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/*
* Copyright (C) 2007 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.example.android.apis.app;
// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
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 android.widget.Toast;
/**
* This demonstrates how you can schedule an alarm that causes a service to
* be started. This is useful when you want to schedule alarms that initiate
* long-running operations, such as retrieving recent e-mails.
*/
public class AlarmService extends Activity {
private PendingIntent mAlarmSender;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Create an IntentSender that will launch our service, to be scheduled
// with the alarm manager.
mAlarmSender = PendingIntent.getService(AlarmService.this,
0, new Intent(AlarmService.this, AlarmService_Service.class), 0);
setContentView(R.layout.alarm_service);
// Watch for button clicks.
Button button = (Button)findViewById(R.id.start_alarm);
button.setOnClickListener(mStartAlarmListener);
button = (Button)findViewById(R.id.stop_alarm);
button.setOnClickListener(mStopAlarmListener);
}
private OnClickListener mStartAlarmListener = new OnClickListener() {
public void onClick(View v) {
// We want the alarm to go off 30 seconds from now.
long firstTime = SystemClock.elapsedRealtime();
// Schedule the alarm!
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
firstTime, 30*1000, mAlarmSender);
// Tell the user about what we did.
Toast.makeText(AlarmService.this, R.string.repeating_scheduled,
Toast.LENGTH_LONG).show();
}
};
private OnClickListener mStopAlarmListener = new OnClickListener() {
public void onClick(View v) {
// And cancel the alarm.
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.cancel(mAlarmSender);
// Tell the user about what we did.
Toast.makeText(AlarmService.this, R.string.repeating_unscheduled,
Toast.LENGTH_LONG).show();
}
};
}
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