Fix code smells

src/android/Printer.java

@@ -79,7 +79,7 @@ public class Printer extends CordovaPlugin {
     /**
      * Invokes the callback once the job has reached a final state.
      */
-    OnPrintJobStateChangeListener listener = new OnPrintJobStateChangeListener() {
+    private OnPrintJobStateChangeListener listener = new OnPrintJobStateChangeListener() {
         /**
          * Callback notifying that a print job state changed.
          *
@@ -278,6 +278,7 @@ public class Printer extends CordovaPlugin {
                 }
 
                 pm.getInstance().print(docName, adapter, builder.build());
+                view = null;
             }
         });
     }
@@ -299,8 +300,6 @@ public class Printer extends CordovaPlugin {
                 PluginResult.Status.OK, job.isCompleted());
 
         command.sendPluginResult(res);
-
-        view = null;
     }
 
     /**

src/android/ext/PrinterDiscoverySession.java

@@ -72,7 +72,7 @@ public final class PrinterDiscoverySession {
      * @param session An instance of type
      *                android.print.PrinterDiscoverySession
      */
-    public PrinterDiscoverySession (Object session) {
+    PrinterDiscoverySession(Object session) {
         this.session = session;
     }
 
@@ -89,7 +89,7 @@ public final class PrinterDiscoverySession {
     /**
      * Stop discovering printers.
      */
-    public final void stopPrinterDiscovery() {
+    private void stopPrinterDiscovery() {
         Meta.invokeMethod(session, "stopPrinterDiscovery");
     }
 
@@ -151,7 +151,7 @@ public final class PrinterDiscoverySession {
      * @return List of their basic infos
      */
     @SuppressWarnings("unchecked")
-    public final List<PrinterInfo> getPrinters() {
+    private List<PrinterInfo> getPrinters() {
         Method method = Meta.getMethod(session.getClass(), "getPrinters");
 
         return (List<PrinterInfo>) Meta.invokeMethod(session, method);