ComposeShader

Kotlin |Java

open class ComposeShader : Shader

kotlin.Any
↳	android.graphics.Shader
	↳	android.graphics.ComposeShader

A subclass of shader that returns the composition of two other shaders, combined by an android.graphics.Xfermode subclass.

Summary

Public constructors
`ComposeShader(shaderA: Shader, shaderB: Shader, blendMode: BlendMode)` Create a new compose shader, given shaders A, B, and a combining PorterDuff mode.
`ComposeShader(shaderA: Shader, shaderB: Shader, mode: PorterDuff.Mode)` Create a new compose shader, given shaders A, B, and a combining PorterDuff mode.
`ComposeShader(shaderA: Shader, shaderB: Shader, mode: Xfermode)` Create a new compose shader, given shaders A, B, and a combining mode.

Inherited functions

From class Shader

Boolean

getLocalMatrix(localM: Matrix)

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

Unit

setLocalMatrix(localM: Matrix?)

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.

Public constructors

ComposeShader

Added in API level 29

ComposeShader(
    shaderA: Shader, 
    shaderB: Shader, 
    blendMode: BlendMode)

Create a new compose shader, given shaders A, B, and a combining PorterDuff mode. When the mode is applied, it will be given the result from shader A as its "dst", and the result from shader B as its "src".

Parameters
`shaderA`	Shader: The colors from this shader are seen as the "dst" by the mode This value cannot be `null`.
`shaderB`	Shader: The colors from this shader are seen as the "src" by the mode This value cannot be `null`.
`blendMode`	BlendMode: The blend mode that combines the colors from the two shaders. This value cannot be `null`.

ComposeShader

Added in API level 1

ComposeShader(
    shaderA: Shader, 
    shaderB: Shader, 
    mode: PorterDuff.Mode)

Parameters
`shaderA`	Shader: The colors from this shader are seen as the "dst" by the mode This value cannot be `null`.
`shaderB`	Shader: The colors from this shader are seen as the "src" by the mode This value cannot be `null`.
`mode`	PorterDuff.Mode: The PorterDuff mode that combines the colors from the two shaders. This value cannot be `null`.

ComposeShader

Added in API level 1

ComposeShader(
    shaderA: Shader, 
    shaderB: Shader, 
    mode: Xfermode)

Create a new compose shader, given shaders A, B, and a combining mode. When the mode is applied, it will be given the result from shader A as its "dst", and the result from shader B as its "src".

Parameters
`shaderA`	Shader: The colors from this shader are seen as the "dst" by the mode This value cannot be `null`.
`shaderB`	Shader: The colors from this shader are seen as the "src" by the mode This value cannot be `null`.
`mode`	Xfermode: The mode that combines the colors from the two shaders. If mode is null, then SRC_OVER is assumed.