In Flutter app development, incorporating features to select images from the device’s gallery or capture new ones via the camera is a common requirement. Thankfully, Flutter provides an elegant solution for this through the image_picker plugin.
First ensure you have Flutter installed on your system and a basic understanding of Flutter app development.
Step 1: Adding the Dependency
Begin by updating your pubspec.yaml file to include the image_picker dependency:
dependencies:
flutter:
sdk: flutter
image_picker: ^1.0.7 # (ensure to use the latest version)
After adding the dependency, execute flutter pub get in your terminal to install the plugin.
Step 2: Importing the Package
Import the image_picker package in the Dart file where you intend to utilize it:
import 'package:image_picker/image_picker.dart';Step 3: Implementing Image Selection
Let’s proceed to implement image selection functionality for both the gallery and the camera.
Selecting Image from Gallery:
Future<void> _getImageFromGallery() async {
final XFile? pickedFile = await ImagePicker().pickImage(
source: ImageSource.gallery,
);
if (pickedFile != null) {
// Handle the picked image file
setState(() {
_imageFile = File(pickedFile.path);
});
}
}
Capturing Image from Camera:
Future<void> _captureImageFromCamera() async {
final XFile? pickedFile = await ImagePicker().pickImage(
source: ImageSource.camera,
);
if (pickedFile != null) {
// Handle the captured image file
setState(() {
_imageFile = File(pickedFile.path);
});
}
}
In the above snippets, _imageFile represents a File variable where the selected image is stored for further processing.
Step 4: UI Integration
Integrate the image selection functions with your UI. For instance, trigger _getImageFromGallery() when users tap a button to select an image from the gallery, and _captureImageFromCamera() when they wish to capture an image using the camera.
ElevatedButton(
onPressed: _getImageFromGallery,
child: Text('Select Image from Gallery'),
),
ElevatedButton(
onPressed: _captureImageFromCamera,
child: Text('Capture Image from Camera'),
),Check out these:
How to use image_picker in Flutter
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