Develop Reference

Set up a special activity PendingIntent

I want open special activity when the app is closed and user tap on notification. But the special didnt open. When user will click to notification i want open TestActivity but instead of this MainActivity opening all time.
In the manifest i have this code:
<service
android:name=".services.firebase.notification.AppFirebaseMessaging"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
.
.
.
<activity
android:name=".MainActivity"
android:exported="true"
android:screenOrientation="portrait"
tools:ignore="LockedOrientationActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
.
.
.
<activity android:name=".TestActivity"
android:launchMode="singleTask"
android:taskAffinity=""
android:excludeFromRecents="true"/>
this is my AppFirebaseMessaging
class AppFirebaseMessaging : FirebaseMessagingService() {
override fun onMessageReceived(remoteMessage: RemoteMessage) {
// here parsing RemoteMessage object,
sendNotification("title", "description")
}
private fun sendNotification(title: String, description: String) {
val random = System.currentTimeMillis().toInt()
val notificationBuilder: NotificationCompat.Builder = notificationBuilder(title, description)
val notificationManager = getSystemService(NOTIFICATION_SERVICE) as? NotificationManager
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
notificationManager?.createNotificationChannel(getChannel(title))
}
notificationManager?.notify(random, notificationBuilder.build())
}
private fun notificationBuilder(title: String, description: String): NotificationCompat.Builder {
val random = System.currentTimeMillis().toInt()
val defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
val notifyIntent = Intent(this, TestActivity::class.java).apply {
flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
}
val notifyPendingIntent = PendingIntent.getActivity(
this, 0, notifyIntent,
PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
)
val notificationBuilder: NotificationCompat.Builder = NotificationCompat.Builder(this, random.toString())
.setSmallIcon(R.drawable.icon_notification)
.setContentTitle(title)
.setContentText(description)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.apply {
setContentIntent(notifyPendingIntent)
}
return notificationBuilder
}
}
When user will click to notification, MainActivity will be open, dont understand why

Tapping on Notification will always open the activity that has the following intent filter attributes.
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
If you can't make the 'TestActivity' the Main activity, you could try as follows.
Keep the MainActivity as the Main.
There set the launch mode to singleTop in MainActivity.
<activity
android:name=".MainActivity"
android:launchMode="singleTop"/>
Then Override the 'onNewIntent' inside MainActivity,
#Override
protected void onNewIntent(#NonNull Intent intent) {
super.onNewIntent(intent);
// here send intent to open TestActivity
}

Reschedule notifications

I have the following structure:
Main Class
private fun scheduleNotification()
{
val intent = Intent(applicationContext, Notification::class.java)
val title = binding.titleET.text.toString()
val message = binding.messageET.text.toString()
intent.putExtra(titleExtra, title)
intent.putExtra(messageExtra, message)
val pendingIntent = PendingIntent.getBroadcast(
applicationContext,
1 + (Random.nextInt(1, 100)),
intent,
PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
)
val alarmManager = getSystemService(Context.ALARM_SERVICE) as AlarmManager
val time = getTime()
alarmManager.setExactAndAllowWhileIdle(
AlarmManager.RTC_WAKEUP,
time,
pendingIntent
)
showAlert(time, title, message)
}
Notification Class
class Notification : BroadcastReceiver(){
override fun onReceive(context: Context, intent: Intent)
{
val notification = NotificationCompat.Builder(context, channelID)
.setSmallIcon(R.drawable.ic_launcher_foreground)
.setContentTitle(intent.getStringExtra(titleExtra))
.setContentText(intent.getStringExtra(messageExtra))
.build()
val manager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
manager.notify(notificationID, notification)
}
}
Android Manifest
<receiver
android:name=".Notification"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
With this I am able to SCHEDULE a NOTIFICATION with DATE and TIME. But when the device is restarted all scheduled notifications are erased.
I tried to solve it by adding:
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
Indeed it "works" but I get an empty notification and outside the scheduled time and I understand that it is an Android behavior, but is there any solution?

Firebase not sending notifications after account change/replacing firebase account

I am trying to implement how to push notifications from firebase. I have added the dependencies and made a project in my firebase account and connected my app. It initially worked fine but I changed the firebase account that is associated with the app to another(2nd account) then I saw that I did not receive any notification so I deleted my project on the 2nd account and replaced my json files with the first one and reconnected to it again but I am not receiving any notification which was working previously. Here is my reference https://www.geeksforgeeks.org/how-to-push-notification-in-android-using-firebase-cloud-messaging/
Here is my code for notification service
package com.crazy.pushnotifications
import android.app.Notification
import android.app.NotificationChannel
import android.app.NotificationManager
import android.app.PendingIntent
import android.content.Intent
import android.os.Build
import android.widget.RemoteViews
import com.google.firebase.messaging.FirebaseMessagingService
import com.google.firebase.messaging.RemoteMessage
class FirestoreNotification : FirebaseMessagingService() {
override fun onMessageReceived(remoteMessage: RemoteMessage) {
if (remoteMessage.getNotification() != null) {
// Since the notification is received directly from
// FCM, the title and the body can be fetched
// directly as below.
showNotification(
remoteMessage.notification!!.title!!,
remoteMessage.notification!!.body!!
)
}
}
private fun getCustomDesign(title: String, message: String): RemoteViews {
val remoteViews = RemoteViews(
applicationContext.packageName,
R.layout.layout_notification
)
remoteViews.setTextViewText(R.id.title, title);
remoteViews.setTextViewText(R.id.message, message);
remoteViews.setImageViewResource(
R.id.icon,
R.drawable.ic_baseline_fingerprint_24
);
return remoteViews;
}
private fun showNotification(title: String, body: String) {
val intent = Intent(this, MainActivity::class.java)
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
val channelId = "notification_channel"
val pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT)
var builder = Notification.Builder(applicationContext, channelId)
.setSmallIcon(R.drawable.ic_baseline_fingerprint_24)
.setAutoCancel(true)
.setOnlyAlertOnce(true)
.setContentIntent(pendingIntent)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
builder = builder.setContent(
getCustomDesign(title, body)
);
} else {
builder = builder.setContentTitle(title)
.setContentText(body)
.setSmallIcon(R.drawable.ic_baseline_fingerprint_24)
}
val notificationManager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
// Check if the Android Version is greater than Oreo
// Check if the Android Version is greater than Oreo
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
val notificationChannel = NotificationChannel(
channelId, "CTQ",
NotificationManager.IMPORTANCE_HIGH
)
notificationManager.createNotificationChannel(notificationChannel)
notificationManager.notify(0, builder.build())
}
}
}
and main activity
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
}
}
manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.crazy.pushnotifications">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:dataExtractionRules="#xml/data_extraction_rules"
android:fullBackupContent="#xml/backup_rules"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.Pushnotifications"
tools:targetApi="31">
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".FirestoreNotification"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
</application>
</manifest>
I want to know if I made any mistake cause i didnot get any error but I didnot get any notification either.
NOTE: I have checked my gradle files and I am not missing any dependencies

Android notification not comes

I have an Android app where i schedule some notifications at specific times every day with alarmManager and receiver like this
fun addNot() {
val alarmMgr = context!!.getSystemService(Context.ALARM_SERVICE) as AlarmManager?
val intent = Intent(this.context!!, MyAlarmReceiverTest::class.java)
val pendingIntent = PendingIntent.getBroadcast(this.context!!, 0, intent, 0)
val current = Calendar.getInstance()
val time = createDate("13:58:00")
if(time < current) {
time.add(Calendar.DATE,1)
}
alarmMgr!!.setRepeating(AlarmManager.RTC_WAKEUP, time.timeInMillis ,AlarmManager.INTERVAL_DAY,pendingIntent)
}
fun createDate(str: String):Calendar {
val separated = str.split(":").toTypedArray()
val datetimeToAlarm = Calendar.getInstance()
datetimeToAlarm.set(Calendar.HOUR_OF_DAY,separated[0].toInt())
datetimeToAlarm.set(Calendar.MINUTE,separated[1].toInt())
datetimeToAlarm.set(Calendar.SECOND,separated[2].toInt())
return datetimeToAlarm
}
With this receiver
class MyAlarmReceiverTest : BroadcastReceiver() {
override fun onReceive(context: Context?, intent: Intent?) {
val notification = Notification.Builder(MyApplication.appContext)
.setContentTitle("title goes here")
.setContentText("this is content")
.setSmallIcon(R.mipmap.app_logo_final)
.setLargeIcon(
BitmapFactory.decodeResource(
MyApplication.appContext.getResources(),
R.mipmap.app_logo_final
)
)
.setContentIntent(null)
.build()
notification.sound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + MyApplication.appContext.getPackageName() + "/raw/a")
var notificationManager = MyApplication.appContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
notificationManager?.notify(45545454, notification)
}
}
And the manifest
<receiver
android:name=".MyAlarmReceiverTest"
android:enabled="true"
android:stopWithTask="false">
<intent-filter>
<action android:name="com.simplemobiletools.applauncher.sendbroadcast" />
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
</intent-filter>
</receiver>
Questions :
1- the above notification sometimes triggers and sometimes not , why ?
2- should i use job or workmanager for this ?
App support is from api 21 if this matters

Android - Launching Activity from Notification

I'm writing a time tracker app that starts an unbound foreground service to keep the user informed about the elapsed time.
The service runs smoothly and everything works like a charm... EXCEPT for one thing!
When the user clicks on the notification the apps main activity should start.
According to Androids documentation (https://developer.android.com/training/notify-user/navigation) this code should work, but it just starts the Android Settings Activity for the app.
override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
Log.d(TAG, "Started")
isRunning = true
val channelID = createNotificationChannel()
val pendingIntent: PendingIntent = Intent(this, MainActivity::class.java).let { notificationIntent ->
PendingIntent.getActivity(this, 0, notificationIntent, FLAG_UPDATE_CURRENT)
}
val notification: Notification = NotificationCompat.Builder(this, channelID)
.setContentTitle(CHANNEL_NAME)
.setContentText("My wonderful Text")
.setPriority(PRIORITY_LOW)
.setContentIntent(pendingIntent)
.build()
startForeground(FOREGROUND_ID, notification)
timer.scheduleAtFixedRate(TimedTask(), 0, 1000)
return super.onStartCommand(intent, flags, startId)
}
private fun createNotificationChannel(): String{
val chan = NotificationChannel(CHANNEL_ID,
CHANNEL_NAME, NotificationManager.IMPORTANCE_NONE)
chan.lightColor = Color.BLUE
chan.lockscreenVisibility = Notification.VISIBILITY_PRIVATE
val service = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
service.createNotificationChannel(chan)
return CHANNEL_ID
}
The manifest.xml looks like this:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.maybe.tima">
<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT"/>
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".TimerService"
android:label="#string/app_name"
/>
</application>
</manifest>
Any ideas why this happens? Your help is very appreciated :)

The only change I've done to make your code work - is to add method "setSmallIcon" to your notificationBulider (but I couldn't find in official documentation any mention about such kind of affection of this method):
val notification: Notification = NotificationCompat.Builder(this, channelID)
.setContentTitle(CHANNEL_NAME)
.setContentText("My wonderful Text")
.setPriority(PRIORITY_LOW)
.setSmallIcon(R.drawable.ic_launcher_background) // line added
.setContentIntent(pendingIntent)
.build()