What’s New in Flutter Volume 4: Flutter
The year’s last major release, 2021 Volume 4, from Syncfusion included a number of noteworthy additions and enhancements across all of our platforms, including Flutter.
In addition to more adaptable widgets, our Flutter package includes DataGrid, Charts, and Maps. Using a single code base, they enable you to develop rich, excellent applications for Windows, macOS, Linux, iOS, and Android.
We’ll see the new features in our Flutter New Volume 4 release of 2021 in this blog.
New features and improvements
I will just discuss the salient features of every widget. The full specifics of the new features are available in our release notes and the soon-to-be-published what’s new blogs for each of the separate components.
Calendar
The Calendar widget now has the following enhancements, which you can enjoy
- While swiping or hovering over calendar appointments, receive a callback with their details.
- You can see considerable improvements in the appearance and content format of the allowedViews UI.
Charts
The Flutter Charts widget includes the following features in Volume 4 release
You can categorize the axis labels using the new multi level labels feature in Cartesian chart
The default format of the date-time axis label shows more details about the date. Take a look at this picture.
You can trim, shift, or hide the data labels that overflow from their space in pie, doughnut, pyramid, and funnel charts.
DataGrid
The DataGrid widget includes the following enhancements:
Display a dropdown button for choosing the number of rows to be shown on each page.
Select multiple rows by tapping them, pressing the SHIFT key, and holding it
Render the DataGrid’s width and height based on the number of rows and columns available when the grid’s parent size is infinite.
Specify separate swipe offsets for right and left swiping.
Date Range Picker
In the Date Range Picker, reverse the direction of the extendable range selection. The direction can be changed to either forward, backward, both, or neither. You are unable to pick date ranges if you select the none option.
Maps
The Maps widget displays a pointer on the corresponding solid bar legend while hovering over the shapes or bubbles in it.
PDF Viewer
The following useful features were added to the Flutter PDF Viewer widget
You can load the encrypted or password-protected documents.
The PDF Viewer renders page regions in high resolution when you zoom in on a page.
Range Selector and Slider
The Range Selector and Slider widgets provide support to these features in the Volume 4 release
- The tooltip can be set to display always.
- Callbacks were added to notify the user about the start and end interactions performed with the thumb.
Treemap
The Treemap widget has these new features in the 2021 Volume 4 release
- Display a pointer on the corresponding solid bar legend while hovering over the tiles in it.
- Increase or decrease the duration of the tooltip visibility.
Common change
- We switched from utilizing the ThemeData class for all of our Flutter widgets to the ColorScheme class.