groups. 38 */ 39 public class GroupBrowseListAdapter extends BaseAdapter { 40 41 private final Context mContext; 42 private final LayoutInflater mLayoutInflater; 43 private final AccountTypeManager mAccountTypeManager; 44 45 private Cursor mCursor; 46 47 private boolean mSelectionVisible; 48 private Uri mSelectedGroupUri; 49 GroupBrowseListAdapter(Context context)50 public GroupBrowseListAdapter(Context context) { 51 mContext = context; 52 mLayoutInflater = LayoutInflater.from(context); 53 mAccountTypeManager = AccountTypeManager.getInstance(mContext); 54 } 55 setCursor(Cursor cursor)56 public void setCursor(Cursor cursor) { 57 mCursor = cursor; 58 59 // If there's no selected group already and the cursor is valid, then by default, select the 60 // first group 61 if (mSelectedGroupUri == null && cursor != null && cursor.getCount() > 0) { 62 GroupListItem firstItem = getItem(0); 63 long groupId = (firstItem == null) ? 0 : firstItem.getGroupId(); 64 mSelectedGroupUri = getGroupUriFromId(groupId); 65 } 66 67 notifyDataSetChanged(); 68 } 69 getSelectedGroupPosition()70 public int getSelectedGroupPosition() { 71 if (mSelectedGroupUri == null || mCursor == null || mCursor.getCount() == 0) { 72 return -1; 73 } 74 75 int index = 0; 76 mCursor.moveToPosition(-1); 77 while (mCursor.moveToNext()) { 78 long groupId = mCursor.getLong(GroupListLoader.GROUP_ID); 79 Uri uri = getGroupUriFromId(groupId); 80 if (mSelectedGroupUri.equals(uri)) { 81 return index; 82 } 83 index++; 84 } 85 return -1; 86 } 87 setSelectionVisible(boolean flag)88 public void setSelectionVisible(boolean flag) { 89 mSelectionVisible = flag; 90 } 91 setSelectedGroup(Uri groupUri)92 public void setSelectedGroup(Uri groupUri) { 93 mSelectedGroupUri = groupUri; 94 } 95 isSelectedGroup(Uri groupUri)96 private boolean isSelectedGroup(Uri groupUri) { 97 return mSelectedGroupUri != null && mSelectedGroupUri.equals(groupUri); 98 } 99 getSelectedGroup()100 public Uri getSelectedGroup() { 101 return mSelectedGroupUri; 102 } 103 104 @Override getCount()105 public int getCount() { 106 return (mCursor == null || mCursor.isClosed()) ? 0 : mCursor.getCount(); 107 } 108 109 @Override getItemId(int position)110 public long getItemId(int position) { 111 return position; 112 } 113 114 @Override getItem(int position)115 public GroupListItem getItem(int position) { 116 if (mCursor == null || mCursor.isClosed() || !mCursor.moveToPosition(position)) { 117 return null; 118 } 119 String accountName = mCursor.getString(GroupListLoader.ACCOUNT_NAME); 120 String accountType = mCursor.getString(GroupListLoader.ACCOUNT_TYPE); 121 String dataSet = mCursor.getString(GroupListLoader.DATA_SET); 122 long groupId = mCursor.getLong(GroupListLoader.GROUP_ID); 123 String title = mCursor.getString(GroupListLoader.TITLE); 124 int memberCount = mCursor.getInt(GroupListLoader.MEMBER_COUNT); 125 126 // Figure out if this is the first group for this account name / account type pair by 127 // checking the previous entry. This is to determine whether or not we need to display an 128 // account header in this item. 129 int previousIndex = position - 1; 130 boolean isFirstGroupInAccount = true; 131 if (previousIndex >= 0 && mCursor.moveToPosition(previousIndex)) { 132 String previousGroupAccountName = mCursor.getString(GroupListLoader.ACCOUNT_NAME); 133 String previousGroupAccountType = mCursor.getString(GroupListLoader.ACCOUNT_TYPE); 134 String previousGroupDataSet = mCursor.getString(GroupListLoader.DATA_SET); 135 136 if (accountName.equals(previousGroupAccountName) && 137 accountType.equals(previousGroupAccountType) && 138 Objects.equal(dataSet, previousGroupDataSet)) { 139 isFirstGroupInAccount = false; 140 } 141 } 142 143 return new GroupListItem(accountName, accountType, dataSet, groupId, title, 144 isFirstGroupInAccount, memberCount); 145 } 146 147 @Override getView(int position, View convertView, ViewGroup parent)148 public View getView(int position, View convertView, ViewGroup parent) { 149 GroupListItem entry = getItem(position); 150 View result; 151 GroupListItemViewCache viewCache; 152 if (convertView != null) { 153 result = convertView; 154 viewCache = (GroupListItemViewCache) result.getTag(); 155 } else { 156 result = mLayoutInflater.inflate(R.layout.group_browse_list_item, parent, false); 157 viewCache = new GroupListItemViewCache(result); 158 result.setTag(viewCache); 159 } 160 161 // Add a header if this is the first group in an account and hide the divider 162 if (entry.isFirstGroupInAccount()) { 163 bindHeaderView(entry, viewCache); 164 viewCache.accountHeader.setVisibility(View.VISIBLE); 165 viewCache.divider.setVisibility(View.GONE); 166 if (position == 0) { 167 // Have the list's top padding in the first header. 168 // 169 // This allows the ListView to show correct fading effect on top. 170 // If we have topPadding in the ListView itself, an inappropriate padding is 171 // inserted between fading items and the top edge. 172 viewCache.accountHeaderExtraTopPadding.setVisibility(View.VISIBLE); 173 } else { 174 viewCache.accountHeaderExtraTopPadding.setVisibility(View.GONE); 175 } 176 } else { 177 viewCache.accountHeader.setVisibility(View.GONE); 178 viewCache.divider.setVisibility(View.VISIBLE); 179 viewCache.accountHeaderExtraTopPadding.setVisibility(View.GONE); 180 } 181 182 // Bind the group data 183 Uri groupUri = getGroupUriFromId(entry.getGroupId()); 184 String memberCountString = mContext.getResources().getQuantityString( 185 R.plurals.group_list_num_contacts_in_group, entry.getMemberCount(), 186 entry.getMemberCount()); 187 viewCache.setUri(groupUri); 188 viewCache.groupTitle.setText(entry.getTitle()); 189 viewCache.groupMemberCount.setText(memberCountString); 190 191 if (mSelectionVisible) { 192 result.setActivated(isSelectedGroup(groupUri)); 193 } 194 return result; 195 } 196 bindHeaderView(GroupListItem entry, GroupListItemViewCache viewCache)197 private void bindHeaderView(GroupListItem entry, GroupListItemViewCache viewCache) { 198 AccountType accountType = mAccountTypeManager.getAccountType( 199 entry.getAccountType(), entry.getDataSet()); 200 viewCache.accountType.setText(accountType.getDisplayLabel(mContext)); 201 viewCache.accountName.setText(entry.getAccountName()); 202 } 203 getGroupUriFromId(long groupId)204 private static Uri getGroupUriFromId(long groupId) { 205 return ContentUris.withAppendedId(Groups.CONTENT_URI, groupId); 206 } 207 208 /** 209 * Cache of the children views of a contact detail entry represented by a 210 * {@link GroupListItem} 211 */ 212 public static class GroupListItemViewCache { 213 public final TextView accountType; 214 public final TextView accountName; 215 public final TextView groupTitle; 216 public final TextView groupMemberCount; 217 public final View accountHeader; 218 public final View accountHeaderExtraTopPadding; 219 public final View divider; 220 private Uri mUri; 221 GroupListItemViewCache(View view)222 public GroupListItemViewCache(View view) { 223 accountType = (TextView) view.findViewById(R.id.account_type); 224 accountName = (TextView) view.findViewById(R.id.account_name); 225 groupTitle = (TextView) view.findViewById(R.id.label); 226 groupMemberCount = (TextView) view.findViewById(R.id.count); 227 accountHeader = view.findViewById(R.id.group_list_header); 228 accountHeaderExtraTopPadding = view.findViewById(R.id.header_extra_top_padding); 229 divider = view.findViewById(R.id.divider); 230 } 231 setUri(Uri uri)232 public void setUri(Uri uri) { 233 mUri = uri; 234 } 235 getUri()236 public Uri getUri() { 237 return mUri; 238 } 239 } 240 } 241