Скачать или смотреть How to Close a Modal in React Native Controlled by a Different Component

Learn how to properly close a modal in React Native when its visibility is controlled by a parent component. Follow these steps to implement the solution effectively.
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This video is based on the question https://stackoverflow.com/q/65257195/ asked by the user 'Jeremy Brooks' ( https://stackoverflow.com/u/4750159/ ) and on the answer https://stackoverflow.com/a/65261040/ provided by the user 'Minh Hưng Trần' ( https://stackoverflow.com/u/9787233/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting Modal Visibility in React Native

If you're a beginner in React Native, managing modal visibility can be quite tricky. A common issue arises when a modal component's visibility is controlled by a prop from a different component. In this guide, we will solve the problem of how to close a modal that is opened by a different component using props.

The Problem: Closing the Modal

In a recent project, a user faced challenges with a modal component that had two props: gameData and isModalVisible.

The isModalVisible prop was tied to a state variable named isVisible in the Home.js file, which turns true when a Touchable Opacity is pressed.

The user couldn't figure out how to close this modal since the visibility was controlled externally by the Home.js component.

The Solution: Implementing a Close Function

The solution to this problem lies in creating a dedicated function in the Home.js file that will change the state and notify the modal to close. Let's break down the steps.

Step 1: Create a Function to Hide the Modal

In your Home.js file, you can define a function called hideModalz that will change the state variable isVisible to false.

Here’s how to implement it:

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

Step 2: Pass the Hide Function to the Modal Component

Next, you need to make sure that this function is accessible in the modal component. Therefore, pass it as a prop to the Modalz component:

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

Step 3: Call the Hide Function from the Modal

Now, in your FeatureGameModal.js file (referred to as Modalz), you'll need to use the passed prop to call the function and hide the modal when appropriate (for instance, when a close button is pressed).

Add the following code in Modalz:

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

This will close the modal whenever the close icon is pressed, utilizing the hideModalz function defined in Home.js.

Conclusion

With these simple steps, we successfully implemented a way to close a modal in React Native that is controlled by a parent component. By creating a hide function in the parent, passing it as a prop to the modal, and calling it appropriately, we manage the visibility of our modal effortlessly.

Feel free to use this approach in your own projects and streamline your modal management in React Native!