/*
* Copyright (C) 2007 Google Inc.
*
* 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.google.android.samples.app;
// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.google.android.samples.R;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.NotificationManager;
import android.content.Intent;
import android.os.SystemClock;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import java.util.Calendar;
/**
* Example of scheduling one-shot and repeating alarms. See
* {@link OneShotAlarm} for the code run when the one-shot alarm goes off, and
* {@link RepeatingAlarm} for the code run when the repeating alarm goes off.
* <h4>Demo</h4>
App/Service/Alarm Controller
<h4>Source files</h4>
<table class="LinkTable">
<tr>
<td class="LinkColumn">src/com/google/android/samples/app/AlarmController.java</td>
<td class="DescrColumn">The activity that lets you schedule alarms</td>
</tr>
<tr>
<td class="LinkColumn">src/com/google/android/samples/app/OneShotAlarm.java</td>
<td class="DescrColumn">This is an intent receiver that executes when the
one-shot alarm goes off</td>
</tr>
<tr>
<td class="LinkColumn">src/com/google/android/samples/app/RepeatingAlarm.java</td>
<td class="DescrColumn">This is an intent receiver that executes when the
repeating alarm goes off</td>
</tr>
<tr>
<td class="LinkColumn">/res/any/layout/alarm_controller.xml</td>
<td class="DescrColumn">Defines contents of the screen</td>
</tr>
</table>
*/
public class AlarmController extends Activity
{
@Override
protected void onCreate(Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.alarm_controller);
// Watch for button clicks.
Button button = (Button)findViewById(R.id.one_shot);
button.setOnClickListener(mOneShotListener);
button = (Button)findViewById(R.id.start_repeating);
button.setOnClickListener(mStartRepeatingListener);
button = (Button)findViewById(R.id.stop_repeating);
button.setOnClickListener(mStopRepeatingListener);
}
private OnClickListener mOneShotListener = new OnClickListener()
{
public void onClick(View v)
{
// This is the intent receiver who will be run when the alarm
// goes off. We just create an intent with an explicit class name
// to have our own receiver (which has been published in
// AndroidManifest.xml) instantiated and called.
Intent intent = new Intent(AlarmController.this, OneShotAlarm.class);
// We want the alarm to go off 30 seconds from now.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 30);
// Schedule the alarm!
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), intent);
// Tell the user about what we did.
NotificationManager nm = (NotificationManager)
getSystemService(NOTIFICATION_SERVICE);
nm.notifyWithText(R.string.one_shot_scheduled,
getText(R.string.one_shot_scheduled),
NotificationManager.LENGTH_LONG,
null);
}
};
private OnClickListener mStartRepeatingListener = new OnClickListener()
{
public void onClick(View v)
{
// This is the intent receiver who will be run when the alarm
// goes off. We just create an intent with an explicit class name
// to have our own receiver (which has been published in
// AndroidManifest.xml) instantiated and called.
Intent intent = new Intent(AlarmController.this, RepeatingAlarm.class);
// We want the alarm to go off 30 seconds from now.
long firstTime = SystemClock.elapsedRealtime();
firstTime += 15*1000;
// Schedule the alarm!
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
firstTime, 15*1000, intent);
// Tell the user about what we did.
NotificationManager nm = (NotificationManager)
getSystemService(NOTIFICATION_SERVICE);
nm.notifyWithText(R.string.repeating_scheduled,
getText(R.string.repeating_scheduled),
NotificationManager.LENGTH_LONG,
null);
}
};
private OnClickListener mStopRepeatingListener = new OnClickListener()
{
public void onClick(View v)
{
// Create the same intent that was scheduled.
Intent intent = new Intent(AlarmController.this, RepeatingAlarm.class);
// And cancel the alarm.
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.cancel(intent);
// Tell the user about what we did.
NotificationManager nm = (NotificationManager)
getSystemService(NOTIFICATION_SERVICE);
nm.cancel(R.string.repeating_scheduled);
nm.notifyWithText(R.string.repeating_unscheduled,
getText(R.string.repeating_unscheduled),
NotificationManager.LENGTH_SHORT,
null);
}
};
}
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