Prevent crash when turning screen during trip search

Closes #204

.travis.yml

@@ -1,11 +1,11 @@
 language: android
-before_script: ./pre-build.sh && sed -i "s#gradle:2.1.0#gradle:1.5.0#" build.gradle
+before_script: ./pre-build.sh && sed -i "s#gradle:2.1.2#gradle:1.5.0#" build.gradle
 jdk: openjdk7
 android:
   components:
     - tools
     - build-tools-23.0.2
-    - android-23
+    - android-24
     - extra-android-m2repository
 script: gradle build connectedCheck -PbuildServer
 

res/xml/changelog_master.xml

@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <changelog>
 
+    <release version="1.1.3" versioncode="37">
+        <change>Remember selected means of transports for each network (Thanks kas70!)</change>
+        <change>Prevent crash when turning screen during trip search</change>
+    </release>
+
     <release version="1.1.2" versioncode="36">
         <change>New product icons that are now shown for all lines</change>
         <change>Add button to map that shows current position and follows it</change>

src/de/grobox/liberario/fragments/DirectionsFragment.java

@@ -292,6 +292,11 @@ public boolean onOptionsItemSelected(MenuItem item) {
 
 	@Override
 	public void onTripRetrieved(QueryTripsResult result) {
+		if(getContext() == null) {
+			// FIXME: This is not a proper solution, we need to use a loader instead
+			return;
+		}
+
 		if(result.status == QueryTripsResult.Status.OK && result.trips != null && result.trips.size() > 0) {
 			Log.d(getClass().getSimpleName(), result.toString());