Return true if the fragment is currently visible to the user.
Syntax
[get: Android.Runtime.Register("isVisible", "()Z", "GetIsVisibleHandler")] public boolIsVisible { get; }
Value
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Remarks
Return true if the fragment is currently visible to the user. This means
it: (1) has been added, (2) has its view attached to the window, and
(3) is not hidden.