barcode-scanner-activity.md

layout	default-layout
title	BarcodeScannerActivity Class - Dynamsoft Barcode Reader Android Edition
description	BarcodeScannerActivity of Dynamsoft Barcode Reader Android is an activity class that implements barcode decoding features.
keywords	scanner, activity, startCapturing, license
needAutoGenerateSidebar	true
needGenerateH3Content	true
breadcrumbText	BarcodeScannerActivity

Class BarcodeScannerActivity

BarcodeScannerActivity is an activity class that implements barcode decoding features.

Definition

Assembly: DynamsoftBarcodeReaderBundle.aar

Namespace: com.dynamsoft.dbrbundle.ui

class BarcodeScannerActivity extends AppCompatActivity

ResultContract

A contract specifying that the activity BarcodeScannerActivity can be called with an input of type BarcodeScannerConfig and produce an output of type BarcodeScanResult.

public static final class ResultContract extends ActivityResultContract<BarcodeScannerConfig, BarcodeScanResult>

How to Use

>- Java >- Kotlin > >1. ```java public class MainActivity extends AppCompatActivity { private ActivityResultLauncher launcher; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextView textView = findViewById(R.id.tv_result); // Set up the license via the BarcodeScannerConfig BarcodeScannerConfig config = new BarcodeScannerConfig(); config.setLicense("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9"); // Set up a launcher and register the result callback for BarcodeScannerActivity. launcher = registerForActivityResult(new BarcodeScannerActivity.ResultContract(), result -> { if (result.getResultStatus() == BarcodeScanResult.EnumResultStatus.RS_FINISHED && result.getBarcodes() != null) { String content = "Result: format: " + result.getBarcodes()[0].getFormatString() + "\n" + "content: " + result.getBarcodes()[0].getText(); textView.setText(content); } else if (result.getResultStatus() == BarcodeScanResult.EnumResultStatus.RS_CANCELED) { textView.setText("Scan canceled."); } if (result.getErrorString() != null && !result.getErrorString().isEmpty()) { textView.setText(result.getErrorString()); } }); // Config a button on the UI. Launch the BarcodeScannerActivity when button clicked. findViewById(R.id.btn_navigate).setOnClickListener(v -> launcher.launch(config)); } } ``` 2. ```kotlin class MainActivity : AppCompatActivity() { private lateinit var launcher: ActivityResultLauncher override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val textView = findViewById(R.id.tv_result) // Set up the license via the BarcodeScannerConfig val config = BarcodeScannerConfig().apply { license = "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9"; } // Set up a launcher and register the result callback for BarcodeScannerActivity. launcher = registerForActivityResult(BarcodeScannerActivity.ResultContract()) { result -> if (result.resultStatus == BarcodeScanResult.EnumResultStatus.RS_FINISHED && result.barcodes != null) { val content = """ Result: format: ${result.barcodes[0].formatString} content: ${result.barcodes[0].text} """.trimIndent() textView.text = content } else if (result.resultStatus == BarcodeScanResult.EnumResultStatus.RS_CANCELED) { textView.text = "Scan canceled." } if (result.errorString != null && result.errorString.isNotEmpty()) { textView.text = result.errorString } } // Config a button on the UI. Launch the BarcodeScannerActivity when button clicked. findViewById(R.id.btn_navigate).setOnClickListener { launcher.launch( config ) } } } ```