Flutter dispose. (⇧⌘\\ in IntelliJ and Android St.

Flutter dispose May 7, 2023 · I am using riverpod_generator in my Flutter app to generate a provider for a controller that I use. It also provides Disposable and DisposableBag to easy to manage disposable instances. I need to close it immediately when I s Dec 8, 2023 · When closing app page with Navigator. So, when does a flutter widget get disposed? Aug 31, 2020 · I ran into an interesting issue while using flutter sounds to play some sounds Basically, when SoundPlayerUI is disposed, it needs to stop playing the current sound. The problem is, the new copy of Screen A is initialized BEFORE the old Flutter - dispose () Method with Example Dispose 是每当从有状态小部件中创建的对象从小部件树中永久删除时触发的方法。 它通常被覆盖并仅在状态对象被销毁时调用。 Dispose 释放分配给状态的现有变量的内存。 它仅用于有状态小部件，因为您无法更改无状态小部件的 Nov 13, 2021 · Is there a way to properly dispose resources when using hot restart: Hot restart loads code changes into the VM, and restarts the Flutter app, losing the app state. This often forces developers to use StatefulWidget, which can be verbose and less performant. I noticed that the GetBuilder has a dispose callback. of() called with a context that does not contain a Bloc of type FiltersBloc. Dec 30, 2023 · I'm using GlobalKey objects in a Flutter form to support form validation and at a TextFormField level to support cross field validation. How can I make dispose method called when I click the icon to navigate to page C? flutter dart widget dispose edited Jun 1, 2020 at 6:13 asked Jun 1, 2020 at 4:26 John Joe 12. For example, animating the opacity of a widget by using `FadeTransition`. of(context). Understanding dispose() is essential for efficient memory Learn how to use the Disposable class to clear listeners, timers, controllers and other resources in Dart. Should we be calling dispose method on EditProfileScreenState class to dispose the profileB Feb 18, 2022 · Flutter - Dispose a variable Asked 3 years, 8 months ago Modified 3 years, 8 months ago Viewed 1k times Jul 12, 2023 · Flutter: That Rare Case When You Need to Remove Listener Even If You Call Dispose When developing Flutter applications, it is common to use listeners to update the state of the UI based on changes Sep 4, 2023 · 1 Do hooks dispose of themselves when a widget rebuilds? Is it possible to cause this behavior? I'm using Riverpod for state management and I have a widget that creates a custom TextEditingController hook in the build method. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed). It basically works fine except when my testing widget is a Consumer. Nov 14, 2023 · My question is: How to call dispose method (that is in StatefulWidget) for routes are StatefulShellRoute? Tip: Memory leak will be happen if you didn't dispose of your streams. route), which means it is calling pushReplacement on itself. Regarding a page, the dispose method is called when the page is removed from the navigation stack. It’s widely used in state management solutions like BLoC (Business Logic Component) to share data between widgets without passing it explicitly through constructors. E/flutter (22177): Once you have called dispose() on a FocusNode, it can no longer be used. Screen A runs a computationally expensive operation while opened, and properly disposes by cancelling animations/subscriptions to the database when dispose() is calle May 31, 2019 · In Flutter, StatefulWidget has dispose() and deactivate(). Supports Flutter and any Dart project including HTML/JS, CLI, Shelf Server, VM and more. So I wondered is there anything we could do about. initState() and super. Those children will be disposed when Feb 3, 2020 · I'm currently using provider: ^4. I am trying to understand various state management techniques in Flutter. 0. I saw it being used in Flutter like this: @override void dispose() { void dispose () Release any resources held by this render object. The getManagedDisposer helper allows you to clean up arbitrary objects on dispose so that you can avoid keeping track of them yourself. Sep 5, 2021 · Yeah the controller wouldn't dispose until you use GetX navigation. dispose is called. But in most examples I've found on the web dispose() is not utilized. Since a WebViewController can be reused, the destruction of the WebView now depends on when it is garbage collected and not when Widget. When a user navigates away from a screen, if the underlying widget’s resources (like timers, streams, or controllers) aren’t cleaned up, they can linger in memory, causing **memory leaks**. How do you run a callback function every time the text changes? With Flutter, you have two options: Supply an onChanged() callback to a TextField or a . 3+1 Flutter dependencies: flutter_disposing: ^1. delayed worked it would not be the best solution, you could consider a workaround to solve this problem. To learn more always refer to the official Flutter documentation first. However, I wonder a little bit on how it is implemented and used in Dart and Flutter. One critical aspect often overlooked is **properly disposing of resources** when navigating between routes. However, this ease of use doesn’t mean developers are free from managing resources effectively. However when I click the icon in tab 2 to navigate to page c, dispose in tab 2 is not getting called. E/flutter (26162): Consider canceling any active work during "dispose" or using the "mounted" getter to determine if the State is still active. One common question that arises, especially among beginners, is: “Do we really need to dispose of variables and controllers in Flutter?” In this article, we’ll dive deep into the Jul 7, 2019 · How to dispose of a Stream controller Flutter Asked 6 years, 1 month ago Modified 3 years, 7 months ago Viewed 32k times Nov 27, 2023 · I want to dispose a StatefulWidget class object (containing GestureDetector in my case) in flutter using dispose() and also remove it from the screen afterwards when it's clicked. of (context) inside of dispose (), without this exception before. Oct 20, 2024 · Problem: Many Flutter apps require TextEditingController and other objects that need disposal. One of the most important parts of this lifecycle is the dispose () method. Is the May 17, 2022 · I am under the impression that using AutomaticKeepAliveClientMixin would prevent the states dispose() callback from being called when the Widget isn't visible anymore. Mar 22, 2023 · The timer that triggers the build() is disposed in the dispose() function. This allows you to create a Timer once and reuse it on subsequent calls to build. The context you used comes from a widget above the BlocProvider. It must not dispose of any children that were created by some other object, such as a RenderObjectElement. 3+1 How to Use First, you need to import disposing Jul 7, 2021 · dispose can be used for other objects the controllers were just an example. cancel(); but what if use streamBuilder under build method to get d Feb 29, 2024 · For this a minimal reproducible code snippet would work for us, but generally speaking this is because the widget has been disposed and you're trying to use the ref when the widget itself was disposed. Aug 5, 2024 · In Flutter development, the dispose method is fundamental. pop(); in each page, Flutter dispose FirstPageView. builder. Jan 14, 2022 · This would allow you to avoid micro-managing the controller. But how to emulate the call to dispose function? API docs for the dispose method from the DisposableBuildContext class, for the Dart programming language. flutter: flutter: This can happen if: flutter: 1. Mar 23, 2025 · In Flutter, every StatefulWidget follows a lifecycle that governs how it behaves from creation to destruction. Do more by doing less. FormProvider. dispose indicates that it is annotated with @mustCallSuper. The derived class is allowed to access any methods and fields of a To call a dispose method using hooks you can use useEffect hook, where the return of the function is the method you want to use to dispose useEffect((){ return bloc. However, one critical challenge arises when working with InheritedWidget: detecting when it is disposed (e. stream, builder: (BuildContext context, AsyncSnapshot<GroupModel> groupSnapshot) { I want my controller's dispose method being called whenever the controller is removed from memory. It only applies to the Flutter platform. Is it possible to make the removed widget call dispose before the new widget is built ? What it is now doesn't work well for my case. On swipe, i remove the first widget from the list but i realized the dispose method of that widget is not called therefore the AnimationContoll GetBuilder<GroupController>( init: GroupController(database, _group), builder: (GroupController groupController) => StreamBuilder( stream: groupController. in response to a notification), it will still be called again. This method should only be called by the object's owner. setState. Nov 16, 2022 · In the official Flutter documentation for the TextEditingController class, we find the following: Remember to dispose of the TextEditingController when it is no longer needed. Just one problem timer can not dispose when I want to leave this page. of<FiltersBloc>(). Nov 24, 2020 · Also if you provide MyProvider as a direct parent of your widget and after it's dispose you wouldn't need MyProvider anywhere else, you could use ProxyProvider dispose method like that: 6 days ago · API docs for the dispose method from the OverlayEntry class, for the Dart programming language. 6 days ago · API docs for the dispose method from the TabController class, for the Dart programming language. It is showing the message from this section of my code. API docs for the dispose method from the ScrollController class, for the Dart programming language. Do these GlobalKey objects need to be released/disposed of w Sep 2, 2021 · 1 I have a Flutter widget which holds state on a page. , when the Jun 8, 2020 · I'm performing some widget tests on my Flutter app with flutter_test. I used to do it the same, using Provider. periodic and bindings. onPageChanged just runs any Dismissing Flutter UI via platform native methods An application may have both Flutter and non-Flutter UI in it. I think that in most (all?) practical cases, e. dispose(); super. The framework promises that if it rebuilds your widget, it won't call initState more than once and it will always call dispose. See examples of how to dispose Streams, StreamControllers, Timers, Timer. After scrolling up again it gets recreated with its initial state, which is unintended. 2. Sep 22, 2020 · In all the examples I found online, they suggest disposing the bloc instance in the UI. So I can not cancel the Timer object I created, If I quit and re-enter the application again, t Jul 10, 2019 · I have a BottomNavigationBar for managing various screens. There are various state management solutions available Sep 14, 2020 · Override dispose () in Widget cancel whatever work performFetch and expensiveOperation are doing, so that performFetch never actually calls notifyListeners. When I leave from this page, sendMessage(&quot;message&quot;); function continue to run. You must have noticed While you reload the map or go back to the map from another view then the package crashes with the following message Dec 8, 2022 · Note: Due to the structure we have set up, the ChangeNotifierProvider object needs to be generated more than once. Once `dispose ()` is executed, the widget is considered defunct. @override void onClose() { pagingController. Over Mar 6, 2020 · I have been working on a project which requires me to change the on-screen widget based on the mobile device's orientation. You don't need to remove the listener before calling dispose, dispose clears the listener list. You used MultiBlocProvider and didn't explicity Jul 19, 2023 · I have a Screen A that is calling context. Jun 7, 2023 · I know the disposable pattern from C#. value() instead of ChangeNotifierProvider(), but assuming you want to pass the value to a different page, you can combine both as follows. Sep 28, 2022 · How to dispose a text editing controller in flutter? Asked 3 years, 1 month ago Modified 3 years, 1 month ago Viewed 8k times 3 days ago · In Flutter, building smooth and efficient apps requires careful management of resources. Nov 30, 2024 · Flutter is known for its declarative and reactive programming style, making UI development smooth and intuitive. The object that creates a RenderObject is in charge of disposing it. When your widget (page) extends StatefulWidget, it's not mandatory but you can override the dispose method to execute additional instructions Sep 19, 2017 · If you want to dispose and initState without going through the intermediate step of having a widget be replaced with null, try giving your StatefulWidget a new UniqueKey when the recreate button is pressed. Dec 9, 2020 · Code content is not important. Apr 6, 2019 · However there is no method to override a dispose function in a StatelessWidget. Oct 19, 2019 · flutter: BlocProvider. I am wondering where is the correct place in the controlle Apr 22, 2019 · I am trying to understand BLoC pattern but I cannot figure out where or when to call dispose() in my example. instance is moved to the new location. My prob Apr 30, 2024 · Because the dispose function cannot be async, and even if the Future. Another solution is to check the "mounted" property of this object before calling setState () to ensure the object is still in the tree. However, I have a situation w API docs for the dispose method from the EditableTextState class, for the Dart programming language. It's object needs Oct 7, 2021 · To safely refer to a widget's ancestor in its dispose() method, save a reference to the ancestor by calling dependOnInheritedWidgetOfExactType() in the widget's didChangeDependencies() method. Dec 2, 2021 · I already know if I want to use stream listen in method to a snapshot so i need to use StreamSubscription then dispose it using . May 5, 2020 · I am facing an issue in which dispose method is not called after changing screen in flutter . And May 28, 2021 · When you are navigating to from widget A to B the first will only completely dispose() and deactivate() after the transition completes. 1 onPageChanged: will run the function we give it each time a page is viewed. This documents the intended usage, and it will generate a static analysis warning from flutter analyze / dartanalyzer if an override neglects to invoke it. Dispose releases the memory allocated to the existing variables of the state. But got Duplicate GlobalKey detected in widget tree. API docs for the dispose method from the AppLifecycleListener class, for the Dart programming language. The documentation for State. Some solutions include: Setting a separate variable and saving it when the widget is disposed so as to keep it alive but Riverpod lint suggests not using ref inside dispose method. Aug 6, 2021 · As you can see I need to dispose some members of the bloc after I finish from them, and that is done by adding a dispose event. First of all here is the source code. I wonder why you are using ChangeNotifierProvider. if you have provided an ancestor with a pointer to a descendant's RenderObject). However, I didn't find something similar when it comes to cubit. Like some sort of dispose function in changeNotifier provider. If this render object has created any children directly, it must dispose of those children in this method as well. Oct 30, 2025 · In some cases, it's useful to run a callback function every time the text in a text field changes. Aug 24, 2020 · Flutter dispose MethodChannel Asked 5 years, 3 months ago Modified 4 years, 11 months ago Viewed 2k times I'm learning Flutter and I have in my app, two textFields linked to textControllers in an AlertDialog to get the input from a user as text and display it in cards in the body of the screen. 6 days ago · API docs for the dispose method from the State class, for the Dart programming language. Jul 16, 2022 · I want to release everything when leaving the current screen. To eventually dispose the provider state you close the keepAlive link: Oct 2, 2020 · I expected the dispose method on each removed widget to be called immediately they are removed from the list. Now, if I wait 5 seconds, for example, and then confirm the time, this error will occur: setState () called after dispose () I literally API docs for the dispose method from the TransitionRoute class, for the Dart programming language. Jul 8, 2022 · I'm working with PageController and after the last page I want to change view, so I should dispose the controller. onC Jul 13, 2021 · This method will call the init function inside the stateless widget. How are they different? Nov 21, 2024 · A handler to correctly dispose listeners, timers, controllers etc. Mar 3, 2023 · i am trying to call request when user close the application i tried to call the request inside on dispose function but not working and i tried to use WidgetsBindingObserver but i didn't find any c Nov 13, 2025 · API docs for the dispose method from the HeroController class, for the Dart programming language. Linking onPageChanged to Rebuild Pages There's no built-in connection between onPageChanged and rebuilding of pages in a PageView. Jul 7, 2023 · In Flutter, the setState() method is used to update the state of a widget and trigger a rebuild of the widget tree. @override Future<void> dispose( 3 days ago · For this reason, State objects can defer releasing most resources until the framework calls their dispose method. May 14, 2025 · I'm implementing a dependency cleanup system in Flutter using get_it and injectable where certain repositories need to be disposed when the user logs out. Apr 21, 2018 · To avoid situations like this, the framework has a State class, with an initState and dispose lifecycle. Try correcting the name to the name of an existing method, or defining a method named 'dispose'. yaml Dart only dependencies: disposing: ^1. You can access a keepAlive() function on a ref of an AutoDispose Provider, calling that will stop the provider from auto disposing. For example, you might want to build a search screen with autocomplete functionality where you want to update the results as the user types. pushReplacement(ScreenA. 6 days ago · If a State 's build method depends on an object that can itself change state, for example a ChangeNotifier or Stream, or some other object to which one can subscribe to receive notifications, then be sure to subscribe and unsubscribe properly in initState, didUpdateWidget, and dispose: In initState, subscribe to the object. Learn how to use Flutter dispose method in building high-quality Flutter applications. The best way to do it using via Flutter dispose. And when I show this form, tap the first field, type something in it, then tap the Aug 11, 2020 · Note: I want to use the stateless widget as in stateful its possible but any idea about achieving this in stateless. This widget is on my first page and when I push() to another page, the timer keeps running and fetches images in the background. I've created a Disposable pattern but want Nov 25, 2022 · Riverpod is a powerful reactive caching and data-binding framework. Actual results: The dispose method of the removed widget is called only after the next widget is built. It's crucial to call this function before the Flutter application exits to ensure that subprocesses don't remain in a waiting state, leading to issues like port exhaustion and memory leaks. dispose }, const []) Jan 1, 2024 · disposeについて教えて。😣 dispose メソッドは、Flutterでウィジェットのライフサイクルを管理する際に使用されます。特に、StatefulWidget でウィジェットが画面から完全に削除されるときに呼び出されます。このメソッドは、リソースの解放、リスナーの解除、アニメーションコントローラーの停止 Jul 19, 2021 · I have a simple Flutter form inside a stateful widget with a bunch of text fields to capture credit card details. Here is a snippet from flutter documentation "If a [State]'s [build] method depends on an object that can itself change state, for example a [ChangeNotifier] or [Stream], or some other object to which one can subscribe to receive notifications, then be sure to subscribe and unsubscribe properly in [initState Mar 14, 2023 · It is possible but it is also planned to make this even easier in the near future. Getx advising me to use onClose method of GetxController for this. If I call controller. The controller is actually a Notifier. Jul 9, 2021 · Want to build drawer with flutter web. This method does not notify listeners, and clears the listener list once it is called. API docs for the dispose method from the Route class, for the Dart programming language. If the application calls non-Flutter methods to remove Flutter based UI such as platform native API to manipulate the platform native navigation stack, the framework does not know if the developer intends to eagerly free resources or Nov 2, 2023 · By following these practices and ensuring that you dispose of resources correctly, you can significantly reduce the risk of memory leaks in your Flutter application. Oct 30, 2025 · list On this page chevron_rightAdded missing `dispose ()` for some disposable objects in Flutter Mar 10, 2024 · 一、概述 在去年对公司的 Flutter 混编项目做了性能优化，其中最坑的，莫过于从 Flutter 页面返回原生页面时 dispose 方法竟然不走，如图所示 这就导致一些资源无法得到释放，如 fijkplayer 所使用的视频资源。在原生页面与满屏视频的 Flutter 页面之间反复进出时，内存占用越来越高 上图是进出 7 次视频 API docs for the dispose method from the PlatformRouteInformationProvider class, for the Dart programming language. SnackBar is opened on one screen and when I go to another screen, the Snackbar stays still opened. This will prevent Flutter from associating the old State with the new StatefulWidget. Apr 6, 2020 · You need to use the dispose() method of State or the default constructor of ChangeNotifierProvider. 8k1979141 If in A, print notification arrived in A If in B, print notification arrived in B But the problem is, when I switch back to A from B (B was called from A using Navigator push), it still prints Notification arrived in B Either the dispose doesn't dispose completely or I am missing something May 21, 2024 · In this article, we will discuss the right way to dispose Flutter google map's controller the right way. Nov 2, 2023 · The dispose function of this service class is responsible for tasks such as terminating subprocesses. myProvider. Installation Add dependencies to your pubspec. then how can i dispose the controller? Mar 18, 2018 · When I click the raised button, the timepicker is showing up. Here is a good explanation of Navigation. Jan 2, 2020 · The dispose method does not apply directly to the Dart language. flutter: 2. For example, in the case of portrait orientation, I need to show a widget Apr 25, 2021 · Rebuild on Swipe If the goal is to tell our widgets to rebuild when pages are swiped back/forth, we can use the onPageChanged callback of PageView. Sep 30, 2025 · Reactivity made simple. Can anyone help? Jun 9, 2022 · How to Dispose Remove or Close Getx Controller. Nov 4, 2024 · In today’s article, we’ll dive into one of the most critical lifecycle methods in a Flutter StatefulWidget: the dispose() method. Sep 7, 2023 · In the world of Flutter app development, managing state efficiently is a crucial aspect of building high-quality and responsive applications. Because of that, you Sep 16, 2022 · How to let Flutter dispose of a state that's held by a `GlobalKey`? Asked 3 years, 2 months ago Modified 3 years, 2 months ago Viewed 734 times May 31, 2019 · The preferred solution is to cancel the timer or stop listening to the animation in the dispose () callback. Let’s learn how to make the most of it so we can use it effectively. May 4, 2025 · Dispose is a method triggered whenever the created object from the stateful widget is removed permanently from the widget tree. API docs for the dispose method from the RestorableProperty class, for the Dart programming language. pop, dispose() is not called if bringing app to background #139790 Disposing is a flutter package adds dispose method on many classes. The I have changed the widget to stateful widget and override 'dispose' method to change the 'closed' value and it works, but's this solution reduce they need to change 'closed' value from the closing buttons, but I'm looking for a way to avoid declaring 'closed' variable and do 'if' checking after all the future calls. I cant find any information how Flutter decides if it is disposing a widget. 1 See if you are really looking for a disposing your stream in flutter. Object will be generated while generating the page, and disposed when the page is Mar 5, 2019 · Hello I just found that Flutter will not call widget's dispose method after android application exit. Dec 2, 2021 · This is for whoever is facing a problem related to having to clear all their providers’ values at a certain point in their app’s user flow. Is this because new flutter version? Also, I realized there is the deactivate () method, should I use deactivate () method instead of dispose () method? [UPDATED] Sep 12, 2018 · E/flutter (22681): #0 State. Use build () or dispose () method to remove the controllers. Nov 11, 2018 · Brilliant! Seems very strange that the StatefulBuilder built in to Flutter doesn't have this capability. 6 days ago · API docs for the dispose method from the Image class, for the Dart programming language. This will ensure we discard any resources used by the object. Jul 29, 2020 · I/flutter (23644): LocalNotifier's dispose() was called by provider. <anonymous closure> In my statefull widget I have @override void initState() and I also have @override void dispose() My question is when I use the drawer back button, How can I dispose of my Stateful Widget completely? This is the call for widget Nov 13, 2025 · API docs for the dispose method from the DrawerControllerState class, for the Dart programming language. dispose() before super. If a listener is added twice, and is removed once during an iteration (e. I remove HomeScreen fro Feb 10, 2023 · To explain the order of calling super. flutter: No ancestor could be found starting from the context that was passed to flutter: BlocProvider. (⇧⌘\\ in IntelliJ and Android St I don't feel like using Stateful Widget for its `dispose ()` method whenever I am using any `controller` even I don't have anything to do with the state of the widget in real time. The latter automatically disposes of the object created in the create function. But I don't know if defining the bloc as a member variable of the stateful widget is the right approach? Jun 14, 2024 · I'm using provider for state management and I wanted to know what's the right of way disposing a text editing controller so that there will be no memory leaks. Feb 10, 2025 · In Flutter, the `dispose ()` method is used to release resources when a StatefulWidget is removed from the widget tree. 1 day ago · In Flutter, **InheritedWidget** is a powerful tool for efficiently propagating state down the widget tree. Jun 1, 2020 · When I switch from tab 2 to tab 1, tab2 dispose will be called. , when ListenableBuilder s are used, the API docs for the dispose method from the FocusNode class, for the Dart programming language. Dec 7, 2021 · Now my problem is that when I back and pop the navigator Navigator. Instead, you call the dispose method for the controller inside the dispose method of the Widget in which it is contained. The dispose() method… 6 days ago · API docs for the dispose method from the ShortcutRegistry class, for the Dart programming language. I came up w Jan 6, 2019 · This seems to be a similar problem to this one (Flutter: to close a webview when you left the page), but I can't figure out how to implement the dispose event. The key was: [LabeledGlobalKey#c9754] GlobalKey reparenting is: Oct 1, 2020 · I have a list if widgets that I swipe off the screen. Consumers of this class must decide on whether Mar 13, 2019 · I have two screens in my app. g. Feb 16, 2022 · Flutter // Understanding dispose Asked 3 years, 8 months ago Modified 3 years, 8 months ago Viewed 973 times Jan 23, 2021 · According to the documentation dispose method Called when this object is removed from the tree permanently. After it goes out of vision it gets disposed and with it its state. How can I prevent dispose of provider and keep using it in all pages? API docs for the dispose method from the AnimationController class, for the Dart programming language. That means that in between, both A and B are being rendered, hence, the first didn't dispose yet and the second has already inited — which makes sense, otherwise you wouldn't be able to see both at the same time when transitioning. Here is what your code could look like to take advantage of this feature of Flutter and it does not change how you call the code to bring up the dialog: Feb 11, 2021 · I've got a stateful Widget that's on the navigation stack; HomeScreen() For some reason, when it should be removed from the stack, it doesn't appear to be calling dispose(). It is generally overridden and called only when the state object is destroyed. So, my question is: Do I need to dispose the cubit instances and how? It worths mentioning here that I am using MultiBlocProvider. dispose() in Flutter, we should look at how objects are created. I have thought of creating its own dispose function to dispose the controllers used, and just create a variable of this widget for those that will use this widget so that I can call the dispose function. Aug 2, 2020 · On the code below, profileBloc is initialized in EditProfileScreenState's didChangeDependencies() method. dart class FormProvider Dec 17, 2023 · In Flutter and Dart, if I mix-in a ChangeNotifier, or use ValueNotifier<T> for example (_counter = ValueNotifier<int>(0)) should I always dispose() it? I understand that it has a dispose() member, which clears the listeners list. Here, I basically have a DeviceProvider objects that wrap Apr 15, 2022 · Flutter Lifecycle: How to correctly use dispose ()? Asked 3 years ago Modified 3 years ago Viewed 365 times Nov 13, 2025 · This method returns immediately if dispose has been called. dispose() I get this error: _IntroView void dispose () Discards any resources used by the object. To use it, simply provide a callback that returns a Future of any kind. Subclasses should override this method to clean up any links between this object and other elements in the tree (e. ════════ Exception caught by widgets library ═══════════════════════════════════════════════════════ Jan 27, 2020 · The method 'dispose' isn't defined for the class 'GoogleMapController'. Jan 31, 2023 · Disposal of the WebView was recently fixed by flutter/plugins#6996. evxcck jarog hdq wnw jvelnow lezpbm yfl luhbs yobw gzabn gyjx dkvgmdksq gdm djity uni