AdaptiveIconDrawable
open class AdaptiveIconDrawable : Drawable, Drawable.Callback
| kotlin.Any | ||
| ↳ | android.graphics.drawable.Drawable | |
| ↳ | android.graphics.drawable.AdaptiveIconDrawable | |
This class can also be created via XML inflation using <adaptive-icon> tag in addition to dynamic creation.
This drawable supports two drawable layers: foreground and background. The layers are clipped when rendering using the mask defined in the device configuration.
- Both foreground and background layers should be sized at 108 x 108 dp.
- The inner 72 x 72 dp of the icon appears within the masked viewport.
- The outer 18 dp on each of the 4 sides of the layers is reserved for use by the system UI surfaces to create interesting visual effects, such as parallax or pulsing.
Rect(getBounds().left - getBounds().getWidth() * #getExtraInsetFraction(), getBounds().top - getBounds().getHeight() * #getExtraInsetFraction(), getBounds().right + getBounds().getWidth() * #getExtraInsetFraction(), getBounds().bottom + getBounds().getHeight() * #getExtraInsetFraction())
An alternate drawable can be specified using <monochrome> tag which can be drawn in place of the two (background and foreground) layers. This drawable is tinted according to the device or surface theme.
Summary
| Public constructors | |
|---|---|
AdaptiveIconDrawable(backgroundDrawable: Drawable!, foregroundDrawable: Drawable!)Constructor used to dynamically create this drawable. |
|
AdaptiveIconDrawable(backgroundDrawable: Drawable?, foregroundDrawable: Drawable?, monochromeDrawable: Drawable?)Constructor used to dynamically create this drawable. |
|
| Public methods | |
|---|---|
| open Unit |
Applies the specified theme to this Drawable and its children. |
| open Boolean | |
| open Unit |
Draw in its bounds (set via setBounds) respecting optional effects such as alpha (set via setAlpha) and color filter (set via setColorFilter). |
| open Int |
getAlpha()Gets the current alpha value for the drawable. |
| open Drawable! |
Returns the foreground drawable managed by this class. |
| open Int |
Return a mask of the configuration parameters for which this drawable may change, requiring that it be re-created. |
| open Drawable.ConstantState? |
Return a |
| open static Float |
All four sides of the layers are padded with extra inset so as to provide extra content to reveal within the clip path when performing affine transformations on the layers. |
| open Drawable! |
Returns the foreground drawable managed by this class. |
| open Unit |
getHotspotBounds(outRect: Rect)Populates |
| open Path! |
When called before the bound is set, the returned path is identical to R. |
| open Int |
Returns the drawable's intrinsic height. |
| open Int |
Returns the drawable's intrinsic width. |
| open Drawable? |
Returns the monochrome version of this drawable. |
| open Int |
Return the opacity/transparency of this Drawable. |
| open Unit |
getOutline(outline: Outline)Called to get the drawable to populate the Outline that defines its drawing area. |
| open Region? |
Returns a Region representing the part of the Drawable that is completely transparent. |
| open Boolean |
Indicates whether this drawable has at least one state spec explicitly specifying |
| 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 Unit |
invalidateDrawable(who: Drawable)Called when the drawable needs to be redrawn. |
| open Unit |
Use the current |
| open Boolean |
Tells if this Drawable will be automatically mirrored when its layout direction is RTL right-to-left. |
| open Boolean | |
| open Boolean |
Indicates whether this drawable will change its appearance based on state. |
| open Unit |
If this Drawable does transition animations between states, ask that it immediately jump to the current state and skip any active animations. |
| open Drawable |
mutate()Make this drawable mutable. |
| open Unit |
scheduleDrawable(who: Drawable, what: Runnable, when: Long)A Drawable can call this to schedule the next frame of its animation. |
| open Unit |
Specify an alpha value for the drawable. |
| open Unit |
setAutoMirrored(mirrored: Boolean)Set whether this Drawable is automatically mirrored when its layout direction is RTL (right-to left). |
| open Unit |
setColorFilter(colorFilter: ColorFilter?)Specify an optional color filter for the drawable. |
| open Unit |
Set to true to have the drawable dither its colors when drawn to a device with fewer than 8-bits per color component. |
| open Unit |
setHotspot(x: Float, y: Float)Specifies the hotspot's location within the drawable. |
| open Unit |
setHotspotBounds(left: Int, top: Int, right: Int, bottom: Int)Sets the bounds to which the hotspot is constrained, if they should be different from the drawable bounds. |
| open Unit |
setOpacity(opacity: Int) |
| open Unit |
setTintBlendMode(blendMode: BlendMode!)Specifies a tint blending mode for this drawable. |
| open Unit |
setTintList(tint: ColorStateList?)Specifies tint color for this drawable as a color state list. |
| open Boolean |
setVisible(visible: Boolean, restart: Boolean)Set whether this Drawable is visible. |
| open Unit |
unscheduleDrawable(who: Drawable, what: Runnable)A Drawable can call this to unschedule an action previously scheduled with |
| Protected methods | |
|---|---|
| open Unit |
onBoundsChange(bounds: Rect)Override this in your subclass to change appearance if you vary based on the bounds. |
| open Boolean |
onLevelChange(level: Int)Override this in your subclass to change appearance if you vary based on level. |
| open Boolean |
onStateChange(state: IntArray)Override this in your subclass to change appearance if you recognize the specified state. |
| Inherited functions | |
|---|---|
Public constructors
AdaptiveIconDrawable
AdaptiveIconDrawable(
backgroundDrawable: Drawable!,
foregroundDrawable: Drawable!)
Constructor used to dynamically create this drawable.
| Parameters | |
|---|---|
backgroundDrawable |
Drawable!: drawable that should be rendered in the background |
foregroundDrawable |
Drawable!: drawable that should be rendered in the foreground |
AdaptiveIconDrawable
AdaptiveIconDrawable(
backgroundDrawable: Drawable?,
foregroundDrawable: Drawable?,
monochromeDrawable: Drawable?)
Constructor used to dynamically create this drawable.
| Parameters | |
|---|---|
backgroundDrawable |
Drawable?: drawable that should be rendered in the background. This value may be null. |
foregroundDrawable |
Drawable?: drawable that should be rendered in the foreground. This value may be null. |
monochromeDrawable |
Drawable?: an alternate drawable which can be tinted per system theme color. This value may be null. |
Public methods
applyTheme
open fun applyTheme(t: Resources.Theme): Unit
Applies the specified theme to this Drawable and its children.
| Parameters | |
|---|---|
t |
Resources.Theme: This value cannot be null. |
draw
open fun draw(canvas: Canvas): Unit
Draw in its bounds (set via setBounds) respecting optional effects such as alpha (set via setAlpha) and color filter (set via setColorFilter).
| Parameters | |
|---|---|
canvas |
Canvas: The canvas to draw into. This value cannot be null. |
getAlpha
open fun getAlpha(): Int
Gets the current alpha value for the drawable. 0 means fully transparent, 255 means fully opaque. This method is implemented by Drawable subclasses and the value returned is specific to how that class treats alpha. The default return value is 255 if the class does not override this method to return a value specific to its use of alpha.
| Return | |
|---|---|
Int |
Value is between 0 and 255 inclusive |
getBackground
open fun getBackground(): Drawable!
Returns the foreground drawable managed by this class. The bound of this drawable is extended by getExtraInsetFraction() * getBounds().width on left/right sides and by getExtraInsetFraction() * getBounds().height on top/bottom sides.
| Return | |
|---|---|
Drawable! |
the background drawable managed by this drawable |
getChangingConfigurations
open fun getChangingConfigurations(): Int
Return a mask of the configuration parameters for which this drawable may change, requiring that it be re-created. The default implementation returns whatever was provided through setChangingConfigurations(int) or 0 by default. Subclasses may extend this to or in the changing configurations of any other drawables they hold.
getConstantState
open fun getConstantState(): Drawable.ConstantState?
Return a ConstantState instance that holds the shared state of this Drawable.
| Return | |
|---|---|
Drawable.ConstantState? |
The ConstantState associated to that Drawable. This value may be null. |
getExtraInsetFraction
open static fun getExtraInsetFraction(): Float
All four sides of the layers are padded with extra inset so as to provide extra content to reveal within the clip path when performing affine transformations on the layers.
See Also
getForeground
open fun getForeground(): Drawable!
Returns the foreground drawable managed by this class. The bound of this drawable is extended by getExtraInsetFraction() * getBounds().width on left/right sides and by getExtraInsetFraction() * getBounds().height on top/bottom sides.
| Return | |
|---|---|
Drawable! |
the foreground drawable managed by this drawable |
getHotspotBounds
open fun getHotspotBounds(outRect: Rect): Unit
Populates outRect with the hotspot bounds.
| Parameters | |
|---|---|
outRect |
Rect: the rect to populate with the hotspot bounds. This value cannot be null. |
getIconMask
open fun getIconMask(): Path!
When called before the bound is set, the returned path is identical to R.string.config_icon_mask. After the bound is set, the returned path's computed bound is same as the #getBounds().
| Return | |
|---|---|
Path! |
the mask path object used to clip the drawable |
getIntrinsicHeight
open fun getIntrinsicHeight(): Int
Returns the drawable's intrinsic height.
Intrinsic height is the height at which the drawable would like to be laid out, including any inherent padding. If the drawable has no intrinsic height, such as a solid color, this method returns -1.
| Return | |
|---|---|
Int |
the intrinsic height, or -1 if no intrinsic height |
getIntrinsicWidth
open fun getIntrinsicWidth(): Int
Returns the drawable's intrinsic width.
Intrinsic width is the width at which the drawable would like to be laid out, including any inherent padding. If the drawable has no intrinsic width, such as a solid color, this method returns -1.
| Return | |
|---|---|
Int |
the intrinsic width, or -1 if no intrinsic width |
getMonochrome
open fun getMonochrome(): Drawable?
Returns the monochrome version of this drawable. Callers can use a tinted version of this drawable instead of the original drawable on surfaces stressing user theming.
| Return | |
|---|---|
Drawable? |
the monochrome drawable. This value may be null. |
getOpacity
open fun getOpacity(): Int
Return the opacity/transparency of this Drawable. The returned value is one of the abstract format constants in android.graphics.PixelFormat: android.graphics.PixelFormat#UNKNOWN, android.graphics.PixelFormat#TRANSLUCENT, android.graphics.PixelFormat#TRANSPARENT, or android.graphics.PixelFormat#OPAQUE.
An OPAQUE drawable is one that draws all all content within its bounds, completely covering anything behind the drawable. A TRANSPARENT drawable is one that draws nothing within its bounds, allowing everything behind it to show through. A TRANSLUCENT drawable is a drawable in any other state, where the drawable will draw some, but not all, of the content within its bounds and at least some content behind the drawable will be visible. If the visibility of the drawable's contents cannot be determined, the safest/best return value is TRANSLUCENT.
Generally a Drawable should be as conservative as possible with the value it returns. For example, if it contains multiple child drawables and only shows one of them at a time, if only one of the children is TRANSLUCENT and the others are OPAQUE then TRANSLUCENT should be returned. You can use the method resolveOpacity to perform a standard reduction of two opacities to the appropriate single output.
Note that the returned value does not necessarily take into account a custom alpha or color filter that has been applied by the client through the setAlpha or #setColorFilter methods. Some subclasses, such as BitmapDrawable, ColorDrawable, and GradientDrawable, do account for the value of setAlpha, but the general behavior is dependent upon the implementation of the subclass.
| Return | |
|---|---|
Int |
int The opacity class of the Drawable. Value is one of the following: |
getOutline
open fun getOutline(outline: Outline): Unit
Called to get the drawable to populate the Outline that defines its drawing area.
This method is called by the default android.view.ViewOutlineProvider to define the outline of the View.
The default behavior defines the outline to be the bounding rectangle of 0 alpha. Subclasses that wish to convey a different shape or alpha value must override this method.
| Parameters | |
|---|---|
outline |
Outline: This value cannot be null. |
getTransparentRegion
open fun getTransparentRegion(): Region?
Returns a Region representing the part of the Drawable that is completely transparent. This can be used to perform drawing operations, identifying which parts of the target will not change when rendering the Drawable. The default implementation returns null, indicating no transparent region; subclasses can optionally override this to return an actual Region if they want to supply this optimization information, but it is not required that they do so.
| Return | |
|---|---|
Region? |
This value may be null. |
hasFocusStateSpecified
open fun hasFocusStateSpecified(): Boolean
Indicates whether this drawable has at least one state spec explicitly specifying android.R.attr#state_focused.
Note: A View uses a Drawable instance as its background and it changes its appearance based on a state. On keyboard devices, it should specify its android.R.attr#state_focused to make sure the user knows which view is holding the focus.
| Return | |
|---|---|
Boolean |
true if android.R.attr#state_focused is specified for this drawable. |
inflate
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 | |
|---|---|
java.io.IOException |
|
org.xmlpull.v1.XmlPullParserException |
|
invalidateDrawable
open fun invalidateDrawable(who: Drawable): Unit
Called when the drawable needs to be redrawn. A view at this point should invalidate itself (or at least the part of itself where the drawable appears).
| Parameters | |
|---|---|
who |
Drawable: This value cannot be null. |
invalidateSelf
open fun invalidateSelf(): Unit
Use the current Callback implementation to have this Drawable redrawn. Does nothing if there is no Callback attached to the Drawable.
isAutoMirrored
open fun isAutoMirrored(): Boolean
Tells if this Drawable will be automatically mirrored when its layout direction is RTL right-to-left. See android.util.LayoutDirection.
| Return | |
|---|---|
Boolean |
boolean Returns true if this Drawable will be automatically mirrored. |
isProjected
open fun isProjected(): Boolean
isStateful
open fun isStateful(): Boolean
Indicates whether this drawable will change its appearance based on state. Clients can use this to determine whether it is necessary to calculate their state and call setState.
| Return | |
|---|---|
Boolean |
True if this drawable changes its appearance based on state, false otherwise. |
jumpToCurrentState
open fun jumpToCurrentState(): Unit
If this Drawable does transition animations between states, ask that it immediately jump to the current state and skip any active animations.
mutate
open fun mutate(): Drawable
Make this drawable mutable. This operation cannot be reversed. A mutable drawable is guaranteed to not share its state with any other drawable. This is especially useful when you need to modify properties of drawables loaded from resources. By default, all drawables instances loaded from the same resource share a common state; if you modify the state of one instance, all the other instances will receive the same modification. Calling this method on a mutable Drawable will have no effect.
| Return | |
|---|---|
Drawable |
This drawable. This value cannot be null. |
scheduleDrawable
open fun scheduleDrawable(
who: Drawable,
what: Runnable,
when: Long
): Unit
A Drawable can call this to schedule the next frame of its animation. An implementation can generally simply call android.os.Handler#postAtTime(Runnable, Object, long) with the parameters (what, who, when) to perform the scheduling.
| Parameters | |
|---|---|
who |
Drawable: This value cannot be null. |
what |
Runnable: This value cannot be null. |
when |
Long: The time (in milliseconds) to run. The timebase is android.os.SystemClock#uptimeMillis |
setAlpha
open fun setAlpha(alpha: Int): Unit
Specify an alpha value for the drawable. 0 means fully transparent, and 255 means fully opaque.
| Parameters | |
|---|---|
alpha |
Int: Value is between 0 and 255 inclusive |
setAutoMirrored
open fun setAutoMirrored(mirrored: Boolean): Unit
Set whether this Drawable is automatically mirrored when its layout direction is RTL (right-to left). See android.util.LayoutDirection.
| Parameters | |
|---|---|
mirrored |
Boolean: Set to true if the Drawable should be mirrored, false if not. |
setColorFilter
open fun setColorFilter(colorFilter: ColorFilter?): Unit
Specify an optional color filter for the drawable.
If a Drawable has a ColorFilter, each output pixel of the Drawable's drawing contents will be modified by the color filter before it is blended onto the render target of a Canvas.
Pass null to remove any existing color filter.
Note: Setting a non-null color filter disables tint.
| Parameters | |
|---|---|
colorFilter |
ColorFilter?: The color filter to apply, or null to remove the existing color filter |
setDither
open fun setDither(dither: Boolean): Unit
Set to true to have the drawable dither its colors when drawn to a device with fewer than 8-bits per color component.
setHotspot
open fun setHotspot(
x: Float,
y: Float
): Unit
Specifies the hotspot's location within the drawable.
| Parameters | |
|---|---|
x |
Float: The X coordinate of the center of the hotspot |
y |
Float: The Y coordinate of the center of the hotspot |
setHotspotBounds
open fun setHotspotBounds(
left: Int,
top: Int,
right: Int,
bottom: Int
): Unit
Sets the bounds to which the hotspot is constrained, if they should be different from the drawable bounds.
| Parameters | |
|---|---|
left |
Int: position in pixels of the left bound |
top |
Int: position in pixels of the top bound |
right |
Int: position in pixels of the right bound |
bottom |
Int: position in pixels of the bottom bound |
setTintBlendMode
open fun setTintBlendMode(blendMode: BlendMode!): Unit
Specifies a tint blending mode for this drawable.
Defines how this drawable's tint color should be blended into the drawable before it is drawn to screen. Default tint mode is BlendMode.SRC_IN.
Note: Setting a color filter via setColorFilter(android.graphics.ColorFilter)
| Parameters | |
|---|---|
blendMode |
BlendMode!: This value cannot be null. |
setTintList
open fun setTintList(tint: ColorStateList?): Unit
Specifies tint color for this drawable as a color state list.
A Drawable's drawing content will be blended together with its tint before it is drawn to the screen. This functions similarly to setColorFilter(int,android.graphics.PorterDuff.Mode).
Note: Setting a color filter via setColorFilter(android.graphics.ColorFilter) or setColorFilter(int,android.graphics.PorterDuff.Mode) overrides tint.
| Parameters | |
|---|---|
tint |
ColorStateList?: Color state list to use for tinting this drawable, or null to clear the tint |
setVisible
open fun setVisible(
visible: Boolean,
restart: Boolean
): Boolean
Set whether this Drawable is visible. This generally does not impact the Drawable's behavior, but is a hint that can be used by some Drawables, for example, to decide whether run animations.
| 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. |
unscheduleDrawable
open fun unscheduleDrawable(
who: Drawable,
what: Runnable
): Unit
A Drawable can call this to unschedule an action previously scheduled with scheduleDrawable. An implementation can generally simply call android.os.Handler#removeCallbacks(Runnable, Object) with the parameters (what, who) to unschedule the drawable.
| Parameters | |
|---|---|
who |
Drawable: This value cannot be null. |
what |
Runnable: This value cannot be null. |
Protected methods
onBoundsChange
protected open fun onBoundsChange(bounds: Rect): Unit
Override this in your subclass to change appearance if you vary based on the bounds.
| Parameters | |
|---|---|
bounds |
Rect: This value cannot be null. |
onLevelChange
protected open fun onLevelChange(level: Int): Boolean
Override this in your subclass to change appearance if you vary based on level.
| Return | |
|---|---|
Boolean |
Returns true if the level 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 level. |
onStateChange
protected open fun onStateChange(state: IntArray): Boolean
Override this in your subclass to change appearance if you recognize the specified state.
| Parameters | |
|---|---|
state |
IntArray: 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. |