RoundedRectBlurRegion


public final class RoundedRectBlurRegion
extends BlurRegion

java.lang.Object
   ↳ android.view.BlurRegion
     ↳ android.view.RoundedRectBlurRegion


Defines a rounded rectangular blur region on the SurfaceView.

Summary

Public constructors

RoundedRectBlurRegion()

Constructs a new RoundedRectBlurRegion with the default parameters.

RoundedRectBlurRegion(RectF rect, float[] cornerRadii, float alpha, float blurRadius)

Constructs a new RoundedRectBlurRegion with the specified rounded rectangle coordinates and corner radii.

Public methods

RoundedRectBlurRegion copy()

Returns a deep copy of this blur region.

boolean equals(Object o)

Indicates whether some other object is "equal to" this one.

RectF getBounds()

Returns the bounds of the blur region.

float[] getCornerRadii()

Returns the corner radii for the blur region.

int hashCode()

Returns a hash code value for the object.

void setBounds(RectF rect)

Sets the bounds of the blur region.

void setCornerRadii(float[] cornerRadii)

Sets the corner radii for the blur region.

void setCornerRadii(float cornerRadius)

Sets the corner radius for all corners of the blur region.

Inherited methods

Public constructors

RoundedRectBlurRegion

Added in API level 37
public RoundedRectBlurRegion ()

Constructs a new RoundedRectBlurRegion with the default parameters.

The default bounds and all corner radii are 0.0f.

The default alpha is 1.0f and the default blur radius is 0.0f.

RoundedRectBlurRegion

Added in API level 37
public RoundedRectBlurRegion (RectF rect, 
                float[] cornerRadii, 
                float alpha, 
                float blurRadius)

Constructs a new RoundedRectBlurRegion with the specified rounded rectangle coordinates and corner radii.

The cornerRadii values are ordered [topLeftX, topLeftY, topRightX, topRightY, bottomLeftX, bottomLeftY, bottomRightX, bottomRightY].

Parameters
rect RectF: bounds of the blur region.
This value cannot be null.

cornerRadii float: array of 8 floats representing the corner radii.
This value cannot be null.

alpha float: alpha value of the region [0.0 - 1.0].
Value is between 0.0f and 1.0f inclusive

blurRadius float: the blur radius in pixels

Throws
IllegalArgumentException if cornerRadii is null or its length is not 8 or rect is null

Public methods

copy

Added in API level 37
public RoundedRectBlurRegion copy ()

Returns a deep copy of this blur region.

Returns
RoundedRectBlurRegion This value cannot be null.

equals

Added in API level 37
public boolean equals (Object o)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o Object: the reference object with which to compare.

Returns
boolean true if this object is the same as the obj argument; false otherwise.

getBounds

Added in API level 37
public RectF getBounds ()

Returns the bounds of the blur region.

Returns
RectF RectF containing the bounds.
This value cannot be null.

getCornerRadii

Added in API level 37
public float[] getCornerRadii ()

Returns the corner radii for the blur region.

Returns
float[] array of 8 floats representing the corner radii.
This value cannot be null.

hashCode

Added in API level 37
public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns
int a hash code value for this object.

setBounds

Added in API level 37
public void setBounds (RectF rect)

Sets the bounds of the blur region.

The default value is an empty rectangle.

Parameters
rect RectF: the bounds of the blur region.
This value cannot be null.

Throws
IllegalArgumentException if rect is null

setCornerRadii

Added in API level 37
public void setCornerRadii (float[] cornerRadii)

Sets the corner radii for the blur region.

The cornerRadii values are ordered [topLeftX, topLeftY, topRightX, topRightY, bottomLeftX, bottomLeftY, bottomRightX, bottomRightY].

The default value is all zeros.

Parameters
cornerRadii float: array of 8 floats representing the corner radii.
This value cannot be null.

Throws
IllegalArgumentException if cornerRadii is null or its length is not 8

setCornerRadii

Added in API level 37
public void setCornerRadii (float cornerRadius)

Sets the corner radius for all corners of the blur region.

Parameters
cornerRadius float: radius in pixels.