I dont see any information about how to use NotificationCompat with Android O&#39;s `Notification Channels`

I do see a new Constructor that takes a `channelId` but how to take a Compat notification and use it in a NotificationChannel since `createNotificationChannel` takes a `NotificationChannel` object



NotificationCompat with API 26

I am trying to send information from notification to invoked activity, while from my activity I got null.

The code for notification is:

    private void showNotification() {
	Intent resultIntent = new Intent(this, MainActivity.class);
	if (D)
	    Log.d(TAG, &quot;Id: &quot; + Id);
	resultIntent.putExtra(&quot;ineedid&quot;, deviceId);

	TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
	stackBuilder.addParentStack(MeterActivity.class);
	stackBuilder.addNextIntent(resultIntent);
	PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,
		PendingIntent.FLAG_UPDATE_CURRENT);
	// Bundle tmp = resultIntent.getExtras();
	// if (tmp == null) {
	// Log.d(TAG, &quot;tmp bundle is null&quot;);
	// } else {
	// long id = tmp.getLong(&quot;ineedid&quot;, -1);
	// Log.d(TAG, &quot;tmp id : &quot; + id);
	// }
	NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
		BLEMessengerService.this)
		.setSmallIcon(R.drawable.ic_action_search)
		.setContentTitle(&quot;Event tracker&quot;)
		.setContentText(&quot;Events received&quot;).setOngoing(true)
		.setContentIntent(resultPendingIntent)
		.setWhen(System.currentTimeMillis());

	int mId = R.string.service_notification_start_service;
	mNM.notify(mId, mBuilder.getNotification());
    }


Code for get information from intent in main activity;

    Bundle extras = getIntent().getExtras();
	if (extras != null) {
	    long deviceID = getIntent().getLongExtra(&quot;ineedid&quot;,
		    -1);
	    if (ID == -1) {
		if (D)
		    Log.i(TAG_D, &quot;Wrong Id received.&quot;);
		finish();
	    } else {
		device = dataSource.getDeviceByID(deviceID);
		if (D)
		    Log.i(TAG_D, &quot;Get the id.&quot;);
	    }
	} else {
	    if (D)
		Log.d(TAG_D, &quot;Bundle is null&quot;);
	    finish();
	}

I have verified before the notification get notified, bundle is not null, and it has id in extras.
While, when I tried to fetch it from intent, it&#39;s gone. Help.

Android Notification PendingIntent Extras null

This seem to be a common problem and I went through all the related questions I could find already:
https://stackoverflow.com/questions/5628382/activity-isnt-picking-up-new-intent, https://stackoverflow.com/questions/10456655/why-extra-data-integer-is-not-sent-in-android-notification-intent, https://stackoverflow.com/questions/7370324/notification-passes-old-intent-extras/9330144, https://stackoverflow.com/questions/7098893/cant-put-extras-for-an-intent-in-notification, https://stackoverflow.com/questions/3009059/android-pending-intent-notification-problem; but still cannot figure this out.

Problem is the same. I set a notification with a PendingIntent carrying some extra information and I don&#39;t get it on the other side.

Here is the code for generating the notification:

    Notification notification = new Notification(R.drawable.icon, getResources().getString(R.string.notification_ticker), System.currentTimeMillis());
    notification.flags = Notification.FLAG_AUTO_CANCEL | Notification.FLAG_ONLY_ALERT_ONCE;
    
    Intent start_test = new Intent(this, MyActivity.class);
    start_test.putExtra(&quot;start_test&quot;, true);
    start_test.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    
    PendingIntent pi = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), start_test, PendingIntent.FLAG_CANCEL_CURRENT);
    notification.setLatestEventInfo(this, getResources().getString(R.string.notification_title), getResources().getString(R.string.notification_content, expired), pi);
    nm.notify(NOTIFICATION_ID, notification);

And on the other side:

    boolean start_test=getIntent().getBooleanExtra(&quot;start_test&quot;, false);

The bundle is actually not there (getExtras() returns null).

I tried the different flags for `PendingIntent.getActivity` (`FLAG_UPDATE_CURRENT`, `FLAG_CANCEL_CURRENT`, `FLAG_ONE_SHOT`), none of those helped.

As shown in the code, I use getCurrentMillis to make sure the requestID changes....

Also found that in MyActivity, `onCreate` and `onNewIntent` are not getting called. only `onResume` is. Even though the `FLAG_ACTIVITY_NEW_TASK` is set... ?

Am I missing something very simple ?

Intent from notification does not have extras

I am adding a Notification to System bar using the `NotificationCompat` library. This Notification has two action buttons. Also, `AutoCancel()` property on the Notification is set to true. 

On Click of the action buttons, System is configured to launch an `IntentService` which calls `NotificationManager.cancel(NOTIFICATION_ID)` and then launches an Activity in a New Task.  
Problem is that though this call removes the notification from the tray, it does not collapse the drawer. The called Activity is drawn behind the drawer. 

Can someone please shed some light on what special code is need to close the draw apart from canceling the notification?




Clicking Android Notification Actions does not close Notification drawer

I&#39;m trying to show a notification-type heads-up but I could not. What I tried

    final Notification.Builder notif = new Builder(getApplicationContext())
		.setContentTitle(getString(R.string.title))
		.setContentText(getString(R.string.text))
	//	.setTicker(getString(R.string.tick)) removed, seems to not show at all
	//	.setWhen(System.currentTimeMillis()) removed, match default
    //  .setContentIntent(contentIntent) removed, I don&#39;t neet it
		.setColor(Color.parseColor(getString(R.color.yellow))) //ok
		.setSmallIcon(R.drawable.ic_small) //ok
		.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher))
	//	.setCategory(Notification.CATEGORY_CALL) does not seem to make a difference
		.setPriority(Notification.PRIORITY_MAX); //does not seem to make a difference
	//	.setVisibility(Notification.VISIBILITY_PRIVATE); //does not seem to make a difference
	
    mNotificationManager.notify(Constants.NOTIFICATION_ID, notif.build());

The notification is shown only as an icon in the bar.
I&#39;m using API 21 on API 21 emulator (not L preview)
I have tried:  
`android:Theme.Holo.NoActionBar`,   
`android:Theme.Holo.NoActionBar.Fullscreen`  
and `NotificationCompat.Builder`  

SDK examples are not available. does anyone know how to do it?


**I made it working by adding:**

    .setDefaults(Notification.DEFAULT_VIBRATE)
is this the best way?


Heads-up Notification - Android Lollipop

I have built an application with flutter that works like a reminder.&lt;br&gt;
How can I display notifications to the user even though the app is closed?

Flutter: Push notifications even if the app is closed

My question is more about what is a good practice than what is possible:
 
- **Is it a good thing to call `NoticationManager.notify()` from a worker thread?**
- **Does the system execute it in the UI thread anyway or not?**

I always try to keep in mind that stuff concerning the UI should be executed in the UI thread and the rest in worker threads, as suggested by the Android doc about [Processes And Threads][1]:

&gt; Additionally, the Andoid UI toolkit is not thread-safe. So, you must
&gt; not manipulate your UI from a worker thread—you must do all
&gt; manipulation to your user interface from the UI thread. Thus, there
&gt; are simply two rules to Android&#39;s single thread model:
&gt; 
&gt; - Do not block the UI thread 
&gt; - Do not access the Android UI toolkit from outside the UI thread

HOWEVER, I was surprised by an example given by the Android doc itself ([about showing progress in Notifications][2]), where an ongoing notification progress was updated directly from a worker thread:

    mNotifyManager =
            (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    mBuilder = new NotificationCompat.Builder(this);
    mBuilder.setContentTitle(&quot;Picture Download&quot;)
        .setContentText(&quot;Download in progress&quot;)
        .setSmallIcon(R.drawable.ic_notification);
    // Start a lengthy operation in a background thread
    new Thread(
        new Runnable() {
            @Override
            public void run() {
                int incr;
                // Do the &quot;lengthy&quot; operation 20 times
                for (incr = 0; incr &lt;= 100; incr+=5) {
                        // Sets the progress indicator to a max value, the
                        // current completion percentage, and &quot;determinate&quot;
                        // state
                        mBuilder.setProgress(100, incr, false);
                        // Displays the progress bar for the first time.
                        mNotifyManager.notify(0, mBuilder.build());
                            // Sleeps the thread, simulating an operation
                            // that takes time
                            try {
                                // Sleep for 5 seconds
                                Thread.sleep(5*1000);
                            } catch (InterruptedException e) {
                                Log.d(TAG, &quot;sleep failure&quot;);
                            }
                }
                // When the loop is finished, updates the notification
                mBuilder.setContentText(&quot;Download complete&quot;)
                // Removes the progress bar
                        .setProgress(0,0,false);
                mNotifyManager.notify(ID, mBuilder.build());
            }
        }
    // Starts the thread by calling the run() method in its Runnable
    ).start();

That&#39;s why I&#39;m wondering if it is actually necessary to run it on the main thread, or if the system takes care of it.

Thanks for your help!

  [1]: http://developer.android.com/guide/components/processes-and-threads.html
  [2]: http://developer.android.com/guide/topics/ui/notifiers/notifications.html#Progress

Can NoticationManager.notify() be called from a worker thread?

After upgrading my phone to 8.1 Developer Preview my background service no longer starts up properly.

In my long-running service I&#39;ve implemented a `startForeground` method to start the ongoing notification which is called in on create.

    @TargetApi(Build.VERSION_CODES.O)
    private fun startForeground() {
        // Safe call, handled by compat lib.
        val notificationBuilder = NotificationCompat.Builder(this, DEFAULT_CHANNEL_ID)

        val notification = notificationBuilder.setOngoing(true)
                .setSmallIcon(R.drawable.ic_launcher_foreground)
                .build()
        startForeground(101, notification)
    }

Error message:

    11-28 11:47:53.349 24704-24704/$PACKAGE_NAMEE/AndroidRuntime: FATAL EXCEPTION: main
        Process: $PACKAGE_NAME, PID: 24704
        android.app.RemoteServiceException: Bad notification for startForeground: java.lang.RuntimeException: invalid channel for service notification: Notification(channel=My channel pri=0 contentView=null vibrate=null sound=null defaults=0x0 flags=0x42 color=0x00000000 vis=PRIVATE)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1768)
            at android.os.Handler.dispatchMessage(Handler.java:106)
            at android.os.Looper.loop(Looper.java:164)
            at android.app.ActivityThread.main(ActivityThread.java:6494)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

`invalid channel for service notification`, apparently my old channel the `DEFAULT_CHANNEL_ID` is no longer appropriate for API 27 I assume. What would be the proper channel? I&#39;ve tried to look through the documentation 

startForeground fail after upgrade to Android 8.1

I have an app showing custom notifications. The problem is that when running in Android 5 the small icon in the Notification bar is shown in white. How can I fix this?


Notification bar icon turns white in Android 5 Lollipop

Normal Notification Builder doesn&#39;t show notifications on Android O.

How could I show notification on Android 8 Oreo?

Is there any new piece of code to add for showing notification on Android O?


Notification not showing in Oreo

I am using Google notifications in my app, and until now I have done below in the manifest:

    &lt;!-- GCM --&gt;
    &lt;uses-permission android:name=&quot;android.permission.GET_ACCOUNTS&quot; /&gt; &lt;!-- GCM requires a Google account. --&gt;
    &lt;uses-permission android:name=&quot;android.permission.WAKE_LOCK&quot; /&gt; &lt;!-- Keeps the processor from sleeping when a message is received. --&gt; 
    &lt;uses-permission android:name=&quot;com.google.android.c2dm.permission.RECEIVE&quot; /&gt; &lt;!-- This app has permission to register and receive data message. --&gt; 
        
    &lt;!-- Creates a custom permission so only this app can receive its messages. NOTE: APP_PACKAGE.permission.C2D_MESSAGE --&gt;   
    &lt;permission android:name=&quot;com.myapp.permission.C2D_MESSAGE&quot; android:protectionLevel=&quot;signature&quot; /&gt;
    &lt;uses-permission android:name=&quot;com.myapp.permission.C2D_MESSAGE&quot; /&gt;    
    &lt;!-- END GCM --&gt;

It worked perfectly until I updated my Nexus 7 to Android 5.0.  
Now when I try to install the app in this device with Eclipse, I get this error:

&gt;INSTALL_FAILED_DUPLICATE_PERMISSION perm=com.myapp.permission.C2D_MESSAGE pkg=com.myapp

I don&#39;t understand what is wrong? It was working perfectly until Android 5.0.  
I know that I am using `C2D_MESSAGE` in two lines, `permission` and `uses-permission` but I have copied that code from the original Google GCM guide, so it must be fine.

INSTALL_FAILED_DUPLICATE_PERMISSION... C2D_MESSAGE

After upgrading my project to **Android O**

    buildToolsVersion &quot;26.0.1&quot;

Lint in Android Studio is showing a deprecated warning for the follow notification builder method:

    new NotificationCompat.Builder(context)


**The problem is:** Android Developers update their Documentation describing **NotificationChannel** to support notifications in Android O, and provide us with a snippet, yet with the same deprecated warning:

    Notification notification = new Notification.Builder(MainActivity.this)
            .setContentTitle(&quot;New Message&quot;)
            .setContentText(&quot;You&#39;ve received new messages.&quot;)
            .setSmallIcon(R.drawable.ic_notify_status)
            .setChannelId(CHANNEL_ID)
            .build();  

[Notifications Overview][1]

**My question:** Is there is any other solution for building notification, and still support Android O?

A solution I found is to pass the channel ID as a parameter in Notification.Builder constructor. But this solution is not exactly reusable.

    new Notification.Builder(MainActivity.this, &quot;channel_id&quot;)


  [1]: https://developer.android.com/preview/features/notification-channels.html

NotificationCompat.Builder deprecated in Android O

Since API level 16 (Jelly Bean), there is the possibility to add actions to a notification with

    builder.addAction(iconId, title, intent);

But when I add an action to a notification and the action is pressed, the notification is not going to be dismissed.
When the notification itself is being clicked, it can be dismissed with

    notification.flags = Notification.FLAG_AUTO_CANCEL;

or

    builder.setAutoCancel(true);

But obviously, this has nothing to with the actions associated to the notification.

Any hints? Or is this not part of the API yet? I did not find anything.

How to dismiss notification after action has been clicked

I&#39;ve used the newer NotificationCompat builder and I can&#39;t get the notification to make a sound. It will vibrate and flash the light. The android documentation says to set a style which I&#39;ve done with:

    builder.setStyle(new NotificationCompat.InboxStyle());

But no sound?

The full code:

    NotificationCompat.Builder builder =  
            new NotificationCompat.Builder(this)  
            .setSmallIcon(R.drawable.ic_launcher)  
            .setContentTitle(&quot;Notifications Example&quot;)  
            .setContentText(&quot;This is a test notification&quot;);  
    
    
    Intent notificationIntent = new Intent(this, MenuScreen.class);  
    
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent,   
            PendingIntent.FLAG_UPDATE_CURRENT);  
    
    builder.setContentIntent(contentIntent);  
    builder.setAutoCancel(true);
    builder.setLights(Color.BLUE, 500, 500);
    long[] pattern = {500,500,500,500,500,500,500,500,500};
    builder.setVibrate(pattern);
    builder.setStyle(new NotificationCompat.InboxStyle());
    // Add as notification  
    NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);  
    manager.notify(1, builder.build());  


Android Notification Sound

I&#39;m seeing the following exception in crash logs:

&lt;!-- language: lang-java --&gt;

    android.app.RemoteServiceException: Bad notification posted from package com.my.package: Couldn&#39;t create icon: StatusBarIcon(pkg=com.my.package user=0 id=0x7f02015d level=0 visible=true num=0 )
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1456)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:146)
        at android.app.ActivityThread.main(ActivityThread.java:5487)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
        at dalvik.system.NativeStart.main(Native Method)

I&#39;m posting my Notification from an IntentService from a PendingIntent set via the AlarmManager using the following method.  All values passed in here are from the bundle extras in the PendingIntent / IntentService.


&lt;!-- language: lang-java --&gt;

	/**
	 * Notification 
     *
	 * @param c
	 * @param intent
	 * @param notificationId
	 * @param title
	 * @param message
	 * @param largeIcon
	 * @param smallIcon
	 */
	public static void showNotification(Context c, Intent intent,
			int notificationId, String title, String message, int largeIcon,
			int smallIcon) {
		PendingIntent detailsIntent = PendingIntent.getActivity(c,
				notificationId, intent, PendingIntent.FLAG_UPDATE_CURRENT);

		// BUILD
		NotificationCompat.Builder mNotifyBuilder = new NotificationCompat.Builder(
				c);
		// TITLE
		mNotifyBuilder.setContentTitle(title).setContentText(message);

		// ICONS
		mNotifyBuilder.setSmallIcon(smallIcon);
		if (Util.isAndroidOSAtLeast(Build.VERSION_CODES.HONEYCOMB)) {
			Bitmap large_icon_bmp = ((BitmapDrawable) c.getResources()
					.getDrawable(largeIcon)).getBitmap();
			mNotifyBuilder.setLargeIcon(large_icon_bmp);
		}

		mNotifyBuilder.setContentIntent(detailsIntent);
		mNotifyBuilder.setVibrate(new long[] { 500, 1500 });
		mNotifyBuilder.setTicker(message);
		mNotifyBuilder.setContentText(message);

		// NOTIFY
		NotificationManager nm = (NotificationManager) c
				.getSystemService(Context.NOTIFICATION_SERVICE);
		nm.notify(notificationId, mNotifyBuilder.build());
	}

From what I&#39;ve seen of other answers - the exception I&#39;m seeing happens when `setSmallIcon()` is not called properly.

I&#39;ve checked and double checked that the Resource IDs being passed are all correct.

How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn&#39;t create icon: StatusBarIcon

i am creating a notification inside a BroadcastReceiver via this code:

    String ns = Context.NOTIFICATION_SERVICE;
			NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(ns);
            int icon = R.drawable.ic_stat_notification;
			CharSequence tickerText = &quot;New Notification&quot;;
			long when = System.currentTimeMillis();

			Notification notification = new Notification(icon, tickerText, when);
			notification.defaults |= Notification.DEFAULT_VIBRATE;
			long[] vibrate = {0,100,200,200,200,200};
			notification.vibrate = vibrate;
            notification.flags |= Notification.FLAG_AUTO_CANCEL;
			
			CharSequence contentTitle = &quot;Title&quot;;
			CharSequence contentText = &quot;Text&quot;;
			Intent notificationIntent = new Intent(context, NotificationActivity.class);
			notificationIntent.putExtra(Global.INTENT_EXTRA_FOO_ID, foo_id);
    PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);

			notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);

			int mynotification_id = 1;

			mNotificationManager.notify(mynotification_id, notification);

When I click on the notification, it opens the NotificationActivity and inside the Activity i can retrieve the foo_id from the Intent-Bundle (e.g. 1)

However if another notification is triggered and i click on it again, the activity still receives the &quot;old&quot; value (1) from the Intent-Bundle. I&#39;ve tried to clear the bundle with clear(), but am receiving the same effect. I think sth is wrong with my code..

Notification passes old Intent Extras

I am receiving only one notification and if there comes another notification, it replaces the previous one and here is my code

    private static void generateNotification(Context context, String message,
			String key) {
		int icon = R.drawable.ic_launcher;
		long when = System.currentTimeMillis();
		NotificationManager notificationManager = (NotificationManager) context
				.getSystemService(Context.NOTIFICATION_SERVICE);
		Notification notification = new Notification(icon, message, when);

		String title = context.getString(R.string.app_name);

		Intent notificationIntent = new Intent(context,
				FragmentOpenActivity.class);
		notificationIntent.putExtra(key, key);
		// set intent so it does not start a new activity
		notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
				| Intent.FLAG_ACTIVITY_SINGLE_TOP);
		PendingIntent intent = PendingIntent.getActivity(context, 0,
				notificationIntent, 0);
		notification.setLatestEventInfo(context, title, message, intent);
		notification.flags |= Notification.FLAG_AUTO_CANCEL;

		notification.defaults |= Notification.DEFAULT_SOUND;

		// notification.sound = Uri.parse(&quot;android.resource://&quot; +
		// context.getPackageName() + &quot;your_sound_file_name.mp3&quot;);
		notification.defaults |= Notification.DEFAULT_VIBRATE;
		notificationManager.notify(0, notification);

	}

How to display multiple notifications in android

Android 4.1 offers the user a check box to disable notifications for a specific application.

However, as a developer we have no way to know whether a call to notify was effective or not.

I really need to check if the notifications are disabled for the current application but I can&#39;t find any setting for that in the API.

Is there ever a way to check this setting in the code?

Android 4.1: How to check notifications are disabled for the application?

Is there any way I can launch an intent to get to Android&#39;s notification settings screen for my app (pictured below)? Or an easy way I can make a PreferenceScreen item that just leads here on a click?

[![enter image description here][1]][1]


  [1]: http://i.stack.imgur.com/Kqe73.png

Any way to link to the Android notification settings for my app?

&gt; **Update:** [GCM][1] is deprecated, use [FCM][2]

I am implementing Google Cloud Messaging in my application. Server code is not ready yet and in my environment due to some firewall restrictions I can not deploy a test sever for push notification. What I am looking for is a online server which would send some test notifications to my device to test my client implementation.

  [1]: https://developers.google.com/cloud-messaging/
  [2]: https://firebase.google.com/docs/cloud-messaging/

Android: Test Push Notification online (Google Cloud Messaging)

Anybody have idea how can we remove notification from application programmatically which is called using Pending intent.

I have used to cancel notification using following method.

    AlarmManager am=(AlarmManager)getSystemService(Context.ALARM_SERVICE);
	Intent intent = new Intent(Display.this, TwoAlarmService.class);
	PendingIntent pi = PendingIntent.getBroadcast(Display.this, AlarmNumber, intent, PendingIntent.FLAG_CANCEL_CURRENT);
	am.cancel(pi);

But problem is notification which fired already that are not removed from notification bar.

Thanks in advance...

![enter image description here][1]


  [1]: http://i.stack.imgur.com/yhcx6.png

How to remove notification from notification bar programmatically in android?

My application shows some notifications, and depending on user preferences it might use a custom layout in a notification. It works well, but there is a small problem -- **text colors**. Stock Android and almost all manufacturer skins use black text against a light background for notification text, but Samsung doesn&#39;t: their notification pulldown has a dark background and the text in the default notification layout is white.

So this causes a problem: the notifications that don&#39;t use any fancy layouts show up fine, but the one that uses a custom layout is hard to read because the text is black instead of the default white. Even the [official documentation](http://developer.android.com/guide/topics/ui/notifiers/notifications.html#CustomNotification) just sets a `#000` color for a `TextView`, so I couldn&#39;t find any pointers there.

A user was kind enough to take a screenshot of the problem:

&lt;img src=&quot;http://i.stack.imgur.com/znPWN.jpg&quot; alt=&quot;Screenshot&quot; /&gt;

So **how do I use the default notification text color from the device** in my layouts? I&#39;d rather not start dynamically altering the text color based on phone model, since that requires a lot of updating and people with custom ROM&#39;s might still get the problem, depending on the skin they&#39;re using.

Custom notification layouts and text colors

I was going through the [Notifications design pattern][1], and didn&#39;t find anything that talks about notification icon background. As you probably noticed, there is only a light grey background for custom notifications. But apps like Hangouts, or simply the USB Debugging notification has a custom color for their notification icon background.

Is there any possibility to change that grey into something else? (that specific circle&#39;s color programmatically)

![See picture][2]


  [1]: http://developer.android.com/design/patterns/notifications.html
  [2]: http://i.stack.imgur.com/jjD5k.png

Changing notification icon background on Lollipop

Some apps have notifications which can&#180;t be dismissed by swiping them away.

How can I manage such behaviour?

Prevent user from dismissing notification

I am trying to open a particular activity when the user clicks the notification when the app is in the background. From the Docs, I have got that click_action has to be added in the payload and an intent filter in the App to handle it. But, how to add click_action in the Firebase Notifications via Firebase Console? I am open to any other Work Around too. Thanks in Advance.

Firebase FCM notifications click_action payload

In my android application, i want to set Notification icons dynamically which will be loaded from URL. For that, i have used `setLargeIcon` property of NotificationBuilder in `receiver`.I reffered many link and tried various solutions but couldn&#39;t get desired output. Though i downloaded that image from url and setting that bitmap in notification, it is not being displayed. Instead it displays the `setSmallIcon` image as large icon. I don&#39;t know where i am going wrong. Here i am posting my code. Please help me to solve this issue. Thank you.

Code:

    @SuppressLint(&quot;NewApi&quot;)
    public class C2DMMessageReceiver extends BroadcastReceiver {
    
    	@Override
    	public void onReceive(Context context, Intent intent) {
    		String action = intent.getAction();
    		if (&quot;com.google.android.c2dm.intent.RECEIVE&quot;.equals(action)) {
    			Log.e(&quot;C2DM&quot;, &quot;received message&quot;);
    			final String fullName = intent.getStringExtra(&quot;message&quot;);
    			final String payload1 = intent.getStringExtra(&quot;message1&quot;);
    			final String payload2 = intent.getStringExtra(&quot;message2&quot;);
    			final String userImage = intent.getStringExtra(&quot;userImage&quot;);
    			
    			Log.e(&quot;userImage Url :&quot;, userImage); //it shows correct url
    
    			new sendNotification(context)
    					.execute(fullName, payload1, userImage);
    		}
    	}
    
    private class sendNotification extends AsyncTask&lt;String, Void, Bitmap&gt; {
    
    		Context ctx;
    		String message;
    
    		public sendNotification(Context context) {
    			super();
    			this.ctx = context;
    		}
    
    		@Override
    		protected Bitmap doInBackground(String... params) {
    
    			InputStream in;
    			message = params[0] + params[1];
    			try {
    
    				in = new URL(params[2]).openStream();
    				Bitmap bmp = BitmapFactory.decodeStream(in);
    				return bmp;
    
    			} catch (MalformedURLException e) {
    				e.printStackTrace();
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    			return null;
    		}
    
    		@Override
    		protected void onPostExecute(Bitmap result) {
    
    			super.onPostExecute(result);
    			try {
    				NotificationManager notificationManager = (NotificationManager) ctx
    						.getSystemService(Context.NOTIFICATION_SERVICE);
    				
    				Intent intent = new Intent(ctx, NotificationsActivity.class);
    				intent.putExtra(&quot;isFromBadge&quot;, false);
    				
    
    				Notification notification = new Notification.Builder(ctx)
    						.setContentTitle(
    								ctx.getResources().getString(R.string.app_name))
    						.setContentText(message)
    						.setSmallIcon(R.drawable.ic_launcher)
    						.setLargeIcon(result).build();
    
    				// hide the notification after its selected
    				notification.flags |= Notification.FLAG_AUTO_CANCEL;
    
    				notificationManager.notify(1, notification);
    
    			} catch (Exception e) {
    				e.printStackTrace();
    			}
    		}
    	}

Load image from url in notification Android

I&#39;m working on an app where I create a notification for the user. I want the icon to appear as white when it&#39;s in the status bar, but colored blue when it&#39;s being displayed in the drop down notification menu. Here&#39;s an example of the same thing being done by the Google Store app.

White notification in status bar:

[![enter image description here][1]][1]


Colored notification in drop down menu:

[![enter image description here][2]][2]


  [1]: https://i.stack.imgur.com/fcIS1.jpg
  [2]: https://i.stack.imgur.com/tYmdz.jpg

How can I replicate this? What properties do I have to set?

**Edit:**
Here&#39;s my current code - I made the image all white with a transparent background, so it looks fine in the status bar, but in the notification drop, the image is still the same white color:

    private NotificationCompat.Builder getNotificationBuilder() {
            return new NotificationCompat.Builder(mainActivity)
                    .setDeleteIntent(deletedPendingIntent)
                    .setContentIntent(startChatPendingIntent)
                    .setAutoCancel(true)
                    .setSmallIcon(R.drawable.skylight_notification)
                    .setColor(ContextCompat.getColor(mainActivity, R.color.colorPrimary))
                    .setContentTitle(mainActivity.getString(R.string.notification_title))
                    .setContentText(mainActivity.getString(R.string.notification_prompt));
        }

Android Color Notification Icon

&lt;b&gt;Prelude&lt;/b&gt;

I&#39;m trying to add a chronometer on the notification. The chronometer is a service. Every second this line is called (continue Thread is a the &quot;running&quot; boolean, timeString is the elaborated String showing the time):

    NotificationChrono.updateNotification(getApplicationContext(), continueThread, 
    NOTIF_ID, timeString, &quot;Chronometer&quot;, notificationManager);

This is the NotificationChrono class:

    public class NotificationChrono {

        static public void updateNotification(Context context, boolean running,
			int id, String title, String text,
			NotificationManager notificationManager) {

            Intent stopIntent = new Intent(&quot;com.corsalini.david.barcalc.STOP&quot;);
            PendingIntent stopPendingIntent = PendingIntent.getBroadcast(context,
				0, stopIntent, 0);

		Intent startIntent = new Intent(
				&quot;com.corsalini.david.barcalc.STARTPAUSE&quot;);
		PendingIntent startPendingIntent = PendingIntent.getBroadcast(context,
				0, startIntent, 0);

		NotificationCompat.Builder builder = new NotificationCompat.Builder(
				context)

				.setContentText(context.getString(R.string.notif_text))

				.setContentTitle(title)

				.setSmallIcon(R.drawable.ic_action_alarm_2)

				.setAutoCancel(false)

				.setOngoing(running)

				.setOnlyAlertOnce(true)

				.setContentIntent(
						PendingIntent.getActivity(context, 10, new Intent(
								context, FrontActivity.class)
								.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP), 0))
				.addAction(
						running ? R.drawable.ic_action_pause
								: R.drawable.ic_action_play,
						running ? context.getString(R.string.pause) : context
								.getString(R.string.start), startPendingIntent)
				.addAction(R.drawable.ic_action_stop,
						context.getString(R.string.stop), stopPendingIntent);

		notificationManager.notify(id, builder.build());
	}
    }

&lt;b&gt;Problem&lt;/b&gt;

Every second the notification is deleted and recreated, visually it means that every second the notification disappears and reappears in the notification list. 

What I would want is to just update the TITLE text, not recreating the notification entirely every second. Is it possible?

Update text of notification, not entire notification

I need to create a simple notification which will be shown in notification bar along with the sound and icon if possible? I also need it to be compatitible with Android 2.2, so i found that NotificationCompat.Builder works with all APIs above 4. If there&#39;s a better solution, feel free to mention it.

How to create a notification with NotificationCompat.Builder?

I am trying to open a fragment when I press a notification in the notification bar. My app structure is:

 - a base activity with a nav drawer menu 
 - some fragment that are opened from menu



        b.setOnClickListener(new OnClickListener() {
    			
    			@SuppressWarnings({ &quot;deprecation&quot;, &quot;static-access&quot; })
    			public void onClick(View v) {
    				
                w_nm=(NotificationManager) getActivity().getSystemService(getActivity().NOTIFICATION_SERVICE);
                      
                 Notification notify=new Notification(R.drawable.notnificationlogo,waternoti,System.currentTimeMillis());
    			  
                 Intent notificationIntent = new Intent(getActivity(), Abc.class);
                 
                 
                 
                 PendingIntent pending=PendingIntent.getActivity(getActivity(), 0,notificationIntent, 0);
                		
    
                 notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
                         | Intent.FLAG_ACTIVITY_SINGLE_TOP );
                 
                notify.flags = Notification.DEFAULT_LIGHTS | Notification.FLAG_AUTO_CANCEL;
                
                   notify.setLatestEventInfo(getActivity(),waternoti,waternoti1, pending);
                 
                 w_nm.notify(0, notify);
        				

Can anyone tell me how to link with next fragment page (the present code is in class that extends fragment)



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