完善autolayout高度自适应处理

TYAttributedLabelDemo/TYAttributedLabel/NSMutableAttributedString+TY.m

@@ -41,7 +41,7 @@ - (void)addAttributeFont:(UIFont *)font range:(NSRange)range
     {
         [self removeAttribute:(NSString*)kCTFontAttributeName range:range];
 
-        CTFontRef fontRef = CTFontCreateWithName((CFStringRef)font.fontName, font.pointSize, nil);
+        CTFontRef fontRef = CTFontCreateWithName((CFStringRef)font.familyName, font.pointSize, nil);
         if (nil != fontRef)
         {
             [self addAttribute:(NSString *)kCTFontAttributeName value:(__bridge id)fontRef range:range];

TYAttributedLabelDemo/TYAttributedLabel/TYAttributedLabel.m

@@ -54,7 +54,9 @@ @interface TYAttributedLabel ()<UIGestureRecognizerDelegate>
 @property (nonatomic, strong) UIColor *saveLinkColor;
 @end
 
-@implementation TYAttributedLabel
+@implementation TYAttributedLabel {
+    CGFloat _autoLayoutWidth;
+}
 
 #pragma mark - init
 
@@ -88,7 +90,7 @@ - (instancetype)initWithTextContainer:(TYTextContainer *)textContainer
 - (void)setupProperty
 {
     if (self.backgroundColor == nil) {
-        self.backgroundColor = [UIColor whiteColor];
+        self.backgroundColor = [UIColor clearColor];
     }
     self.userInteractionEnabled = YES;
     _highlightedLinkColor = nil;
@@ -166,9 +168,9 @@ - (void)drawRect:(CGRect)rect {
         default:
             break;
     }
-
+    
     CGFloat contextHeight = MAX(CGRectGetHeight(self.bounds) , _textContainer.textHeight);
-    //	跟很多底层 API 一样，Core Text 使用 Y翻转坐标系统，而且内容的呈现也是上下翻转的，所以需要通过转换内容将其翻转
+    //    跟很多底层 API 一样，Core Text 使用 Y翻转坐标系统，而且内容的呈现也是上下翻转的，所以需要通过转换内容将其翻转
     CGContextRef context = UIGraphicsGetCurrentContext();
     CGContextSetTextMatrix(context, CGAffineTransformIdentity);
     CGContextTranslateCTM(context, 0, contextHeight + verticalOffset);
@@ -187,7 +189,7 @@ - (void)drawRect:(CGRect)rect {
 
 // this code quote M80AttributedLabel
 - (void)drawText: (NSAttributedString *)attributedString
-            frame:(CTFrameRef)frame
+           frame:(CTFrameRef)frame
             rect: (CGRect)rect
          context: (CGContextRef)context
 {
@@ -369,14 +371,14 @@ - (void)longPress:(UILongPressGestureRecognizer *)sender
     __typeof (self) __weak weakSelf = self;
     bool didPressContainer = [_textContainer enumerateRunRectContainPoint:point viewHeight:CGRectGetHeight(self.frame) successBlock:^(id<TYTextStorageProtocol> textStorage){
         if (_delegateFlags.textStorageLongPressedOnStateAtPoint) {
-                [weakSelf.delegate attributedLabel:weakSelf textStorageLongPressed:textStorage onState:sender.state atPoint:point];
+            [weakSelf.delegate attributedLabel:weakSelf textStorageLongPressed:textStorage onState:sender.state atPoint:point];
         }
     }];
     // 非响应容器区域响应长按事件
     if (didPressContainer == NO && [weakSelf respondsToSelector:@selector(attributedLabel:lableLongPressOnState:atPoint:)]) {
         [weakSelf.delegate attributedLabel:weakSelf lableLongPressOnState:sender.state atPoint:point];
     }
-
+    
 }
 
 #pragma mark - touches action
@@ -395,7 +397,7 @@ - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
             found = YES;
         }];
     }
-
+    
     if (!found) {
         [super touchesBegan:touches withEvent:event];
     }
@@ -581,9 +583,9 @@ - (void)fillSelectionAreaInRect:(CGRect)rect radius:(CGFloat)radius bgColor:(UIC
     CGContextSetFillColorWithColor(context, bgColor.CGColor);
     CGContextDrawPath(context, kCGPathFill);
 
-//    CGContextRef context = UIGraphicsGetCurrentContext();
-//    CGContextSetFillColorWithColor(context, bgColor.CGColor);
-//    CGContextFillRect(context, rect);
+    //    CGContextRef context = UIGraphicsGetCurrentContext();
+    //    CGContextSetFillColorWithColor(context, bgColor.CGColor);
+    //    CGContextFillRect(context, rect);
 }
 
 #pragma mark - get Right Height
@@ -618,7 +620,7 @@ - (void)setPreferredMaxLayoutWidth:(CGFloat)preferredMaxLayoutWidth
 
 - (CGSize)intrinsicContentSize
 {
-    return [self getSizeWithWidth:_preferredMaxLayoutWidth];
+    return [self getSizeWithWidth:(_preferredMaxLayoutWidth == 0 ? _autoLayoutWidth : _preferredMaxLayoutWidth)];
 }
 
 #pragma mark - set right frame
@@ -798,6 +800,15 @@ - (void)setIsWidthToFit:(BOOL)isWidthToFit
     [_textContainer setIsWidthToFit:isWidthToFit];
 }
 
+- (void)layoutSubviews {
+    if (_preferredMaxLayoutWidth == 0 &&
+        _autoLayoutWidth != CGRectGetWidth(self.frame)) {
+        _autoLayoutWidth = CGRectGetWidth(self.frame);
+        [self invalidateIntrinsicContentSize];
+    }
+    [super layoutSubviews];
+}
+
 @end
 
 #pragma mark - append attributedString

TYAttributedLabelDemo/TYAttributedLabel/TYTextContainer.m

@@ -97,9 +97,9 @@ - (NSAttributedString *)createAttributedString
 #pragma mark - setter
 - (void)setupProperty
 {
-    _font = [UIFont systemFontOfSize:15];
-    _characterSpacing = 1;
-    _linesSpacing = 2;
+    _font = [UIFont systemFontOfSize:17];
+    _characterSpacing = 0;
+    _linesSpacing = 0;
     _paragraphSpacing = 0;
     _textAlignment = kCTLeftTextAlignment;
     _lineBreakMode = kCTLineBreakByCharWrapping;

TYAttributedLabelDemo/TYAttributedLabel/TYViewStorage.m

@@ -45,6 +45,14 @@ - (void)drawStorageWithRect:(CGRect)rect
     // 设置frame 注意 转换rect  CoreText context coordinates are the opposite to UIKit so we flip the bounds
     CGAffineTransform transform =  CGAffineTransformScale(CGAffineTransformMakeTranslation(0, _superView.bounds.size.height), 1.f, -1.f);
     rect = CGRectApplyAffineTransform(rect, transform);
+
+    //iOS 9 以上系统兼容 RTL 排版方向
+    if ([[UIDevice currentDevice].systemVersion floatValue] >= 9.0) {
+        if (UIUserInterfaceLayoutDirectionRightToLeft == [UIView userInterfaceLayoutDirectionForSemanticContentAttribute:_superView.semanticContentAttribute]) {
+            rect.origin.x = rect.origin.x - rect.size.width;
+        }
+    }
+
     [_view setFrame:rect];
     [_superView addSubview:_view];
 }