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Alarm manager executing after every app lauch instead of set period

I've set an alarm manager to download web content every 24h at 10:40am but apart from executing at proper time, apparently it launches few seconds after successfully running the app. I want this to run exclusively at the set time.
#Override
public void onReceive(Context context, Intent intent) {
mAuth = FirebaseAuth.getInstance();
currentUser = mAuth.getCurrentUser();
DownloadTask task = new DownloadTask();
task.execute("https://api.apify.com/v2/key-value-stores/3Po6TV7wTht4vIEid/records/LATEST?disableRedirect=true");
String contentText = "Nowe zakażenia: " +infectionsInfo+ " Nowe śmierci: "+deathsInfo;
NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "notifyLemubit1")
.setSmallIcon(R.drawable.unnamed)
.setContentTitle("Punkty zostały przyznane!")
.setContentText(contentText)
.setPriority(NotificationCompat.PRIORITY_DEFAULT);
NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
notificationManager.notify(200, builder.build());
and
calendar1.set(Calendar.HOUR_OF_DAY,10);
calendar1.set(Calendar.MINUTE,40);
Intent intent1 = new Intent(MenuActivity.this, PointsBroadcast.class);
PendingIntent pendingIntent1 = PendingIntent.getBroadcast(MenuActivity.this, 0, intent1, 0);
AlarmManager alarmManager1 = (AlarmManager)getSystemService(ALARM_SERVICE);
alarmManager1.setRepeating(AlarmManager.RTC_WAKEUP,calendar1.getTimeInMillis(),AlarmManager.INTERVAL_DAY, pendingIntent1);```

All repeating alarms are inexact in order not to easily let developers abuse them.
If you want the action to be done in that exact time you need to use one-time alarms. To make them "repeating" you need to schedule the first one initially and always schedule the next one once the alarm is fired.
Although your issue might be due to this plus some other issue.
Exact alarms should only be used for extremely important tasks so I suggest considering using WorkManager so you don't affect the battery of the device as much.

Setting multiple alarms in Android Studio with an alarmmanager causes problems

I currently have a small project running in Android Studio that I need help with. I want to include a reminder function with notifications.
I have a total of 4 time pickers for each of which I want to set an alarm at the corresponding selected time.
With my current code the planned feature works only halfway, with the following problem:
If I select one time, then I sometimes get a notification at this time as desired. However, not always on time. Most of the time the alert doesn't appear and if it does, then half a minute to a minute later. And if I set all 4 alarms, in the best case I get a notification at the last selected time. In the worst case nothing happens.
But all I want is to get daily notifications at the selected 4 times.
About my code, I use an alarm manager which I call 4 times for the 4 alarms. I also use a broadcast receiver in which the notification is triggered. And I use a different RequestCode for each PendingIntent.
I really searched all relevant posts on SO, but not one of them worked for me. Maybe I have included it in the wrong way. I hope someone can help me. Here are my methods:
Alarm method from Activity.class
(UhrzeitInMillis describes the chosen time by timepicker, for example 16.03):
public void SetAlarm(Context context, long UhrzeitInMillis) {
Intent intent = new Intent(context, Optionen_Alarm.class);
final int id = (int) System.currentTimeMillis();
PendingIntent pendingIntent = PendingIntent.getBroadcast(
this.getApplicationContext(), id, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, UhrzeitInMillis, AlarmManager.INTERVAL_DAY, pendingIntent);
}
BroadcastReceiver (Optionen_Alarm.java):
public class Optionen_Alarm extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "myapp:mywakelocktag");
wl.acquire();
createNotificationChannel(context);
NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "1");
builder.setContentTitle("titel");
builder.setContentText("text!");
builder.setSmallIcon(R.drawable.picture);
builder.setColor(context.getResources().getColor(R.color.red));
builder.setVibrate(new long[]{0, 300, 300, 300});
builder.setLights(Color.WHITE, 1000, 5000);
builder.setAutoCancel(true);
builder.setPriority(NotificationCompat.PRIORITY_HIGH);
builder.setStyle(new NotificationCompat.BigTextStyle().bigText("text!"));
Intent notifyIntent = new Intent(context, Activity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 2, notifyIntent, PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(pendingIntent);
Notification notificationCompat = builder.build();
NotificationManagerCompat managerCompat = NotificationManagerCompat.from(context);
managerCompat.notify(15, notificationCompat);
wl.release();
private void createNotificationChannel(Context context) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
CharSequence name = "name";
String description = "description";
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel channel = new NotificationChannel("1", name, importance);
channel.setDescription(description);
NotificationManager notificationManager = context.getSystemService(NotificationManager.class);
notificationManager.createNotificationChannel(channel);
}
}
}
```java

For battery reason, from android 6.0 the time you set on the alarm manager will not be guaranteed to trigger at the exact same time you have set. You could use the method '''setExactAndAllowWhileIdle()''' to make the alarm behave like you want.
You can read more about this here https://developer.android.com/training/scheduling/alarms

Push Notifications - Android

I am working on a small project that involves a web interface that can send information to my android app which will display such information as Push Notifications.
But here is the thing, I am a bit confused with how to do that. As in what step will i have to take.
So I have a web interface in HTML which has a Textfield for notification Title, Content, and a submit button. I want it that when the user clicks the Submit button, the webpage will send the text that s in the Title and Content fields to my android app and then the app will just display them as push notifications.
So far on the app i have it that when you click a button on your device then it just shows a notification on the Actionbar. This is great for testing but It would be better that you can just compose your notification through a web interface.
My test Push Notification code for the app:
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent();
PendingIntent pIntent = PendingIntent.getActivity(MainActivity.this, 0, intent, 0);
// TODO: Make this accessible to exterior projects, such as web interface.
Notification notification = new Notification.Builder(MainActivity.this)
.setTicker("Notification")
.setContentTitle("Important Message")
.setContentText("This is an example of a push notification using a Navigation Manager")
.setSmallIcon(R.mipmap.ic_launcher)
.setContentIntent(pIntent)
.build();
notification.flags = Notification.FLAG_AUTO_CANCEL;
NotificationManager nManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
nManager.notify(0, notification);
}
});
If anyone could be so kind to give me a hand, it would be much appreciated.

You are right, so far so good with the notification bar, now what you need is a notification service, and google has something like that for us...
how does this works??
Take a look at the image below,
you need to register your android app in the google service, and your web interface will need an id, so everytime you want to push something to the android, your web interface instead will push it to the google server with the Id of the app, then google (no matter how) will localize your app, and even if its not running, they will get the notification,
behind the scenes there is a couple of thing that you must do, bu nothing like launching rockets from the NASA.
I will suggest to take a look to some tutorials
in order to start with the registration of your app, get the api key etc etc..

Here is a great source in github which shows how you can add push notification service in your android app
github.com/rana01645/android-push-notification
Firstly read the full documentation
How to add push notification in android application from android studio – Android developer (part – 1 Connect with firebase ) ~ http://androidrace.com/2016/12/08/how-to-add-push-notification-in-android-application-from-android-studio-android-developer-part-1-connect-with-firebase/
How to add push notification in android application from android studio – Android developer (part – 2 Working with server) ~http://androidrace.com/2017/01/05/how-to-add-push-notification-in-android-application-from-android-studio-android-developer-part-2-working-with-server/
Then you can able to send push notification from your server using html

public class Uyarilar extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent arg1) {
Date currentTime = Calendar.getInstance().getTime();
showNotification(context);
}
private void showNotification(Context context) {
PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
new Intent(context, MainActivity.class), 0);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.presta)
.setContentTitle("Saat 9:00")
.setContentText("Mesai saatiniz başlamıştır Lütfen harakete geçiniz!");
mBuilder.setContentIntent(contentIntent);
mBuilder.setDefaults(Notification.DEFAULT_SOUND);
mBuilder.setAutoCancel(true);
NotificationManager mNotificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(1, mBuilder.build());
}
}
and call
private void setNotification() {
Calendar calNow = Calendar.getInstance();
Calendar calSet = (Calendar) calNow.clone();
calSet.set(Calendar.HOUR_OF_DAY, 9);
calSet.set(Calendar.MINUTE, 00);
calSet.set(Calendar.SECOND, 0);
calSet.set(Calendar.MILLISECOND, 0);
if (calSet.compareTo(calNow) <= 0) {
calSet.add(Calendar.DATE, 1);
}
Date currentTime = Calendar.getInstance().getTime();
Intent intent = new Intent(getBaseContext(), Uyarilar.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), REQUEST_CODE, intent, 0);
AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, calSet.getTimeInMillis(), pendingIntent);
}
and
onCreate
setNotification();

this method to push notification
public void testMessage (String message , Intent intent){
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 , intent,
PendingIntent.FLAG_ONE_SHOT);
String channelId = "some_channel_id";
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
android.support.v4.app.NotificationCompat.Builder notificationBuilder =
new android.support.v4.app.NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.mipmap.ic_launcher_round)
.setContentTitle(getString(R.string.app_name))
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setBadgeIconType(android.support.v4.app.NotificationCompat.BADGE_ICON_SMALL)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
"Channel human readable title",
NotificationManager.IMPORTANCE_DEFAULT);
assert notificationManager != null;
notificationManager.createNotificationChannel(channel);
}
assert notificationManager != null;
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}

will some one tell me how to get remote notification i mean when sever post some thing user will get the notiffication

i search alot but i find a code which based on notification manager , it
just happens when user click , how can i make it in a proper way when
server uploads something user get notified
public void shownotifications(View view) {
NotificationCompat.Builder notificBuilder = new NotificationCompat.Builder(this);
notificBuilder.setContentTitle("Title");
notificBuilder.setContentText("Message");
notificBuilder.setTicker("Alert New Message");
notificBuilder.setSmallIcon(R.drawable.icon);
Intent moreInfoIntent = new Intent(this,MoreInfoNotification.class);
TaskStackBuilder tStackBuilder = TaskStackBuilder.create(this);
tStackBuilder.addParentStack(MoreInfoNotification.class);
tStackBuilder.addNextIntent(moreInfoIntent);
PendingIntent pendingIntent = tStackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
notificBuilder.setContentIntent(pendingIntent);
notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(notifID,notificBuilder.build());
isNotificActive = true;
}
public void stopnotifications(View view) {
if(isNotificActive){
notificationManager.cancel(notifID);
}
}
public void alertnotifications(View view) {
Long alertTime = new GregorianCalendar().getTimeInMillis()+5*1000;
Intent alertIntent = new Intent(this,AlertReceiver.class);
AlarmManager alarmManager= (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP,alertTime,PendingIntent.getBroadcast(this,1,alertIntent,PendingIntent.FLAG_UPDATE_CURRENT));
}

You need to have google GCM integrated on your server and your device.
You can go through this .
Here is the Demo code from Google https://github.com/googlesamples/google-services/tree/master/android/gcm

One more suggestion to you use parse.com notification sdk pushing notification on android mobile.

I don't know but may be these link help you little bit.

Notification Intents not working for Android application

My app is running a service that collects feeds. When it find these feeds it create notations (unsuccessfully). I use a method call like this:
doNotification(date,"New Article",title,link,content,description,false);
for articles and this:
doNotification(date,"New Video",title,link,"","",true);
for videos. The method is this:
public void doNotification(Date date,String title,String subtext,String url,String body,String dateString,boolean video){
long time = date.getTime();
if(time > feedGetter.lastFeed){
//New feed, do notification
NotificationManager mNotificationManager = (NotificationManager) feedGetter.service.getSystemService(Context.NOTIFICATION_SERVICE);
int icon = R.drawable.notification_icon;
Notification notification = new Notification(icon, title + ": " + subtext, time);
Intent notificationIntent = new Intent(feedGetter.service, NotificationActivity.class);
notificationIntent.putExtra("url",url);
notificationIntent.putExtra("video",video);
if(!video){
notificationIntent.putExtra("body",body);
notificationIntent.putExtra("date",dateString);
notificationIntent.putExtra("title",subtext);
}
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent contentIntent = PendingIntent.getActivity(feedGetter.service, 0, notificationIntent, PendingIntent.FLAG_ONE_SHOT);
notification.setLatestEventInfo(feedGetter.service.getApplicationContext(), title, subtext, contentIntent);
mNotificationManager.cancel(video? 1 : 0);
mNotificationManager.notify(video? 1 : 0, notification);
//Update new time if necessary.
if(time > feedGetter.newTime){
feedGetter.newTime = time; //New time will be the time for this feed as it is the latest so far
}
}
}
As you see I add some data to the intent so I can handle the notifications correctly. The notifications are assigned to an ID for videos or an ID for articles and should replace the previous notifications. Here is the NotificationActivity that handles the notifications:
public class NotificationActivity extends Activity{
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Debug.out("Notification Activity");
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
if(getIntent().getBooleanExtra("video", true)){
//Handle video notification
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(getIntent().getStringExtra("url")));
startActivity(browserIntent);
mNotificationManager.cancel(1);
}else{
//Start application UI and move to article
Intent intent = new Intent(this,TheLibertyPortalActivity.class);
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("url", getIntent().getStringExtra("url"));
intent.putExtra("body", getIntent().getStringExtra("body"));
intent.putExtra("date", getIntent().getStringExtra("date"));
intent.putExtra("title", getIntent().getStringExtra("title"));
startActivity(intent);
mNotificationManager.cancel(0);
}
finish();
}
}
So it's supposed to activate a URL for the videos and restart the application for articles with some data for handling the articles so the article is displayed to the user.
Seems simple enough but it doesn't work. The notifications display and they replace each other on the notification menu, showing the latest notifications for videos and articles but when I click on them they go wrong. I try to click on the article notification and it thinks it is a video and loads one of the videos. I go back onto the notification menu and the video notification has disappeared even when I clicked on the article notification. I try clicking on the article notification and nothing happens. It literally closes the menu and doesn't nothing and the notification remains in the menu doing nothing.
Thank you for any help with this. I am targeting the Google APIs level 14 API, with a min SDK version of level 8, trying with a 2.2.1 Android tablet.

The problem is with the Pending intent. Even though the docs say the requestCode is not used, it is. You must pass a unique integer for each PendingIntent. That worked!