Dynamsoft Developer Blog

In the B4X developing suite, B4J is used to develop desktop apps based on JavaFX or server apps based on Jetty. By default, it cannot be used to create web applications without a server. A third-party library, BANano, makes this possible. It can transpile everything you write ...

In the previous article, we created a Dynamsoft Barcode Reader library for B4X. Here, we are gonna use the library to create a barcode scanner which reads barcodes from the camera stream.

B4X is a set of rapid development tools which can be used to develop apps for all the major mobile and desktop platforms.

Have you had such an experience that you need to scan a QR code displayed on a screen in the front of a meeting room but you sat in the back? You opened the barcode scanning app and aimed it at the code, but it just couldn’t read the code. Of course, it is better to make the ...

About two years ago, I wrote an article sharing how to build a Flutter barcode plugin with Dynamsoft Barcode Reader step by step. At that time, Flutter was still under development and only supported Android and iOS. Nowadays, Google has released Flutter 2, which allows develo ...

Camera control and barcode reading are two essential parts of a barcode scanner.

According to the American Association of Motor Vehicle Administrators (AAMVA) specification, PDF417 symbology is used for storing personal information on US driver’s license. In this article, I will use Google mobile vision APIs to recognize a driver’s license.  Besides, I wi ...

I think Flutter is vital for developers. Not only it supports fast building Android and iOS apps from a single codebase, but also it is used for building the upcoming Google Fuchsia apps. Like React Native and Cordova, the Flutter ecosystem consists of amounts of plugins, whi ...

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 th ...

Assume you apply barcode technology to the logistics conveyor belt for scanning parcels. A problem you may face is how to recognize barcodes from blurred images. Although we can use advanced algorithms to deal with this complicated case, we’d better improve the image quality ...

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 ...

If you are using React Native, you can quickly create a camera app with React Native Camera. In addition, React Native Camera component supports barcode scanning, face detection, and text recognition. This article shares how to replace the default barcode reading function wit ...

.NET developers like Xamarin because they can develop Android and iOS apps in C#. However, if you are not afraid of learning new programming languages, you’d better choose Kotlin for Android and Swift for iOS. Unlike React Native, Flutter and Cordova, with Xamarin, you cannot ...

If you have a .jar or a .aar file for distribution, you can publish it to Maven central or jcenter. But the premise is your package has to be open source. If you want to distribute a commercial library, you’d better host a Maven repository yourself. Inspired by STEFFENWELLNER ...

Dynamsoft Android Camera SDK is coming soon. In this article, let’s preview the SDK and learn how to write an Android document scanning app with a few lines of Kotlin code.

Last week I made a warm up for Kotlin, getting started to learn tutorials and reference. Now it is time to take the next step. Since Kotlin is hundred percent compatible with Java, we can use both programming languages without barriers in one project. In this article, I want ...

Kotlin, developed by JetBrain, is a statically typed programming language that compiles to Java code and JavaScript code. Recently, Google announced that Kotlin is a first-class language for writing Android apps. The big Android market will bring a promising future for Kotlin ...

Last week, I shared how to build a simplest React Native component from scratch. Now I want to do something more complicated. I will link Dynamsoft Barcode Reader SDK, which released as an AAR bundle file, to a React Native Barcode project and write some Java code as the brid ...

When using React Native to write mobile apps, JavaScript is the primary programming language. However, sometimes, you may want to call a platform API that not supported by existing React Native component or use a third-party Android library that built as an AAR file. For thes ...

Cordova is a mobile application development framework that enables developers to build Android, iOS and Windows Phone apps using HTML5, JavaScript, and CSS3. It uses web views to render UI elements instead of the platform’s native UI framework. Cordova can be extended to add ...

Flutter, a framework developed by Google, aims to help developers build iOS and Android apps from a single codebase in Dart programming language. It is still an early-stage open-source project. The development environment only works on macOS and Linux (64-bit). I was curious ...

Dynamsoft Barcode SDK for Android is distributed as an AAR file. This article aims to help C# developers, who want to build mobile barcode apps with Xamarin, to use the AAR file in Visual Studio 2015.

Dynamsoft aims to make barcode SDK available for all mainstream platforms, including Windows, Linux, macOS, iOS, and Android. There are many developers devoted to developing mobile barcode scanner app for iOS and Android platforms. To expedite the developing work, some of the ...

No matter whether you are a mobile developer of Android or iOS, your ultimate goal is definitely to publish your apps on Google Play or App Store. Before submitting apps for review, you need to attach some screenshots used for promotion. Furthermore, you can record screen vid ...

When building mobile barcode scanning apps for Android or iOS, developers could either choose open source SDKs – ZXing and ZBar, or some commercial mobile barcode SDKs. If you are an Android developer and have installed Android Play Services SDK level 26 or greater, it is con ...

When making third party libraries and SDKs for Android development, you could build so files, jar files, or aar files. I prefer providing aar files for distribution since aar file is a simple zip file which includes so files, jar files, and other resources.

If you are still focusing on Windows desktop development, it is time to migrate to IoT and mobile technologies that have a big boost in the near future. In this post, let’s take a glimpse of how to build C/C++ “hello world” program for Raspberry Pi and Android on Windows usin ...

Last week, Android Developers Blog posted an article - An update on Eclipse Android Developer Tools. It announced that Google will end development and official support for the Android Developer Tools (ADT) in Eclipse at the end of the year. Many developers have been using Ecl ...

Xamarin platform helps .Net developers to easily build applications for Android, iOS, Mac and Windows in C#. Let’s take a look at how to create our first Android demo with Xamarin in Visual Studio 2013.

Comparing to iOS, one of my favorite Android features is that Android supports USB peripherals. It’s fairly convenient to connect USB devices to Android smartphones via OTG cables. Therefore, no matter whether your Android phones, which probably only have 16G built-in storage ...

Tesseract is a well-known open source OCR engine that released under the Apache License 2.0. In this tutorial, I’d like to share how to build the OCR library for Android, as well as how to implement a simple Android OCR application with it.

When you are scanning tons of documents with your scanner applications, probably you don’t have enough time to take a break sometimes. Because you need to stare at the screen for checking all scanning information in case of some errors. Fortunately, mobile applications can he ...

If you have a TWAIN-compliant scanner, you can easily control it with Dynamic Web TWAIN or Dynamic .NET TWAIN. Both SDKs can help you create some excellent applications for document scanning and management on PCs. However, have you ever complained that it’s so inconvenient to ...

Java Native Interface (JNI) is the glue between Java and native code such as C, C++, and assembly. With JNI, Java applications are capable of supporting platform-specific features. JNI enables developers to call low-level APIs (e.g. SQL, OpenGL etc.) to make Java application ...

When you are going to purchase a new smartphone like iPhone 6 or Galaxy S5, don’t just throw your old devices away. Via socket connection, we can build a remote monitoring system with obsolete mobile devices instead of purchasing expensive Webcams or wireless cameras. In this ...

In this tutorial, I’d like to share how to write a simple Android application to take a picture, as well as upload the image to a remote PHP server. Let’s get started with a simple Java application.

Android 4.4 KitKat has been out for a couple of days now. Google has brought us some excellent few features. And, I can see the smokeless war between Google and Apple heating up. It is no doubt that competition makes for a better product experience. I would like to share some ...

Barcode scanning, especially QR code scans, are now widely used in various applications. This includes advertisements, newspapers, social networks, signage, and so on. The growth of QR codes is in large part due to the smartphone market’s booming growth. As a result, scanning ...