Develop Reference

Whole Notification Background Color

I'm seeing some apps showing background color in whole notification.
Myntra Notification with BackgroundColor
First Cry Notification with BackgroundColor
I tried solutions from these links but nothing worked.
Changing Notification RemoteViews Background Color
https://cazimirroman.medium.com/android-how-to-set-the-background-color-for-a-notification-in-a-foreground-service-eaa505e2b82d
Tried using DecoratedMediaCustomViewStyle ->
val mediaSession = MediaSessionCompat(context,"tag")
mediaSession.setFlags(0)
mediaSession.setPlaybackState(PlaybackStateCompat.Builder()
.setState(PlaybackStateCompat.STATE_NONE,0,0f)
.build())
val builder = NotificationCompat.Builder(context, "channelId1")
.setSmallIcon(R.drawable.ic_notification_small)
.setContentTitle("The Title")
.setPriority(NotificationCompat.PRIORITY_MAX)
.setWhen(System.currentTimeMillis())
.setOngoing(true)
.setAutoCancel(true)
.setColor(ContextCompat.getColor(context, R.color.pink))
.setColorized(true)
.setStyle(androidx.media.app.NotificationCompat.DecoratedMediaCustomViewStyle().setMediaSession(mediaSession.sessionToken))
In this case notification is coming black always (suppose to be pink) and also doesn't show all the information.
Notification using MediaStyle

You should create two custom layouts for your notifications, one for a collapsed notification and one for an expanded notification, then in your activity:
RemoteView collapsedRV = new RemoteViews (getPackageName(), R.layout.collapsed_notification)
RemoteView expandedRV = new RemoteViews (getPackageName(), R.layout.expanded_notification)
then in your builder you need to set the content view like this:
.setCustomContentView(collapsedRV)
.setCutomBigContentView(expandedRV)
.build()
notificationManager.notify(1,builder)

Why Notification does not show the correct smallIcon?

I use below code to display notifications in my Android apps. I can display it but both "small-Icon" and "large-Icon" are incorrect.They are not even launcher-icon.! I don't know Android where does they get from !!!!
My device is xiaomi-mi5s, is it related to my device? although other apps like Gmail show correct notifications.
I tested notifications in API 15,17,26 emulators and everything
NotificationCompat.Builder builder = new android.support.v4.app.NotificationCompat.Builder(context, PRIMARY_CHANNEL)
.setSmallIcon(R.drawable.ic_stat_name)
.setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcher))
.setContentIntent(getPendingIntent(context))
.setContentTitle("This is dummy title")
.setContentText("This is dummy body text")
.setSound(getDefaultSoundUri())
.setCategory("My_Category")
.setDeleteIntent(getOnDismissedPendingIntent(context));
NotificationManager manager = (NotificationManager) context.getSystemService(NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= 26) {
NotificationChannel chan1 = new NotificationChannel(PRIMARY_CHANNEL,
PRIMARY_CHANNEL, NotificationManager.IMPORTANCE_DEFAULT);
chan1.setLightColor(Color.BLUE);
chan1.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
manager.createNotificationChannel(chan1);
}
manager.notify(12121, builder.build());

First of all, Large icon and Small icon can be different.
setSmallIcon(): sets an icon that should be displayed at status bar when notification was received. If setLargeIcon() was not called in the builder, large icon will use small icon drawable. Icon should have size of 24dp.
setLargeIcon(): sets an icon that should be displayed at notification in notification list, that can be opened by user by vertical dragging of status bar.
!!! Since API 21, Android requires you to use only single-colour icons with transparency for small icons (e.g. filled contour of Android with only white colour and transparent background).
As a Large icon, you can use icon of any colours, there are no restrictions.

Android Lock Screen Notification Custom View with Ripple and Double Tap

I am working on an Android app. This last makes use of a notification with a custom view that is displayed on the lock screen. Unfortunately, I am not able to get the ripple and elevation effect when I tap on it like other notifications. Also, a single touch trigger the intent I have configured whereas other notifications require double tap.
I have put a minimal project example on Github:
https://github.com/lpellegr/android-notification-custom-example
The app example offers two buttons to publish notifications: one that uses a custom view and suffer from the issues mentioned above and another notification that uses the default system view with the expected behaviour.
Any idea about how to get the ripple and elevation effect but also the double tap behaviour (by keeping the custom view) is welcome.
PS: I am targeting API 19+ and I want to use a custom view layout for the notification, along with setOnClickPendingIntent since only this listener allows to open an activity whatever the security mode of the device is.

Remove setOnClickPendingIntent from the method publishNotificationWithCustomView and add setContentIntent to the notification builder:
private void publishNotificationWithCustomView() {
String title = "Notification Custom View";
String content = "No ripple effect, no elevation, single tap trigger";
Context context = getApplicationContext();
NotificationCompat.Builder builder =
new NotificationCompat.Builder(context)
.setWhen(System.currentTimeMillis())
.setDefaults(DEFAULT_ALL)
.setSmallIcon(R.mipmap.ic_launcher)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setOnlyAlertOnce(true)
.setAutoCancel(false)
.setColor(ContextCompat.getColor(context, R.color.colorAccent))
.setContentTitle(title)
.setContentText(content)
.setOngoing(true)
.setCategory(NotificationCompat.CATEGORY_ALARM)
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
.setContentIntent(createLockscreenNotificationPendingIntent(context));
int notificationLayoutResId = R.layout.lock_screen_notification;
// using folder layout-vX is having issue with LG devices
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
notificationLayoutResId = R.layout.lock_screen_notification_android_n;
}
RemoteViews remoteView = new RemoteViews(
context.getPackageName(), notificationLayoutResId);
remoteView.setTextViewText(R.id.title, title);
remoteView.setTextViewText(R.id.text, content);
builder.setCustomContentView(remoteView);
Notification notification = builder.build();
publishNotification(context, notification, 7);
}
Then remove android:clickable="true" from lock_screen_notification.xml and lock_screen_notification_android_n.xml:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="64dp">
....

Android Notification with many actions are not shown

i am trying to show a notification with more than 3 actions. Unfortunately, the forth action and so on are not showing (probably because there not enough space). Also, the action items does not have the same width.
Does anyone know how can i display more than 3 actions?
This is my code:
final NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();
inboxStyle.setBigContentTitle(message.getData().get(DATA_TITLE));
inboxStyle.addLine(message.getData().get(DATA_BODY));
final NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_notification)
.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
.setContentTitle(message.getData().get(DATA_TITLE))
.setContentText(message.getData().get(DATA_BODY))
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setStyle(inboxStyle)
.setContentIntent(defaultIntent)
.setPriority(Notification.PRIORITY_MAX);
addActions(notificationBuilder, message);
private void addActions(final NotificationCompat.Builder builder, final RemoteMessage message) {
if (containsAction(message, EventActionType.OpenMessage)) {
builder.addAction(R.drawable.ic_email, "open", getActionIntent(message, MyActivity.class));
}
if (containsAction(message, EventActionType.Details)) {
builder.addAction(R.drawable.ic_notification_account, "details", getActionIntent(message, MyActivity.class));
}
if (containsAction(message, EventActionType.Transfer)) {
builder.addAction(R.drawable.ic_access_time, "transfer", getActionIntent(message, MyActivity.class));
}

This link can help you.
According to standard docs of android we can't have more than three actions for a notification.
If you want to have more than three actions , you can use remoteViews. Every notification will have a default view which is provided by android os, but we can customise it. To do that we need to create a layout will be used as a our notification view and use as many as buttons as you want in that layout, but height of the layout is limited as notification height is limited by android.Make sure all your buttons will fit in notification.Create a remoteViews with this layout.
After that when you are creating notification attach it to notification using setCustomContentView. For each button in the view you can have different pendingintent i.e on clicking on different buttons different pending intents can be executed. see RemoteView.setOnClickPendingIntent(view,pendingIntent).
Happy coding ;-)

How to create Custom Notification in android

I need to create a custom notification instead of the default notification in android.
Current notification have a icon,heading and message like below image
I want it customise like this
how can i achieve this

Notification views
Normal View - A notification in normal view appears in an area that’s up to 64 dp tall. Even if you create a notification with a big view style, it will appear in normal view until it’s expanded.
Content title
Large icon
Content text
Content info
Small icon
Notification time
Normal View Like
Big View - A notification’s big view appears only when the notification is expanded, which happens when the notification is at the top of the notification drawer, or when the user expands the notification with a gesture. Expanded notifications were first introduced in Android 4.1 JellyBean [API 16]. Expandable notifications were designed to support rich notification style objects called Notification.Style.
Big View Like
Go to this link expandable-notifications-android
More information on official docs

I have create notification usingby following http://developer.android.com/wear/notifications/creating.html
Add code for create notification.
// Specify the 'big view' content to display the long
// event description that may not fit the normal content text.
BigTextStyle bigStyle = new NotificationCompat.BigTextStyle();
bigStyle.bigText(eventDescription);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_event)
.setLargeIcon(BitmapFractory.decodeResource(
getResources(), R.drawable.notif_background))
.setContentTitle(eventTitle)
.setContentText(eventLocation)
.setContentIntent(viewPendingIntent)
.addAction(R.drawable.ic_map,
getString(R.string.map), mapPendingIntent)
.setStyle(bigStyle);

That's called Expanded layouts which is available right from Jelly Bean version.
There are 2 views of Notifications:
Normal View
Big View
A notification’s big view appears only when the notification is expanded, which happens when the notification is at the top of the notification drawer, or when the user expands the notification with a gesture. Expanded notifications were first introduced in Android 4.1 JellyBean [API 16].
In your case, you just want to display big picture in notification, give Notification.BigPictureStyle a try:
Bitmap remote_picture = null;
// Create the style object with BigPictureStyle subclass.
NotificationCompat.BigPictureStyle notiStyle = new
NotificationCompat.BigPictureStyle();
notiStyle.setBigContentTitle("Big Picture Expanded");
notiStyle.setSummaryText("Nice big picture.");
try {
remote_picture = BitmapFactory.decodeStream(
(InputStream) new URL(sample_url).getContent());
} catch (IOException e) {
e.printStackTrace();
}
// Add the big picture to the style.
notiStyle.bigPicture(remote_picture);

you can use NotificationCompat that need remoteview . below i set my custom layout named
activity_downlaodactivity
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
RemoteViews contentView = new RemoteViews(getPackageName(),R.layout.activity_downlaodactivity);
android.support.v4.app.NotificationCompat.Builder mBuilder =
new android.support.v4.app.NotificationCompat.Builder(this)
.setContent(contentView)
manager.notify(0, mBuilder.build());