As an Android developer, if you want to pursue better application performance - reducing memory copy and garbage collection, you can migrate some of your code from Java/Kotlin to C++. In this article, I take the QR scanner as an example. I will use NDK camera2 API to implement the...

Previously, I wrote a post about how to recognize passport MRZ from an image file using C++. In this post, I will create a more productive Android app, which utilizes camera to recognize MRZ. This article is Part 2 in a 9-Part Series. Part 1 - Passport MRZ Recognition with...

Previously, I shared an article demonstrating how to use Camera2 APIs and Dynamsoft Barcode Reader to build a simple Android barcode reader app. In that demo project, the barcode decoding part is implemented in Java, which apparently has room for improvement. If we can get the pointer to the native...

Building Android camera apps is much more complicated than building iOS camera apps due to the different vendors and hardware specs. Since from API level 21, the old Camera class was deprecated and a brand-new Camera2 class was born. In this post, I want to use the least code to...