android and Flutter Developer Interview Questions and Answers for Freshers

State management in Flutter is done using various approaches like setState, InheritedWidget, Provider, BLoC, Redux, etc.

• setState is the simplest approach for small apps with few widgets.

• InheritedWidget is used for sharing data across the widget tree.

• Provider is a popular state management solution that uses InheritedWidget internally.

• BLoC (Business Logic Component) separates business logic from UI and uses Streams to manage state.

• Redux is a predictable state container that use...read more

Code for swapping two numbers using two variables only

• Use a temporary variable to store the value of one variable

• Assign the value of the second variable to the first variable

• Assign the value of the temporary variable to the second variable

Code for input swapping in Flutter

• Create two TextEditingControllers to hold the values of the input fields

• Use a temporary variable to swap the values of the controllers

• Update the state of the input fields with the new values

Flutter is a mobile app SDK for building high-performance, high-fidelity, apps for iOS and Android, from a single codebase.

• Flutter is developed by Google and uses Dart programming language.

• It allows for hot reload, which means developers can see the changes they make in real-time.

• Flutter has its own set of customizable widgets and also supports Material Design and Cupertino widgets.

• It has a reactive programming model and supports asynchronous programming.

• Flutter is used by po...read more