diff --git a/class/HPGrowingTextView.h b/class/HPGrowingTextView.h
index 0a8a250..6ad8c2a 100644
--- a/class/HPGrowingTextView.h
+++ b/class/HPGrowingTextView.h
@@ -80,19 +80,19 @@
 }
 
 //real class properties
-@property int maxNumberOfLines;
-@property int minNumberOfLines;
+@property (nonatomic) int maxNumberOfLines;
+@property (nonatomic) int minNumberOfLines;
 @property (nonatomic) int maxHeight;
 @property (nonatomic) int minHeight;
-@property BOOL animateHeightChange;
-@property NSTimeInterval animationDuration;
+@property (nonatomic) BOOL animateHeightChange;
+@property (nonatomic) NSTimeInterval animationDuration;
 @property (nonatomic, strong) NSString *placeholder;
 @property (nonatomic, strong) UIColor *placeholderColor;
 @property (nonatomic, strong) UITextView *internalTextView;	
 
 
 //uitextview properties
-@property(unsafe_unretained) NSObject<HPGrowingTextViewDelegate> *delegate;
+@property(nonatomic, unsafe_unretained) NSObject<HPGrowingTextViewDelegate> *delegate;
 @property(nonatomic,strong) NSString *text;
 @property(nonatomic,strong) UIFont *font;
 @property(nonatomic,strong) UIColor *textColor;
diff --git a/class/HPGrowingTextView.m b/class/HPGrowingTextView.m
index 190dbd4..a781cdc 100644
--- a/class/HPGrowingTextView.m
+++ b/class/HPGrowingTextView.m
@@ -82,7 +82,7 @@ -(void)commonInitialiser
     internalTextView.text = @"-";
     [self addSubview:internalTextView];
     
-    minHeight = internalTextView.frame.size.height;
+    minHeight = (int)internalTextView.frame.size.height;
     minNumberOfLines = 1;
     
     animateHeightChange = YES;
@@ -151,7 +151,7 @@ -(void)setMaxNumberOfLines:(int)n
     
     internalTextView.text = newText;
     
-    maxHeight = [self measureHeight];
+    maxHeight = (int)[self measureHeight];
     
     internalTextView.text = saveText;
     internalTextView.hidden = NO;
@@ -188,7 +188,7 @@ -(void)setMinNumberOfLines:(int)m
     
     internalTextView.text = newText;
     
-    minHeight = [self measureHeight];
+    minHeight = (int)[self measureHeight];
     
     internalTextView.text = saveText;
     internalTextView.hidden = NO;
@@ -238,7 +238,7 @@ - (void)textViewDidChange:(UITextView *)textView
 - (void)refreshHeight
 {
 	//size of content, so we can set the frame of self
-	NSInteger newSizeH = [self measureHeight];
+	NSInteger newSizeH = (int)[self measureHeight];
 	if(newSizeH < minHeight || !internalTextView.hasText) newSizeH = minHeight; //not smalles than minHeight
   if (internalTextView.frame.size.height > maxHeight) newSizeH = maxHeight; // not taller than maxHeight