Fixes scrollView.contentSize resizing

VENTokenField/VENTokenField.m

@@ -64,18 +64,32 @@ - (void)awakeFromNib
     [self setUpInit];
 }
 
+#pragma mark - UIResponder
+
+- (BOOL)canBecomeFirstResponder
+{
+    return [self.inputTextField canBecomeFirstResponder];
+}
+
 - (BOOL)becomeFirstResponder
 {
     [self reloadData];
     [self inputTextFieldBecomeFirstResponder];
     return YES;
 }
 
+- (BOOL)canResignFirstResponder
+{
+    return [self.inputTextField canResignFirstResponder];
+}
+
 - (BOOL)resignFirstResponder
 {
     return [self.inputTextField resignFirstResponder];
 }
 
+#pragma mark - Setup
+
 - (void)setUpInit
 {
     // Set up default values.
@@ -127,15 +141,7 @@ - (void)reloadData
 
     self.tokens = [NSMutableArray array];
 
-    CGFloat currentX = 0;
-    CGFloat currentY = 0;
-
-    [self layoutToLabelInView:self.scrollView origin:CGPointZero currentX:&currentX];
-    [self layoutTokensWithCurrentX:&currentX currentY:&currentY];
-    [self layoutInputTextFieldWithCurrentX:&currentX currentY:&currentY];
-
-    [self adjustHeightForCurrentY:currentY];
-    [self.scrollView setContentSize:CGSizeMake(self.scrollView.contentSize.width, currentY + [self heightForToken])];
+    [self commitLayoutSubviews];
 
     [self updateInputTextField];
 
@@ -187,6 +193,33 @@ - (NSString *)inputText
 
 #pragma mark - View Layout
 
+- (void)layoutSubviews
+{
+    [super layoutSubviews];
+
+    [self commitLayoutSubviews];
+}
+
+- (void)commitLayoutSubviews
+{
+
+    self.scrollView.contentSize = CGSizeMake(CGRectGetWidth(self.frame) - self.horizontalInset * 2, CGRectGetHeight(self.frame) - self.verticalInset * 2);
+    self.scrollView.contentInset = UIEdgeInsetsMake(self.verticalInset,
+                                                    self.horizontalInset,
+                                                    self.verticalInset,
+                                                    self.horizontalInset);
+
+    CGFloat currentX = 0;
+    CGFloat currentY = 0;
+
+    [self layoutToLabelInView:self.scrollView origin:CGPointZero currentX:&currentX];
+    [self layoutTokensWithCurrentX:&currentX currentY:&currentY];
+    [self layoutInputTextFieldWithCurrentX:&currentX currentY:&currentY];
+
+    [self adjustHeightForCurrentY:currentY];
+    [self.scrollView setContentSize:CGSizeMake(self.scrollView.contentSize.width, currentY + [self heightForToken])];
+}
+
 - (void)layoutScrollView
 {
     self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.frame), CGRectGetHeight(self.frame))];