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Summary: Constants | Inherited Constants | Fields | Ctors | Methods | Inherited Methods

# RoundedCorner

`public final class RoundedCorner`
`extends Object` `implements Parcelable`

java.lang.Object
↳ | android.view.RoundedCorner

Represents a rounded corner of the display.

Note: The rounded corner formed by the radius and the center is an approximation.

`RoundedCorner` is immutable.

## Summary

### Constants
`int` | `POSITION_BOTTOM_LEFT` The rounded corner is at the bottom-left of the screen.
`int` | `POSITION_BOTTOM_RIGHT` The rounded corner is at the bottom-right of the screen.
`int` | `POSITION_TOP_LEFT` The rounded corner is at the top-left of the screen.
`int` | `POSITION_TOP_RIGHT` The rounded corner is at the top-right of the screen.

### Inherited constants
From interface `android.os.Parcelable`
`int` | `CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int` | `PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

### Fields
`public static final Creator<RoundedCorner>` | `CREATOR`

### Public constructors
`RoundedCorner(int position, int radius, int centerX, int centerY)` Creates a `RoundedCorner`.

### Public methods
`int` | `describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`boolean` | `equals(Object o)` Indicates whether some other object is "equal to" this one.
`Point` | `getCenter()` Returns the circle center of a quarter circle approximation of this `RoundedCorner`.
`int` | `getPosition()` Get the position of this `RoundedCorner`.
`int` | `getRadius()` Returns the radius of a quarter circle approximation of this `RoundedCorner`.
`int` | `hashCode()` Returns a hash code value for the object.
`String` | `toString()` Returns a string representation of the object.
`void` | `writeToParcel(Parcel out, int flags)` Flatten this object in to a Parcel.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
From interface `android.os.Parcelable`
`abstract int` | `describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void` | `writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

## Constants

### POSITION_BOTTOM_LEFT

    public static final int POSITION_BOTTOM_LEFT

The rounded corner is at the bottom-left of the screen.

Constant Value: 3 (0x00000003)

### POSITION_BOTTOM_RIGHT

    public static final int POSITION_BOTTOM_RIGHT

The rounded corner is at the bottom-right of the screen.

Constant Value: 2 (0x00000002)

### POSITION_TOP_LEFT

    public static final int POSITION_TOP_LEFT

The rounded corner is at the top-left of the screen.

Constant Value: 0 (0x00000000)

### POSITION_TOP_RIGHT

    public static final int POSITION_TOP_RIGHT

The rounded corner is at the top-right of the screen.

Constant Value: 1 (0x00000001)

## Fields

### CREATOR

    public static final Creator<RoundedCorner> CREATOR

## Public constructors

### RoundedCorner

    public RoundedCorner (int position,
                    int radius,
                    int centerX,
                    int centerY)

Creates a `RoundedCorner`.

Note that this is only useful for tests. For production code, developers should always use a `RoundedCorner` obtained from the system via `WindowInsets#getRoundedCorner` or `Display#getRoundedCorner`.

Parameters
`position` | `int`: the position of the rounded corner. Value is `POSITION_TOP_LEFT`, `POSITION_TOP_RIGHT`, `POSITION_BOTTOM_RIGHT`, or `POSITION_BOTTOM_LEFT`
`radius` | `int`: the radius of the rounded corner.
`centerX` | `int`: the x of center point of the rounded corner.
`centerY` | `int`: the y of center point of the rounded corner.

## Public methods

### describeContents

    public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of `writeToParcel(android.os.Parcel, int)`, the return value of this method must include the `CONTENTS_FILE_DESCRIPTOR` bit.

Returns
`int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or `CONTENTS_FILE_DESCRIPTOR`

### equals

    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`.

The `equals` method for class `Object` implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values `x` and `y`, this method returns `true` if and only if `x` and `y` refer to the same object (`x == y` has the value `true`).

Note that it is generally necessary to override the `hashCode` method whenever this method is overridden, so as to maintain the general contract for the `hashCode` method, which states that equal objects must have equal hash codes.

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.

### getCenter

    public Point getCenter ()

Returns the circle center of a quarter circle approximation of this `RoundedCorner`.

Returns
`Point` | the center point of this `RoundedCorner` in the application's coordinate. This value cannot be `null`.

### getPosition

    public int getPosition ()

Get the position of this `RoundedCorner`.

Returns
`int` | Value is `POSITION_TOP_LEFT`, `POSITION_TOP_RIGHT`, `POSITION_BOTTOM_RIGHT`, or `POSITION_BOTTOM_LEFT`

See also:

- `POSITION_TOP_LEFT`
- `POSITION_TOP_RIGHT`
- `POSITION_BOTTOM_RIGHT`
- `POSITION_BOTTOM_LEFT`

### getRadius

    public int getRadius ()

Returns the radius of a quarter circle approximation of this `RoundedCorner`.

Returns
`int` | the rounded corner radius of this `RoundedCorner`. Returns 0 if there is no rounded corner.

### hashCode

    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(Object)` 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(java.lang.Object)` 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.

As much as is reasonably practical, the hashCode method defined by class `Object` does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)

Returns
`int` | a hash code value for this object.

### toString

    public String toString ()

Returns a string representation of the object. In general, the `toString` method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The `toString` method for class `Object` returns a string consisting of the name of the class of which the object is an instance, the at-sign character ``@`', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

>      getClass().getName() + '@' + Integer.toHexString(hashCode())

Returns
`String` | a string representation of the object.

### writeToParcel

    public void writeToParcel (Parcel out,
                    int flags)

Flatten this object in to a Parcel.

Parameters
`out` | `Parcel`: This value cannot be `null`.
`flags` | `int`: Additional flags about how the object should be written. May be 0 or `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES

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