The maintainState property is a boolean value that controls whether or not state variables in the child widget are preserved when the child widget is not visible.If true, then the space that the widget occupied remains there. By default, maintainSize is false, which means that the space left by the widget shrinks to 0 as if the widget were never there. The maintainSize property is a boolean value that controls whether or not the space that would have been occupied by the child widget remains there when visible = false.It’s important to note that in order to use this property, the five maintain properties described below must have their values set to false. The replacement property is an alternative widget that displays in place of the child widget when visible = false.When visible = false, the child widget is invisible. When visible = true, the child widget is visible. The visible property controls whether or not the child widget defined above is visible or not.The child property is the widget that will be visible or invisible. The child property is the only property that requires a value assigned to it.This provides the Visibility widget with a lot of flexibility for various use cases. The Flutter Visibility widget contains a number of properties to enable customizing its behavior. build a demo app to apply what we’ve learned.learn how to build a Visibility widget for use in an app, and.explore the properties of the Flutter Visibility widget,.For example, when a player knocks an object, it can disappear from the scene.įlutter provides a widget named Visibility to enable these types of user experiences. Showing and hiding widgets could also be useful when designing a data visualization user interface, where you can selectively hide a component, such as a pie chart segment.Īnother application is when designing a game. If the calculator is in portrait orientation, then the advanced scientific keys may not be visible, but if it’s in landscape orientation, then all the scientific keys can be visible. When designing user experiences for your app, you may decide to show or hide widgets as conditions change in the app, such as in response to user actions or to adapt to available space on the screen.Ĭonsider a calculator app, for example.
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