Shader

Kotlin |Java

open class Shader

kotlin.Any
↳	android.graphics.Shader

Known Direct Subclasses

BitmapShader, ComposeShader, LinearGradient, RadialGradient, RuntimeShader, SweepGradient

BitmapShader	Shader used to draw a bitmap as a texture.
ComposeShader	A subclass of shader that returns the composition of two other shaders, combined by an `android.graphics.Xfermode` subclass.
LinearGradient
RadialGradient
RuntimeShader	A `RuntimeShader` calculates a per-pixel color based on the output of a user defined Android Graphics Shading Language (AGSL) function.
SweepGradient

Shader is the base class for objects that return horizontal spans of colors during drawing. A subclass of Shader is installed in a Paint calling paint.setShader(shader). After that any object (other than a bitmap) that is drawn with that paint will get its color(s) from the shader.

Summary

Nested classes
	`TileMode`

Public constructors
`Shader()`

Public methods
open Boolean	`getLocalMatrix(localM: Matrix)` Return true if the shader has a non-identity local matrix.
open Unit	`setLocalMatrix(localM: Matrix?)` Set the shader's local matrix.

Public constructors

Shader

Added in API level 1

Shader()

Deprecated: Use subclass constructors directly instead.

Public methods

getLocalMatrix

Added in API level 1

open fun getLocalMatrix(localM: Matrix): Boolean

Return true if the shader has a non-identity local matrix.

Parameters
`localM`	Matrix: Set to the local matrix of the shader, if the shader's matrix is non-null.

Return
`Boolean`	true if the shader has a non-identity local matrix

setLocalMatrix

Added in API level 1

open fun setLocalMatrix(localM: Matrix?): Unit

Set the shader's local matrix. Passing null will reset the shader's matrix to identity. If the matrix has scale value as 0, the drawing result is undefined.

Parameters
`localM`	Matrix?: The shader's new local matrix, or null to specify identity