| Inherits from: | UIView |
|---|
This is a barcode reader encapsulted in a UIView. It manages an AVCaptureSession with a camera device and a ZBarCaptureReader, presents the video preview and optionally tracks detected barcode symbols. A delegate will usually be assigned for notification of new decode results.
- id<ZBarReaderViewDelegate> readerDelegate¶
The delegate that will be notified of new decode results.
- ZBarImageScanner* scanner¶
Access to the image scanner is provided for configuration. (read-only)
- BOOL tracksSymbols¶
Whether to display the tracking annotation (default YES).
- UIColor* trackingColor¶
The color of the tracking annotation (default green).
- BOOL allowsPinchZoom¶
Enable pinch gesture recognition for manually zooming the preview/decode (default YES).
- NSInteger torchMode¶
An AVCaptureTorchMode value that will be applied if/when appropriate. (default Auto)
- BOOL showsFPS¶
Overlay the decode frame rate on the preview to help with performance optimization. This is for debug only and should not be set for production. (default NO)
- CGFloat zoom¶
Zoom scale factor applied to the video preview and scanCrop. This value is also updated by the pinch-zoom gesture. Valid values are in the range [1,maxZoom]. (default 1.25)
- CGFloat maxZoom¶
Maximum settable zoom level. The zoom property will be clipped to this value.
- CGRect scanCrop¶
The region of the video image that will be scanned, in normalized image coordinates. Note that the video image is in landscape mode (default {{0, 0}, {1, 1}})
- CGAffineTransform previewTransform¶
Additional transform that will be applied to the video preview. Note that this transform is not applied to scanCrop.
- AVCaptureDevice* device¶
The capture device may be manipulated or replaced.
- AVCaptureSession* session¶
Direct access to the capture session. Warranty void if opened. (read-only)
- ZBarCaptureReader* captureReader¶
Direct access to the capture reader. Warranty void if opened. (read-only)
- BOOL enableCache¶
Deprecated : Whether to use the inter-frame consistency cache. This should always be set to YES.
- - (id) initWithImageScanner:(ZBarImageScanner*)imageScanner
Imagescanner : A pre-configured ZBarImageScanner to use for scanning Returns : The initialized ZBarReaderView
- - (void) start
Begin/resume scanning after a call to stop.
- - (void) stop
Stop scanning and pause the video feed.
- - (void) flushCache
Flush the inter-frame consistency cache. Any barcodes in the frame will be re-recognized in subsequent frames.
- - (void) setZoom:(CGFloat)zoom animated:(BOOL)animated
Set the zoom property with optional animation.
- - (void) willRotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration
Compensate for device / camera / interface orientation. Must be called by containing view controller that supports any non-portrait orientation to restore the camera preview to the correct orientation. Call from view controller method of the same name for correct animation.