offline: workaround against crashes in fragment refreshes

2 files changed, 26 insertions, 14 deletions

diff --git a/src/org/fox/ttrss/offline/OfflineFeedsFragment.java b/src/org/fox/ttrss/offline/OfflineFeedsFragment.java
index a2231485..839f22df 100644
--- a/src/org/fox/ttrss/offline/OfflineFeedsFragment.java
+++ b/src/org/fox/ttrss/offline/OfflineFeedsFragment.java
@@ -121,13 +121,19 @@ public class OfflineFeedsFragment extends Fragment implements OnItemClickListene
 	}
 	
 	public void refresh() {
-		if (m_cursor != null && !m_cursor.isClosed()) m_cursor.close();
-		
-		m_cursor = createCursor();
-		
-		if (m_cursor != null) {
-			m_adapter.changeCursor(m_cursor);
-			m_adapter.notifyDataSetChanged();
+		try {
+			if (!isAdded()) return;
+			
+			if (m_cursor != null && !m_cursor.isClosed()) m_cursor.close();
+			
+			m_cursor = createCursor();
+			
+			if (m_cursor != null && m_adapter != null) {
+				m_adapter.changeCursor(m_cursor);
+				m_adapter.notifyDataSetChanged();
+			}
+		} catch (NullPointerException e) {
+			e.printStackTrace();
 		}
 	}
 	
diff --git a/src/org/fox/ttrss/offline/OfflineHeadlinesFragment.java b/src/org/fox/ttrss/offline/OfflineHeadlinesFragment.java
index 9ee61684..0eeeee6f 100644
--- a/src/org/fox/ttrss/offline/OfflineHeadlinesFragment.java
+++ b/src/org/fox/ttrss/offline/OfflineHeadlinesFragment.java
@@ -256,13 +256,19 @@ public class OfflineHeadlinesFragment extends Fragment implements OnItemClickLis
 	}
 	
 	public void refresh() {
-		if (m_cursor != null && !m_cursor.isClosed()) m_cursor.close();
-		
-		m_cursor = createCursor();
-		
-		if (m_cursor != null) {
-			m_adapter.changeCursor(m_cursor);
-			m_adapter.notifyDataSetChanged();
+		try {
+			if (!isAdded()) return;
+			
+			if (m_cursor != null && !m_cursor.isClosed()) m_cursor.close();
+			
+			m_cursor = createCursor();
+			
+			if (m_cursor != null && m_adapter != null) {
+				m_adapter.changeCursor(m_cursor);
+				m_adapter.notifyDataSetChanged();
+			}
+		} catch (NullPointerException e) {
+			e.printStackTrace();
 		}
 	}