Скачать или смотреть Resolving Maximum update depth exceeded in Custom Drawer with React Navigation

Learn how to fix the `Maximum update depth exceeded` error when creating a custom drawer in React Navigation. We’ll break down the solution step-by-step for better understanding.
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This video is based on the question https://stackoverflow.com/q/63222593/ asked by the user 'lanierc' ( https://stackoverflow.com/u/10024036/ ) and on the answer https://stackoverflow.com/a/63222604/ provided by the user 'schoenbl' ( https://stackoverflow.com/u/10686893/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting the "Maximum Update Depth Exceeded" Error in React Navigation Custom Drawer

When working with React Navigation in a React Native application, you might encounter the frustrating "Maximum update depth exceeded" error. This often arises during attempts to create custom components like drawers that navigate between screens. In this post, we will explore the cause of this error and the solution to resolve it effectively.

Understanding the Problem

The "Maximum update depth exceeded" error generally indicates that your code is attempting to set the state too frequently—usually in a cycle. In the case of custom drawers created using React Navigation, this often occurs due to incorrect usage of navigation functions which can trigger unnecessary re-renders, especially when using modern functional components and hooks.

In your custom navigation drawer, you might have set it up to navigate to a screen like this:

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

This approach can inadvertently cause your component to enter a re-rendering loop. As stated, you’re not using class components, hence, you need to ensure you're not directly calling functions that cause state updates within render methods or during lifecycle methods like componentDidUpdate.

The Solution

To eliminate the error, you will need to slightly modify how you’re invoking the navigation function in your NavigationDrawer component.

Step-by-Step Fix

Locate the Navigation Logic in your NavigationDrawer component. Here’s the critical section of your original code:

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

Wrap the Navigation Call in an Arrow Function. You should instead use an arrow function, like so:

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

Why This Works

By wrapping the navigation call in an arrow function, you prevent it from being executed immediately during the rendering phase. This approach effectively sets up the call to happen only when the user interacts with the DrawerItem. As a result, it avoids triggering unnecessary state updates and breaking the render cycle.

Updated Code Snippet

Here is how your NavigationDrawer component should look after applying the fix:

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

Final Thoughts

The Maximum update depth exceeded error can be confusing, especially when you're getting started with hooks and functional components in React Native. However, with the right understanding of how navigation and re-renders work, you can easily solve these issues. Just remember to always wrap function calls in an arrow function when dealing with such cases.

Now you can freely implement your custom drawer without running into that pesky error again! Happy coding!