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
17package com.example.android.apis.view;
18
19import com.example.android.apis.R;
20
21import android.app.Activity;
22import android.content.ContentResolver;
23import android.content.Context;
24import android.database.Cursor;
25import android.net.Uri;
26import android.os.Bundle;
27import android.provider.ContactsContract.Contacts;
28import android.view.LayoutInflater;
29import android.view.View;
30import android.view.ViewGroup;
31import android.widget.AutoCompleteTextView;
32import android.widget.CursorAdapter;
33import android.widget.FilterQueryProvider;
34import android.widget.Filterable;
35import android.widget.TextView;
36
37public class AutoComplete4 extends Activity {
38    @Override
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 {
57        public ContactListAdapter(Context context, Cursor c) {
58            super(context, c);
59            mContent = context.getContentResolver();
60        }
61
62        @Override
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
72        public void bindView(View view, Context context, Cursor cursor) {
73            ((TextView) view).setText(cursor.getString(COLUMN_DISPLAY_NAME));
74        }
75
76        @Override
77        public String convertToString(Cursor cursor) {
78            return cursor.getString(COLUMN_DISPLAY_NAME);
79        }
80
81        @Override
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}