If you are an iOS developer working with Objective-C, you may encounter the need to programmatically obtain the height of the keyboard in your app. This is a common requirement when designing user interfaces, especially when dealing with text input or form fields. Fortunately, it is possible to achieve this functionality using Objective-C. Here's how you can get the keyboard height in Objective-C. 1. Register for Keyboard Notifications: First, you need to register for keyboard notifications in your view controller. You can do this by adding observer for `UIKeyboardWillShowNotification` and `UIKeyboardWillChangeFrameNotification` in your `viewDidLoad` method. This will allow you to receive notifications when the keyboard is about to be shown or when its frame is about to change. 2. Handle the Keyboard Notifications: Once you have registered for the keyboard notifications, you can implement the corresponding notification handlers to respond to the keyboard events. When the `UIKeyboardWillShowNotification` or `UIKeyboardWillChangeFrameNotification` is received, you can extract the keyboard height from the `userInfo` dictionary attached to the notification. This dictionary contains information about the keyboard's frame, including its height. You can then use this height in your code as needed. 3. Cleanup: It is important to remember to unregister for the keyboard notifications when they are no longer needed. You can do this by removing the observer for the notifications in your `viewDidDisappear` method. This ensures that your app does not continue to receive unnecessary keyboard notifications. By following these steps, you can effectively obtain the height of the keyboard in Objective-C. This knowledge can be particularly useful when designing responsive user interfaces that need to dynamically adjust to the presence of the keyboard. With the ability to programmatically obtain the keyboard height, you can create a more seamless and user-friendly experience for your app's users. Whether you're working on a messaging app, a productivity tool, or any other type of app that involves text input, knowing how to get the keyboard height in Objective-C is a valuable skill for iOS developers. By leveraging the power of Objective-C and the iOS SDK, you can confidently tackle this aspect of app development and deliver a polished and professional user experience.