Flexi
Flexi is a Flutter package that provides a flexible widget for zooming, panning, and rotating child widgets.
Features
- Zoom in and out of a widget.
- Pan the widget by dragging it.
- Rotate the widget using gestures.
- Double-tap to reset the widget to its original state.
- Configurable minimum and maximum scale limits.
- Configurable maximum translation limits along the X and Y axes.
- Enable/disable rotation, scaling, and translation individually.
- Support for custom callbacks on scale start, update, and end events.
Installation
Add the following dependency to your pubspec.yaml file:
dependencies:
flexi: ^1.0.0
Usage
Import the package in your Dart file:
import 'package:flexi/flexi.dart';
Wrap your widget with the Flexi widget:
FlexiGes(
child: YourWidget(),
minScale: 0.8, // Set the minimum scale limit (optional)
maxScale: 2.5, // Set the maximum scale limit (optional)
onScaleUpdate: (offset, scale, rotation) {
// Handle scale update event
},
onScaleEnd: (details) {
// Handle scale end event
},
)
Parameters
- child: The child widget that you want to apply zoom, pan, and rotate features to. (required)
- minScale: The minimum scale factor for scaling the widget. Defaults to 0.8. (optional)
- maxScale: The maximum scale factor for scaling the widget. Defaults to 2.5. (optional)
- onScaleUpdate: A callback function that is triggered during the scale update event. It provides the current offset, scale factor, and rotation angle as parameters. (optional)
- onScaleEnd: A callback function that is triggered when the scale event ends. It provides the scale end details as a parameter. (optional)
- canRotate: Flag to enable/disable rotation. Defaults to true. (optional)
- canScale: Flag to enable/disable scaling. Defaults to true. (optional)
- canTranslate: Flag to enable/disable translation. Defaults to true. (optional)
- returnToOrigin: Flag to enable/disable returning to the original state on double-tap. Defaults to true. (optional)
- enabled: Flag to enable/disable the Flexi widget. Defaults to true. (optional)
- maxTranslationX: The maximum translation value along the X-axis. Defaults to 100. (optional)
- maxTranslationY: The maximum translation value along the Y-axis. Defaults to 100. (optional)
Example
Check out the example directory for a working example of using the Flexi widget.
Running Tests
To run the tests for the Flexi package, use the following command:
flutter test flexi_test.dart
Contributing
Contributions are welcome! Please submit any issues or pull requests via the GitHub repository.
License
This project is licensed under the MIT License.
Feel free to customize the content further based on your package's specific details and testing instructions.
