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/*
* Copyright (C) 2014 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.statusbar.policy;
import android.app.AlarmClockInfo;
import android.app.AlarmManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.UserHandle;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
public class NextAlarmController extends BroadcastReceiver {
private final ArrayList<NextAlarmChangeCallback> mChangeCallbacks = new ArrayList<>();
private AlarmManager mAlarmManager;
private AlarmClockInfo mNextAlarm;
public NextAlarmController(Context context) {
mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_USER_SWITCHED);
filter.addAction(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED);
context.registerReceiver(this, filter);
updateNextAlarm();
}
public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
pw.println("NextAlarmController state:");
pw.print(" mNextAlarm="); pw.println(mNextAlarm);
}
public void addStateChangedCallback(NextAlarmChangeCallback cb) {
mChangeCallbacks.add(cb);
cb.onNextAlarmChanged(mNextAlarm);
}
public void removeStateChangedCallback(NextAlarmChangeCallback cb) {
mChangeCallbacks.remove(cb);
}
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (action.equals(Intent.ACTION_USER_SWITCHED)
|| action.equals(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED)) {
updateNextAlarm();
}
}
private void updateNextAlarm() {
mNextAlarm = mAlarmManager.getNextAlarmClock(UserHandle.USER_CURRENT);
fireNextAlarmChanged();
}
private void fireNextAlarmChanged() {
int n = mChangeCallbacks.size();
for (int i = 0; i < n; i++) {
mChangeCallbacks.get(i).onNextAlarmChanged(mNextAlarm);
}
}
public interface NextAlarmChangeCallback {
void onNextAlarmChanged(AlarmClockInfo nextAlarm);
}
}
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