Java tutorial
/* * Copyright 2015 Blanyal D'Souza. * * 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 cn.studyjams.s2.sj0119.NForget; import android.app.AlarmManager; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.graphics.BitmapFactory; import android.media.RingtoneManager; import android.os.SystemClock; import android.support.v4.app.NotificationCompat; import android.support.v4.content.WakefulBroadcastReceiver; import java.util.Calendar; public class AlarmReceiver extends WakefulBroadcastReceiver { AlarmManager mAlarmManager; PendingIntent mPendingIntent; @Override public void onReceive(Context context, Intent intent) { int mReceivedID = Integer.parseInt(intent.getStringExtra(ReminderEditActivity.EXTRA_REMINDER_ID)); // Get notification title from Reminder Database ReminderDatabase rb = new ReminderDatabase(context); Reminder reminder = rb.getReminder(mReceivedID); String mTitle = reminder.getTitle(); // Create intent to open ReminderEditActivity on notification click Intent editIntent = new Intent(context, ReminderEditActivity.class); editIntent.putExtra(ReminderEditActivity.EXTRA_REMINDER_ID, Integer.toString(mReceivedID)); PendingIntent mClick = PendingIntent.getActivity(context, mReceivedID, editIntent, PendingIntent.FLAG_UPDATE_CURRENT); // Create Notification NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context) .setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcher)) .setSmallIcon(R.drawable.ic_alarm_on_white_24dp) .setContentTitle(context.getResources().getString(R.string.app_name)).setTicker(mTitle) .setContentText(mTitle).setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)) .setContentIntent(mClick).setAutoCancel(true).setOnlyAlertOnce(true); NotificationManager nManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); nManager.notify(mReceivedID, mBuilder.build()); } public void setAlarm(Context context, Calendar calendar, int ID) { mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); // Put Reminder ID in Intent Extra Intent intent = new Intent(context, AlarmReceiver.class); intent.putExtra(ReminderEditActivity.EXTRA_REMINDER_ID, Integer.toString(ID)); mPendingIntent = PendingIntent.getBroadcast(context, ID, intent, PendingIntent.FLAG_CANCEL_CURRENT); // Calculate notification time Calendar c = Calendar.getInstance(); long currentTime = c.getTimeInMillis(); long diffTime = calendar.getTimeInMillis() - currentTime; // Start alarm using notification time mAlarmManager.set(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + diffTime, mPendingIntent); // Restart alarm if device is rebooted ComponentName receiver = new ComponentName(context, BootReceiver.class); PackageManager pm = context.getPackageManager(); pm.setComponentEnabledSetting(receiver, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP); } public void setRepeatAlarm(Context context, Calendar calendar, int ID, long RepeatTime) { mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); // Put Reminder ID in Intent Extra Intent intent = new Intent(context, AlarmReceiver.class); intent.putExtra(ReminderEditActivity.EXTRA_REMINDER_ID, Integer.toString(ID)); mPendingIntent = PendingIntent.getBroadcast(context, ID, intent, PendingIntent.FLAG_CANCEL_CURRENT); // Calculate notification timein Calendar c = Calendar.getInstance(); long currentTime = c.getTimeInMillis(); long diffTime = calendar.getTimeInMillis() - currentTime; // Start alarm using initial notification time and repeat interval time mAlarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + diffTime, RepeatTime, mPendingIntent); // Restart alarm if device is rebooted ComponentName receiver = new ComponentName(context, BootReceiver.class); PackageManager pm = context.getPackageManager(); pm.setComponentEnabledSetting(receiver, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP); } public void cancelAlarm(Context context, int ID) { mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); // Cancel Alarm using Reminder ID mPendingIntent = PendingIntent.getBroadcast(context, ID, new Intent(context, AlarmReceiver.class), 0); mAlarmManager.cancel(mPendingIntent); // Disable alarm ComponentName receiver = new ComponentName(context, BootReceiver.class); PackageManager pm = context.getPackageManager(); pm.setComponentEnabledSetting(receiver, PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP); } }