From 91a8186e54fac9fb3a2f8e8c339af94a4a3d9f94 Mon Sep 17 00:00:00 2001
From: James Cotton <peabody124@gmail.com>
Date: Fri, 10 Aug 2012 02:01:27 -0500
Subject: [PATCH] AndroidGCS: Because right now the object updated callbacks
 are not diconnected when an activity goes away we need to check the view is
 valid when processing the object callbacks.

---
 .../androidgcs/fragments/SystemAlarmsFragment.java     | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/androidgcs/src/org/openpilot/androidgcs/fragments/SystemAlarmsFragment.java b/androidgcs/src/org/openpilot/androidgcs/fragments/SystemAlarmsFragment.java
index e311e7249..1bcbfee63 100644
--- a/androidgcs/src/org/openpilot/androidgcs/fragments/SystemAlarmsFragment.java
+++ b/androidgcs/src/org/openpilot/androidgcs/fragments/SystemAlarmsFragment.java
@@ -30,6 +30,7 @@ import org.openpilot.uavtalk.UAVObject;
 import org.openpilot.uavtalk.UAVObjectField;
 import org.openpilot.uavtalk.UAVObjectManager;
 
+import android.app.Activity;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.LayoutInflater;
@@ -72,7 +73,16 @@ public class SystemAlarmsFragment extends ObjectManagerFragment {
 		if (DEBUG)
 			Log.d(TAG, "Updated");
 		if (obj.getName().compareTo("SystemAlarms") == 0) {
+			Activity activity = getActivity();
+			if (activity == null) {
+				// TODO: Need to unregister all the callbacks
+				return;
+			}
 			TextView alarms = (TextView) getActivity().findViewById(R.id.system_alarms_fragment_field);
+			if (alarms == null) {
+				// TODO: Need to figure out how to unregister all the callbacks
+				return;
+			}
 			UAVObjectField a = obj.getField("Alarm");
 			List<String> names = a.getElementNames();
 			String contents = new String();