1 /*
2  * Copyright (C) 2007 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.example.android.apis.view;
18 
19 import com.example.android.apis.R;
20 
21 import android.app.Activity;
22 import android.content.ContentResolver;
23 import android.content.Context;
24 import android.database.Cursor;
25 import android.net.Uri;
26 import android.os.Bundle;
27 import android.provider.ContactsContract.Contacts;
28 import android.view.LayoutInflater;
29 import android.view.View;
30 import android.view.ViewGroup;
31 import android.widget.AutoCompleteTextView;
32 import android.widget.CursorAdapter;
33 import android.widget.FilterQueryProvider;
34 import android.widget.Filterable;
35 import android.widget.TextView;
36 
37 public class AutoComplete4 extends Activity {
38     @Override
onCreate(Bundle savedInstanceState)39     protected void onCreate(Bundle savedInstanceState) {
40         super.onCreate(savedInstanceState);
41         setContentView(R.layout.autocomplete_4);
42 
43         ContentResolver content = getContentResolver();
44         Cursor cursor = content.query(Contacts.CONTENT_URI,
45                 CONTACT_PROJECTION, null, null, null);
46 
47         ContactListAdapter adapter = new ContactListAdapter(this, cursor);
48 
49         AutoCompleteTextView textView = (AutoCompleteTextView)
50                 findViewById(R.id.edit);
51         textView.setAdapter(adapter);
52     }
53 
54     // XXX compiler bug in javac 1.5.0_07-164, we need to implement Filterable
55     // to make compilation work
56     public static class ContactListAdapter extends CursorAdapter implements Filterable {
ContactListAdapter(Context context, Cursor c)57         public ContactListAdapter(Context context, Cursor c) {
58             super(context, c);
59             mContent = context.getContentResolver();
60         }
61 
62         @Override
newView(Context context, Cursor cursor, ViewGroup parent)63         public View newView(Context context, Cursor cursor, ViewGroup parent) {
64             final LayoutInflater inflater = LayoutInflater.from(context);
65             final TextView view = (TextView) inflater.inflate(
66                     android.R.layout.simple_dropdown_item_1line, parent, false);
67             view.setText(cursor.getString(COLUMN_DISPLAY_NAME));
68             return view;
69         }
70 
71         @Override
bindView(View view, Context context, Cursor cursor)72         public void bindView(View view, Context context, Cursor cursor) {
73             ((TextView) view).setText(cursor.getString(COLUMN_DISPLAY_NAME));
74         }
75 
76         @Override
convertToString(Cursor cursor)77         public String convertToString(Cursor cursor) {
78             return cursor.getString(COLUMN_DISPLAY_NAME);
79         }
80 
81         @Override
runQueryOnBackgroundThread(CharSequence constraint)82         public Cursor runQueryOnBackgroundThread(CharSequence constraint) {
83             FilterQueryProvider filter = getFilterQueryProvider();
84             if (filter != null) {
85                 return filter.runQuery(constraint);
86             }
87 
88             Uri uri = Uri.withAppendedPath(
89                     Contacts.CONTENT_FILTER_URI,
90                     Uri.encode(constraint.toString()));
91             return mContent.query(uri, CONTACT_PROJECTION, null, null, null);
92         }
93 
94         private ContentResolver mContent;
95     }
96 
97     public static final String[] CONTACT_PROJECTION = new String[] {
98         Contacts._ID,
99         Contacts.DISPLAY_NAME
100     };
101 
102     private static final int COLUMN_DISPLAY_NAME = 1;
103 }