system_alert_window_example

A flutter plugin to show Truecaller like overlay window, over all other apps along with callback events.

Android

Permissions

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

Android 9 and below

Uses 'draw on top' permission and displays it as a overlay window

Android 10 and above

Uses Android Bubble APIs to show the overlay window.

IOS

Displays as a notification in the notification center [Help Needed]