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      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.car.dialer;
     18 
     19 import android.database.Cursor;
     20 import android.net.Uri;
     21 import android.provider.ContactsContract.Contacts;
     22 import android.support.v7.widget.RecyclerView;
     23 import android.view.LayoutInflater;
     24 import android.view.View;
     25 import android.view.ViewGroup;
     26 
     27 import java.util.ArrayList;
     28 import java.util.List;
     29 
     30 import androidx.car.widget.PagedListView;
     31 
     32 /**
     33  *  An adapter that will parse a list of contacts given by a {@link Cursor} that display the
     34  *  results as a list.
     35  */
     36 public class ContactResultsAdapter extends RecyclerView.Adapter<ContactResultViewHolder>
     37         implements PagedListView.ItemCap {
     38     private final List<ContactResultViewHolder.ContactDetails> mContacts = new ArrayList<>();
     39 
     40     /**
     41      * Clears all contact results from this adapter.
     42      */
     43     public void clear() {
     44         mContacts.clear();
     45         notifyDataSetChanged();
     46     }
     47 
     48     /**
     49      * Sets the list of contacts that should be displayed. The given {@link Cursor} can be safely
     50      * closed after this call.
     51      */
     52     public void setData(Cursor data) {
     53         mContacts.clear();
     54 
     55         while (data.moveToNext()) {
     56             int idColIdx = data.getColumnIndex(Contacts._ID);
     57             int lookupColIdx = data.getColumnIndex(Contacts.LOOKUP_KEY);
     58             int nameColIdx = data.getColumnIndex(Contacts.DISPLAY_NAME);
     59             int photoUriColIdx = data.getColumnIndex(Contacts.PHOTO_URI);
     60 
     61             Uri lookupUri = Contacts.getLookupUri(
     62                     data.getLong(idColIdx), data.getString(lookupColIdx));
     63 
     64             mContacts.add(new ContactResultViewHolder.ContactDetails(
     65                     data.getString(nameColIdx),
     66                     data.getString(photoUriColIdx),
     67                     lookupUri));
     68         }
     69 
     70         notifyDataSetChanged();
     71     }
     72 
     73     @Override
     74     public ContactResultViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
     75         View view = LayoutInflater.from(parent.getContext())
     76                 .inflate(R.layout.contact_result, parent, false);
     77         return new ContactResultViewHolder(view);
     78     }
     79 
     80     @Override
     81     public void onBindViewHolder(ContactResultViewHolder holder, int position) {
     82         holder.bind(mContacts.get(position), getItemCount());
     83     }
     84 
     85     @Override
     86     public int getItemViewType(int position) {
     87         // Only one type of view is created, so no need for an individualized view type.
     88         return 0;
     89     }
     90 
     91     @Override
     92     public int getItemCount() {
     93         return mContacts.size();
     94     }
     95 
     96     @Override
     97     public void setMaxItems(int max) {
     98         // No-op. A PagedListView needs the ItemCap interface to be implemented. However, the
     99         // list of contacts not be limited.
    100     }
    101 }
    102