Added in API level 14
Deprecated in API level 21

Area


open class Area
kotlin.Any
   ↳ android.hardware.Camera.Area

The Area class is used for choosing specific metering and focus areas for the camera to use when calculating auto-exposure, auto-white balance, and auto-focus.

To find out how many simultaneous areas a given camera supports, use Parameters#getMaxNumMeteringAreas() and Parameters#getMaxNumFocusAreas(). If metering or focusing area selection is unsupported, these methods will return 0.

Each Area consists of a rectangle specifying its bounds, and a weight that determines its importance. The bounds are relative to the camera's current field of view. The coordinates are mapped so that (-1000, -1000) is always the top-left corner of the current field of view, and (1000, 1000) is always the bottom-right corner of the current field of view. Setting Areas with bounds outside that range is not allowed. Areas with zero or negative width or height are not allowed.

The weight must range from 1 to 1000, and represents a weight for every pixel in the area. This means that a large metering area with the same weight as a smaller area will have more effect in the metering result. Metering areas can overlap and the driver will add the weights in the overlap region.

Summary

Public constructors
Area(rect: Rect!, weight: Int)

Create an area with specified rectangle and weight.

Public methods
open Boolean
equals(other: Any?)

Compares obj to this area.

Properties
Rect!

Bounds of the area.

Int

Weight of the area.

Public constructors

Area

Added in API level 14
Area(
    rect: Rect!,
    weight: Int)

Create an area with specified rectangle and weight.

Parameters
rect Rect!: the bounds of the area.
weight Int: the weight of the area.

Public methods

equals

Added in API level 14
open fun equals(other: Any?): Boolean

Deprecated: Deprecated in Java.

Compares obj to this area.

Parameters
obj the object to compare this area with. This value may be null.
Return
Boolean true if the rectangle and weight of obj is the same as those of this area. false otherwise.

Properties

rect

Added in API level 14
var rect: Rect!

Deprecated: Deprecated in Java.

Bounds of the area. (-1000, -1000) represents the top-left of the camera field of view, and (1000, 1000) represents the bottom-right of the field of view. Setting bounds outside that range is not allowed. Bounds with zero or negative width or height are not allowed.

weight

Added in API level 14
var weight: Int

Deprecated: Deprecated in Java.

Weight of the area. The weight must range from 1 to 1000, and represents a weight for every pixel in the area. This means that a large metering area with the same weight as a smaller area will have more effect in the metering result. Metering areas can overlap and the driver will add the weights in the overlap region.