Flutter Tips & Tricks

A collection of all the Flutter tips & tricks I share on Twitter and LinkedIn. If you find this useful, give it a star! 🌟

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I'm adding new tips regularly (newest at the top 👇).

ID	View on GitHub (this repo)	Twitter Post	LinkedIn Post	Link on codewithandrea.com
137	Combining Streams with RxDart	link	link	link
136	Use IntrinsicWidth, not fixed width	link	link
135	Replace Container with nested widgets	link	link
134	Debug Paint Size (DevTools)	link	link
133	SelectionArea across multiple widgets	link	link
132	Highlight oversized images with the Flutter DevTools	link	link
131	Async Dependency Initialization with requireValue (Riverpod)	link	link
130	8 Steps to Follow When Building Your Next Flutter App	link	link	link
129	VSCode Debug Toolbar in Command Center	link	link
128	Error Handling during App Startup	link	link
127	Full-Text Search: Firestore Extensions	link	link
126	How to work with webhooks?	link	link	link
125	Xcode 15 DT_TOOLCHAIN_DIR issue	link	link
124	Payment options on mobile and web	link	link
123	Top reasons for using a realtime backend	link	link
122	First steps to tackle when starting a new mobile app	link	link
121	Fetching vs Mutating data with Riverpod	link	link	link
120	Flutter web: redirect to an external URL	link
119	VSCode Quick Fix: Create constructor for final fields, required named	link
118	How to Inspect Network Requests with the Flutter DevTools	link
117	Are global variables bad?	link
116	Measuring execution time in Dart	link
115	Find the Invalid Switch Expression 🧐	link
114	6 steps to minimize your Firebase Bill	link
113	Conditional JSON parsing in Dart 3	link
112	Switch Matrix in Dart 3	link
111	Destructuring Lists in Dart	link
110	Getting a Future from a FutureProvider with Riverpod	link
109	Record Equality in Dart 3	link
108	MediaQuery as InheritedModel	link
107	Happy Birthday with records in Dart 3	link
106	Return without async/await	link
105	Creating an empty Flutter project	link
104	[core/duplicate-app] A Firebase App named "[DEFAULT]" already exists	link
103	Firebase Auth flow in 5 minutes	link
102	Storing API keys in a JSON file	link
101	Backend-agnostic Flutter apps	link
100	Firestore Security Rules Playground	link
99	Firestore OR queries 🔥	link
98	Pagination with FirestoreListView	link
97	Riverpod Notifier with build arguments	link
96	Cloud Firestore - Cache Size	link
95	StreamProvider with Riverpod Generator	link
94	Fix missing ProviderScope error with Riverpod Lint	link
93	Add a part file with Riverpod Snippets	link
92	Firebase Billing and Cost Calculator	link
91	Got linter issues? Use dart fix --apply	link		link
90	Using context.mounted in Flutter 3.7	link
89	Using serverTimestamp() in Firestore	link
88	Get a single item from a list	link
87	The Accessibility Tools package	link
86	Dart code samples in the Firebase docs	link
85	Use ChatGPT to do custom styling in Flutter	link
84	Using the query builder UI in Cloud Firestore	link
83	Update packages with the Version Lens VSCode extension	link		link
82	Cloud Firestore collection count	link
81	How to use the new Riverpod Generator package	link		link
80	How to use Future.wait() in Dart	link
79	String multiplication in Dart	link
78	How to nest generated files in VSCode	link
77	Using AnimatedContainer to animate Container properties	link
76	Enable sticky scroll in VSCode	link
75	Using build_runner in watch mode	link
74	Functions as arguments (with tear-off)	link
73	How to define type aliases in Dart	link
72	Use type annotations for safer code	link
71	Prefer const over final over var	link
70	Flutter app localization in 5 min	link
69	When to use SizedBox.shrink() to return an empty box	link
68	--enable-asserts flag in Dart / Flutter	link
67	REST Client extension for VSCode	link
66	The HtmlUnescape package	link
65	How kIsWeb works in Flutter	link
64	When to use each Riverpod provider?	link
63	Explicit error types with Either	link		link
62	Exception handling: try/catch vs Result	link		link
61	Errors vs Exceptions in Flutter	link
60	Do not use BuildContexts across async gaps (and what to do instead)	link
59	Flutter Riverpod: How to Register a Listener during App Startup	link		link
58	Using test tags in Flutter	link
57	Singletons in Flutter: Drawbacks	link		link
56	Riverpod: Async init with Provider Overrides	link
55	How to run multiple test variants	link
54	Riverpod tip for less boilerplate (Passing Ref)	link
53	How to Create DartPad Examples from GitHub Gists	link		link
52	How to Add a Custom Test Timeout in Flutter	link		link
51	Golden Image Testing with Robot Testing	link
50	Dart 2.17: Enhanced Enums with Members	link		link
49	Dart 2.17: Super Initializers	link		link
48	Testing functions that throw	link		link
47	Why write automated tests?	link
46	Riverpod: difference between ref.watch, ref.read, ref.listen	link
45	The Map.update() method	link		link
44	AsyncValue.guard() vs try/catch	link		link
43	How to write a reactive in-memory store with RxDart	link
42	How to Generate and Analyze a Flutter Test Coverage Report in VSCode	link		link
41	Using Fake Repositories for Testing	link
40	Anatomy of a Riverpod Provider	link
39	Flutter Project Structure: Feature-first or Layer-first?	link		link
38	Popular architectures for Flutter development	link		link
37	Rules to follow for good app architecture	link
36	GoRouter: go vs push	link		link
35	AsyncValue vs FutureBuilder & StreamBuilder	link		link
34	How to use WidgetsBindingObserver	link
33	VSCode extensions to speed-up your Flutter workflow	link		link
32	Flutter tip: use composition aggressively	link
31	How to use the Flutter Widget Inspector	link
30	VSCode launch configurations	link
29	Domain-Driven Exception Handling	link
28	DDD: The Domain Model	link
27	Better Comments Extension for VSCode	link
26	Running tests with GitHub actions	link
25	How to run Flutter Integration Tests at Hyper Speed	link
24	Simplified Flutter App Localization	link		link
23	The Gap Widget	link
22	App Development workflow in 6 steps	link
21	Repositories as abstract classes (program to interfaces, not implementations)	link		link
20	How to configure multiple Firebase environments with FlutterFire CLI	link
19	How to use Robot Testing to write more readable widget tests	link
18	How to create a Flutter GridView with content-sized items	link		link
17	6 common sources of errors in Flutter apps	link
16	Easily handle loading and error states	link
15	AsyncValueWidget: a reusable Flutter widget to work with AsyncValue (using Riverpod)	link		link
14	How to navigate programmatically between tabs in Flutter	link
13	Responsive Flutter card layout with SizedBox & Center	link
12	How to Validate a TextField in Flutter	link		link
11	How to Style an ElevatedButton in Flutter	link		link
10	How to Generate Fake data with the Faker package	link
9	Chat UI with message bubbles (revisited)	link
8	Chat UI with message bubbles	link		link
7	How to set the border radius on a Flutter container	link
6	Flutter Fix all command	link
5	Use the DevTools to identify Jank and Shader compilation issues	link
4	Flutter Lints package	link
3	Accept payments with the Stripe SDK	link
2	Flutter create --sample	link
1	Flutter reusable Split View on mobile, desktop and web	link		link

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How to Contribute

If you find any typos, errors, broken links, or other mistakes, feel free to open a PR.

If you have more Flutter tip ideas, please send me a DM on Twitter.

Thank you for all your input!

LICENSE: MIT