public
class
DrawableUtils
extends Object| java.lang.Object | |
| ↳ | com.facebook.drawee.drawable.DrawableUtils |
Class Overview
Helper class containing functionality commonly used by drawables.
Summary
| Public Constructors | |||||||||||
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| DrawableUtils() | |||||||||||
| Public Methods | |||||||||||
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| static Drawable |
cloneDrawable(Drawable drawable)
Clones the specified drawable.
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| static void |
copyProperties(Drawable to, Drawable from)
Copies various properties from one drawable to the other.
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| static int |
getOpacityFromColor(int color)
Gets the opacity from a color.
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| static int |
multiplyColorAlpha(int color, int alpha)
Multiplies the color with the given alpha.
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| static void |
setCallbacks(Drawable drawable, Drawable.Callback callback, TransformCallback transformCallback)
Sets callback to the drawable.
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| static void |
setDrawableProperties(Drawable drawable, DrawableProperties properties)
Sets various paint properties on the drawable
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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Public Constructors
public DrawableUtils ()
Public Methods
public static Drawable cloneDrawable (Drawable drawable)
Clones the specified drawable.
Parameters
| drawable | the drawable to clone. |
|---|
Returns
- a clone of the drawable or null if the drawable cannot be cloned.
public static void copyProperties (Drawable to, Drawable from)
Copies various properties from one drawable to the other.
Parameters
| to | drawable to copy properties to |
|---|---|
| from | drawable to copy properties from |
public static int getOpacityFromColor (int color)
Gets the opacity from a color. Inspired by Android ColorDrawable.
Returns
- opacity expressed by one of PixelFormat constants
public static int multiplyColorAlpha (int color, int alpha)
Multiplies the color with the given alpha.
Parameters
| color | color to be multiplied |
|---|---|
| alpha | value between 0 and 255 |
Returns
- multiplied color
public static void setCallbacks (Drawable drawable, Drawable.Callback callback, TransformCallback transformCallback)
Sets callback to the drawable.
Parameters
| drawable | drawable to set callbacks to |
|---|---|
| callback | standard Android Drawable.Callback |
| transformCallback | TransformCallback used by TransformAwareDrawables |
public static void setDrawableProperties (Drawable drawable, DrawableProperties properties)
Sets various paint properties on the drawable
Parameters
| drawable | Drawable on which to set the properties |
|---|---|
| properties | wrapper around mValue values to set on the drawable |