Скачать или смотреть Overriding onChangeText and onSubmitEditing in React Native: The Proper Approach

Discover how to effectively manage the props of TextInput components in React Native. Learn why `React.cloneElement` may not work as expected and the best practices for customizing your input components.
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This video is based on the question https://stackoverflow.com/q/75771609/ asked by the user 'cleblanc' ( https://stackoverflow.com/u/1813336/ ) and on the answer https://stackoverflow.com/a/75792361/ provided by the user 'RubenSmn' ( https://stackoverflow.com/u/20088324/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

If you're working with React Native and using the TextInput component, you might encounter a common issue when trying to override the onChangeText and onSubmitEditing props. This often happens when the TextInput is wrapped within other elements, such as View. In this guide, we'll explore why this occurs and how to effectively manage your component props by creating a custom component.

The Problem

In your component's structure, you may have a layout that looks like this:

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

When you attempt to override props like onChangeText and onSubmitEditing using React.cloneElement, you might find that it only works when your footerInput is simply a TextInput, but not when it's wrapped in other components.

This confusion arises because React.cloneElement will only clone the first child element, which in this case is the View component, not the TextInput. As a result, props intended for the TextInput do not get passed correctly.

The Solution

To solve this issue effectively, you should create a custom component that encapsulates the TextInput and accepts the necessary props directly. Here’s how to implement it:

Step 1: Create a Custom Component

Instead of using footerInput, define a new custom component called FooterInput which will accept and handle the props as shown below:

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

Step 2: Use the Custom Component

In your main component, replace the usage of footerInput with your newly created FooterInput component. You can control its rendering using a state variable, like so:

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

Conclusion

By creating a custom component, you gain full control over the TextInput and its associated props. This approach not only solves the problem of prop overriding with React.cloneElement but also enhances your component's readability and maintainability.

Now, you can easily manage your TextInput and stay focused on building your application's features without running into unexpected behavior. If you're facing similar challenges, give this method a try to streamline your development process in React Native.