| /* |
| * 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(); |
| |
| } |
| }; |
| } |