Redraw card info when launched by a shortcut

When a shortcut launches the view activity, if the activity
already exists it will get onNewIntent() called. This needs to
clear out the view items so the next card will be redrawn.

app/src/main/java/protect/card_locker/LoyaltyCardViewActivity.java

@@ -65,6 +65,18 @@ public class LoyaltyCardViewActivity extends AppCompatActivity
 
     DBHelper db;
 
+    private void extractIntentFields(Intent intent)
+    {
+        final Bundle b = intent.getExtras();
+        loyaltyCardId = b != null ? b.getInt("id") : 0;
+        updateLoyaltyCard = b != null && b.getBoolean("update", false);
+        viewLoyaltyCard = b != null && b.getBoolean("view", false);
+
+        Log.d(TAG, "View activity: id=" + loyaltyCardId
+                + ", updateLoyaltyCard=" + Boolean.toString(updateLoyaltyCard)
+                + ", viewLoyaltyCard=" + Boolean.toString(viewLoyaltyCard));
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState)
     {
@@ -79,14 +91,7 @@ protected void onCreate(Bundle savedInstanceState)
             actionBar.setDisplayHomeAsUpEnabled(true);
         }
 
-        final Bundle b = getIntent().getExtras();
-        loyaltyCardId = b != null ? b.getInt("id") : 0;
-        updateLoyaltyCard = b != null && b.getBoolean("update", false);
-        viewLoyaltyCard = b != null && b.getBoolean("view", false);
-
-        Log.d(TAG, "View activity: id=" + loyaltyCardId
-                + ", updateLoyaltyCard=" + Boolean.toString(updateLoyaltyCard)
-                + ", viewLoyaltyCard=" + Boolean.toString(viewLoyaltyCard));
+        extractIntentFields(getIntent());
 
         db = new DBHelper(this);
 
@@ -109,6 +114,19 @@ protected void onCreate(Bundle savedInstanceState)
         enterButton = (Button) findViewById(R.id.enterButton);
     }
 
+    @Override
+    public void onNewIntent(Intent intent)
+    {
+        Log.i(TAG, "Received new intent");
+        extractIntentFields(intent);
+
+        // Reset these fields, so they are re-populated in onResume().
+        storeFieldEdit.setText("");
+        noteFieldEdit.setText("");
+        cardIdFieldView.setText("");
+        barcodeTypeField.setText("");
+    }
+
     @Override
     public void onResume()
     {