> For the complete documentation index, see [llms.txt](https://user.netmera.com/netmera-developer-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://user.netmera.com/netmera-developer-guide/platforms/flutter/push-notifications/widget-and-in-app-messages.md).
# Widget and In-App Messages
### Pop-up and In-App Message Presentation Behavior
All push notifications in Netmera work automatically—no additional coding is required. However, you can customize pop-up presentations and listen to push callbacks.
By default, when a popup notification or in-app message is received:
* If the app is in the foreground, the SDK displays pop-up notifications and in-app messages **immediately**.
* If the app is in the background, the SDK shows them **when the app returns to the foreground.**
### Receiving Popups and In-App Messages in the Background
To receive popups or in-app messages when the application is in the background, you need to enable **Remote Notifications** under **Background Modes** in **Capabilities**.
### Managing Pop-up Presentations
To enable or disable pop-up presentation, you need to call this methods
{% hint style="info" %}
To show pop-up on the app start or everywhere in the app, please call `Netmera.enablePopupPresentation();` to your `main.dart` file.
{% endhint %}
```dart
Netmera.enablePopupPresentation();
```
```dart
Netmera.disablePopupPresentation();
```
### Handle Widget URL's
**Step 1:** In order to use the widget URL callback, add these lines into `AppDelegate.swift` file.
import NetmeraNotification
import netmera_flutter_sdk
...
override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
...
FNetmera.setPushDelegate(self)
..
}
...
extension AppDelegate: NetmeraPushDelegate {
func urlOpeningDecision(for url: URL, push: NetmeraBasePush) -> PushDelegateDecision {
return .sdkHandles
}
func openURL(_ url: URL, for push: NetmeraBasePush) {
FNetmera.openURL(url: url, forPushObject: push)
}
}
{% hint style="info" %}
No need extra implementation for Android.
{% endhint %}
**Step 2:** Handle widget URL's in dart classes.
```dart
void _onWidgetUrlTriggered(String url) {
// Handle widget URL
}
Netmera.onWidgetUrlTriggered(_onWidgetUrlTriggered);
```
---
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