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Introduction

Flutter is a popular open-source mobile app development framework that allows developers to build high-quality, visually appealing, and performant mobile applications for iOS and Android platforms. Flutter provides a wide range of pre-built widgets and tools that make the development process easier, faster, and more efficient. One of the most commonly used widgets in Flutter is the image picker, which allows users to select images from their device’s gallery or camera. In this article, we will explain how to open an image with image picker, crop and save it in Flutter, and provide you with a step-by-step guide on how to do it.

What is Image Picker?

Image Picker is a pre-built widget that allows users to select images from their device’s gallery or camera. With the image picker widget, you can easily pick images and integrate them into your mobile application without having to build your own custom widget. The image picker widget provides a simple and intuitive interface for users to select images. It provides several configuration options that allow you to customize the widget to suit your needs.

How to Open Image with Image Picker, Crop, and Save in Flutter

Step 1: Add Dependencies

To use the image picker widget, you need to add the dependencies to your Flutter project. Open your project’s pubspec.yaml file and add the following dependencies:

Step 2: Import Dependencies

After adding the dependencies, import them into your project. Add the following imports to your dart file:

Step 3: Request Permission

Before opening the image picker widget, you need to request permission from the user to access their device’s gallery or camera. Add the following code to your dart file to request permission:

Step 4: Open Image Picker

After requesting permission, you can now open the image picker widget. Add the following code to your dart file to open the image picker:

Step 5: Crop Image

After selecting the image, you can crop it to the desired size. Add the following code to your dart file for flutter crop image square:

Step 6: Save Image

After cropping the image, you can now save it to gallery. Add the following code to your dart file to save the image:

Full Example