An image picker is a common component in mobile apps, allowing users to select or capture images for various purposes such as setting profile pictures. This tutorial explains how to create an image picker in Flutter using the image_picker plugin, which simplifies the process by providing methods to pick images or videos from the device's gallery or camera. The guide includes step-by-step instructions for building an example Flutter app, demonstrating how to integrate the plugin, create necessary widgets, and handle image selection and display. Key components discussed include setting up the Flutter environment, adding dependencies, and implementing functionality to allow users to choose between selecting an image from the gallery or capturing a new one with the camera. The article emphasizes practical application through code examples and provides insights into testing the app on an Android emulator, highlighting the simplicity and effectiveness of the image_picker plugin in Flutter development.