3. Flutter Basic: Widgets & Debugging

What is the role of a Widget?

• Widgets are used to build the User Interface of the app.

• A widget always draws something visible onto the screen.

• Widgets are the only type of Dart objects you can use in Flutter apps.

What is not true about Stateless widgets?

• Stateless widgets are not state-sensitive and remain static throughout its lifecycle.

• Stateless widgets can't keep track of changes and update the UI based on these changes.

• Stateless widgets can never show updated content.

One of the following is not a Flutter widget

• SwitchButton

• TextButton

• OutlinedButton

One of the following is the right definition for TextField Widget

• A widget to select between 2 options; on or off.

• A widget that acts as a holder of other widgets.

• A widget that enables text inputs, it displays the keyboard when touched.

What's the core characteristic of both a Row and a Column?

• Both can hold more than one child.

• Both are scrollable.

• Both can be styled in great details.

What's the difference between Column and ListView?

• ListView can hold more than one child.

• ListView is scrollable by default.

• ListView can hold more items.

Which statement is not true about debugging?

• It does not help in avoiding dreadful and expensive consequences.

• It is the process of finding and resolving existing or potential bugs.

• It is an important phase in the lifecycle of software development.

What is a Widget?

• It's an alternative name for a Flutter app.

• Widgets are the core building blocks of the Flutter User Interface.

• Widgets are a core Dart feature.