| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.settings; |
| |
| import android.app.ActivityManager; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.UserHandle; |
| |
| public abstract class CurrentUserTracker extends BroadcastReceiver { |
| |
| private Context mContext; |
| private int mCurrentUserId; |
| |
| public CurrentUserTracker(Context context) { |
| mContext = context; |
| } |
| |
| public int getCurrentUserId() { |
| return mCurrentUserId; |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (Intent.ACTION_USER_SWITCHED.equals(intent.getAction())) { |
| int oldUserId = mCurrentUserId; |
| mCurrentUserId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0); |
| if (oldUserId != mCurrentUserId) { |
| onUserSwitched(mCurrentUserId); |
| } |
| } |
| } |
| |
| public void startTracking() { |
| mCurrentUserId = ActivityManager.getCurrentUser(); |
| IntentFilter filter = new IntentFilter(Intent.ACTION_USER_SWITCHED); |
| mContext.registerReceiver(this, filter); |
| } |
| |
| public void stopTracking() { |
| mContext.unregisterReceiver(this); |
| } |
| |
| public abstract void onUserSwitched(int newUserId); |
| |
| public boolean isCurrentUserOwner() { |
| return mCurrentUserId == UserHandle.USER_OWNER; |
| } |
| } |