How to Upgrade

From Version 2.x to 3.x

Dynamsoft Label Recognizer SDK has been refactored to integrate with DynamsoftCaptureVision (DCV) architecture. To upgrade from version 2.x or earlier to 3.x, we recommend you to follow the User Guide and re-write your codes.

Update the Libraries to 3.x Version

The Dynamsoft Label Recognizer SDK has been split into multiple libraries from the previous single library, and the dependency configuration in the app\build.gradle file needs to be updated accordingly.

• Local Dependency Put the following aar files into libs directory and update app\build.gradle file:

  • DynamsoftCaptureVisionRouter.aar
  • DynamsoftLabelRecognizer.aar
  • DynamsoftImageProcessing.aar
  • DynamsoftCore.aar
  • DynamsoftLicense.aar
  • DynamsoftCameraEnhancer.aar(optional)

  • DynamsoftUtility.aar(optional)

    dependencies {
        implementation fileTree(include: ['*.aar'], dir: 'libs')   
    }
    

• Remote Dependency(Maven) update app\build.gradle file:

    dependencies {
        implementation 'com.dynamsoft:dynamsoftcapturevisionrouter:{version-number}'
        implementation 'com.dynamsoft:dynamsoftlabelrecognizer:{version-number}'
        implementation 'com.dynamsoft:dynamsoftcameraenhancer:{version-number}'
        implementation 'com.dynamsoft:dynamsoftimageprocessing:{version-number}'
        implementation 'com.dynamsoft:dynamsoftcore:{version-number}'
        implementation 'com.dynamsoft:dynamsoftlicense:{version-number}'
        implementation 'com.dynamsoft:dynamsoftutility:{version-number}'
    }
  

  Note: Please view user guide for the correct version number.

Update the License Activation Code

• Java code in 2.x:

LicenseManager.initLicense("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9", this, new LicenseVerificationListener() {
    @Override
    public void licenseVerificationCallback(boolean isSuccess, CoreException error) {
        if (!isSuccess) {
            error.printStackTrace();
        }
    }
});

• Java code in 3.x:

LicenseManager.initLicense("Put your license", this, new LicenseVerificationListener() {
    @Override
    public void onLicenseVerified(boolean isSuccess, Exception error) {
        if(!isSuccess){
            error.printStackTrace();
        }
    }
});

Update Single Image Recognizing APIs

The APIs for recognizing text from single image has been adjusted as follows:

Update Video Streaming Recognizing APIs

The APIs for recognizing video frames has been adjusted as follows:

Migrate Your Templates

The template system is upgraded. The template you used for the previous version can’t be directly recognized by the new version. Please contact us to upgrade your template.

The template-based APIs have been updated as follows:

Migrate Your DLRRuntimeSettings

The class DLRRuntimeSettings has been refactored. It retains commonly used properties while removing the previously complex property settings, which are now exclusively supported through templates.

The APIs for accessing and updating DLRRuntimeSettings has been adjusted as follows:

Migrate to SimplifiedCaptureVisionSettings

The following properties are replaced by similar properties under SimplifiedCaptureVisionSettings. They can also be set via a template file(String).

Migrate to SimplifiedLabelRecognizerSettings

The following properties are replaced by similar properties under SimplifiedLabelRecognizerSettings. The majority of them can also be set via a template file(String).

Migrate to Template File

The following properties can only be set via a template file. Please contact us so that we can help you to transform your current settings to a new template file.