Continuous Scanning: The approach should be capable of scanning multiple items in a row without requiring any sort of reset, but also allow for one-offs.Performance: Barcode processing should have minimal impact on viewfinder rendering.
Viewfinder: We need to display what is being scanned.I want to share my experiences in implementing a solution that would satisfy the following requirements: Recently though, I was involved in a project that required extended barcode scanning functionality and, due to the caveats with the original community extension, I opted to explore a purely HTML5 solution to the issue. For short-burst scanning, the existing community extension can fill that role. Our WebWorks team will soon be integrating BlackBerry 10 support into a cross-platform PhoneGap plugin for barcode scanning, based on the existing community extension. Each render creates a new image from the filesystem, resulting in memory issues when the viewfinder displays for an extended period of time.Data transfer relies on saving/loading images from the filesystem, resulting in a viewfinder (renders camera stream) refresh rate around 2-3FPS.The original community extension available in GitHub leverages native BlackBerry functionality to scan barcodes. There are a number of options if you are looking to implement barcode scanning in your HTML5/WebWorks applications.
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