Update readme

README.md

@@ -1,6 +1,10 @@
 SSDynamicText
 =============
 
+# iOS 11 fully covers `SSDynamicText` functionality. Library won't be supported anymore.
+
+---
+
 [![Circle CI](https://circleci.com/gh/splinesoft/SSDynamicText.svg?style=svg)](https://circleci.com/gh/splinesoft/SSDynamicText) [![codecov.io](http://codecov.io/github/splinesoft/SSDynamicText/coverage.svg?branch=master)](http://codecov.io/github/splinesoft/SSDynamicText?branch=master)
 [![Version](https://img.shields.io/cocoapods/v/SSDynamicText.svg)](http://cocoapods.org/pods/SSDynamicText)
 [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
@@ -11,6 +15,63 @@ What's not so neat, though, is that `+[UIFont preferredFontForTextStyle:]` only
 
 SSDynamicText is a collection of simple `UILabel`, `UIButton`, `UITextField`, and `UITextView` subclasses inspired by [this](http://stackoverflow.com/questions/18758227/ios7-can-we-use-other-than-helvetica-neue-fonts-with-dynamic-type/19024944#19024944) SO answer.
 
+iOS 10 added to `UILabel`, `UITextField` and `UITextView` built-in dynamic font size support via [`adjustsFontForContentSizeCategory`](https://developer.apple.com/documentation/uikit/uicontentsizecategoryadjusting), so there's no need to manually update font after content size category change. Sadly accessibility content size categories work only for [`.body`](https://developer.apple.com/documentation/uikit/uifonttextstyle/1616682-body) style.
+
+But finally in iOS 11 Apple introduced  [`UIFontMetrics`](https://developer.apple.com/documentation/uikit/uifontmetrics) which allows to use custom fonts with all content size categories support.
+It's supported by `UILabel` (so `UIButton` as well), `UITextField` and `UITextView`. Works for plain text and `NSAttributedString`.
+
+```objc
+// Plain text
+UIFont *font = [UIFont fontWithName:@"Courier" size:28.0f];
+label.font = [UIFontMetrics.defaultMetrics scaledFontForFont:font];
+label.adjustsFontForContentSizeCategory = YES;
+label.text = @"Plan text";
+
+// Attributed text
+UIFont *biggerFont = [UIFont fontWithName:@"Courier" size:28.0f];
+UIFont *scaledBiggerFont = [[UIFontMetrics metricsForTextStyle:UIFontTextStyleTitle1] scaledFontForFont:biggerFont];
+UIFont *smallerFont = [UIFont fontWithName:@"Courier" size:13.0f];
+UIFont *scaledSmallerFont = [[UIFontMetrics metricsForTextStyle: UIFontTextStyleFootnote] scaledFontForFont:smallerFont];
+
+NSAttributedString *biggerAttributedText = [[NSAttributedString alloc] initWithString:@"Bigger text"
+                                                                           attributes:@{ NSAccessibilityFontTextAttribute : scaledBiggerFont }];
+NSAttributedString *smallerAttributedText = [[NSAttributedString alloc initWithString:@"smaller text"
+                                                                           attributes:@{ NSAccessibilityFontTextAttribute : scaledSmallerFont }];
+
+NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] init];
+[attributedText appendAttributedString:biggerAttributedText];
+[attributedText appendAttributedString:smallerAttributedText];
+
+label.adjustsFontForContentSizeCategory = YES;
+label.attributedText = attributedText;
+```
+
+```swift
+// Plain text
+let font = UIFont(name: "Courier", size: 17.0)!
+label.font = UIFontMetrics.default.scaledFont(for: font)
+label.adjustsFontForContentSizeCategory = true
+label.text = "Plan text"
+
+// Attributed text
+let biggerFont = UIFont(name: "Courier", size: 28.0)!
+let scaledBiggerFont = UIFontMetrics(forTextStyle: .title1).scaledFont(for: biggerFont)
+let smallerFont = UIFont(name: "Courier", size: 13.0)!
+let scaledSmallerFont = UIFontMetrics(forTextStyle: .footnote).scaledFont(for: smallerFont)
+
+let biggerAttributedText = NSAttributedString(string: "Bigger text",
+                                              attributes: [.font: scaledBiggerFont])
+let smallerAttributedText = NSAttributedString(string: "smaller text",
+                                               attributes: [.font: scaledSmallerFont])
+
+let attributedText = NSMutableAttributedString()
+attributedText.append(biggerAttributedText)
+attributedText.append(smallerAttributedText)
+
+label.adjustsFontForContentSizeCategory = true
+label.attributedText = attributedText
+```
+
 ## Requirements
 
 Xcode 7.0+ with iOS 7.0+ SDK.