Скачать или смотреть How to Make Your TextField Lose Focus and Hide the Keyboard in Jetpack Compose

Discover how to implement a searchable TextField in your Jetpack Compose app that loses focus when clicking outside of it, enhancing user experience.
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This video is based on the question https://stackoverflow.com/q/72833025/ asked by the user 'CJR' ( https://stackoverflow.com/u/5328691/ ) and on the answer https://stackoverflow.com/a/72836538/ provided by the user 'Ahsan Ullah Rasel' ( https://stackoverflow.com/u/6054085/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Make Your TextField Lose Focus and Hide the Keyboard in Jetpack Compose

Implementing a functional search bar in your Jetpack Compose application can sometimes lead to unexpected hurdles. One common issue developers face is ensuring that a TextField loses focus and that the keyboard is hidden when a user clicks outside of the TextField. In this post, we will explore how to tackle this problem step-by-step, providing you with a clear solution using Jetpack Compose.

Understanding the Problem

As a developer, you may have encountered a situation where you want the keyboard to dismiss when a user interacts with other parts of the app. This is particularly essential in providing a smooth user experience. However, achieving this in a TextField can be a bit tricky, especially with updates in the Compose library.

In your case, you tried using the deprecated combination of isHintDisplayed = it != FocusState.Active to switch focus states. When switching to the new syntax with isFocused, you faced difficulties getting the desired focus behavior. But don’t worry; we have the perfect solution for you.

Proposed Solution

To address the issue of maintaining focus and managing keyboard visibility, we can use a combination of keyboard options and parent composable behaviors that allow us to control these states effectively. Below is a step-by-step breakdown of how to implement the changes in your code.

Step 1: Update Your ListScreen Composable

Your ListScreen function manages the overall layout. We’ll be modifying it to include a clickable modifier that can manage the keyboard state.

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

Here, we added a hideKeyboard variable, which will be set to true when the user clicks outside the TextField. This variable determines whether we should clear focus.

Step 2: Update Your SearchBar Composable

Next, we’ll update the SearchBar function to incorporate keyboard options and handle the focus and keyboard visibility state.

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

Key Modifications

Keyboard Options: Set keyboardOptions and keyboardActions to handle the keyboard actions better.

Focus Management: Use LocalFocusManager for managing focus directly within the SearchBar composable.

State Management: Introduce parameters to manage the keyboard visibility state effectively.

Conclusion

By following the above steps, you've now successfully implemented a search bar that loses focus and hides the keyboard when a user clicks anywhere outside the TextField. This approach not only enhances user experience but also adheres to best practices in using Jetpack Compose.

Feel free to try this in your project, and let us know how it works! Happy coding!