Added in API level 21

AnimatedStateListDrawable

open class AnimatedStateListDrawable : StateListDrawable
kotlin.Any
   ↳ android.graphics.drawable.Drawable
   ↳ android.graphics.drawable.DrawableContainer
   ↳ android.graphics.drawable.StateListDrawable
   ↳ android.graphics.drawable.AnimatedStateListDrawable

Drawable containing a set of Drawable keyframes where the currently displayed keyframe is chosen based on the current state set. Animations between keyframes may optionally be defined using transition elements.

This drawable can be defined in an XML file with the <animated-selector> element. Each keyframe Drawable is defined in a nested <item> element. Transitions are defined in a nested <transition> element.

Summary

XML attributes
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.
Inherited XML attributes
Public constructors

Public methods
open Unit
addState(stateSet: IntArray, drawable: Drawable, id: Int)

Add a new drawable to the set of keyframes.

open Unit
addTransition(fromId: Int, toId: Int, transition: T, reversible: Boolean)

Adds a new transition between keyframes.

open Unit

Applies the specified theme to this Drawable and its children.

open Unit
inflate(r: Resources, parser: XmlPullParser, attrs: AttributeSet, theme: Resources.Theme?)

Inflate this Drawable from an XML resource optionally styled by a theme.

open Boolean

open Unit

open Drawable

open Boolean
setVisible(visible: Boolean, restart: Boolean)

Protected methods
open Boolean

open Unit

Inherited functions

XML attributes

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

AnimatedStateListDrawable

Added in API level 21
AnimatedStateListDrawable()

Public methods

addState

Added in API level 21
open fun addState(
    stateSet: IntArray,
    drawable: Drawable,
    id: Int
): Unit

Add a new drawable to the set of keyframes.

Parameters
stateSet IntArray: An array of resource IDs to associate with the keyframe This value cannot be null.
drawable Drawable: The drawable to show when in the specified state, may not be null
id Int: The unique identifier for the keyframe

addTransition

Added in API level 21
open fun <T> addTransition(
    fromId: Int,
    toId: Int,
    transition: T,
    reversible: Boolean
): Unit where T : Drawable!, T : Animatable!

Adds a new transition between keyframes.

Parameters
fromId Int: Unique identifier of the starting keyframe
toId Int: Unique identifier of the ending keyframe
transition T: An Animatable drawable to use as a transition, may not be null
reversible Boolean: Whether the transition can be reversed

applyTheme

Added in API level 21
open fun applyTheme(theme: Resources.Theme!): Unit

Applies the specified theme to this Drawable and its children.

Parameters
t the theme to apply This value cannot be null.
theme Resources.Theme!: This value may be null.

inflate

Added in API level 21
open fun inflate(
    r: Resources,
    parser: XmlPullParser,
    attrs: AttributeSet,
    theme: Resources.Theme?
): Unit

Inflate this Drawable from an XML resource optionally styled by a theme. This can't be called more than once for each Drawable. Note that framework may have called this once to create the Drawable instance from XML resource.

Parameters
r Resources: This value cannot be null.
parser XmlPullParser: This value cannot be null.
attrs AttributeSet: This value cannot be null.
theme Resources.Theme?: This value may be null.
Exceptions
org.xmlpull.v1.XmlPullParserException
java.io.IOException

isStateful

Added in API level 21
open fun isStateful(): Boolean
Return
Boolean True if this drawable changes its appearance based on state, false otherwise.

jumpToCurrentState

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

mutate

Added in API level 21
open fun mutate(): Drawable
Return
Drawable This drawable. This value cannot be null.

setVisible

Added in API level 21
open fun setVisible(
    visible: Boolean,
    restart: Boolean
): Boolean
Parameters
visible Boolean: Set to true if visible, false if not.
restart Boolean: You can supply true here to force the drawable to behave as if it has just become visible, even if it had last been set visible. Used for example to force animations to restart.
Return
Boolean boolean Returns true if the new visibility is different than its previous state.

Protected methods

onStateChange

Added in API level 21
protected open fun onStateChange(stateSet: IntArray): Boolean
Parameters
state This value cannot be null.
Return
Boolean Returns true if the state change has caused the appearance of the Drawable to change (that is, it needs to be drawn), else false if it looks the same and there is no need to redraw it since its last state.

setConstantState

Added in API level 21
protected open fun setConstantState(state: DrawableContainer.DrawableContainerState): Unit
Parameters
state DrawableContainer.DrawableContainerState: This value cannot be null.