AdaptiveIconDrawable
open class AdaptiveIconDrawable : Drawable, Drawable.Callback
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.
Such motion effect is achieved by internally setting the bounds of the foreground and background layer as following:
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 |
Constructor used to dynamically create this drawable.
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Constructor used to dynamically create this drawable.
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Public methods |
open Unit |
Applies the specified theme to this Drawable and its children.
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open Boolean |
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open Unit |
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open Int |
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open Drawable! |
Returns the foreground drawable managed by this class.
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open Int |
Return a mask of the configuration parameters for which this drawable may change, requiring that it be re-created.
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open Drawable.ConstantState? |
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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.
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open Drawable! |
Returns the foreground drawable managed by this class.
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open Unit |
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open Path! |
When called before the bound is set, the returned path is identical to R.
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open Int |
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open Int |
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open Drawable? |
Returns the monochrome version of this drawable.
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open Int |
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open Unit |
Called to get the drawable to populate the Outline that defines its drawing area.
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open Region? |
Returns a Region representing the part of the Drawable that is completely transparent.
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open Boolean |
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open Unit |
Inflate this Drawable from an XML resource optionally styled by a theme.
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open Unit |
Called when the drawable needs to be redrawn.
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open Unit |
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open Boolean |
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open Boolean |
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open Unit |
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open Drawable |
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open Unit |
A Drawable can call this to schedule the next frame of its animation.
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open Unit |
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open Unit |
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open Unit |
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open Unit |
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open Unit |
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open Unit |
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open Unit |
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open Unit |
Specifies a tint blending mode for this drawable.
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open Unit |
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open Boolean |
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open Unit |
A Drawable can call this to unschedule an action previously scheduled with scheduleDrawable .
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Inherited functions |
From class Drawable
Unit |
clearColorFilter()
Removes the color filter for this drawable.
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Unit |
copyBounds(bounds: Rect)
Return a copy of the drawable's bounds in the specified Rect (allocated by the caller). The bounds specify where this will draw when its draw() method is called.
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Rect |
copyBounds()
Return a copy of the drawable's bounds in a new Rect. This returns the same values as getBounds(), but the returned object is guaranteed to not be changed later by the drawable (i.e. it retains no reference to this rect). If the caller already has a Rect allocated, call copyBounds(rect).
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Drawable? |
createFromPath(pathName: String!)
Create a drawable from file path name.
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Drawable? |
createFromResourceStream(res: Resources?, value: TypedValue?, is: InputStream?, srcName: String?)
Create a drawable from an inputstream, using the given resources and value to determine density information.
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Drawable? |
createFromResourceStream(res: Resources?, value: TypedValue?, is: InputStream?, srcName: String?, opts: BitmapFactory.Options?)
Create a drawable from an inputstream, using the given resources and value to determine density information.
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Drawable? |
createFromStream(is: InputStream?, srcName: String?)
Create a drawable from an inputstream
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Drawable |
createFromXml(r: Resources, parser: XmlPullParser)
Create a drawable from an XML document. For more information on how to create resources in XML, see Drawable Resources.
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Drawable |
createFromXml(r: Resources, parser: XmlPullParser, theme: Resources.Theme?)
Create a drawable from an XML document using an optional Theme . For more information on how to create resources in XML, see Drawable Resources.
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Drawable |
createFromXmlInner(r: Resources, parser: XmlPullParser, attrs: AttributeSet)
Create from inside an XML document. Called on a parser positioned at a tag in an XML document, tries to create a Drawable from that tag. Returns null if the tag is not a valid drawable.
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Drawable |
createFromXmlInner(r: Resources, parser: XmlPullParser, attrs: AttributeSet, theme: Resources.Theme?)
Create a drawable from inside an XML document using an optional Theme . Called on a parser positioned at a tag in an XML document, tries to create a Drawable from that tag. Returns null if the tag is not a valid drawable.
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Rect |
getBounds()
Return the drawable's bounds Rect. Note: for efficiency, the returned object may be the same object stored in the drawable (though this is not guaranteed), so if a persistent copy of the bounds is needed, call copyBounds(rect) instead. You should also not change the object returned by this method as it may be the same object stored in the drawable.
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Drawable.Callback? |
getCallback()
Return the current Callback implementation attached to this Drawable.
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ColorFilter? |
getColorFilter()
Returns the current color filter, or null if none set.
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Drawable |
getCurrent()
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Rect |
getDirtyBounds()
Return the drawable's dirty bounds Rect. Note: for efficiency, the returned object may be the same object stored in the drawable (though this is not guaranteed).
By default, this returns the full drawable bounds. Custom drawables may override this method to perform more precise invalidation.
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Int |
getLayoutDirection()
Returns the resolved layout direction for this Drawable.
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Int |
getLevel()
Retrieve the current level.
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Int |
getMinimumHeight()
Returns the minimum height suggested by this Drawable. If a View uses this Drawable as a background, it is suggested that the View use at least this value for its height. (There will be some scenarios where this will not be possible.) This value should INCLUDE any padding.
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Int |
getMinimumWidth()
Returns the minimum width suggested by this Drawable. If a View uses this Drawable as a background, it is suggested that the View use at least this value for its width. (There will be some scenarios where this will not be possible.) This value should INCLUDE any padding.
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Insets |
getOpticalInsets()
Return in insets the layout insets suggested by this Drawable for use with alignment operations during layout.
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Boolean |
getPadding(padding: Rect)
Return in padding the insets suggested by this Drawable for placing content inside the drawable's bounds. Positive values move toward the center of the Drawable (set Rect.inset).
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IntArray |
getState()
Describes the current state, as a union of primitive states, such as android.R.attr#state_focused , android.R.attr#state_selected , etc. Some drawables may modify their imagery based on the selected state.
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Unit |
inflate(r: Resources, parser: XmlPullParser, attrs: AttributeSet)
Inflate this Drawable from an XML resource. Does not apply a theme.
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Boolean |
isFilterBitmap()
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Boolean |
isVisible()
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Boolean |
onLayoutDirectionChanged(layoutDirection: Int)
Called when the drawable's resolved layout direction changes.
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Int |
resolveOpacity(op1: Int, op2: Int)
Return the appropriate opacity value for two source opacities. If either is UNKNOWN, that is returned; else, if either is TRANSLUCENT, that is returned; else, if either is TRANSPARENT, that is returned; else, OPAQUE is returned.
This is to help in implementing getOpacity .
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Unit |
scheduleSelf(what: Runnable, when: Long)
Use the current Callback implementation to have this Drawable scheduled. Does nothing if there is no Callback attached to the Drawable.
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Unit |
setBounds(left: Int, top: Int, right: Int, bottom: Int)
Specify a bounding rectangle for the Drawable. This is where the drawable will draw when its draw() method is called.
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Unit |
setBounds(bounds: Rect)
Specify a bounding rectangle for the Drawable. This is where the drawable will draw when its draw() method is called.
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Unit |
setCallback(cb: Drawable.Callback?)
Bind a Callback object to this Drawable. Required for clients that want to support animated drawables.
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Unit |
setChangingConfigurations(configs: Int)
Set a mask of the configuration parameters for which this drawable may change, requiring that it be re-created.
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Unit |
setColorFilter(color: Int, mode: PorterDuff.Mode)
Specify a color and Porter-Duff mode to be the color filter for this drawable.
Convenience for setColorFilter(android.graphics.ColorFilter) which constructs a PorterDuffColorFilter .
Note: Setting a color filter disables tint .
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Unit |
setFilterBitmap(filter: Boolean)
Set to true to have the drawable filter its bitmaps with bilinear sampling when they are scaled or rotated.
This can improve appearance when bitmaps are rotated. If the drawable does not use bitmaps, this call is ignored.
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Boolean |
setLayoutDirection(layoutDirection: Int)
Set the layout direction for this drawable. Should be a resolved layout direction, as the Drawable has no capacity to do the resolution on its own.
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Boolean |
setLevel(level: Int)
Specify the level for the drawable. This allows a drawable to vary its imagery based on a continuous controller, for example to show progress or volume level.
If the new level you are supplying causes the appearance of the Drawable to change, then it is responsible for calling invalidateSelf in order to have itself redrawn, and true will be returned from this function.
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Boolean |
setState(stateSet: IntArray)
Specify a set of states for the drawable. These are use-case specific, so see the relevant documentation. As an example, the background for widgets like Button understand the following states: [android.R.attr#state_focused , android.R.attr#state_pressed ].
If the new state you are supplying causes the appearance of the Drawable to change, then it is responsible for calling invalidateSelf in order to have itself redrawn, and true will be returned from this function.
Note: The Drawable holds a reference on to stateSet until a new state array is given to it, so you must not modify this array during that time.
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Unit |
setTint(tintColor: Int)
Specifies tint color for this drawable.
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) .
To clear the tint, pass null to setTintList(android.content.res.ColorStateList) .
Note: Setting a color filter via setColorFilter(android.graphics.ColorFilter) or setColorFilter(int,android.graphics.PorterDuff.Mode) overrides tint.
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Unit |
setTintMode(tintMode: PorterDuff.Mode?)
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 PorterDuff.Mode#SRC_IN .
Note: Setting a color filter via setColorFilter(android.graphics.ColorFilter) or setColorFilter(int,android.graphics.PorterDuff.Mode) overrides tint.
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Unit |
unscheduleSelf(what: Runnable)
Use the current Callback implementation to have this Drawable unscheduled. Does nothing if there is no Callback attached to the Drawable.
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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.
canApplyTheme
open fun canApplyTheme(): Boolean
draw
open fun draw(canvas: Canvas): Unit
Parameters |
canvas |
Canvas: The canvas to draw into This value cannot be null . |
getAlpha
open fun getAlpha(): Int
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.
Return |
Int |
Value is either 0 or a combination of android.content.pm.ActivityInfo#CONFIG_MCC , android.content.pm.ActivityInfo#CONFIG_MNC , android.content.pm.ActivityInfo#CONFIG_LOCALE , android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN , android.content.pm.ActivityInfo#CONFIG_KEYBOARD , android.content.pm.ActivityInfo#CONFIG_KEYBOARD_HIDDEN , android.content.pm.ActivityInfo#CONFIG_NAVIGATION , android.content.pm.ActivityInfo#CONFIG_ORIENTATION , android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT , android.content.pm.ActivityInfo#CONFIG_UI_MODE , android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE , android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE , android.content.pm.ActivityInfo#CONFIG_DENSITY , android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION , android.content.pm.ActivityInfo#CONFIG_COLOR_MODE , android.content.pm.ActivityInfo#CONFIG_FONT_SCALE , and android.content.pm.ActivityInfo#CONFIG_GRAMMATICAL_GENDER |
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.
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
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
Return |
Int |
the intrinsic height, or -1 if no intrinsic height |
getIntrinsicWidth
open fun getIntrinsicWidth(): Int
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
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
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.
Exceptions |
org.xmlpull.v1.XmlPullParserException |
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java.io.IOException |
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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
isAutoMirrored
open fun isAutoMirrored(): Boolean
Return |
Boolean |
boolean Returns true if this Drawable will be automatically mirrored. |
isStateful
open fun isStateful(): Boolean
Return |
Boolean |
True if this drawable changes its appearance based on state, false otherwise. |
jumpToCurrentState
open fun jumpToCurrentState(): Unit
mutate
open fun mutate(): Drawable
Return |
Drawable |
This drawable. This value cannot be null . |
setAlpha
open fun setAlpha(alpha: Int): Unit
Parameters |
alpha |
Int: Value is between 0 and 255 inclusive |
setAutoMirrored
open fun setAutoMirrored(mirrored: Boolean): Unit
Parameters |
mirrored |
Boolean: Set to true if the Drawable should be mirrored, false if not. |
setColorFilter
open fun setColorFilter(colorFilter: ColorFilter?): Unit
Parameters |
colorFilter |
ColorFilter?: The color filter to apply, or null to remove the existing color filter |
setHotspot
open fun setHotspot(
x: Float,
y: Float
): Unit
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
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 |
setOpacity
open fun setOpacity(opacity: Int): Unit
setTintList
open fun setTintList(tint: ColorStateList?): Unit
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
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
onBoundsChange
protected open fun onBoundsChange(bounds: Rect): Unit
Parameters |
bounds |
Rect: This value cannot be null . |
onLevelChange
protected open fun onLevelChange(level: Int): Boolean
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
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. |