Fix to allow cross process cursors to work with sqlcipher

src/info/guardianproject/database/CrossProcessCursorWrapper.java

@@ -0,0 +1,58 @@
+package info.guardianproject.database;
+
+import android.database.Cursor;
+import android.database.CrossProcessCursor;
+import android.database.CursorWindow;
+import android.database.CursorWrapper;
+
+public class CrossProcessCursorWrapper extends CursorWrapper implements CrossProcessCursor {
+
+    public CrossProcessCursorWrapper(Cursor cursor) {
+        super(cursor);
+    }
+
+    @Override
+    public CursorWindow getWindow() {
+        return null;
+    }
+
+    @Override
+    public void fillWindow(int position, CursorWindow window) {
+        if (position < 0 || position > getCount()) {
+            return;
+        }
+        window.acquireReference();
+        try {
+            moveToPosition(position - 1);
+            window.clear();
+            window.setStartPosition(position);
+            int columnNum = getColumnCount();
+            window.setNumColumns(columnNum);
+            while (moveToNext() && window.allocRow()) {
+                for (int i = 0; i < columnNum; i++) {
+                    String field = getString(i);
+                    if (field != null) {
+                        if (!window.putString(field, getPosition(), i)) {
+                            window.freeLastRow();
+                            break;
+                        }
+                    } else {
+                        if (!window.putNull(getPosition(), i)) {
+                            window.freeLastRow();
+                            break;
+                        }
+                    }
+                }
+            }
+        } catch (IllegalStateException e) {
+            // simply ignore it
+        } finally {
+            window.releaseReference();
+        }
+    }
+
+    @Override
+    public boolean onMove(int oldPosition, int newPosition) {
+        return true;
+    }
+}

src/info/guardianproject/database/sqlcipher/SQLiteDatabase.java

@@ -16,6 +16,7 @@
 
 package info.guardianproject.database.sqlcipher;
 
+import info.guardianproject.database.CrossProcessCursorWrapper;
 import info.guardianproject.database.DatabaseUtils;
 import info.guardianproject.database.SQLException;
 import info.guardianproject.database.sqlcipher.SQLiteDebug.DbStats;
@@ -1418,7 +1419,7 @@ public Cursor rawQueryWithFactory(
                 }
             }
         }
-        return cursor;
+        return new CrossProcessCursorWrapper(cursor);
     }
 
     /**