Rectangular Viewfinder

Defined in framework ScanditDataCaptureCore

SDCRectangularViewfinderStyle

Added in version 6.8.0

The style of the SDCRectangularViewfinder.

SDCRectangularViewfinderStyleLegacy

Added in version 6.8.0

Legacy style from versions before 6.8.

SDCRectangularViewfinderStyleSquare

Added in version 6.8.0

New style from version 6.8 onwards with square corners.

SDCRectangularViewfinderStyleRounded

Added in version 6.8.0

New style from version 6.8 onwards with rounded corners.

SDCRectangularViewfinderLineStyle

Added in version 6.8.0

The style of the lines drawn as part of the SDCRectangularViewfinder for all styles except SDCRectangularViewfinderStyleLegacy.

SDCRectangularViewfinderLineStyleBold

Added in version 6.8.0

Draws lines with a width of 5 dips/points.

SDCRectangularViewfinderLineStyleLight

Added in version 6.8.0

Draws lines with a width of 3 dips/points.

SDCRectangularViewfinder

@interface SDCRectangularViewfinder : NSObject <SDCViewfinder>

Added in version 6.0.0

Rectangular viewfinder with an embedded Scandit logo. The rectangle is always centered on the point of interest of the view.

The rectangular viewfinder is displayed when the recognition is active and hidden when it is not.

To use this viewfinder, create a new instance and assign it to the overlay, e.g. the barcode capture overlay via the SDCBarcodeCaptureOverlay.viewfinder property.

+ viewfinderWithStyle:lineStyle:

+ (nonnull instancetype)viewfinderWithStyle:(SDCRectangularViewfinderStyle)style
                                  lineStyle:(SDCRectangularViewfinderLineStyle)lineStyle

Added in version 6.8.0

Constructs a new rectangular viewfinder with the specified style and line style.

+ viewfinderWithStyle:

+ (nonnull instancetype)viewfinderWithStyle:(SDCRectangularViewfinderStyle)style

Added in version 6.8.0

Constructs a new rectangular viewfinder with the specified style and SDCRectangularViewfinderLineStyleLight.

+ viewfinder

+ (nonnull instancetype)viewfinder

Added in version 6.0.0

Constructs a new rectangular viewfinder with SDCRectangularViewfinderStyleLegacy and SDCRectangularViewfinderLineStyleLight.

Deprecated since version 6.14.0: Use viewfinderWithStyle: instead.

style

@property (nonatomic, readonly) SDCRectangularViewfinderStyle style

Added in version 6.8.0

The style of the viewfinder.

lineStyle

@property (nonatomic, readonly) SDCRectangularViewfinderLineStyle lineStyle

Added in version 6.8.0

The style of the viewfinder’s lines. Not available for SDCRectangularViewfinderStyleLegacy.

color

@property (nonatomic, strong, nonnull) UIColor *color

Added in version 6.0.0

The color used to draw the logo and viewfinder when the mode is enabled. The color is always used at full opacity, changing the alpha value has no effect.

disabledColor

@property (nonatomic, strong, nonnull) UIColor *disabledColor

Added in version 6.3.0

The color used to draw the logo and viewfinder when the mode is disabled. By default transparent.

dimming

@property (nonatomic, assign) CGFloat dimming

Added in version 6.8.0

The amount the area outside the viewfinder’s rectangle is dimmed by. Accepts values between 0 (no dimming) and 1 (fully blacked out). Not available for SDCRectangularViewfinderStyleLegacy.

disabledDimming

@property (nonatomic, assign) CGFloat disabledDimming

Added in version 6.10.0

The amount the area outside the viewfinder’s rectangle is dimmed by when the mode is disabled. Accepts values between 0 (no dimming) and 1 (fully blacked out). Not available for SDCRectangularViewfinderStyleLegacy.

animation

@property (nonatomic, strong, nullable) SDCRectangularViewfinderAnimation *animation

Added in version 6.8.0

The animation used for the viewfinder, if any. Not available for SDCRectangularViewfinderStyleLegacy.

sizeWithUnitAndAspect

@property (nonatomic, readonly) SDCSizeWithUnitAndAspect *sizeWithUnitAndAspect

Added in version 6.0.0

The size and sizing mode of the viewfinder.

- setSize:

- (void)setSize:(SDCSizeWithUnit)size

Added in version 6.0.0

Sets the horizontal and vertical size of the viewfinder to the provided value. When the unit is relative (unit in either x or y is SDCMeasureUnitFraction) the size is computed relative to the view size minus the scan area margins.

- setWidth:aspectRatio:

- (void)setWidth:(SDCFloatWithUnit)width
     aspectRatio:(CGFloat)heightToWidthAspectRatio

Added in version 6.0.0

Sets the width of the viewfinder and compute height automatically based on the provided height/width aspect ratio. When the unit is relative (SDCMeasureUnitFraction), the width is computed relative to the view size minus the scan area margins.

- setHeight:aspectRatio:

- (void)setHeight:(SDCFloatWithUnit)height
      aspectRatio:(CGFloat)widthToHeightAspectRatio

Added in version 6.0.0

Sets the height of the viewfinder and compute width automatically based on the provided width/height aspect ratio. When the unit is relative (SDCMeasureUnitFraction), the height is computed relative to the view size minus the scan area margins.

- setShorterDimension:aspectRatio:

- (void)setShorterDimension:(CGFloat)fraction
                aspectRatio:(CGFloat)aspectRatio

Added in version 6.8.0

Sets the viewfinder size on the short side of the scan area as fraction of the scan area size. The size on the long side is calculated based on the provided short side/long side aspectRatio.

NSStringFromRectangularViewfinderLineStyle(style)

NSString *_Nonnull NSStringFromRectangularViewfinderLineStyle(SDCRectangularViewfinderLineStyle style)

Added in version 6.8.0

Serialize the viewfinder style in a JSON string.

SDCRectangularViewfinderStyleFromJSONString(JSONString, style)

BOOL SDCRectangularViewfinderStyleFromJSONString(NSString *_Nonnull JSONString, SDCRectangularViewfinderStyle *_Nonnull style)

Added in version 6.8.0

Deserialize the viewfinder style from a JSON string.

NSStringFromRectangularViewfinderLineStyle(style)

NSString *_Nonnull NSStringFromRectangularViewfinderLineStyle(SDCRectangularViewfinderLineStyle style)

Added in version 6.8.0

Serialize the viewfinder line style in a JSON string.

SDCRectangularViewfinderLineStyleFromJSONString(JSONString, style)

BOOL SDCRectangularViewfinderLineStyleFromJSONString(NSString *_Nonnull JSONString, SDCRectangularViewfinderLineStyle *_Nonnull style)

Added in version 6.8.0

Deserialize the viewfinder line style from a JSON string.