EMDK race condition

a.patch

diff --git a/app/src/main/java/com/symbol/barcodesample1/MainActivity.java b/app/src/main/java/com/symbol/barcodesample1/MainActivity.java
index bdfaa30..1409d63 100644
--- a/app/src/main/java/com/symbol/barcodesample1/MainActivity.java
+++ b/app/src/main/java/com/symbol/barcodesample1/MainActivity.java
@@ -516,13 +516,21 @@ public class MainActivity extends Activity implements EMDKListener, DataListener
 				scanner.addDataListener(this);
 				scanner.addStatusListener(this);
 
+				new AsyncEnable().execute(scanner);
+			}
+		}
+	}
+
+	private static final class AsyncEnable extends AsyncTask<Scanner, Void, Void> {
+		@Override
+		protected Void doInBackground(final Scanner... params) {
 			try {
-					scanner.enable();
+				params[0].enable();
 			} catch (ScannerException e) {
-				
-					textViewStatus.setText("Status: " + e.getMessage());
-				}
+				e.printStackTrace();
+				throw new RuntimeException(e);
 			}
+			return null;
 		}
 	}

MainActivity.java

			if (scanner != null) {
			
				scanner.addDataListener(this);
				scanner.addStatusListener(this);

				new AsyncEnable().execute(scanner);
			}
		}
	}

	private static final class AsyncEnable extends AsyncTask<Scanner, Void, Void> {
		@Override
		protected Void doInBackground(final Scanner... params) {
			try {
				params[0].enable();
			} catch (ScannerException e) {
				e.printStackTrace();
				throw new RuntimeException(e);
			}
			return null;
		}
	}

	private void deInitScanner() {