Added in API level 37

BlurRegion


public abstract class BlurRegion
extends Object

java.lang.Object
   ↳ android.view.BlurRegion


The abstract base class defining a region on the SurfaceView that should have a blur applied.

Summary

Public methods

abstract BlurRegion copy()

Returns a deep copy of this blur region.

boolean equals(Object o)

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

float getAlpha()

Returns the alpha for this region.

float getBlurRadius()

Returns the blur radius for this region.

int hashCode()

Returns a hash code value for the object.

void setAlpha(float alpha)

Sets the alpha for this region.

void setBlurRadius(float blurRadius)

Sets the blur radius for this region.

Inherited methods

Public methods

copy

Added in API level 37
public abstract BlurRegion copy ()

Returns a deep copy of this blur region.

Returns
BlurRegion deep copy of this blur region.
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.

getAlpha

Added in API level 37
public float getAlpha ()

Returns the alpha for this region.

Returns
float alpha value of the region

getBlurRadius

Added in API level 37
public float getBlurRadius ()

Returns the blur radius for this region.

Returns
float blur radius in pixels

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.

setAlpha

Added in API level 37
public void setAlpha (float alpha)

Sets the alpha for this region.

The default value for alpha is 1.0f.

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

setBlurRadius

Added in API level 37
public void setBlurRadius (float blurRadius)

Sets the blur radius for this region.

The default value for blur radius is 0.0f.

Parameters
blurRadius float: blur radius in pixels