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overlay_pop_up

A new Flutter plugin to display pop ups or screens over other apps in Android even when app is closed or killed.

Demo

Android

add this to your AndroidManifest.xml

 <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

 <application>
        ...
        <service
           android:name="com.requiemz.overlay_pop_up.OverlayService"
           android:exported="false" />
    </application>

Android 14

applications that target SDK 34 and use foreground service should include foregroundServiceType attribute(see documentation).

 <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

 <application>
        ...
        <service
           android:name="com.requiemz.overlay_pop_up.OverlayService"
           android:exported="false"
           <!-- add this -->
           android:foregroundServiceType="camera, dataSync, location, etc" />
    </application>

Flutter implementation

configure your main.dart entry point a widget to display (make sure to add @pragma('vm:entry-point'))

NOTE: Now you can pass as parameter the dart entry point method name when showOverlay is called

@pragma("vm:entry-point")
void overlayPopUp() {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(const MaterialApp(
    debugShowCheckedModeBanner: false,
    home: Text('Hello Pub.dev!'),
  ));
}

Overlay Methods

returns true when overlay permission is alreary granted if permission is not granted then open app settings

await OverlayPopUp.requestPermission();

returns true or false according to permission status

await OverlayPopUp.checkPermission();

display your overlay and return true if is showed

PARAMS

• height is not required by default is MATCH_PARENT

• width is not required by default is MATCH_PARENT

• verticalAlignment is not required by default is CENTER for more info see: https://developer.android.com/reference/android/view/Gravity

• horizontalAlignment is not required by default is CENTER for more info see: https://developer.android.com/reference/android/view/Gravity

• backgroundBehavior by default is focusable flag that is you can take focus inside a overlay for example inside a textfield and [tapThrough] you can tap through the overlay background even if has MATCH_PARENT sizes.

• screenOrientation by default orientation is portrait.

• closeWhenTapBackButton by default when user presses back button the overlay no has any action if you pass true then back button will close overlay.

• isDraggable by default is false therefore the overlay can´t be dragged.

• entryPointMethodName by default is 'overlayPopUp' if you want you can change it

  await OverlayPopUp.showOverlay();
  

  returns true if overlay closed correctly or already is closed

  await OverlayPopUp.closeOverlay();
  

  returns the overlay status true = open, false = closed

  await OverlayPopUp.isActive();
  

  returns the last overlay position if drag is enabled

  await OverlayPopUp.getOverlayPosition();
  

  share dynamic data to overlay

  await OverlayPopUp.sendToOverlay({'data':'hello!'});
  await OverlayPopUp.sendToOverlay('hello');
  

  receive the data from flutter as stream

  await OverlayPopUp.dataListener();