How to create Custom Notification in android

Question

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

Answer 1

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