fix KVO crash. close #1631

jessesquires · jessesquires · commit e630340c481f · 2016-06-05T16:21:57.000-07:00
diff --git a/JSQMessagesViewController/Controllers/JSQMessagesKeyboardController.m b/JSQMessagesViewController/Controllers/JSQMessagesKeyboardController.m
@@ -39,7 +39,7 @@ @interface JSQMessagesKeyboardController () <UIGestureRecognizerDelegate>
 
 @property (assign, nonatomic) BOOL jsq_isObserving;
 
-@property (weak, nonatomic) UIView *keyboardView;
+@property (strong, nonatomic) UIView *keyboardView;
 
 @end
 
