As you can see in Android and OEM customisation, the items in Status Bar or Notification bar have different layouts.
The notification also differs depending on the Theme/Rom you installed.
Here is an example with Vanilla/Touchwizz/MIUI:
or
or 
What I would like to get is the layout, so I can include it in my activity and preview a notification inside my application.
I guess there is something similar to the android.R.layout.simple_list_item_1 for listview for instance.
Thank a lot for any help or any clue.
The layout for notification is located in separate
SystemUIpackage: status_bar_latest_event (as of Android 2.3). This is not directly accessible from application. And if you could extract the layout, it wouldn’t help you, as it uses customcom.android.systemui.statusbar.LatestItemViewview. So you’d need to load that class into your process usingPathClassLoader.So theoretically this might be possible, but it’s going to be tricky.