What is the importance of scaffolding in teaching?
When you incorporate scaffolding in the classroom, you become more of a mentor and facilitator of knowledge rather than the dominant content expert. This teaching style provides the incentive for students to take a more active role in their own learning.
What is super in flutter?
super is used to call the constructor of the base class. So in your example, the constructor of CardTitle is calling the constructor of StatelessWidget .
What is InitState in flutter?
InitState() is used to subscribe to the object. Overriding of initState() method performs initialization which depends on the location at which this object was inserted into the tree (like context) or on the widget used to configure this object (or widget).
Why key is used in flutter?
The key parameter can be found on basically every widget constructor, but their use is less common. Keys preserve state when widgets move around in your widget tree. In practice, this means they can be useful to preserve the user’s scroll location or keep state when modifying a collection.
How do you hide keys in flutter?
The most recommended approach I have found is using text assets. In Flutter you just need to load your file containing your secret keys as if your were loading any other asset. That is the shortest way. You can load a json, then parse it with dart:convert , and have your keys.
What are global keys in flutter?
Global keys provide access to other objects that are associated with those elements, such as BuildContext. For StatefulWidgets, global keys also provide access to State. Widgets that have global keys reparent their subtrees when they are moved from one location in the tree to another location in the tree.
What is BuildContext flutter?
A handle to the location of a widget in the widget tree. This class presents a set of methods that can be used from StatelessWidget. build methods and from methods on State objects. BuildContext objects are passed to WidgetBuilder functions (such as StatelessWidget. build), and are available from the State.
Can we build custom widgets in flutter?
Start a new Flutter project in Android Studio and choose Flutter Package for the project type. Put your custom widget in the lib folder. Add a folder named example to the project root. In there, add a Flutter app that demonstrates how to use your widget.
What is MaterialApp in flutter?
MaterialApp Class: MaterialApp is a predefined class in a flutter. It is likely the main or core component of flutter. We can access all the other components and widgets provided by Flutter SDK. There are many more widgets that are accessed using MaterialApp class. Using this widget, we can make an attractive app.
What is builder in flutter?
According to the official flutter documentation, the Builder Class is defined as: A platonic widget that calls a closure to obtain its child widget. Platonic means the simplest possible thing of that kind. The term closure is just another name for a lambda function.