1 /* 2 * Copyright (C) 2017 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.dialer.contactsfragment; 18 19 import android.content.Context; 20 import android.database.Cursor; 21 import android.net.Uri; 22 import android.provider.ContactsContract.Contacts; 23 import android.support.v4.util.ArrayMap; 24 import android.support.v7.widget.RecyclerView; 25 import android.view.LayoutInflater; 26 import android.view.ViewGroup; 27 import android.widget.TextView; 28 import com.android.contacts.common.ContactPhotoManager; 29 import com.android.dialer.common.Assert; 30 31 /** List adapter for the union of all contacts associated with every account on the device. */ 32 final class ContactsAdapter extends RecyclerView.Adapter<ContactViewHolder> { 33 34 private final ArrayMap<ContactViewHolder, Integer> holderMap = new ArrayMap<>(); 35 private final Context context; 36 private final Cursor cursor; 37 38 // List of contact sublist headers 39 private final String[] headers; 40 41 // Number of contacts that correspond to each header in {@code headers}. 42 private final int[] counts; 43 ContactsAdapter(Context context, Cursor cursor)44 public ContactsAdapter(Context context, Cursor cursor) { 45 this.context = context; 46 this.cursor = cursor; 47 headers = cursor.getExtras().getStringArray(Contacts.EXTRA_ADDRESS_BOOK_INDEX_TITLES); 48 counts = cursor.getExtras().getIntArray(Contacts.EXTRA_ADDRESS_BOOK_INDEX_COUNTS); 49 } 50 51 @Override onCreateViewHolder(ViewGroup parent, int position)52 public ContactViewHolder onCreateViewHolder(ViewGroup parent, int position) { 53 return new ContactViewHolder( 54 LayoutInflater.from(context).inflate(R.layout.contact_row, parent, false)); 55 } 56 57 @Override onBindViewHolder(ContactViewHolder contactViewHolder, int position)58 public void onBindViewHolder(ContactViewHolder contactViewHolder, int position) { 59 holderMap.put(contactViewHolder, position); 60 cursor.moveToPosition(position); 61 62 String name = getDisplayName(cursor); 63 String header = getHeaderString(position); 64 Uri contactUri = getContactUri(cursor); 65 66 ContactPhotoManager.getInstance(context) 67 .loadDialerThumbnailOrPhoto( 68 contactViewHolder.getPhoto(), 69 contactUri, 70 getPhotoId(cursor), 71 getPhotoUri(cursor), 72 name, 73 0); 74 75 String photoDescription = 76 context.getString(com.android.contacts.common.R.string.description_quick_contact_for, name); 77 contactViewHolder.getPhoto().setContentDescription(photoDescription); 78 79 // Always show the view holder's header if it's the first item in the list. Otherwise, compare 80 // it to the previous element and only show the anchored header if the row elements fall into 81 // the same sublists. 82 if (position == 0) { 83 contactViewHolder.bind(header, name, contactUri, true); 84 } else { 85 boolean showHeader = !header.equals(getHeaderString(position - 1)); 86 contactViewHolder.bind(header, name, contactUri, showHeader); 87 } 88 } 89 refreshHeaders()90 public void refreshHeaders() { 91 for (ContactViewHolder holder : holderMap.keySet()) { 92 onBindViewHolder(holder, holderMap.get(holder)); 93 } 94 } 95 96 @Override getItemCount()97 public int getItemCount() { 98 return cursor == null ? 0 : cursor.getCount(); 99 } 100 getHeader(int position)101 public String getHeader(int position) { 102 return getHolderAt(position).getHeader(); 103 } 104 getHeaderView(int position)105 public TextView getHeaderView(int position) { 106 return getHolderAt(position).getHeaderView(); 107 } 108 setHeaderVisibility(int position, int visibility)109 public void setHeaderVisibility(int position, int visibility) { 110 getHolderAt(position).getHeaderView().setVisibility(visibility); 111 } 112 getHolderAt(int position)113 private ContactViewHolder getHolderAt(int position) { 114 for (ContactViewHolder holder : holderMap.keySet()) { 115 if (holderMap.get(holder) == position) { 116 return holder; 117 } 118 } 119 throw Assert.createIllegalStateFailException("No holder for position: " + position); 120 } 121 getDisplayName(Cursor cursor)122 private static String getDisplayName(Cursor cursor) { 123 return cursor.getString(ContactsCursorLoader.CONTACT_DISPLAY_NAME); 124 } 125 getPhotoId(Cursor cursor)126 private static long getPhotoId(Cursor cursor) { 127 return cursor.getLong(ContactsCursorLoader.CONTACT_PHOTO_ID); 128 } 129 getPhotoUri(Cursor cursor)130 private static Uri getPhotoUri(Cursor cursor) { 131 String photoUri = cursor.getString(ContactsCursorLoader.CONTACT_PHOTO_URI); 132 return photoUri == null ? null : Uri.parse(photoUri); 133 } 134 getContactUri(Cursor cursor)135 private static Uri getContactUri(Cursor cursor) { 136 long contactId = cursor.getLong(ContactsCursorLoader.CONTACT_ID); 137 String lookupKey = cursor.getString(ContactsCursorLoader.CONTACT_LOOKUP_KEY); 138 return Contacts.getLookupUri(contactId, lookupKey); 139 } 140 getHeaderString(int position)141 private String getHeaderString(int position) { 142 int index = -1; 143 int sum = 0; 144 while (sum <= position) { 145 sum += counts[++index]; 146 } 147 return headers[index]; 148 } 149 } 150