Java tutorial
/* * Copyright (C) 2013 Fairphone 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 org.fairphone.peaceofmind; import org.fairphone.fairphonepeaceofmindapp.R; import org.fairphone.peaceofmind.data.PeaceOfMindRun; import org.fairphone.peaceofmind.data.PeaceOfMindStats; import org.fairphone.peaceofmind.widget.WidgetProvider; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.app.TaskStackBuilder; import android.appwidget.AppWidgetManager; import android.content.BroadcastReceiver; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.NotificationCompat; public class PeaceOfMindBroadCastReceiver extends BroadcastReceiver { private static final String TAG = PeaceOfMindBroadCastReceiver.class.getSimpleName(); private static final int PEACE_OF_MIND_ON_NOTIFICATION = 0; private static final int PEACE_OF_MIND_INTERRUPTED_NOTIFICATION = 1; private PeaceOfMindStats mCurrentStats; private SharedPreferences mSharedPreferences; private Context mContext; private IDeviceController mDeviceController; @Override public void onReceive(Context context, Intent intent) { mContext = context; setupDeviceController(); String action = intent.getAction(); if (action != null) { // obtains the piece of mind data from shared preferences mSharedPreferences = PreferenceManager.getDefaultSharedPreferences(context); mCurrentStats = PeaceOfMindStats.getStatsFromSharedPreferences(mSharedPreferences); if (action.equals(PeaceOfMindActivity.UPDATE_PEACE_OF_MIND)) { updateTargetTime(intent); } else if (Intent.ACTION_AIRPLANE_MODE_CHANGED.equals(action)) { //only react to this if the app is running if (mCurrentStats.mIsOnPeaceOfMind) { Bundle extras = intent.getExtras(); //if the intent was sent by the system end Peace of mind if (!extras.containsKey(AirplaneModeToggler.PEACE_OF_MIND_TOGGLE)) { endPeaceOfMind(true); } } } else if (Intent.ACTION_SHUTDOWN.equals(action) && mCurrentStats.mIsOnPeaceOfMind) { endPeaceOfMind(true); } else { performTimeTick(); } } else { return; } // update the widgets updateWidget(context); } private void setupDeviceController() { mDeviceController = new AirplaneModeDeviceController(mContext); } private void updateWidget(Context context) { AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context); int[] appWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName(context, WidgetProvider.class)); if (appWidgetIds.length > 0) { new WidgetProvider().onUpdate(context, appWidgetManager, appWidgetIds); } } private void performTimeTick() { long currentTime = System.currentTimeMillis(); long passedTime = 0; if (mCurrentStats.mLastTimePinged != 0) { if (mCurrentStats.mLastTimePinged >= currentTime) { endPeaceOfMind(false); return; } else { passedTime += currentTime - mCurrentStats.mLastTimePinged; } } mCurrentStats.mLastTimePinged = currentTime; if (mCurrentStats.mIsOnPeaceOfMind) { mCurrentStats.mCurrentRun.mPastTime += passedTime; if (mCurrentStats.mCurrentRun.mPastTime >= mCurrentStats.mCurrentRun.mTargetTime) { endPeaceOfMind(false); return; } } PeaceOfMindStats.saveToSharedPreferences(mCurrentStats, mSharedPreferences); // send broadcast to application receiver if (mCurrentStats.mIsOnPeaceOfMind) { Intent tickIntent = new Intent(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_TICK); tickIntent.putExtra(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_TARGET_TIME, mCurrentStats.mCurrentRun.mTargetTime); tickIntent.putExtra(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_PAST_TIME, mCurrentStats.mCurrentRun.mPastTime); mContext.sendBroadcast(tickIntent); } } private void startPeaceOfMind(long targetTime) { long currentTime = System.currentTimeMillis(); mCurrentStats.mIsOnPeaceOfMind = true; mCurrentStats.mLastTimePinged = currentTime; mCurrentStats.mCurrentRun = new PeaceOfMindRun(); mCurrentStats.mCurrentRun.mTimeStarted = currentTime; mCurrentStats.mCurrentRun.mPastTime = 0; mCurrentStats.mCurrentRun.mTargetTime = targetTime; PeaceOfMindStats.saveToSharedPreferences(mCurrentStats, mSharedPreferences); mDeviceController.startPeaceOfMind(); // send broadcast to application receiver Intent intent = new Intent(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_STARTED); intent.putExtra(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_TARGET_TIME, targetTime); mContext.sendBroadcast(intent); } private void updateTargetTime(Intent intent) { long newTargetTime = intent.getExtras().getLong(PeaceOfMindActivity.BROADCAST_TARGET_PEACE_OF_MIND); if (newTargetTime == 0) { if (mCurrentStats.mIsOnPeaceOfMind) { endPeaceOfMind(false); } } else if (mCurrentStats.mIsOnPeaceOfMind) { if (mCurrentStats.mCurrentRun.mPastTime < newTargetTime) { mCurrentStats.mCurrentRun.mTargetTime = newTargetTime; PeaceOfMindStats.saveToSharedPreferences(mCurrentStats, mSharedPreferences); Intent updateIntent = new Intent(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_UPDATED); updateIntent.putExtra(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_TARGET_TIME, mCurrentStats.mCurrentRun.mTargetTime); updateIntent.putExtra(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_PAST_TIME, mCurrentStats.mCurrentRun.mPastTime); mContext.sendBroadcast(updateIntent); } else { endPeaceOfMind(false); } } else { startPeaceOfMind(newTargetTime); setPeaceOfMindIconInNotificationBar(true, false); } } /** * Sets the Peace of mind icon on the notification bar * @param putIcon if true the icon is put otherwise it is removed * @param wasInterrupted when true, an extra notification is sent to inform the user that Peace of mind was ended */ private void setPeaceOfMindIconInNotificationBar(boolean putIcon, boolean wasInterrupted) { NotificationManager manager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); if (putIcon) { //just in case the user didn't clear it manager.cancel(PEACE_OF_MIND_INTERRUPTED_NOTIFICATION); NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext) .setSmallIcon(R.drawable.peace_system_bar_icon) .setContentTitle(mContext.getResources().getString(R.string.app_name)) .setContentText(mContext.getResources().getString(R.string.peace_on_notification)); Intent resultIntent = new Intent(mContext, PeaceOfMindActivity.class); TaskStackBuilder stackBuilder = TaskStackBuilder.create(mContext); // Adds the back stack for the Intent (but not the Intent itself) stackBuilder.addParentStack(PeaceOfMindActivity.class); // Adds the Intent that starts the Activity to the top of the stack stackBuilder.addNextIntent(resultIntent); PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT); builder.setContentIntent(resultPendingIntent); Notification notificationWhileRunnig = builder.build(); notificationWhileRunnig.flags |= Notification.FLAG_NO_CLEAR; // Add notification manager.notify(PEACE_OF_MIND_ON_NOTIFICATION, notificationWhileRunnig); } else { manager.cancel(PEACE_OF_MIND_ON_NOTIFICATION); //send a notification saying that the peace was ended if (wasInterrupted) { NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext) .setSmallIcon(R.drawable.peace_system_bar_icon).setAutoCancel(true) .setContentTitle(mContext.getResources().getString(R.string.app_name)) .setContentText(mContext.getResources().getString(R.string.peace_off_notification)) .setTicker(mContext.getResources().getString(R.string.peace_off_notification)); manager.notify(PEACE_OF_MIND_INTERRUPTED_NOTIFICATION, builder.build()); } } } private void endPeaceOfMind(boolean wasInterrupted) { mCurrentStats.mIsOnPeaceOfMind = false; mCurrentStats.mLastTimePinged = 0; if (mCurrentStats.mCurrentRun != null) { mCurrentStats.mCurrentRun.mTimeStarted = 0; mCurrentStats.mCurrentRun.mPastTime = 0; mCurrentStats.mCurrentRun.mTargetTime = 0; mCurrentStats.mCurrentRun = null; } PeaceOfMindStats.saveToSharedPreferences(mCurrentStats, mSharedPreferences); mDeviceController.endPeaceOfMind(); Intent endIntent = new Intent(PeaceOfMindApplicationBroadcastReceiver.PEACE_OF_MIND_ENDED); mContext.sendBroadcast(endIntent); setPeaceOfMindIconInNotificationBar(false, wasInterrupted); } }