Change plugin initialize

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

@@ -20,11 +20,10 @@ public class BarcodeScanChainway extends CordovaPlugin {
   }
 
   public boolean execute(String action, JSONArray args, final CallbackContext callbackContext) {
-    PluginHelper.init(cordova);
     Log.d(TAG, "execute: " + action);
     if (action.equalsIgnoreCase("scan")) {
       PluginHelper.scan(cordova, webView, args, callbackContext);
-    }else if(action.equalsIgnoreCase("getDevices")){
+    } else if (action.equalsIgnoreCase("getDevices")) {
       PluginHelper.getDevices(cordova, webView, args, callbackContext);
     }
     return true;

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

@@ -27,7 +27,12 @@ public class PluginHelper {
     private static Barcode2DWithSoft mInstance;
     private static JSONArray Devices = new JSONArray().put("camera").put("c4050");
 
-    public static void init(CordovaInterface cordova) {
+    public static void scan(CordovaInterface cordova, CordovaWebView webView, JSONArray args,
+            final CallbackContext callbackContext) {
+        String device = "";
+        try {
+            device = args.get(0).toString();
+            if (device.equalsIgnoreCase(Devices.getString(1))) {
                 Context context = cordova.getActivity();
                 try {
                     mInstance = Barcode2DWithSoft.getInstance();
@@ -36,15 +41,8 @@ public class PluginHelper {
                     }
                 } catch (Exception e) {
                     Log.e(TAG, e.getMessage());
+                    callbackContext.sendPluginResult(new PluginResult(Status.ERROR, e.getMessage()));
                 }
-    }
-
-    public static void scan(CordovaInterface cordova, CordovaWebView webView, JSONArray args,
-            final CallbackContext callbackContext) {
-        String device = "";
-        try {
-            device = args.get(0).toString();
-            if (device.equalsIgnoreCase(Devices.getString(1))) {
                 mInstance.setScanCallback(new Barcode2DWithSoft.ScanCallback() {
                     @Override
                     public void onScanComplete(int i, int length, byte[] data) {
@@ -62,8 +60,7 @@ public class PluginHelper {
                             JSONObject result = new JSONObject().put("text", barCode);
                             callbackContext.sendPluginResult(new PluginResult(Status.OK, result));
                         } catch (JSONException e) {
-                            e.printStackTrace();
-                            callbackContext.sendPluginResult(new PluginResult(Status.ERROR, ""));
+                            callbackContext.sendPluginResult(new PluginResult(Status.ERROR, e.getMessage()));
                         }
                     }
                 });
@@ -81,7 +78,8 @@ public class PluginHelper {
         }
     }
 
-    public static void getDevices(CordovaInterface cordova, CordovaWebView webView, JSONArray args, final CallbackContext callbackContext){
+    public static void getDevices(CordovaInterface cordova, CordovaWebView webView, JSONArray args,
+            final CallbackContext callbackContext) {
         callbackContext.sendPluginResult(new PluginResult(Status.OK, Devices));
     }
 }