blob: 122f81e2c61bc5c17435321b4ba6ce5dbcdfdac9 [file] [log] [blame]
Michael Wright0087a142013-02-05 16:29:39 -08001/*
2 * Copyright (C) 2013 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.systemui.settings;
18
19import android.app.ActivityManager;
20import android.content.BroadcastReceiver;
21import android.content.Context;
22import android.content.Intent;
23import android.content.IntentFilter;
24
25public abstract class CurrentUserTracker extends BroadcastReceiver {
26
27 private Context mContext;
28 private int mCurrentUserId;
29
30 public CurrentUserTracker(Context context) {
31 IntentFilter filter = new IntentFilter(Intent.ACTION_USER_SWITCHED);
32 context.registerReceiver(this, filter);
33 mCurrentUserId = ActivityManager.getCurrentUser();
34 mContext = context;
35 }
36
37 public int getCurrentUserId() {
38 return mCurrentUserId;
39 }
40
41 @Override
42 public void onReceive(Context context, Intent intent) {
43 if (Intent.ACTION_USER_SWITCHED.equals(intent.getAction())) {
44 int oldUserId = mCurrentUserId;
45 mCurrentUserId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0);
46 if (oldUserId != mCurrentUserId) {
47 onUserSwitched(mCurrentUserId);
48 }
49 }
50 }
51
52 public void stopTracking() {
53 mContext.unregisterReceiver(this);
54 }
55
56 public abstract void onUserSwitched(int newUserId);
57}