Flutter pushes declarative UI to its limit in this case. Enable and disable the state of a button resulting from the present of onPressed callback.If the onPressed callback is null, Flutter treat the button as n
These best practices aren’t just limited to Android but could be used applied to any platform like React Native, Flutter, and others as well.Android App Performance Improvement Optimize Images and VideosAny average Android app is bound to have some or the other sections where they need to ...
// counter.dart import 'package:flutter_riverpod/flutter_riverpod.dart'; class Counter extends Notifier<int> { @override int build() { return 0; } void increment() { state++; } } Two things to note: we have a build method that returns an int (the initial value) we can (optionally...
InFlutter Cartesian Chartwidget, you can synchronize the trackball of multiple charts using the available callback events and public methods. A callback event is a callback function or method, which you can pass as an argument to another function or method. It can perform an action when you ...
This is the second and final part of a tutorial that teaches you how to create an app like Runkeeper, complete with color-coded maps and badges!
In this article, we explained how to create the real-time charts using theSfCartesianChartwidget. TheFlutter real-time chartsare the streaming charts that update automatically for every specified amount of time. You can achieve this using the public method calledupdateDataSource.To know more on ...
In this case, we have the top and bottom of the variable, which will be converted to text inside the tag. Now that the template is created let’s load it using Flask. Let’s create a new blueprint in a different file to demonstrate this example: # blueprints/jinja_demo/__init...
If you fail to initialize a late variable, a runtime error occurs when the variable is used. We add the late keyword on all instance variables so we can initialize them lazily in the constructor body. class DoublePoint { late double x; late double y; DoublePoint ( double x, double y,...
With all the hype around Flutter and mobile app development, learning Flutter is both a valuable skill and a gratifying endeavor in its own right. However, the path to learning Flutter is a little unclear due to how new the language is....
Hello, please i need help on how to package my application.I'm currently working on flutter project and i would like to package my flutter application.The...