Summary: Constants | Methods | Inherited Methods

MaterialColors

public class MaterialColors
extends Object

java.lang.Object
↳	com.google.android.material.color.MaterialColors

A utility class for common color variants used in Material themes.

Summary

Constants
`float`	`ALPHA_DISABLED`
`float`	`ALPHA_DISABLED_LOW`
`float`	`ALPHA_FULL`
`float`	`ALPHA_LOW`
`float`	`ALPHA_MEDIUM`

Public methods
`static int`	`compositeARGBWithAlpha(int originalARGB, int alpha)` Calculates a new color by multiplying an additional alpha int value to the alpha channel of a color in integer type.
`static int`	`getColor(Context context, int colorAttributeResId, int defaultValue)` Returns the color int for the provided theme color attribute, or the default value if the attribute is not set in the current theme.
`static int`	`getColor(View view, int colorAttributeResId, int defaultValue)` Returns the color int for the provided theme color attribute, or the default value if the attribute is not set in the current theme, using the `view`'s `Context`.
`static int`	`getColor(Context context, int colorAttributeResId, String errorMessageComponent)` Returns the color int for the provided theme color attribute.
`static int`	`getColor(View view, int colorAttributeResId)` Returns the color int for the provided theme color attribute, using the `Context` of the provided `view`.
`static int`	`layer(View view, int backgroundColorAttributeResId, int overlayColorAttributeResId, float overlayAlpha)` Convenience method that wraps `layer(int, int, float)` for layering colors from theme attributes.
`static int`	`layer(int backgroundColor, int overlayColor)` Calculates a color that represents the layering of the `overlayColor` on top of the `backgroundColor`.
`static int`	`layer(View view, int backgroundColorAttributeResId, int overlayColorAttributeResId)` Convenience method that calculates `layer(View, int, int, float)` without an `overlayAlpha` value by passing in `1f` for the alpha value.
`static int`	`layer(int backgroundColor, int overlayColor, float overlayAlpha)` Calculates a color that represents the layering of the `overlayColor` (with `overlayAlpha` applied) on top of the `backgroundColor`.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

Constants

ALPHA_DISABLED

public static final float ALPHA_DISABLED

Constant Value: 0.38

ALPHA_DISABLED_LOW

public static final float ALPHA_DISABLED_LOW

Constant Value: 0.12

ALPHA_FULL

public static final float ALPHA_FULL

Constant Value: 1.0

ALPHA_LOW

public static final float ALPHA_LOW

Constant Value: 0.32

ALPHA_MEDIUM

public static final float ALPHA_MEDIUM

Constant Value: 0.54

Public methods

compositeARGBWithAlpha

public static int compositeARGBWithAlpha (int originalARGB, 
                int alpha)

Calculates a new color by multiplying an additional alpha int value to the alpha channel of a color in integer type.

Parameters
`originalARGB`	`int`: The original color.
`alpha`	`int`: The additional alpha [0-255].

Returns
`int`	The blended color.

getColor

public static int getColor (Context context, 
                int colorAttributeResId, 
                int defaultValue)

Returns the color int for the provided theme color attribute, or the default value if the attribute is not set in the current theme.

Parameters
`context`	`Context`
`colorAttributeResId`	`int`
`defaultValue`	`int`

Returns
`int`

getColor

public static int getColor (View view, 
                int colorAttributeResId, 
                int defaultValue)

Returns the color int for the provided theme color attribute, or the default value if the attribute is not set in the current theme, using the view's Context.

Parameters
`view`	`View`
`colorAttributeResId`	`int`
`defaultValue`	`int`

Returns
`int`

getColor

public static int getColor (Context context, 
                int colorAttributeResId, 
                String errorMessageComponent)

Returns the color int for the provided theme color attribute.

Parameters
`context`	`Context`
`colorAttributeResId`	`int`
`errorMessageComponent`	`String`

Returns
`int`

Throws
`IllegalArgumentException`	if the attribute is not set in the current theme.

getColor

public static int getColor (View view, 
                int colorAttributeResId)

Returns the color int for the provided theme color attribute, using the Context of the provided view.

Parameters
`view`	`View`
`colorAttributeResId`	`int`

Returns
`int`

Throws
`IllegalArgumentException`	if the attribute is not set in the current theme.

layer

public static int layer (View view, 
                int backgroundColorAttributeResId, 
                int overlayColorAttributeResId, 
                float overlayAlpha)

Convenience method that wraps layer(int, int, float) for layering colors from theme attributes.

Parameters
`view`	`View`
`backgroundColorAttributeResId`	`int`
`overlayColorAttributeResId`	`int`
`overlayAlpha`	`float`

Returns
`int`

layer

public static int layer (int backgroundColor, 
                int overlayColor)

Calculates a color that represents the layering of the overlayColor on top of the backgroundColor.

Parameters
`backgroundColor`	`int`
`overlayColor`	`int`

Returns
`int`

layer

public static int layer (View view, 
                int backgroundColorAttributeResId, 
                int overlayColorAttributeResId)

Convenience method that calculates layer(View, int, int, float) without an overlayAlpha value by passing in 1f for the alpha value.

Parameters
`view`	`View`
`backgroundColorAttributeResId`	`int`
`overlayColorAttributeResId`	`int`

Returns
`int`

layer

public static int layer (int backgroundColor, 
                int overlayColor, 
                float overlayAlpha)

Calculates a color that represents the layering of the overlayColor (with overlayAlpha applied) on top of the backgroundColor.

Parameters
`backgroundColor`	`int`
`overlayColor`	`int`
`overlayAlpha`	`float`

Returns
`int`