Added getDevices function

src/android/com/cocodin/barcodescan/plugin/BarcodeScanChainway.java

@@ -24,6 +24,8 @@ public class BarcodeScanChainway extends CordovaPlugin {
     Log.d(TAG, "execute: " + action);
     if (action.equalsIgnoreCase("scan")) {
       PluginHelper.scan(cordova, webView, args, callbackContext);
+    }else if(action.equalsIgnoreCase("getDevices")){
+      PluginHelper.getDevices(cordova, webView, args, callbackContext);
     }
     return true;
   }

src/android/com/cocodin/barcodescan/plugin/PluginHelper.java

 package com.cocodin.barcodescan.plugin;
 
+import java.util.Objects;
 import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
 
-import com.rscja.utility.StringUtility;
 import com.zebra.adc.decoder.Barcode2DWithSoft;
 
 import org.apache.cordova.CordovaInterface;
@@ -18,7 +17,6 @@ import org.json.JSONObject;
 import com.phonegap.plugins.barcodescanner.BarcodeScanner;
 
 import android.content.Context;
-import android.os.Message;
 import android.util.Log;
 
 public class PluginHelper {
@@ -27,9 +25,12 @@ public class PluginHelper {
     private static boolean threadStop = true;
     private static ExecutorService executor;
     private static Barcode2DWithSoft mInstance;
+    private static JSONArray Devices = new JSONArray();
 
     public static void init(CordovaInterface cordova) {
         Context context = cordova.getActivity();
+        Devices.put("camera");
+        Devices.put("scanner");
         try {
             mInstance = Barcode2DWithSoft.getInstance();
             if (mInstance != null) {
@@ -45,11 +46,7 @@ public class PluginHelper {
         String device = "";
         try {
             device = args.get(0).toString();
-        } catch (JSONException e) {
-            e.printStackTrace();
-            callbackContext.sendPluginResult(new PluginResult(Status.ERROR, ""));
-        }
-        if (device.equalsIgnoreCase("scanner")) {
+            if (device.equalsIgnoreCase(Devices.getString(0))) {
                 mInstance.setScanCallback(new Barcode2DWithSoft.ScanCallback() {
                     @Override
                     public void onScanComplete(int i, int length, byte[] data) {
@@ -74,11 +71,19 @@ public class PluginHelper {
                 });
 
                 mInstance.scan();
-        } else if (device.equalsIgnoreCase("camera")) {
+            } else if (device.equalsIgnoreCase(Devices.getString(1))) {
                 BarcodeScanner barcodeScanner = new BarcodeScanner();
                 barcodeScanner.cordova = cordova;
                 barcodeScanner.webView = webView;
                 barcodeScanner.execute("scan", new JSONArray(), callbackContext);
             }
+        } catch (JSONException e) {
+            e.printStackTrace();
+            callbackContext.sendPluginResult(new PluginResult(Status.ERROR, ""));
+        }
+    }
+
+    public static void getDevices(CordovaInterface cordova, CordovaWebView webView, JSONArray args, final CallbackContext callbackContext){
+        callbackContext.sendPluginResult(new PluginResult(Status.OK, Devices));
     }
 }

www/android/barcode-scan-chainway.js

-var exec = require('cordova/exec');
+cordova.define("barcode-scan-chainway.BarcodeScanChainway", function (require, exports, module) {
+  var exec = require('cordova/exec');
 
-var PLUGIN_NAME = 'BarcodeScanChainway';
+  var PLUGIN_NAME = 'BarcodeScanChainway';
 
-var BarcodeScanChainway = {
+  var BarcodeScanChainway = {
     scan: function (device, cb, error) {
       exec(cb, error, PLUGIN_NAME, 'scan', [device]);
+    },
+    getDevices: function (cb, error) {
+      exec(cb, error, PLUGIN_NAME, 'getDevices', []);
     }
-};
-module.exports = BarcodeScanChainway;
+  };
+  module.exports = BarcodeScanChainway;
+
+});
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