TextField and TextView: support dynamic type

fixed dynamic cell height for text view and calculate height and padding values without using constants;

Author: futuretap

InAppSettingsKit.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
 	s.name                  = 'InAppSettingsKit'
-	s.version               = '3.8.7'
+	s.version               = '3.8.8'
 	s.summary               = 'This iPhone framework allows settings to be in-app in addition to being in the Settings app.'
 
   s.description      = <<-DESC
@@ -16,5 +16,5 @@ InAppSettingsKit (IASK) is an open source solution to easily add in-app settings
 	s.resource_bundles		= {"InAppSettingsKit" => "Sources/InAppSettingsKit/Resources/*"}
 	s.source_files			= "Sources/InAppSettingsKit/**/*.{h,m}"
 	s.frameworks			= "MessageUI", "UIKit"
-	s.ios.deployment_target = '10.0'
+	s.ios.deployment_target = '12.0'
 end

Sources/InAppSettingsKit/Controllers/IASKAppSettingsViewController.m

@@ -1300,8 +1300,8 @@ - (void)textViewDidChange:(IASKTextView *)textView {
 
 - (void)cacheRowHeightForTextView:(IASKTextView *)textView animated:(BOOL)animated {
 	CGFloat maxHeight = self.tableView.bounds.size.height - self.tableView.contentInset.top - self.tableView.contentInset.bottom - 60;
-	CGFloat contentHeight = [textView sizeThatFits:CGSizeMake(textView.frame.size.width, 10000)].height + 16;
-	self.rowHeights[(id)textView.specifier.key] = @(MAX(44, MIN(maxHeight, contentHeight)));
+	CGFloat contentHeight = textView.contentHeight;
+	self.rowHeights[textView.specifier.key] = @(MAX(44, MIN(maxHeight, contentHeight)));
 	textView.scrollEnabled = contentHeight > maxHeight;
 
     void (^actions)(void) = ^{

Sources/InAppSettingsKit/Views/IASKPSTextFieldSpecifierViewCell.m

@@ -27,7 +27,7 @@ - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reus
         // TextField
         _textField = [[IASKTextField alloc] initWithFrame:CGRectMake(0, 0, 200, self.frame.size.height)];
         _textField.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleLeftMargin;
-        _textField.font = [UIFont systemFontOfSize:kIASKLabelFontSize];
+        _textField.font = [UIFont preferredFontForTextStyle:UIFontTextStyleBody];
         _textField.minimumFontSize = kIASKMinimumFontSize;
         [self.contentView addSubview:_textField];
 

Sources/InAppSettingsKit/Views/IASKTextView.m

@@ -85,6 +85,12 @@ - (void)setFrame:(CGRect)frame {
 	[self setNeedsDisplay];
 }
 
+#pragma mark Getters
+
+- (CGFloat)contentHeight {
+	return [self sizeThatFits:CGSizeMake(self.frame.size.width, 10000)].height + self.superview.layoutMargins.top + self.superview.layoutMargins.bottom - 2 * self.textContainer.lineFragmentPadding;
+}
+
 #pragma mark Private Methods
 
 - (void)updateShouldDrawPlaceholder {

Sources/InAppSettingsKit/Views/IASKTextViewCell.m

@@ -30,7 +30,7 @@ - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reus
 		IASKTextView *textView = [[IASKTextView alloc] initWithFrame:CGRectZero];
 		textView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
 		textView.scrollEnabled = NO;
-		textView.font = [UIFont systemFontOfSize:17.0];
+		textView.font = [UIFont preferredFontForTextStyle:UIFontTextStyleBody];
 		textView.backgroundColor = [UIColor clearColor];
 		[self.contentView addSubview:textView];
 
@@ -42,14 +42,11 @@ - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reus
 - (void)layoutSubviews {
 	[super layoutSubviews];
 
-	UIEdgeInsets padding = (UIEdgeInsets) { 0, kIASKPaddingLeft, 0, kIASKPaddingRight };
-	if ([self respondsToSelector:@selector(layoutMargins)]) {
-		padding = self.layoutMargins;
-		padding.left -= 5;
-		padding.right -= 5;
-		padding.top -= 5;
-		padding.bottom -= 5;
-	}
+	UIEdgeInsets padding = self.layoutMargins;
+	padding.left -= self.textView.textContainer.lineFragmentPadding;
+	padding.right -= self.textView.textContainer.lineFragmentPadding;
+	padding.top -= self.textView.textContainer.lineFragmentPadding;
+	padding.bottom -= self.textView.textContainer.lineFragmentPadding;
 
 	self.textView.frame = UIEdgeInsetsInsetRect(self.bounds, padding);
 }

Sources/InAppSettingsKit/include/IASKTextView.h

@@ -20,5 +20,6 @@
 
 @property (strong, nonatomic) IASKSpecifier *specifier;
 @property (strong, nonatomic) NSString *placeholder;
+@property (nonatomic, readonly) CGFloat contentHeight;
 
 @end