Develop Reference

Multiple Notification not working

I have included a NotifyService in my App to show particular Notification on a selected particular Date via a Date Picker...
The Problem is that the Latest Notification is only fired & not the Previous one...
I have also tried giving a Unique Notification Id but still it didn't work...
Heres the MainActivity -
public class MainActivity extends Activity {
private ScheduleClient scheduleClient;
private DatePicker picker;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
scheduleClient = new ScheduleClient(this);
scheduleClient.doBindService();
picker = (DatePicker) findViewById(R.id.scheduleTimePicker);
}
public void onDateSelectedButtonClick(View v){
int id = MyApp.preferences.getInt("notif", 0);
id++;
MyApp.preferences.edit().putInt( "notif" , id).apply();
int day = picker.getDayOfMonth();
int month = picker.getMonth();
int year = picker.getYear();
Calendar c = Calendar.getInstance();
c.set(year, month, day);
c.set(Calendar.HOUR_OF_DAY, 0);
c.set(Calendar.MINUTE, 0);
c.set(Calendar.SECOND, 0);
// Ask our service to set an alarm for that date, this activity talks to the client that talks to the service
scheduleClient.setAlarmForNotification(c);
Toast.makeText(this, "Notification set for: "+ day +"/"+ (month+1) +"/"+ year, Toast.LENGTH_SHORT).show();
}
#Override
protected void onStop() {
if(scheduleClient != null)
scheduleClient.doUnbindService();
super.onStop();
}
}
ScheduleClient -
public class ScheduleClient {
private ScheduleService mBoundService;
private Context mContext;
private boolean mIsBound;
public ScheduleClient(Context context) {
mContext = context;
}
public void doBindService() {
mContext.bindService(new Intent(mContext, ScheduleService.class), mConnection, Context.BIND_AUTO_CREATE);
mIsBound = true;
}
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
mBoundService = ((ScheduleService.ServiceBinder) service).getService();
}
public void onServiceDisconnected(ComponentName className) {
mBoundService = null;
}
};
public void setAlarmForNotification(Calendar c){
mBoundService.setAlarm(c);
}
public void doUnbindService() {
if (mIsBound) {
// Detach our existing connection.
mContext.unbindService(mConnection);
mIsBound = false;
}
}
}
Schedule Service -
public class ScheduleService extends Service{
public class ServiceBinder extends Binder {
ScheduleService getService() {
return ScheduleService.this;
}
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.i("ScheduleService", "Received start id " + startId + ": " + intent);
// We want this service to continue running until it is explicitly stopped, so return sticky.
return START_STICKY;
}
#Override
public IBinder onBind(Intent intent) {
return mBinder;
}
// This is the object that receives interactions from clients. See
private final IBinder mBinder = new ServiceBinder();
public void setAlarm(Calendar c) {
new AlarmTask(this, c).run();
}
}
AlarmTask -
public class AlarmTask implements Runnable{
private final Calendar date;
private final AlarmManager am;
private final Context context;
public AlarmTask(Context context, Calendar date) {
this.context = context;
this.am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
this.date = date;
}
#Override
public void run() {
Intent intent = new Intent(context, NotifyService.class);
intent.putExtra(NotifyService.INTENT_NOTIFY, true);
PendingIntent pendingIntent = PendingIntent.getService(context, 0, intent, 0);
// Sets an alarm - note this alarm will be lost if the phone is turned off and on again
am.set(AlarmManager.RTC, date.getTimeInMillis(), pendingIntent);
}
}
& Finally the NotifyService -
public class NotifyService extends Service {
/**
* Class for clients to access
*/
public class ServiceBinder extends Binder {
NotifyService getService() {
return NotifyService.this;
}
}
// Unique id to identify the notification.
public static final String INTENT_NOTIFY = "com.blundell.tut.service.INTENT_NOTIFY";
private NotificationManager mNM;
private Notification notif;
#Override
public void onCreate() {
Log.i("NotifyService", "onCreate()");
mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.i("LocalService", "Received start id " + startId + ": " + intent);
if(intent.getBooleanExtra(INTENT_NOTIFY, false))
showNotification();
return START_NOT_STICKY;
}
#Override
public IBinder onBind(Intent intent) {
return mBinder;
}
// This is the object that receives interactions from clients
private final IBinder mBinder = new ServiceBinder();
/**
* Creates a notification and shows it in the OS drag-down status bar
*/
private void showNotification() {
CharSequence title = "Alarm!!";
int icon = R.drawable.ic_dialog_alert;
CharSequence text = "Your notification time is upon us.";
Notification.Builder notification = new Notification.Builder(NotifyService.this);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, SecondActivity.class), 0);
int Notif = MyApp.preferences.getInt("notif", 1);
notification.setContentTitle(title)
.setContentText(text)
.setSmallIcon(icon)
.setContentIntent(contentIntent);
notif = notification.getNotification();
notif.flags |= Notification.FLAG_AUTO_CANCEL;
mNM.notify(Notif, notif);
stopSelf();
}}
So here, when I select a Day for e.g. 31/12/2017, set the Notif & then again set another to 1/1/2018 then the 1st one is removed I guess...
Any help will be appreciated :)

In your NotifyService class, the notify() method that belongs to NotificationManager object mNM needs to a different id for the notification otherwise it will replace existing notification. Read NotificationManager.notify() docs here

starting BroadcastReceiver from Service when app destroy?

i have a probleme with BroadcastReceiver & Service in my application
.......
i have an
* activity ( MainActivity )
* service ( NotifyService )
* Receiver ( NotifyBroadcast )
service start from activity and then the receiver start from service
everything is good when my app was open , but when i clear it (destroyed) ,receiver stop doing its job ( just a toast message )
here is my code :
MainActivity ..
if( !NotifyService.ServiceIsRun){
NotifyService.ServiceIsRun=true;
startService(new Intent(this, NotifyService.class));
}
NotifyService ..
public class NotifyService extends Service {
public static boolean ServiceIsRun=false;
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Timer t = new Timer();
if(ServiceIsRun){
t.scheduleAtFixedRate(new TimerTask() {
#Override
public void run() {
Log.e("broadService", "hello from Service"+i +"new :"+lastnew +"article :"+lastarticle);
i++;
Intent intent = new Intent( "com.latestBabiaNews" );
sendBroadcast(intent);
}
},
//Set how long before to start calling the TimerTask (in milliseconds)
0,
//Set the amount of time between each execution (in milliseconds)
20000);
}
return START_STICKY;
}
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
}
NotifyBroadcast ..
public class NotifyBroadcast extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
final Bundle bundle = intent.getExtras();
if (intent.getAction().equalsIgnoreCase("com.latestBabiaNews")){
Toast.makeText(context,"hello from Broadcast",Toast.LENGTH_SHORT).show();
}
}
}
And in my Manifest ..
<service android:name=".NotifyService"></service>
<receiver android:name=".NotifyBroadcast">
<intent-filter>
<action android:name="com.latestBabiaNews"></action>
</intent-filter>
</receiver>
..........
finally i can show the Toast message when app was app was opened , but when i clear it i can't show anything !

To prevent service kill use it as foreground service. To perform it as foreground use this (inside Service class):
#Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
fg();
}
private void fg() {
Intent intent = launchIntent(this);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent, 0);
mBuilder = new NotificationCompat.Builder(this);
mBuilder.setContentTitle(getResources().getString(R.string.app_alias))
.setContentText(getResources().getString(R.string.app_alias))
.setContentIntent(pIntent);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
mBuilder.setSmallIcon(someicon);
} else {
mBuilder.setSmallIcon(someicon);
mBuilder.setColor(somecolo);
}
noti = mBuilder.build();
noti.flags = Notification.FLAG_ONGOING_EVENT | Notification.FLAG_NO_CLEAR;
startForeground(_.ID, noti);
}
to stop, this:
#Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
stopForeground(true);
}
EDIT
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.support.v4.content.WakefulBroadcastReceiver;
public class MyBroadCast extends WakefulBroadcastReceiver {
public static final String INTENT_FILTER = "ru.ps.vm.BRTattva";
#Override
public void onReceive(Context ctx, Intent intent) {
Toast.makeText(context,"hello from Broadcast",Toast.LENGTH_SHORT).show();
}
}
To start use this:
public static void startbyalarm(Context ctx, long nexttime, boolean autoStart, SharedPreferences settings) {
AlarmManager am = (AlarmManager) ctx.getSystemService(Activity.ALARM_SERVICE);
Intent intent = new Intent(MyBroadcastReceiver.INTENT_FILTER);
if (autoStart)
intent.putExtra(_.AUTOLOADSERVICE,true);
PendingIntent pi = PendingIntent.getBroadcast(ctx, _.intentalarmindex, intent, PendingIntent.FLAG_CANCEL_CURRENT);
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
if (currentapiVersion < android.os.Build.VERSION_CODES.KITKAT){
am.set(AlarmManager.RTC_WAKEUP, nexttime, pi);
} else {
if (currentapiVersion < android.os.Build.VERSION_CODES.M) {
am.setExact(AlarmManager.RTC_WAKEUP, nexttime, pi);
} else {
am.setExactAndAllowWhileIdle(wakeup?AlarmManager.RTC_WAKEUP:AlarmManager.RTC, nexttime, pi);
}
}
//or use repeating:
//am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 1000 * 5 , pi);
}

The same push notification keeps appearing whenever i open my apps

The same push notification keeps appearing whenever I reopen my apps although i have already cleared the notification in the notification bar. Secondly how do I implement a service so that my apps can receive notification although the apps is closed.
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
SharedPreferences sharedPreferences = getSharedPreferences(Constants.SHARED_PREF, MODE_PRIVATE);
String id = sharedPreferences.getString(Constants.UNIQUE_ID, null);
Firebase firebase = new Firebase(Constants.FIREBASE_APP + id);
firebase.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(DataSnapshot snapshot) {
String msg = snapshot.child("msg").getValue().toString();
if (msg.equals("none"))
return;
showNotification(msg);
}
#Override
public void onCancelled(FirebaseError firebaseError) {
Log.e("The read failed: ", firebaseError.getMessage());
}
});
return START_STICKY;
}
private void showNotification(String msg){
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setSmallIcon(R.mipmap.ic_launcher);
Intent intent = new Intent(NotificationListener.this,ViewRecord.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
builder.setContentIntent(pendingIntent);
Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
builder.setSound(alarmSound);
builder.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher));
builder.setContentTitle("Notifier");
builder.setContentText(msg);
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
builder.setAutoCancel(true);
notificationManager.notify(1, builder.build());
}
my service code as below. and i call the service at onCreate function in the 1st activity..
public class MyService extends Service {
public MyService() {
}
#Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}
#Override
public void onCreate() {
Toast.makeText(this, "The new Service was Created", Toast.LENGTH_LONG).show();
}
#Override
public void onStart(Intent intent, int startId) {
// For time consuming an long tasks you can launch a new thread here...
Toast.makeText(this, " Service Started", Toast.LENGTH_LONG).show();
}
}

Posting this as answer since code in comment wud make it look unstructured
isServiceStarted
public class MainActivity extends AppCompatActivity {
private SharedPreferences servicePref;
private boolean isServiceStarted;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
servicePref = getSharedPreferences("servicePref", MODE_PRIVATE);
isServiceStarted = servicePref.getBoolean("isServiceStarted", false);
if (!isServiceStarted) {
startService(new Intent(this, MyService.class));
servicePref.edit().putBoolean("isServiceStarted",true).apply();
}
}
and in ur MyService.class inside onStop method do this without fail.
public class MyService extends Service {
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onDestroy() {
super.onDestroy();
// save value as false when service gets destroyed so as to start again when u open the app
getSharedPreferences("servicePref", MODE_PRIVATE).edit().putBoolean("isServiceStarted",false).apply();
}
}

override the onStartCommand() method and then return START_STICKY.

CountDownTimer inside Service stopped after application killed - Android

I'm new to services and BroadcastReceiver so maybe this question is newbie, but I didn't found the solution for my question after a long search on the web.
I need to run a CountDownTimer inside service, so the time keep moving even the application was finished.
In my code I based on THIS EXAMPLE.
My code works fine, but after the application is finished the CountDownTimer stopped(The service doesn't destroyed, just the timer).
I tried to implement it in different ways, but nothing works for me.
This is the part of my code that relevant:
AlarmReciver:
public class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Intent background = new Intent(context, BackgroundService.class);
Bundle bundle = intent.getExtras();
background.putExtra("time", bundle.getInt("time"));
context.startService(background);
}
}
BackgroundService :
public class BackgroundService extends Service {
private final static String TAG = "BroadcastService";
private CountDownTimer cdt = null;
private Bundle bundle;
private boolean isRunning;
private Context context;
private int timeInMili;
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onCreate() {
this.context = this;
this.isRunning = false;
}
#Override
public void onDestroy() {
//cdt.cancel();
Log.i(TAG, "Timer cancelled");
super.onDestroy();
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
bundle = intent.getExtras();
timeInMili = bundle.getInt("time");
if(!this.isRunning) {
this.isRunning = true;
}
cdt = new CountDownTimer(timeInMili, 1000) {
#Override
public void onTick(long millisUntilFinished) {
Log.i(TAG, "Countdown seconds remaining: " + millisUntilFinished / 1000);
}
#Override
public void onFinish() {
Log.i(TAG, "Timer finished");
stopSelf();
}
};
cdt.start();
return START_STICKY;
}
}
MainActivity (extends FragmentActivity):
public void StartBackgroundAlarm(int timeInMili)
{
Intent alarm = new Intent(this, AlarmReceiver.class);
alarm.putExtra("time", timeInMili);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, alarm, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime(), pendingIntent);
}
MANIFEST :
<service android:enabled="true" android:name= "com.MES.yo.servicemanager.BackgroundService" />
<receiver android:name="com.MES.yo.servicemanager.AlarmReceiver"></receiver>

How to create persistent alarms even after rebooting

Presently, I am working on app that works like "To Do Task List". I have successfully implemented the NotificationService and SchedularService in my application. Also I am getting the alerts(Notifications) at the time set for the tasks.
Here are my queries as below:
With this code will my alarms will be deleted after reboot ? If yes, how to overcome this.
I have kept the Priority feature for the tasks. But i want the mechanism such that if user selects priority "High" then he should receive notifications thrice, say, before 30 minutes, before 15 minutes and on the time set. How to achieve this ?
I want to set Phone's vibrate feature when Notifications are raised. How to achieve this ?
And i want to know about, what can be done for the deprecated methods and constructor in NotifyService.java. Thesse are deprecated in API level 11: Notification notification = new Notification(icon, text, time); and notification.setLatestEventInfo(this, title, text, contentIntent);. On developer.android.com, they have suggested to Use Notification.Builder instead. So how to make my app compatible with all the API levels.
Here's my snippet code for scheduling alarm:
...
scheduleClient.setAlarmForNotification(c, tmp_task_id);
...
Here's the class ScheduleClient.java:
public class ScheduleClient {
private ScheduleService mBoundService;
private Context mContext;
private boolean mIsBound;
public ScheduleClient(Context context)
{
mContext = context;
}
public void doBindService()
{
mContext.bindService(new Intent(mContext, ScheduleService.class), mConnection, Context.BIND_AUTO_CREATE);
mIsBound = true;
}
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
mBoundService = ((ScheduleService.ServiceBinder) service).getService();
}
public void onServiceDisconnected(ComponentName className) {
mBoundService = null;
}
};
public void setAlarmForNotification(Calendar c, int tmp_task_id){
mBoundService.setAlarm(c, tmp_task_id);
}
public void doUnbindService() {
if (mIsBound)
{
mContext.unbindService(mConnection);
mIsBound = false;
}
}
}
Here's the ScheduleService.java:
public class ScheduleService extends Service {
int task_id;
public class ServiceBinder extends Binder {
ScheduleService getService() {
return ScheduleService.this;
}
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
return START_STICKY;
}
#Override
public IBinder onBind(Intent intent) {
return mBinder;
}
private final IBinder mBinder = new ServiceBinder();
public void setAlarm(Calendar c, int tmp_task_id) {
new AlarmTask(this, c, tmp_task_id).run();
}
}
Here's the AlarmTask.java:
public class AlarmTask implements Runnable{
private final Calendar date;
private final AlarmManager am;
private final Context context;
int task_id;
public AlarmTask(Context context, Calendar date, int tmp_task_id) {
this.context = context;
this.am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
this.date = date;
task_id = tmp_task_id;
}
#Override
public void run() {
Intent intent = new Intent(context, NotifyService.class);
intent.putExtra(NotifyService.INTENT_NOTIFY, true);
intent.putExtra("task_id", task_id);
PendingIntent pendingIntent = PendingIntent.getService(context, 0, intent, 0);
am.set(AlarmManager.RTC, date.getTimeInMillis(), pendingIntent);
}
}
Here's the NotifyService.java:
public class NotifyService extends Service {
public class ServiceBinder extends Binder
{
NotifyService getService()
{
return NotifyService.this;
}
}
int task_id;
private static final int NOTIFICATION = 123;
public static final String INTENT_NOTIFY = "com.todotaskmanager.service.INTENT_NOTIFY";
private NotificationManager mNM;
SQLiteDatabase database;
#Override
public void onCreate() {
mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
String tmp_task_brief = null;
task_id = intent.getIntExtra("task_id", 0);
loadDatabase();
Cursor cursor = database.query("task_info", new String[]{"task_brief"}, "task_id=?", new String[]{task_id+""}, null, null, null);
while(cursor.moveToNext())
{
tmp_task_brief = cursor.getString(0);
}
cursor.close();
if(intent.getBooleanExtra(INTENT_NOTIFY, false))
showNotification(tmp_task_brief);
return START_NOT_STICKY;
}
#Override
public IBinder onBind(Intent intent) {
return mBinder;
}
private final IBinder mBinder = new ServiceBinder();
private void showNotification(String tmp_task_brief) {
CharSequence title = "To Do Task Notification!!";
int icon = R.drawable.e7ca62cff1c58b6709941e51825e738f;
CharSequence text = tmp_task_brief;
long time = System.currentTimeMillis();
Notification notification = new Notification(icon, text, time);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, TaskDetails.class), 0);
notification.setLatestEventInfo(this, title, text, contentIntent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
mNM.notify(NOTIFICATION, notification);
stopSelf();
}
void loadDatabase()
{
database = openOrCreateDatabase("ToDoDatabase.db",
SQLiteDatabase.OPEN_READWRITE, null);
}
}

With this code will my alarms will be deleted after reboot ? If yes, how to overcome this.
Yes alarm will get deleted, to overcome this, you need to use Android's Component called BroadcastReceiver as follows,
First, you need the permission in your manifest:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
Also, in your manifest, define your service and listen for the boot-completed action:
<receiver
android:name=".receiver.StartMyServiceAtBootReceiver"
android:enabled="true"
android:exported="true"
android:label="StartMyServiceAtBootReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
Then you need to define the receiver that will get the BOOT_COMPLETED action and start your service.
public class StartMyServiceAtBootReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
Intent serviceIntent = new Intent("com.myapp.NotifyService");
context.startService(serviceIntent);
}
}
}
And now your service should be running when the phone starts up.
2 For Vibration
Again you need to define a permission in AndroidManifest.xml file as follows,
<uses-permission android:name="android.permission.VIBRATE"/>
Here is the code for vibration,
// Get instance of Vibrator from current Context
Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
// Vibrate for 300 milliseconds
v.vibrate(300);