Flutter & Dart - The Complete Guide

Explore core Flutter and Dart fundamentals by building a dice-roller app that generates random values and displays corresponding dice images, while learning widgets and fundamental syntax.

Explore the Flutter project structure, focusing on the lib folder and main.dart, understand how .dart files enable editor support, and recognize platform folders, build, test, and pubspec.yaml configuration.

See how the main.dart file is parsed by Dart. Then watch it get translated, compiled into native iOS or Android code, bundled, and executed on devices.

Explore how code uses keywords and identifiers to create instructions, illustrated by a basic Dart file, and how syntax highlighting in VS Code aids learning Dart and Flutter.

Explore how to start a Flutter app from scratch in Dart by defining a main function, using runApp, and calling functions to display a user interface.

Learn how to import features from packages by managing dependencies in pubspec.yaml and using import statements to access Flutter's material.dart and runApp, with editor suggestions and error tips.

Learn how the main function serves as the Dart app entry point, how runApp activates Flutter UI, and why arguments matter when starting a Flutter app.

Learn how Flutter builds user interfaces by passing a widget or widget tree as the argument to runApp, and by nesting built-in and custom widgets to compose the user interface.

Discover how to build a basic Flutter user interface with at least two core widgets like MaterialApp passed to runApp, and how widgets are classes instantiated with input values.

Explore how MaterialApp uses named arguments to define the app UI, with the home parameter determining what shows on screen and the Text widget as an example.

Combine multiple widgets by using the text widget with named and positional parameters, wrapping text in quotes, and run the app to display hello world on screen.

Learn how const improves Dart performance by reusing widgets like Text, reducing memory duplication, and following editor hints to apply const where appropriate, as shown with MaterialApp and Text.

Add the scaffold and center widgets to wrap text and center it on the screen. Format the widget tree with trailing commas and use auto format to boost readability.

Understand why Dart is a type-safe language and how values have multiple types, such as string, int, and object. Learn how type annotations guide widgets like text, MaterialApp, and runApp.

Configure the scaffold background in flutter using Colors or the Color constructor, and understand that widgets are objects exchanging color data like ARGB values to render the UI.

Identify that all values are objects and use a Container with BoxDecoration and LinearGradient to create a gradient background behind the Center, showcasing widget nesting and decoration in Flutter.

Explore how Dart uses generics and lists to pass a list of color objects for gradients, using Color or Colors to build a multi-color background and applying const for BoxDecoration.

Learn how to configure gradients in Flutter by adjusting the begin and end AlignmentGeometry to flow from top left to bottom right.

Style text in Flutter by using a TextStyle to set color and fontSize via the text widget constructor, without extra wrappers.

Break up a growing Flutter widget tree by creating custom, reusable widgets and a gradient container to improve readability and maintainability, using Dart classes.

Explain how widgets and value types are objects, and how classes serve as blueprints for those objects in Dart and Flutter. Learn about properties, methods, dot access, constructors, and instantiation.

Create a custom Flutter widget by defining a Dart class like GradientContainer that extends StatelessWidget, implements build(context) returning a Widget, and use a gradient Container in the widget tree.

Learn how to add a constructor to a custom widget, forward a key to the super StatelessWidget using super.key or a colon initializer, and optionally mark the constructor const.

Split your Flutter code across multiple files to keep each file lean and readable, using clear naming like gradient_container.dart and explicit imports to connect files.

Practice creating a custom widget in Flutter by building a StyledText widget in a separate file, importing it into GradientContainer, and using it to encapsulate styled text.

Learn how variables act as data containers to store values like alignments, enabling startAlignment and endAlignment outside the widget tree, and why var supports reassignment while const can be unsafe.

Learn how Dart infers a variable’s type from its initial value, when to use explicit types to avoid dynamic, and how null safety with Alignment affects optional values.

Learn when to use final versus const for Dart variables, distinguishing compile-time constants from runtime values, and improve safety and performance with examples like Alignment.topLeft and BoxDecoration.

Learn to make widgets reusable by using a constructor to map input values to instance variables, so configurable styled text widgets can display dynamic text instead of hard-coded values.

Make gradient widgets reusable by passing colors as arguments to GradientContainer, via a colors list or two color parameters, using required named or positional constructors in Dart.

Register and display dice images in a flutter app by adding assets/images, configuring pubspec.yaml, and using image.asset with width; explore multiple constructor functions for image and gradient containers.

Add a dice button under the image using a Column to stack widgets, and pass a function to onPressed—either an anonymous function or a named rollDice method.

Center the content vertically by setting the column's mainAxisSize to min, and style the text button with TextButton.styleFrom to adjust foreground color, font size, and padding.

Explore how pressing a button updates a state variable (activeDiceImage) to switch the dice image using rollDice, and debug via print statements in the debug console.

Learn how to transform stateless widgets into stateful ones, manage internal state with setState, and build responsive dice-roller UI using a two-class pattern (DiceRoller and _DiceRollerState) in Flutter.

Generate random dice rolls with dart:math Random and nextInt, update the dice image path via string interpolation, and optimize by creating a single Random object outside the state.

Create a dice roll app from an empty main.dart using runApp and Flutter widgets. Learn Dart’s object-oriented types, stateless and stateful widgets, build methods, and constructors for reusable user interface.

Dive deeper into Flutter and Dart by building a quiz app with random question order, a summary screen, and restart options, while mastering advanced widgets and conditional list rendering.

Create a new flutter project, clear main.dart to start from scratch, add the assets/images, and build the starting screen using material components; compare your solution in the next lecture.

Learn to build a Flutter start screen by wiring main.dart with runApp, importing material.dart, using MaterialApp and Scaffold, and creating a StartScreen StatelessWidget in start_screen.dart as the app body.

Wrap the start screen with a container to apply a gradient background from top-left to bottom-right. Build a column with a centered image, styled text, and an outlined start button.

Learn to add icons to Flutter buttons with the icon constructor, combining label, onPressed, and style to navigate pages. Use the icon widget and Icons class, e.g., arrow_right_alt.

Explore how to add transparency to widgets in Flutter, comparing the opacity widget with a color overlay on images, and learn when to prefer color over opacity for performance.

Navigate to a questions screen by wiring the button to replace StartScreen. Create two stateful widgets, quiz.dart and questions_screen.dart, returning a MaterialApp and enabling conditional rendering and lifting state up.

Switch between screens by storing widgets in a variable and using setState to rebuild the UI, teaching conditional rendering with an activeScreen that toggles StartScreen and QuestionsScreen.

Lift state up in Flutter by passing a function value from the quiz widget to StartScreen, enabling onPressed to trigger a state change in QuestionsScreen.

Override initState to initialize activeScreen with StartScreen(switchScreen) and safely reference switchScreen after object creation, using a nullable activeScreen to ensure correct timing.

Learn to render screens conditionally in Flutter using ternary expressions and comparison operators. Use string-based identifiers for start and questions screens to infer the active screen.

Explore conditional rendering in Flutter using the if keyword instead of ternary expressions. Build a locally scoped screenWidget in build to switch between StartScreen and QuestionsScreen based on activeScreen.

Define a quiz data model with a QuizQuestion class and a dummy questions list. Organize files into models and data folders to drive the quiz screen.

Configure a quiz interface by placing the question text above a column of answer buttons, using SizedBox for spacing and double.infinity for full-width layout.

Create a reusable answer button widget in flutter by extending StatelessWidget, exposing text and onTap, and styling an elevated button with color, white text, rounded corners, and padding.

Import the questions data, then retrieve the current question and its answers using list indexing and dot notation to output text and answer options dynamically.

Dynamically generate answer buttons by mapping currentQuestion.answers to AnswerButton widgets, then spread the resulting iterable with the spread operator into the column’s children to build a responsive quiz UI.

Apply alignment, margin, and padding in Flutter to stretch answer buttons across the column with margins, center the text, and shuffle answers before moving to the next question or results.

Learn how to shuffle list items in Dart and Flutter by copying the list, using List.of, and returning a shuffled copy with a getShuffledAnswers method.

Manage the questions index as state in a stateful widget, calling setState when an answer is chosen to update currentQuestionIndex and show the next question and its answers via onTap.

Center the answer button text with text align center in the elevated button. Make the question text bigger and bold, and apply a different font family.

Use flutter pub add google_fonts to install the package, then import google_fonts and apply fonts like Lato in Flutter text widgets.

Learn how to pass data via functions across Flutter widgets, lift state to the Quiz widget, store selected answers, and show the results screen after all questions.

Import questions from package:adv_basics data questions.dart and use setState to stop the quiz when selectedAnswers.length equals questions.length, then reset selectedAnswers for a new attempt.

Create a Flutter results screen that shows how many questions were answered correctly and lists each question with the correct answer and the user’s choice, plus a restart quiz button.

Pass the selected answers to the results screen by adding List<String> chosenAnswers as a required named argument in the constructor, and forward this list from quiz.dart to output summary statistics.

Explore using maps in Dart to build a summary data structure and populate it with a for loop, pairing question text, correct answer, and user answer for each question.

Build a flutter and dart question summary that renders a list of maps into rows and columns, using type casting and toString to show question indices and answers.

Create flexible Flutter layouts by combining columns and rows to show questions, user answers, and correct answers, then present a results screen with summary data.

Learn how to fix overflow in Flutter by wrapping the inner column with an Expanded widget, which constrains width within a row and enables text to wrap.

Derive total and correctly answered question counts in a Flutter app by using the questions list and summary data, filtering with where and reading length.

Learn to fix a content box height with SizedBox and enable scrolling using SingleChildScrollView in Flutter, ensuring overflow is handled and content remains accessible.

Learn how leading underscores mark private classes and properties in Dart, and explore optional gatherers and arrow functions for concise, getter-style code like summaryData and shuffledAnswers.

Build a Flutter learning quiz with a results screen and restart option. Learn Dart and Flutter basics, including runApp, data and function passing, conditional user interface with if, and maps.

Develop debugging skills for Flutter apps by reading and understanding error messages, using the debug mode, and exploring Flutter DevTools to fix issues efficiently.

Introduces a starting Flutter project with deliberate bugs, shows running on an emulator to reproduce result screen errors, and guides debugging to fix issues affecting the overall screen.

Learn to read Flutter error messages during development, open the VS Code debug console for stack traces, and fix type casting by using the correct key (question index).

Debug your flutter app in debugging mode, set breakpoints, and use the watch window to trace why question index goes out of range, revealing the need to reset selected answers.

Use Flutter DevTools to inspect a running app, view the widget tree, and analyze layout with the layout explorer. Profile mode boosts performance while debugging and logging aid error fixes.

Explore adding interactivity in Flutter, handling user input and validation, and applying global theming. Build an expense tracker app with a list and chart, including modal overlays and dialogues.

Create a new Flutter project expense_tracker, replace main.dart with the content, and build a stateful expenses widget to show a chart and expenses list with a modal to add items.

Create a Dart expense data model in Flutter, with title, amount, date, and a unique id generated by UUID, using named parameters and an initializer list.

Define a fixed set of categories with a Dart enum to avoid typos. Apply Category as a custom type in the expense model and drive UI outputs.

Create dummy expenses in the expenses state class by adding a registeredExpenses list and creating Expense objects (Flutter Course, cinema) with today’s date and work or leisure categories for display.

Create a lean expenses list using ListView.builder, feeding itemBuilder and itemCount to render only visible items, improving performance for long expense lists.

Pass a registeredExpenses list to the ExpensesList widget, import the file, and wrap the inner column with Expanded to correctly size and display the list.

Create an expense item widget as a card in a Flutter and Dart project, using padding, a column and row layout, a spacer, and a dynamic icon with date formatting.

Add a category icons map in the expense model and use a getter to format the date with intl, displaying category-specific icons for food, travel, leisure, and work.

Set up a top app bar with a title and plus icon button, using AppBar and Scaffold to open a modal overlay for adding expenses and theme options.

Open a modal bottom sheet by pressing the plus button, using showModalBottomSheet with context and a builder to display and dismiss the overlay in Flutter.

This lecture demonstrates building a NewExpense stateful widget inside a ModalBottomSheet, presenting a multi-row form with a TextField for the title and an input decoration label.

Store user input from a text field on every keystroke using onChanged, assign it to enteredTitle, and submit with an elevated button that prints the latest value to the console.

Learn to use TextEditingController in Flutter to manage text field input, replacing onChanged. Dispose controllers to prevent unnecessary memory usage and access input via controller.text when saving.

Add a new text field for entering an expense, use a numeric keyboard, label it, store and display the value, and include a cancel text button for the modal overlay.

Create an amount text field with a dedicated text editing controller, set keyboard type to number, and prefix with a dollar sign, while disposing and logging inputs.

Close the modal overlay by wiring the cancel button to Navigator.pop(context) and prepare a layout with a date selector beside the input, attaching a date to the expense.

Create a date input beside an amount field in Flutter by wrapping widgets in Expanded, and open a date picker with a calendar button using showDatePicker.

Explore handling date selection with futures in Dart using showDatePicker, then await or use then to obtain pickedDate, store it in _selectedDate, and format or show no date selected.

Add a Flutter dropdown button to select a category in the expense form. Map Category values to dropdown items, display uppercase names, and store selected category with setState for validation.

Master combining and/or conditions to validate form inputs, including trimming the title, parsing the amount with double.tryParse, and checking nulls for selectedDate, amount, and title to show errors.

Learn to display an error dialog in flutter using showDialog and AlertDialog for invalid input, with a title, content, actions, and return after showing to prevent further processing.

Learn to save new expenses by wiring an addExpense function into the Expenses Dart list, updating the UI with setState, and exposing the function to the NewExpense widget via onAddExpense.

Close the overlay after adding an expense with Navigator.pop in _submitExpenseData, then enable a fullscreen modal by setting isScrollControlled to true and use fromLTRB(16, 48, 16, 16) to avoid obscuring inputs.

Implement swipe-to-dismiss in a Flutter expenses list using the Dismissible widget, pairing each item with a unique ValueKey and handling onDismissed to remove data.

Learn to show a fallback message when no expenses exist and use ScaffoldMessenger to display snackbars with undo actions, restoring deleted items at their original position.

Flutter's theming mechanism lets you customize colors and text styles through the MaterialApp and ThemeData, using copyWith to override selected aspects across screens.

Explore how to set up and apply a color scheme in Flutter, using ColorScheme.fromSeed, copyWith overrides, and appBarTheme to tailor scaffold colors and elevated button styles.

Master global theming in Flutter by copying and overriding the base theme to customize color schemes, card themes, elevated button styles, and text themes across the app.

Apply theme data across widgets, access text themes like title large, and customize colors via color schemes from the theme, while fine-tuning with copyWith, margins, and dismissible backgrounds.

Create a dark color scheme with fromSeed and configure a dark theme in material app; enable themeMode system to follow device settings and adapt elements for dark mode.

Learn to implement a chart by introducing an ExpenseBucket model, using a for-in loop to sum expenses per category, and compute total expenses for chart scaling.

Learn to add an alternative named constructor to ExpenseBucket, filter a list of expenses by category using where, and initialize the bucket with an initializer list for chart-ready category buckets.

Build a dynamic expense chart in Flutter by implementing ExpenseBucket buckets and ChartBars in chart.dart and chart_bar.dart, using FractionallySizedBox and MediaQuery for dark and light mode.

Explore showing a snack bar, a modal bottom sheet, Flutter dialogs, and managing input with text fields, dropdowns, and a date picker, while using context and disposing text editing controllers.

Continuing the expense tracker project, learn to build a responsive and adaptive app by changing layouts for different screen sizes, detecting screen and platform information, and creating adaptive widgets.

Discover how responsive apps adapt to portrait and landscape layouts in Flutter, using adaptive widgets to optimize UI layout and leverage available width.

Lock the app to portrait orientation using SystemChrome set preferred orientations. Initialize Flutter binding and call ensure initialized before locking, then run the app in the then callback.

Learn to build a responsive Flutter UI that switches between column and row layouts based on available width using media query, expanding charts with Expanded to adapt to orientation changes.

Explore how Flutter widgets size themselves under parent constraints, and learn why using Expanded inside rows or columns constrains lists and charts to available height or width.

Make the modal responsive to the keyboard by using MediaQuery.viewInsets.bottom for bottom padding and wrapping the content in a SingleChildScrollView to ensure all inputs stay reachable in landscape and portrait.

Understand how to use safe areas in Flutter to keep UI away from the camera and system bars. Enable the safe area option for modal overlays to preserve padding automatically.

Learn to build a responsive Flutter layout with the LayoutBuilder widget by accessing constraints to adapt rows and widgets for different widths, instead of relying solely on media query.

Learn to build adaptive Flutter apps that tailor the user interface per platform using the platform class to show Cupertino dialogue on iOS and material dialogue on Android.

Use MediaQuery and LayoutBuilder to build responsive Flutter UIs, adjust padding for keyboard visibility, enable scrolling, apply SafeArea, and detect platform for widget variations.

Explore Flutter internals, including widget element and render trees, learn how the UI updates and stays performant, and revisit keys to deepen understanding.

Explore the three Flutter trees—widget, element, and render—and learn how Flutter reuses elements and updates only the necessary user interface to optimize rendering performance.

Explore how Flutter updates the UI with a basic demo that contrasts the widget tree, element tree, and render tree, showing how build and createElement drive dynamic state changes.

Refactor and extract widgets to avoid unnecessary rebuilds in Flutter apps, isolating stateful parts with DemoButtons and converting others to stateless widgets to reduce UIUpdatesDemo rebuilds.

Explore how widget and element trees relate, and how keys influence user interface updates by sorting a to-do list with an order state and copy-on-write data handling.

Discover how Flutter reuses elements and updates widget references during reordering, and how keys solve state mismatches by anchoring state to moving widgets.

Learn how keys let Flutter match elements to widgets beyond type, so state follows the widget when items move, using ValueKey or ObjectKey with a unique, data-based value.

Explore how Dart handles mutating values in memory by comparing var, final, and const: final forbids reassignment, const makes lists unmodifiable, and memory addresses influence how updates occur.

Learn how Flutter uses element and rendered trees to update the UI efficiently, why keys preserve state in stateful widgets, and the differences among var, final, and const.

Explore navigation in Flutter apps by building a meals app with multiple screens, tabs, and a side drawer, using screen stacks, pushing and popping screens, and more widgets.

Create a new Flutter project named meals, replace main.dart with the attached version, and install the google_fonts package to apply a Lato text theme and set the main entry widget.

Build a categories screen that displays categories in a two-column grid with GridView, a fixed cross axis count, and 20-pixel spacing, wired into the main app scaffold and app bar.

Define a category model with id, title, and color; create a categories screen using a reusable CategoryGridItem widget and dummy data to build a tappable, navigable grid.

Display category items on a screen by building a gradient decorated container for each category, populate a dynamic grid from available categories, and make items tappable.

Learn how to make grid items tappable in Flutter by wrapping widgets with InkWell to add onTap, a splash color, and rounded corners using BorderRadius.circular(16).

Create a meals screen in a Flutter app, define a Meal model with title, image, ingredients, steps, duration, complexity, affordability, and dietary flags, and render meals from dummy data.

Build a scrollable meals list with ListView.builder, rendering each meal name and showing a centered themed message when the list is empty, using dummy data and itemCount.

Implement cross-screen navigation in Flutter by pushing a meals screen from the categories screen with Navigator and MaterialPageRoute, wiring category taps to load the category's meals.

Pass the selected category to the meals screen and filter dummy meals with where by checking meal.categories contains the category id, loading the filtered meals with a dynamic title.

Create a reusable Flutter meal item using a stack to overlay the meal title and metadata on a network image, with a fade-in placeholder and a tappable card.

Learn to build a reusable MealItemTrait widget in flutter and dart to display meal metadata—duration, complexity, and affordability—with icons, text styling, and centered layout.

tap meal items to navigate to a meal details screen. the details screen shows the meal title in the app bar and the meal image loaded from a network URL.

Improve the meal details screen by integrating an image, ingredient and step lists within a scrollable column, styling titles with the theme and centered text for readability.

Add tab-based navigation with a bottom navigation bar to switch between categories and favorites using a TabsScreen stateful widget with a dynamic app bar title.

Explore state lifting in Flutter & Dart by passing a toggle favorite function through multiple widget layers to manage a shared favorites list and a dynamic icon button.

Update the favoriteMeals with setState through toggleMealFavoriteStatus to reflect favorites across the tabs and meals screens, and show feedback with ScaffoldMessenger snack bars via showInfoMessage.

Add a side drawer to the Flutter app using Scaffold's drawer and a custom MainDrawer, with a DrawerHeader gradient and ListTile items for meals and filters navigated via onTap.

Learn to wire Flutter drawer navigation via a callback, switching between meals and filters screens through tabs.dart, while managing active filters and closing the drawer when on the same screen.

Build a stateful filters screen in Flutter, using switch list tiles to toggle filters such as gluten-free, with themed text styles and setState to reflect changes in the UI.

Learn how to navigate in Flutter by replacing screens instead of pushing, manage drawers, and implement pushReplacement patterns to control back button behavior.

Add lactose-free, vegetarian, and vegan filters as switch list tiles on the filters screen, with new state variables. Ensure changes save when navigating back and affect category results.

Wrap the screen with WillPopScope to intercept back navigation, build a filters map from the Filter enum (glutenFree, lactoseFree, vegetarian, vegan), and pass it back via Navigator.pop.

Read data returned by a pushed screen via futures and await, using a typed map of filters to booleans, and pass it between screens.

Learn to implement and persist filters across tabs in a Flutter app using a selectedFilters map (glutenFree, lactoseFree, vegetarian, vegan), derive available meals, and pass currentFilters to the filters screen.

Master Flutter navigation across multiple screens using push, pop, and pushReplacement within a screen stack, plus bottom navigation and a drawer to manage tabs and return data to update filters.

Review the drawbacks of cross-widget state in a multi-screen Flutter meals app and learn how Riverpod offers a simpler, app-wide solution that makes complex state management less burdensome.

Identify the challenges of sharing favorite state across screens in a Flutter app and demonstrate passing callbacks through the widget tree, highlighting why a better state management approach is needed.

Explore Riverpod, a modern third-party package that simplifies cross-widget state management in Flutter apps, installable via flutter pub add, with Provider as a notable alternative.

Explore how Riverpod creates a central provider that supplies dynamic values and methods, connectable by any widget via a consumer to listen to and trigger changes, eliminating cross-state passing.

Create a meals provider with Riverpod in flutter, import flutter_riverpod and dummy_data, and expose dynamic cross-widget state for TabsScreen's build method by deriving meals from the set filters.

Learn to wire up Riverpod providers in Flutter by using consumer widgets, ref.watch for data, and wrapping the app in a provider scope.

Create a favorites provider with Riverpod state notifier, exposing a favorite meals notifier via a state notifier provider, and toggle meals immutably with a new list.

Learn how to wire a favorites provider to pass favorite meals to the meals screen, make the screen configurable, and manage favorite updates directly from meal details.

Trigger a notifier method from the meal details screen using Flutter Riverpod, reading the provider's notifier to toggle meal favorites and show snackbars via ScaffoldMessenger.

Introduce a filters provider using Riverpod state notifier to manage a map of boolean filters (glutenFree, lactoseFree, vegetarian, vegan) initialized as false, with an immutable setFilter.

Connect the UI to a Riverpod provider to manage meal filters, initialize local state from the provider, and update the provider with setFilters as users leave the screen.

Move all filter logic to the provider by converting the filters screen to a consumer widget, update filters through the provider notifier, and re-render the ui on changes.

Learn to build a dependent Riverpod provider that filters meals by active filters, using ref.watch to react to changes and move filtering logic from a widget to a provider.

Learn to swap the favorite button icon by watching favoriteMealsProvider, compute isFavorite, and render star or star_border based on meal status.

Explore Riverpod for cross-widget state management in Flutter apps, set up provider scope, and use simple and notifier providers to read values, trigger state changes, and access data across widgets.

Master Flutter animations by adding explicit and implicit animations to widgets, build a custom animation from the ground up, and explore built-in animation widgets for effortless motion.

Explore explicit versus implicit animations in Flutter, building and controlling an explicit animation while comparing with Flutter's pre-built implicit options, and set up a project with google_fonts, transparent_image, and flutter_riverpod.

Add an explicit animation by converting categories screen to a stateful widget and creating animation controller in initState with a SingleTickerProviderStateMixin to slide grid items from the bottom.

Learn to implement explicit animations with an animation controller and AnimatedBuilder, driving a grid view's padding using a listenable animation and improving performance by limiting rebuilds.

Explore how to implement explicit animations in Flutter using SlideTransition, Tween, Offset, and CurvedAnimation, and compare with implicit animations to simplify future UI motion.

Explore implicit animations in Flutter using prebuilt widgets like AnimatedSwitcher to animate icon changes in the meal details screen, including rotation transitions and duration settings.

Master implicit animations in Flutter by using AnimatedSwitcher with a value key to trigger transitions, customize with tween values, and understand when to choose AnimatedCrossFade versus other animated widgets.

Master cross-screen image transitions in Flutter by wrapping the image with a Hero using a unique meal.id tag on both the meals list and the meal details screen.

Learn to add Flutter animations using explicit animation with an animation controller, Animated Builder, Tween and curves, and implicit animations with Animated Switcher and the Hero widget for transitions.