In Flutter, it tends to be done effectively utilizing Visibility a widget. The widget you need to show or hide must be the child of Visibility widget. In the constructor, pass visibility alternative whose value is a boolean and is put away as the state. Then, at that point, update the value to show or hide the child .
Read moreWhy is Dart late?
The late keyword It’s common to use late in combination with final , to defer the creation of read-only variables to when they are first read . By declaring a non-nullable late variable, we promise that it will be non-null at runtime, and Dart helps us with some compile-time guarantees.
Read moreHow do you avoid late initialization in Flutter?
How to Solve Error? Remember: You have to assign something to the late variable before using it . Here, we have created a nullable variable, which is assigned to the Text() widget, When you use Text(name!) null check operator instead shown like above, you may get “Null check operator used on a null value” Error.
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