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How to build responsive applications with Flutter
A look at widgets

Changes are usual for an app configuration. When the user rotates the phone either vertically or horizontally, the keyboard appears.
The release of foldable smartphones, multi-window features for Android and Catalyst (the project allowing users to run iOS apps on macOS) for iOS, has uncovered unlimited variations of screen sizes.
If you want your app design to look polished, your app is supposed to appropriately “react” to configuration changes.
Responsive Design From a Business Perspective
Responsive design is a design and development technique allowing an application, website or system to adjust to the size of a user’s screen. It will optimize a user’s browsing experience by making a web page/application responsive for the specific device.
The concept of responsive design lies in using one set of code that adapts to different layout changes corresponding to various devices (smartphones, tablets, and desktop computers).
Responsive Design Goals
- Larger audience. The more devices an app can be run on, the wider audience it will attract.
- Lead users to the purchase. I believe there must…