AccountSelectorAdapter.java revision 7ab6f25e5417bdcfd514ddb57677f0e778aa6786 
1/*
2 * Copyright (C) 2010 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.android.email.activity;
18
19import com.android.email.data.NoAutoRequeryCursorLoader;
20import com.android.email.provider.EmailContent;
21
22import android.content.Context;
23import android.content.Loader;
24import android.database.Cursor;
25import android.view.LayoutInflater;
26import android.view.View;
27import android.view.ViewGroup;
28import android.widget.CursorAdapter;
29import android.widget.TextView;
30
31/**
32 * Adapter for the account selector on {@link MessageListXL}.
33 *
34 * TODO Test it!
35 * TODO Use layout?  Or use the standard resources that ActionBarDemo uses?
36 * TODO Revisit the sort order when we get more detailed UI spec.  (current sort order makes things
37 * simpler for now.)  Maybe we can just use SimpleCursorAdapter.
38 *
39 * TODO We actually don't need the auto-requery.  Just refresh it when we modify accounts.
40 */
41public class AccountSelectorAdapter extends CursorAdapter {
42    private static final String[] PROJECTION = new String[] {
43        EmailContent.RECORD_ID,
44        EmailContent.Account.DISPLAY_NAME,
45        EmailContent.Account.EMAIL_ADDRESS
46    };
47
48    private static final int ID_COLUMN = 0;
49    private static final int DISPLAY_NAME_COLUMN = 1;
50    private static final int EMAIL_ADDRESS_COLUMN = 2;
51
52    /** Sort order.  Show the default account first. */
53    private static final String ORDER_BY =
54            EmailContent.Account.IS_DEFAULT + " desc, " + EmailContent.Account.RECORD_ID;
55
56    private final LayoutInflater mInflater;
57
58    public static Loader<Cursor> createLoader(Context context) {
59        return new NoAutoRequeryCursorLoader(context, EmailContent.Account.CONTENT_URI, PROJECTION,
60                null, null, ORDER_BY);
61    }
62
63    public AccountSelectorAdapter(Context context, Cursor c) {
64        super(context, c, 0 /* no auto-requery */);
65        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
66    }
67
68    @Override
69    public View getDropDownView(int position, View convertView, ViewGroup parent) {
70        View view = mInflater.inflate(android.R.layout.simple_spinner_dropdown_item, null);
71        TextView textView = (TextView) view.findViewById(android.R.id.text1);
72        textView.setText(getAccountName(position));
73        return view;
74    }
75
76    @Override
77    public void bindView(View view, Context context, Cursor cursor) {
78        TextView textView = (TextView) view.findViewById(android.R.id.text1);
79        textView.setText(getAccountName(cursor));
80    }
81
82    @Override
83    public View newView(Context context, Cursor cursor, ViewGroup parent) {
84        return mInflater.inflate(android.R.layout.simple_spinner_item, null);
85    }
86
87    /** @return Account id extracted from a Cursor. */
88    public static long getAccountId(Cursor c) {
89        return c.getLong(ID_COLUMN);
90    }
91
92    private String getAccountName(int position) {
93        final Cursor c = getCursor();
94        return c.moveToPosition(position) ? getAccountName(c) : null;
95    }
96
97    /** @return Account name extracted from a Cursor. */
98    public static String getAccountName(Cursor cursor) {
99        return cursor.getString(EMAIL_ADDRESS_COLUMN);
100    }
101}
102