DropdownButtonState class - overlay library

Constructors

buttonBounds ↔ Rect: The on-screen bounds of the dropdown button.
getter/setter pair
context → BuildContext: The location in the tree where this widget builds.
no setterinherited
hashCode → int: The hash code for this object.
no setterinherited
isOpen ↔ bool: Whether the dropdown menu is currently open.
getter/setter pair
mounted → bool: Whether this State object is currently in a tree.
no setterinherited
overlayEntry ↔ OverlayEntry?: The overlay entry representing the open menu.
getter/setter pair
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
selectedIndex ↔ int: The index of the currently selected or highlighted item.
getter/setter pair
widget → DropdownButton<T>: The current configuration.
no setterinherited

build(BuildContext context) → Widget: Describes the part of the user interface represented by this widget.
override
closeDropdown() → void: Closes the dropdown menu.
didChangeDependencies() → void: Called when a dependency of this State object changes.
inherited
dispose() → void: Called when this object is removed from the tree permanently.
override
handleKeyEvent(KeyEvent event) → bool: Handles incoming keyboard events to navigate and interact with the menu.
override
initState() → void: Called when this object is inserted into the tree.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
openDropdown() → void: Opens the dropdown menu.
selectItem(int index) → void: Selects the item at the specified index and closes the menu.
setState(VoidCallback fn) → void: Notifies the framework that the internal state of this object has changed.
inherited
toggleDropdown() → void: Toggles the dropdown menu open or closed.
toString() → String: A string representation of this object.
inherited
updateSelectedIndex() → void: Synchronizes the selectedIndex with the current DropdownButton.value.