Скачать или смотреть Solving the White Screen Issue When Opening the Keyboard in React Native

Discover how to fix the `white screen` flicker issue when opening the keyboard in React Native. Learn effective solutions to prevent content resizing with simple adjustments.
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Addressing the White Screen Flicker in React Native

If you're developing with React Native, you may have encountered a common visual glitch: a white screen flicker that appears for a moment when the keyboard opens. This can disrupt the user experience and make your app feel unresponsive. In this guide, we'll explore this problem and provide you with a clear solution to ensure your app remains smooth and visually appealing when the keyboard is triggered.

The Problem: White Screen Flicker and Content Resizing

When users tap on a TextInput field, a white screen may flash briefly before the keyboard appears, and simultaneously, the content may shift upward. This behavior can lead to an inconsistent user interface, which is undesirable in any application. The essential question here is:

Is there a way to stop the app from resizing on keyboard open while allowing the keyboard to overlay the application?

Understanding the Solution

Fortunately, there is a straightforward fix to this issue by making use of the softwareKeyboardLayoutMode property in your app.json configuration. Let’s discuss how to apply this solution effectively.

Step-by-Step Guide to Fix the Flicker Issue

Locate Your app.json File: This is where you configure various properties of your Expo application. Open your project directory and find the app.json file.

Add the Configuration: To make the keyboard behavior smoother, you can specify the softwareKeyboardLayoutMode as pan. This setting allows the keyboard to slide over the application content without causing it to resize.

Here’s how you should modify your app.json:

[[See Video to Reveal this Text or Code Snippet]]

Save the Changes: After editing, save your app.json. This ensures that the changes will take effect the next time your app is launched.

Test Your Application: Launch your application again and interact with the TextInput fields to confirm that the white screen flicker has been eliminated and that the keyboard is now overlaying the app without any flicker or resizing.

Sample Code Implementation

To give you context on how these changes fit into your React Native app, here’s a sample code snippet of how your main App component might look with a TextInput:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By applying the softwareKeyboardLayoutMode: "pan" setting in your Expo configuration, you can effectively eliminate the white screen flicker caused by the keyboard popping up. This small adjustment can lead to a smoother and better user experience in your React Native applications. Keep this method in mind as you continue to develop and refine your app!

If you have any questions or insights about this issue, feel free to leave a comment below. Happy coding!