App lifecycle state detection for NativePHP Mobile — detects foreground/background transitions on Android and iOS.

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Installation

composer require djurovicigoor/app-lifecycle

Plugin Registration

Register the plugin in your NativeServiceProvider:

// app/Providers/NativeServiceProvider.php

public function plugins(): array
{
    return [
        // ...other plugins
        \Djurovicigoor\AppLifecycle\AppLifecycleServiceProvider::class,
    ];
}

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Usage

PHP — Laravel Event Listener

Register a listener in your AppServiceProvider:

// app/Providers/AppServiceProvider.php

use Djurovicigoor\AppLifecycle\Events\AppForegrounded;
use Djurovicigoor\AppLifecycle\Events\AppBackgrounded;
use Illuminate\Support\Facades\Event;

public function boot(): void
{
    // Fires every time the user returns to the app
    Event::listen(AppForegrounded::class, function (AppForegrounded $event) {
        // make an API call, refresh data, etc.
    });

    // Fires every time the user leaves the app
    Event::listen(AppBackgrounded::class, function (AppBackgrounded $event) {
        // flush pending writes, pause timers, etc.
    });
}

Or use a dedicated listener class:

// app/Listeners/SyncOnForeground.php

namespace App\Listeners;

use Djurovicigoor\AppLifecycle\Events\AppForegrounded;
use Illuminate\Support\Facades\Http;

class SyncOnForeground
{
    public function handle(AppForegrounded $event): void
    {

    }
}

// app/Providers/AppServiceProvider.php

Event::listen(AppForegrounded::class, SyncOnForeground::class);

⚠️ NativePHP Mobile has no queue worker. Do not implement ShouldQueue on your listeners — jobs will be written to the database but never processed. Keep listener logic fast and synchronous.

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PHP — Livewire Component

Use the #[On] attribute with the native: prefix in any Livewire component:

use Livewire\Attributes\On;
use Livewire\Component;

class Dashboard extends Component
{
    #[On('native:Djurovicigoor\AppLifecycle\Events\AppForegrounded')]
    public function handleForegrounded(int $timestamp): void
    {
        // Refresh data when app returns to foreground
        $this->loadLatestData();
    }

    #[On('native:Djurovicigoor\AppLifecycle\Events\AppBackgrounded')]
    public function handleBackgrounded(int $timestamp): void
    {
        // Save state when app goes to background
        $this->saveCurrentState();
    }
}

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JavaScript — Vue 3 (Composition API)

import { onAppForegrounded, onAppBackgrounded } from '@djurovicigoor/app-lifecycle';
import { onMounted, onUnmounted } from 'vue';

export default {
    setup() {
        let stopFg, stopBg;

        onMounted(() => {
            stopFg = onAppForegrounded(({ timestamp }) => {
                console.log('App is active again', new Date(timestamp));
                // fetch fresh data, restart polling, etc.
            });

            stopBg = onAppBackgrounded(({ timestamp }) => {
                console.log('App went to background', new Date(timestamp));
                // pause timers, cancel requests, etc.
            });
        });

        onUnmounted(() => {
            stopFg?.();
            stopBg?.();
        });
    },
};

---

JavaScript — React

import { onAppForegrounded, onAppBackgrounded } from '@djurovicigoor/app-lifecycle';
import { useEffect } from 'react';

export function Dashboard() {
    useEffect(() => {
        const stopFg = onAppForegrounded(({ timestamp }) => {
            console.log('App foregrounded at', timestamp);
        });

        const stopBg = onAppBackgrounded(({ timestamp }) => {
            console.log('App backgrounded at', timestamp);
        });

        return () => {
            stopFg();
            stopBg();
        };
    }, []);
}

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JavaScript — Vanilla / Inertia

import { onAppForegrounded, onAppBackgrounded } from '@djurovicigoor/app-lifecycle';

// Returns an unsubscribe function — call it to clean up
const stopFg = onAppForegrounded(({ timestamp }) => syncData());
const stopBg = onAppBackgrounded(({ timestamp }) => saveState());

// Later, when tearing down:
stopFg();
stopBg();

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Events

AppForegrounded

Fired when the user returns the app to the foreground after it was previously backgrounded.

Note: This event does not fire on initial app launch — only on genuine background → foreground transitions.

PHP class: Djurovicigoor\AppLifecycle\Events\AppForegrounded

Property	Type	Description
$timestamp	int	Unix timestamp in milliseconds when the transition occurred

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AppBackgrounded

Fired when the user leaves the app (presses Home, switches apps, or locks the screen).

PHP class: Djurovicigoor\AppLifecycle\Events\AppBackgrounded

Property	Type	Description
$timestamp	int	Unix timestamp in milliseconds when the transition occurred

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JavaScript API

import { onAppForegrounded, onAppBackgrounded, Events } from '@djurovicigoor/app-lifecycle';

Function	Parameters	Returns	Description
onAppForegrounded(handler)	handler: ({ timestamp: number }) => void	() => void	Subscribe to foreground transitions
onAppBackgrounded(handler)	handler: ({ timestamp: number }) => void	() => void	Subscribe to background transitions
Events.AppLifecycle.AppForegrounded	—	string	PHP class name constant
Events.AppLifecycle.AppBackgrounded	—	string	PHP class name constant

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Platform Behavior

Android

• Foreground detection uses NativePHPLifecycle.ON_RESUME
• Background detection uses NativePHPLifecycle.ON_PAUSE
• The initial onResume at app launch is suppressed — a wasBackgrounded guard ensures only genuine returns fire the event
• NativePHP's activity declares android:configChanges="uiMode|colorMode|orientation|screenSize", so screen rotation does not trigger false foreground/background events

iOS

• Foreground detection uses UIApplication.willEnterForegroundNotification
• Background detection uses UIApplication.didEnterBackgroundNotification
• willEnterForeground fires only when returning from the background, not on initial app launch — no extra guard is needed

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Plugin Details

Field	Value
Author	Djurovic Igor
Version	1.0.0
License	MIT
Android min SDK	21
iOS min version	15.0
Platforms	Android, iOS
NativePHP Mobile	^3.0
PHP	^8.2

Support

For questions or issues, email djurovic.igoor@gmail.com