Top 19 Pro Tips and Tricks for Speeding Up Flutter App Development

Tips and Tricks for Speeding Up Flutter App Development

Google introduced an open-source mobile application framework named Flutter, as a brand new interface for vibrant iOS and Android app developers to deliver a single code base for both the platforms. Being a professional mobile development company, we offer best-in-class Flutter app development services to give the best compliance and next-gen look to your mobile applications using Flutter.

As we have been developing awesome Flutter apps in Android for our global clientele, we discovered some fantastic Flutter tips, tricks, and libraries. If you’re new this Flutter/Dart world, some of these Flutter tips and tricks might help you.

19 Best Flutter Tips and Tricks

1. Create Awesome Intro Screen in 10 Minutes
Don’t have an awesome idea for your intro screen? No worries, the Introduction Screen will help you create an awesome intro screen for you in just 10 minutes. It allows you to create a screen at launcher for example, where you can explain your app. This Widget is fully customizable with a great design and will continue to evolve in the future.

If you’re looking to add something more to it, you can hire Android app developers from us for bespoke intro screen design and development.

2. Become a Superstar with Flutter Code Snippet
If you want to enhance productivity, Flutter Code Snippet can help you easily create commonly used Flutter classes and methods. For example, if you type the shortcut streamBldr and singleChildSV, you can easily create StreamBuilder Widget or SingleChildScrollView Widget respectively. You can use the Flutter snippet in Android Studio or VSCode.

3. Create Amazing Icons Using Font Awesome
For creating amazing icons in your app, you don’t have to be a professional designer. Just use the Font Awesome for Flutter and you will be able to create awesome icons for your app in minutes.

If you have specific requirements, you can approach us for Flutter app development services.

4. Leverage the Benefits of Dependency Using
As your app grows over time, at some point of time you’ll need to put your app’s logic in classes that are separated from your Widgets and then inject it as dependency wherever needed. It’s a good practice to keep your widgets from having direct dependencies as it makes your code better organized and easier to test, debug, and maintain. But now you need a way to access these objects from your UI code. The get_it is a simple Service Locator for Flutter and Dart projects with some additional benefits. You can use this instead of InheritedWidget or Provider to access objects from your UI.

5. Reuse Data Using the Singleton Design Pattern
Singleton is used when only one instance of a class is required to control the action throughout the execution. However, it can easily get wrong if you are not using it carefully. You can reuse the data using the Singleton design pattern.

6. Say No to Widget Rebuild with const Constructor
If you want to avoid unwanted widget rebuilds, you can always use const constructor. In the below-given code, the instance of BoxDecoraion will remain constant even if the setState is called.
width: 250,
height: 250,
decoration: const BoxDecoration(
borderRadius: BorderRadius.only(
bottomLeft: const Radius.circular(30.0),
bottomRight: const Radius.circular(30.0))),

If all these things seem difficult for you to handle, you can always count on our professional Android app developers. As a leading Android app development company, we offer a complete suite of Native Android development services to help you capture the massive population of Android users and increase your ROI.

7. Format Your Code Using dartfmt
It’s a good practice to add Trailing Commas (,) as it will help you format your code using dartfmt. After that, you can save yourself from the headache of formatting code by using dartfmt.

8. Write Cleaner Code Using the Spread Operator
Dart 2.3 introduced some useful features and one of them is the Spread Operator. This is useful when you need conditional UI widgets, especially when you have a nested conditional UI widget.

We, at Android Developer, have a team of qualified Android app developers who provide a clean and well-formatted codebase that is easily understood and readable to other developers working on the same project. So, whether it is Native Android development services, Android wearable app development, or Flutter app development services, you can hire Android app developers for your needs.

9. Create a Custom Extension to Reduce Repetition
When coding, make sure you avoid writing the same code again and again. You should not repeat the same functionality in several places. Let’s say you need to convert HTML tags to be displayed on the UI since Flutter still doesn’t support HTML tags completely, and you need to use the same code in multiple places, you can create a custom extension method that can be used wherever required.

10. Reduce Code Using Double Dot, The Cascade Operator
Dart comes with a single dot (.) operator. The double dot (..) operator is known as the cascade operator. You can use the cascadeoperator to reduce code and save typing time when multiple method calls on the same object are made.

11. Use the Safe Area to Keep the iPhone Notch from Encroaching on Your App’s UI
It feels annoying when you find that some part of your content is getting cut by the iPhone 10+ notch. The same could happen with Android phones as well. You can use the SafeArea widget to keep the pesky notification bars and phone notches from encroaching on your app’s UI. The widget uses a MediaQuery to check the screen dimensions and pads its child Widget to match accordingly. This makes sure your app is safe on both Android and iOS.

12. Use Key to Make ListView Rendering Efficient
For efficient ListView rendering, you can use keys on each of them. This will make your list view rendering more efficient.

13. Use Performance Overlay for Efficient Debugging
Performance Overlay indicates the time taken by each frame to build. At the top, there is the GPU time (Raster Thread) and at the bottom is Ui Time (Ui Thread). If you find a red bar in the UI graph, the Dart code is too expensive. If you see a red vertical bar in the GPU graph, the scene is too expensive to render.

14. Do Not Profile in the Debug Mode
Avoid profiling in the debug mode as you will not get accurate performance indication. By default, the debug mode is much slower than production mode. The Simulator/Emulator does not indicate how your app actually works on Real Device.

15. Measure Execution Time Using Tracing
You can use the Tracing to record how much time is taken to execute.

void DoSomeThing(){
// Write your code

16. Use Shortcut to Declare Multiple Variables
You may be declaring variables in this way:

int mark = 10;
int total = 10;
int amount = 10;
You can even declare this way if you’re lazy to write again and again
int mark =10,
total = 20,
amount = 30;

17. Intelligent Logging, Just Log Anything
Although we are accustomed to logging the string message, we can also pass other objects such as List, Set, or Map. You can find more information about log level, logPrinter, logOutput in the logger doc.

18. Set Cross-platform Icons
Are you finding it difficult to set icons for both the Android and iOS versions of your app? Not to worry. We will give you two easy ways to handle it using the Flutter Launcher Icon.

First, setup your config file
flutter_launcher_icons: “0.7.3”

android: “launcher_icon”
ios: true`
image_path: “assets/icon/icon.png”

Then run the package.

flutter pub get
flutter pub run flutter_launcher_icons:main

If you’re new to Android Flutter app development, it is always best to hire Android app developers for professional help. Our dedicated Android app developers are always ready to help you out in your app development journey.

19. Add More Power Using BasicUtils
If you want more power during some crucial times, consider using the basic_util. It has a list of awesome methods such as SortUtils, ColorUtils, DateUtils, IterableUtils, CryptoUtils, HttpUtils that give you full productivity at the right time.

Wrapping Up
So these are some of the best Flutter tips and tricks that we discovered while rendering Flutter app development services to our clients from different industry verticals. Please feel free to check out our Flutter app portfolio to see what we’ve done in Flutter app development.

If you’re looking for reliable Flutter app development services for your Android app, you may hire Android app developers from us and see how they can help you grow.


Q.1. Is Flutter good for app development?
Ans. Though Flutter can impact the size of the end app, it offers optimum performance as rendering is made with speed up to 120 FPS. Thanks to the native compilation for ARM processors, simple rendering, and a set of integrated widgets and tools, the Flutter framework makes the app development process much easier and simpler.

Q.2. How is flutter transformed into a native app?
Ans. Flutter is an open-source framework that can be used to create native apps on both Android and iOS without compromising the performance, unlike other cross-platform frameworks. This UI software development framework created by Google works on the “write once, run anywhere” principle, which proves to be a cost-effective solution for people who are low on budget.

Q.3. Is Flutter better than Native?
Ans. When choosing a development framework for your app, you may be thinking whether to invest in Native Android app development services or Flutter app development services. Well, we’ll are here to help you out. Native Android apps developed using Kotlin deliver excellent User Experience, high quality, and performance. On the other hand, a cross-platform Flutter app will be more capable of delivering high-quality as well as native user experience. The best part of the Flutter app is its cross-platform compatibility.

Have more questions? Feel free to ask our Flutter specialists right away!