A 2D Scrollable and Scalable Flutter Widget.
This example app is included in the package (
LayoutBuilder( builder: (context, constraints) => Transformable( child: Grid(), viewerSize: viewerSize, controller: TransformController( config: TransformConfig( initialTransform: Transformation(offset: startOffset), initialSize: childStartSize, innerBoundRect: innerRect, outerBoundRect: outerRect, ), ), );
Wrap your desired widget in the Transformable widget, and specify the size of the child and the size of the view. To use the maximum available view, wrap this in a LayoutBuilder and use constraints.biggest as the size.
Transformable( child: Grid(), size: Size(100, 100) );
Restrict the allowed area that the child can be moved to by specifying an inner and/or outer boundary rectangle. The inner rectangle is useful in situations like a photo viewer, where you want to make sure the child fills the a given area at all times. The outer rectangle is useful anytime you want to keep the child within a given area.
outerBoundRect restricts the child's size to the size of the view, and restricts the child's position such that no part of the child can be out of the view. The
innerBoundRect restricts the child's size to at least the size of the
innerBoundRect, and restricts the child's position such that the child will completely cover
innerBoundRect at all times.
A new Flutter project.
This project is a starting point for a Flutter application.
A few resources to get you started if this is your first Flutter project:
For help getting started with Flutter, view our online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.
Add this to your package's pubspec.yaml file:
dependencies: transformable: ^1.1.3
You can install packages from the command line:
$ flutter pub get
Alternatively, your editor might support
flutter pub get.
Check the docs for your editor to learn more.
Now in your Dart code, you can use:
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We analyzed this package on Aug 21, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:
Detected platforms: Flutter
References Flutter, and has no conflicting libraries.