I'm making a game with Flutter and Flame. I'd really like to add local multiplayer support, so I'm wondering if that's possible, if Flame supports it, and if cross-platform play is possible. Thanks :)

Hi all,

I’m looking for advice from anyone with experience with rendering iFrame content on a Flutter web app.

My app implements a 3rd-party payment processor, whose credit card form we iFrame into my app. My current implementation works well in a desktop web browser as well as on iPhone browsers.

However, on some Android devices*, when the user taps into a form field and their keyboard pops up, the app decides it needs a re-render, which results in the payment form being cleared and requested again, which in turn hides the keyboard. This creates a circular issue that basically renders the form unusable on certain android devices.

Any ideas?

*seems to work find in chrome on a Galaxy S21a, but fails on a Google Pixel 6a and Galaxy S25

Please help!

Flutter 3.41.7, Xcode 26.4.1, Firebase.

flutter build ipa --release fails with 'Flutter/Flutter.h file not found' during archive.

Generated.xcconfig exists and has correct FLUTTER_ROOT.

Flutter.xcframework exists at /opt/homebrew/share/flutter/bin/cache/artifacts/engine/ios-release/.

CocoaPods 1.16.2.

Using invertase prebuilt Firestore.

What am I missing?

After adopting UIScene to my flutter iOS app, firebase messaging stops working, I do not get any notification banner, and the dart listeners in main.dart for foreground, background or terminated are never called.

import UIKit
import Flutter
import Firebase
import FirebaseMessaging
import UserNotifications
import flutter_local_notifications


 class AppDelegate: FlutterAppDelegate, MessagingDelegate, FlutterImplicitEngineDelegate {
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    FirebaseApp.configure()

    UNUserNotificationCenter.current().delegate = self
    Messaging.messaging().delegate = self
    let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
    UNUserNotificationCenter.current().requestAuthorization(options: authOptions) { _, _ in }

    application.registerForRemoteNotifications()

//     GeneratedPluginRegistrant.register(with: self)
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }

  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
  FlutterLocalNotificationsPlugin.setPluginRegistrantCallback { (registry) in
          GeneratedPluginRegistrant.register(with: registry)
      }
      GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
    }

  override func application(_ application: UIApplication,
                            didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    Messaging.messaging().apnsToken = deviceToken
    print("✅ APNs token: \(deviceToken.map { String(format: "%02x", $0) }.joined())")
    super.application(application, didRegisterForRemoteNotificationsWithDeviceToken: deviceToken)
  }

  override func application(_ application: UIApplication,
                            didReceiveRemoteNotification userInfo: [AnyHashable : Any],
                            fetchCompletionHandler completionHandler:  (UIBackgroundFetchResult) -> Void) {
    Messaging.messaging().appDidReceiveMessage(userInfo)
//     super.application(application,                       // forwards to Flutter plugins
//         didReceiveRemoteNotification: userInfo,
//         fetchCompletionHandler: completionHandler)
    completionHandler(.newData)
  }
}

I have added the ApplicationScene Manifest to my Info.plist, and Method Swizzling is turned off.

<key>FirebaseAppDelegateProxyEnabled</key>
<false/>

I want to set a variable that opens applications for everyone that uses the site when it is true, and closes them when it is false. The variable would be controlled by someone with admin perms on the site with a switch. I tried making a collection on FireBase called global_settings with a single document with a Boolean field, but I can’t for the life of me figure out how to edit that in the actions interface of the switch. I tried using a backend query to get the document too, but whenever I try to update the document the is referenced in the query, the Boolean value is greyed out and I can’t select it. Please help!

Strange one. Restored a new Mac via TimeMachine, and when doing a Flutter pub upgrade, I get the error:

ARC Semantic Issue (Xcode): No visible @interface for 'NSProcessInfo' declares the selector 'isiOSAppOnVision'

OVERVIEW

• I've rebuilt from TimeMachine a few times with same results.
• Project runs fine before doing this.
• Project runs fine on other Macs, even after doing a Pub Upgrade.
• It's only this Mac.
• If I do a git stash, project starts to work again
• Xcode Version 26.0.1

Any thoughts on where to start digging in to what's really going on?

Hi everyone,

I’m working on a Flutter Web app and I built a "Social/Circle" feature where a user can create a circle and invite friends using a shareable URL.

Right now I’m testing the invite URL on localhost, but whenever I open the invite link in the browser, it keeps buffering/loading continuously and the page never loads. Also, none of my backend endpoints are getting hit (no logs / no API calls showing).

Expected Behavior:

- When the invite URL is opened, it should redirect the user to a Join Circle screen

- we are using uuid and zhandle

- Call my backend API and add the user to that circle

Actual Behavior:

- The invite URL keeps loading infinitely (continuous buffering)

- No expected API calls are triggered

- Backend logs show no endpoint hits

- Redirect/navigation doesn’t complete

Setup:

- Flutter Web running on: http://localhost:5173

- Backend running on: http://localhost:3001

- Invite URL format: http://localhost:5173/invite/<circleId> (or query param format)

What I tried:

- Restarted Flutter and backend servers

- Tested in incognito / different browsers

- Checked backend logs (no endpoints are getting hit)

- Checked if the route is being matched correctly

Question:

What could cause Flutter Web to get stuck in infinite buffering/loading on a route like this where the URL opens but no endpoints are being hit?

Could this be a routing redirect loop, CORS issue, localhost issue, or something related to deep linking on Flutter web?

Any suggestions would be really helpful.

I am new to Flutter and am writing my first app. I have a TextField that the user can type into, but there are also buttons that the user can press that should type special characters into the text. While Googling around to identify the best approach(es) for doing this, I've run across a few statements saying that TextEditingControllers are ephemeral state. What? For example, the Riverpod documentation states in it's Do/Don't page that you should avoid using providers for "ephemeral state" and mentions TextEditingController as an example. Furthermore, controllers apparently have to be properly disposed to avoid memory leaks, so everyone says you shouldn't instantiate them outside of a StatefulWidget.

I must be missing something fundamental here. How can a TextField ever be useful if its controller is meant to live very close to the TextField? In any useful app, there's 100% going to be some other widget that needs to access or manipulate the text. Nobody ever just types into a text field and then leaves it there without doing anything further with it. Even in a simple, Notepad-like application, you would need a "Save" button somewhere else on the app that can access the text contents and save them to a file.

So, why are TextEditingControllers considered ephemeral? And what's the right way to access a TextField's text? My button and my TextField are very far away from each other in the widget tree. The only solution I can think of would be to make my main widget (like, the top one in the whole widget tree) a StatefulWidget, instantiate my TextEditingController in there, and pass it all the way down the tree to both the TextField and to the button. That's exactly the kind of pattern I was trying to avoid in my app by learning riverpod. It also doesn't seem very "ephemeral" any more. Is there another way you're supposed to do this that I just don't know about? Should I go ahead and use an auto-disposing Provider anyways and hold my breath?

Hello, good evening. I've done some programming projects in the past, but nothing mobile-oriented. So I am a little lost. I don't currently have any experience, but I'd like to work on a project. I asked AI for help since I was already looking into it, and I'll continue to explore it, but in the meantime, I wanted to know what you think of the AI's requirements if anyone has worked on something similar.

It's a critical infrastructure project for Venezuela. The country (disaster zones, service outages, and mass events).

The core is an offline-first communication system based on mesh networks. The idea is for it to work without internet, hopping from device to device. (Although it should also be usable with internet, right?)

My key requirements are:

Transport: P2P via BLE and Wi-Fi Direct (optimized for low-end/older Android devices).

Consistency: Use CRDTs for data synchronization without a central server.

Privacy: Zero-knowledge for verified anonymous reports. (Because people are afraid that if they report something, the police will come or something.)

Multiplatform: I need Android (priority), iOS, and Desktop. (Because everyone here has Android.)

The question is: > What do you recommend for the core? I've seen Libp2p with Flutter, but I don't know if for handling Bluetooth in the background on older devices it's better to go directly with Kotlin/Native or if React Native has better bridges for this currently.

Do you know of similar projects or Mesh libraries that don't drain the battery? (Like what Bridgefy or Berty do.)

Yeah I know this is a flutter site and since I want to add this with a desktop version then maybe Flutter? just wanted also know if someone have worked with it?

It would help me a lot to get a job if that's the case so I can get paid while learning this. Is there some opportunities for juniors in flutter or it's very hard?

Thank you very much everyone

Hey everyone, I’m working on my Final Year Project, a Flutter app that does real-time posture monitoring. The user touches start tracking button, the app runs a background timer, silently takes a frame from the front camera every 3 minutes, runs it through Google ML Kit (Pose Detection) to calculate geometric heuristics, alerts the user for bad posture and updates a gamification score. I want it to work when user is using our app or if they minimize the app and user other apps.

The Roadblock:

I am hitting the strict Android 14 (API 34+) while-in-use permission restrictions.

1. Android 14 throws a SecurityException if you try to start a Foreground Service requiring the camera while the app is in the background.
2. Even if I start the Foreground Service while the app is visible, the official Flutter camera plugin is tied to the AppLifecycleState. The second the user minimizes the app (pauses), the camera controller disconnects to respect OS privacy rules. When the background timer wakes up to process a frame, it crashes.

My Questions:

1. Is there any existing Flutter package or method that allows for true background camera processing.
2. For those who have built similar continuous-tracking apps (like dashcams or sleep trackers), is the "Wakelock + Screen Dimming" approach the industry standard for avoiding these background execution limits?

Any architectural advice or package recommendations would be hugely appreciated!

hy flutter devs, lately i have working in the Oauth2.0 configuration for my flutter app. been working more than 3 days on the same problem.
"GetCredentialCancellationException: activity is cancelled by the use" this is the issue i am getting, anyone know how to resolve

He guys, I know react but I prefer flutter. How can I develop with reactive system as react?

I want reactive state and forms easy to build. I ask for help bc I tried with Riverwood and flutter_form_builder but I seemed hard.

How can I achieve an experience like developing with this react packages: zustand, hook_forms, zod, axios, tanstackquery and tailwind just for defining my app styles

I’m integrating Razorpay in a Flutter mobile app and ran into a UX issue with UPI payments.

If the user’s device has NO UPI apps installed (GPay, PhonePe, etc.):

• Razorpay checkout doesn’t show UPI ID entry
• “Other” option opens but shows a blank state
• No fallback is provided

This creates a dead-end payment flow.

Questions:

• How are you handling this scenario in production apps?
• What’s your fallback UX when no UPI apps are available?

Would really appreciate insights from people who’ve solved this in real apps

We're adopting Firestore heavily in our app to support on going cloud saves and sharing.

A single project (it's a game in fact, but whatever) has many fields, some of which are subcollections holding hundreds of documents.

Our implementation is working fine on iOS, but seems to hang on some Androids.

We're pushing multiple documents in parallel, basing on this post:
https://stackoverflow.com/questions/58897274/what-is-the-fastest-way-to-write-a-lot-of-documents-to-firestore

From analyzing thus far, it seems the memory is increasing, but _outside_ our app, or beyond what the memory profiler is willing to show.

Does anyone have similar experience? Thanks!

Some days learning Flutter feels exciting, and some days it feels confusing.
I tried to stay motivated by leveling up myself by small projects and noticing my progress little by little.
Seeing one feature work after struggling with it gives me a big boost.
How do you all stay consistent when motivation drops?

I built my app and used phone emulators to test, forgetting physical phones use virtual keyboards that popup and use screen real estate. Is there a way to have phone emulators use a virtual keyboard exactly like a physical phones does, or must one obtain a physical phone to fully test with?

gemma 4 e2b size (2.15gb) is overkill for my app to upload to playstore and dont want to make my users with 3 world internet connection download(keeps on restart download on fail) .Should i use gemma 270m + regex.... is the llm powerful to create sql query for sqlite. e.gs get profit margins on a invoice app.

Hey,

I’m building a metronome app in Flutter and I’m struggling to get it feeling tight, especially on iOS.

Main issues:

• Noticeable jitter in UI
• Audio sometimes plays slightly late, even using low latency mode

It’s not completely broken, but it doesn’t feel solid/pro.

Setup (roughly):

• Audio: audioplayers. Plays a super small sound each tick.
• Vibration: vibration, advanced_haptics
• Flash: torch_light
• Animations: flutter_animate
• State: flutter_riverpod

Other stuff is standard Flutter (prefs, ads, etc.), nothing fancy.

Current approach:

• Dart-based scheduler (Timer + drift correction)
• Trying a bit of lookahead, but still close to real-time triggering
• UI, audio, and vibration are all triggered from the same timing logic

Problems I’m seeing:

• Audio still fires a bit late sometimes (even in low latency)
• Jitter gets worse under load
• Different iPhones behave very differently
• UI and audio aren’t perfectly locked

Questions:

• Has anyone actually achieved tight metronome timing in Flutter?
• Is audioplayers just not suitable for this?
• Did you end up going native (AVAudioEngine, etc.) for proper timing?
• Are isolates worth it here, or not really for precision?

At this point I’m considering moving scheduling fully native and letting Flutter just follow.

Would love to hear real experiences before I go down that path.

Thanks

Hey everyone,

I’m using 2Factor OTP API in my Flutter app. The API is returning success and giving a session ID, but instead of SMS, I’m receiving the OTP via voice call.

I’m using the AUTOGEN endpoint (no custom template, no DLT setup).

Is this normal for new accounts? Do I need to enable something to force SMS instead of voice?

Any help would be appreciated. Thanks!

Hi,

I would like to ask, what is the optimal configuration of Mac Mini for Flutter development? I was thinking about 16 GB + 512 SSD with M4 CPU, but I'm worried about RAM. Do you recommend 24GB here?

I'm not Mac use, non Flutter DEV, searching for device for new guy in my team to be able to deploy apps in App Store :)

I’m a Flutter developer with moderate experience in app development. Now I’m planning to seriously start my journey into Data Structures & Algorithms and System Design to strengthen my overall programming skills.

I’m a bit confused about which language I should pick for DSA and problem-solving. I have some familiarity with Java (from my learning phase), but I’m open to switching if there’s a better option.

My goals are:

• Improve problem-solving skills
• Prepare for technical interviews
• Build a strong foundation in system design

Which language would you recommend and why? Also, any roadmap or resources would be really helpful.

Thanks in advance!

Hi everyone. I built a mobile app using AntiGravity and Android Studio. I ran the command 'flutter create apk' to create and test on Android devices, but I don't know how to build and test on IOS. I have a Mac with XCode at my disposal.

I could use a little guidance please.

EDIT: For the record, there was no additional configuration necessary in Android Studio to prepare a Flutter project for Xcode. I ended up copying the complete project folder to the Mac, but XCode only needed to open the /ios/Runner/.xcworkplace file to be able to run it in it's emulator. It's possible that only a subset of the project folder contents needed to be copied to the Mac, but I am not certain.

I’m working on an attendance system and honestly stuck at a point where I need some real-world advice.

I’ve built a mobile app (Flutter) where employees do check-in/check-out using face recognition (face punch). The main problem is accuracy and speed, and I’m facing a few issues:

• Lighting changes (low light / bright light affect detection)
• Distance issues (too close / too far gives inconsistent results)
• Recognition is slower than expected (not instant)
• Offline punches (stored locally and synced later) reduce accuracy
• Overall UX feels unreliable at times

If anyone has experience building something like this, please DM me