User Interface:

The User Interface (UI) is everything designed into an Information Device with which a person may interact. UI Design isn't just about buttons and Navigation menus but about the interaction between the user and the app. The UI design isn't how a product looks, but how it works.

While Designing User Interface, Developers need to care about each and everything that display on the screen. Where will we place the button and Call-to-action for our users to easily understand the flow of the app? Does a Particular interface even need a button? if yes, what do those buttons need to do? These Questions are the examples to show, how developer prepare their mind to design UI.

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For a Good User Interface, We Should provide our Users with the right actions to take to figure out how the app works for the user to accomplish their goal.

What Makes a Great User Interface?

The Interface design is the first thing that User will see, Therefore Immediately influencing the User's perception of the app right from the start. It is the responsibility of the UI designer to enhance the brand within the interface. UI Design Ultimately helps guide users through the interface using visual aids. Here are a few elements of a great User interface.

• » Clarity: The Interface Avoids Confusion and Ambiguity by making everything clear through language and Visuals.
  » Familiarity: Users Like to see familiar features, buttons, or call-to-actions. This includes common symbols, icons and color to convey a message such as red to exit out or delete.
  » Responsiveness: The app must be responsive and the loading speed should not lag or feel slow to user. Providing feedback when a screen is loading will enhance the User interface by keeping user informed on what's happening, for example, Informing then when the request is being submitted or the entered data is being read etc.
  » Consistency: Keeping UI consistent across our application is important. because it allow users to recognize usage patterns.
  

Follow the given links to Know the various tools and Building blocks that are used to compose user Interface in Xamarin.Android apps.

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