How to Create a Custom Splash Screen with Image in Flutter

Learn how to design a custom splash screen in Flutter with an image that loads efficiently, ensuring a smooth user experience.
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This video is based on the question https://stackoverflow.com/q/63835903/ asked by the user 'Allen Hu' ( https://stackoverflow.com/u/6888181/ ) and on the answer https://stackoverflow.com/a/63836274/ provided by the user 'galloper' ( https://stackoverflow.com/u/7248289/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Creating a Custom Splash Screen with Image in Flutter

When developing a mobile application, having a visually appealing and functional splash screen is critical for creating a great first impression. However, you may encounter issues with image loading that can leave your splash screen blank. In this guide, we will tackle the problem of implementing a custom splash screen in Flutter, specifically focusing on efficiently loading an image.

The Problem

Let’s say you're building an app that requires asynchronous loading before transitioning to the main screen. To manage this, you might create a splash screen as a widget rather than using the native splash screen. While this approach can work well, it often leads to the challenge of images not loading quickly enough, resulting in a blank splash screen.

Key Issues:

Asynchronous loading: The splash screen appears before the necessary setup is complete.

Slow image loading: If your image takes too long to load, it can make your splash screen look unprofessional.

The Solution

To resolve these issues effectively, we can leverage the precacheImage() function in Flutter to ensure that our image is loaded before the splash screen is displayed.

Step-by-Step Implementation

Here is a structured way to implement a custom splash screen with an image that loads quickly.

1. Pre-caching the Image

First, you need to preload your image using the precacheImage() function. This should be done in your main application widget.

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2. Defining the Splash Screen

Now, in your MySplashScreen, you can simply display your image normally.

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Additional Tips

Optimize Image Formats: If you are still facing slow loading issues, consider using a JPEG format instead of PNG, as JPEG files generally load faster.

Testing in Release Mode: Make sure to test your application in release mode with the command flutter run --release. The debug mode can sometimes lead to slower performance.

Conclusion

By leveraging Flutter's precacheImage() function and optimizing image formats, you can create a polished and efficient custom splash screen that enhances your app's user experience. Make sure to follow the outlined steps, and you'll have a delightful splash screen in no time!

If you have any questions or need further assistance, feel free to leave a comment below!