Added in API level 21

StateListAnimator

open class StateListAnimator : Cloneable
kotlin.Any
   ↳ android.animation.StateListAnimator

Lets you define a number of Animators that will run on the attached View depending on the View's drawable state.

It can be defined in an XML file with the <selector> element. Each State Animator is defined in a nested <item> element.

Summary

XML attributes
android:animation Animation to use on each child.
android:state_activated State value for StateListDrawable , set when a view or its parent has been "activated" meaning the user has currently marked it as being of interest.
android:state_active State value for StateListDrawable , set when a view or drawable is considered "active" by its host.
android:state_checkable State identifier indicating that the object may display a check mark.
android:state_checked State identifier indicating that the object is currently checked.
android:state_enabled State value for StateListDrawable , set when a view is enabled.
android:state_first State value for StateListDrawable , set when a view or drawable is in the first position in an ordered set.
android:state_focused State value for StateListDrawable , set when a view has input focus.
android:state_last State value for StateListDrawable , set when a view or drawable is in the last position in an ordered set.
android:state_middle State value for StateListDrawable , set when a view or drawable is in the middle position in an ordered set.
android:state_pressed State value for StateListDrawable , set when the user is pressing down in a view.
android:state_selected State value for StateListDrawable , set when a view (or one of its parents) is currently selected.
android:state_single State value for StateListDrawable , set when a view or drawable is considered "single" by its host.
android:state_window_focused State value for StateListDrawable , set when a view's window has input focus.
Public constructors

Public methods
open Unit
addState(specs: IntArray!, animator: Animator!)

Associates the given animator with the provided drawable state specs so that it will be run when the View's drawable state matches the specs.

open StateListAnimator

open Unit

If there is an animation running for a recent state change, ends it.

XML attributes

android:animation

android:animation
Animation to use on each child.

May be a reference to another resource, in the form "@[+][package:]type/name" or a theme attribute in the form "?[package:]type/name".

android:state_activated

android:state_activated
State value for StateListDrawable, set when a view or its parent has been "activated" meaning the user has currently marked it as being of interest. This is an alternative representation of state_checked for when the state should be propagated down the view hierarchy.

May be a boolean value, such as "true" or "false".

android:state_active

android:state_active
State value for StateListDrawable, set when a view or drawable is considered "active" by its host. Actual usage may vary between views. Consult the host view documentation for details.

May be a boolean value, such as "true" or "false".

android:state_checkable

android:state_checkable
State identifier indicating that the object may display a check mark. See android.R.attr#state_checked for the identifier that indicates whether it is actually checked.

May be a boolean value, such as "true" or "false".

android:state_checked

android:state_checked
State identifier indicating that the object is currently checked. See android.R.attr#state_checkable for an additional identifier that can indicate if any object may ever display a check, regardless of whether state_checked is currently set.

May be a boolean value, such as "true" or "false".

android:state_enabled

android:state_enabled
State value for StateListDrawable, set when a view is enabled.

May be a boolean value, such as "true" or "false".

android:state_first

android:state_first
State value for StateListDrawable, set when a view or drawable is in the first position in an ordered set. Actual usage may vary between views. Consult the host view documentation for details.

May be a boolean value, such as "true" or "false".

android:state_focused

android:state_focused
State value for StateListDrawable, set when a view has input focus.

May be a boolean value, such as "true" or "false".

android:state_last

android:state_last
State value for StateListDrawable, set when a view or drawable is in the last position in an ordered set. Actual usage may vary between views. Consult the host view documentation for details.

May be a boolean value, such as "true" or "false".

android:state_middle

android:state_middle
State value for StateListDrawable, set when a view or drawable is in the middle position in an ordered set. Actual usage may vary between views. Consult the host view documentation for details.

May be a boolean value, such as "true" or "false".

android:state_pressed

android:state_pressed
State value for StateListDrawable, set when the user is pressing down in a view.

May be a boolean value, such as "true" or "false".

android:state_selected

android:state_selected
State value for StateListDrawable, set when a view (or one of its parents) is currently selected.

May be a boolean value, such as "true" or "false".

android:state_single

android:state_single
State value for StateListDrawable, set when a view or drawable is considered "single" by its host. Actual usage may vary between views. Consult the host view documentation for details.

May be a boolean value, such as "true" or "false".

android:state_window_focused

android:state_window_focused
State value for StateListDrawable, set when a view's window has input focus.

May be a boolean value, such as "true" or "false".

Public constructors

StateListAnimator

Added in API level 21
StateListAnimator()

Public methods

addState

Added in API level 21
open fun addState(
    specs: IntArray!,
    animator: Animator!
): Unit

Associates the given animator with the provided drawable state specs so that it will be run when the View's drawable state matches the specs.

Parameters
specs IntArray!: The drawable state specs to match against
animator Animator!: The animator to run when the specs match

clone

Added in API level 21
open fun clone(): StateListAnimator
Return
StateListAnimator a clone of this instance.
Exceptions
java.lang.CloneNotSupportedException if the object's class does not support the Cloneable interface. Subclasses that override the clone method can also throw this exception to indicate that an instance cannot be cloned.

jumpToCurrentState

Added in API level 21
open fun jumpToCurrentState(): Unit

If there is an animation running for a recent state change, ends it.

This causes the animation to assign the end value(s) to the View.