1、案例如图

2、代码

TextKit02ViewController.h

#import 
     
      @interface TextKit02ViewController : UIViewController@property (nonatomic,strong) IBOutlet UITextView *textView;@property (nonatomic,weak) IBOutlet UIImageView *imageView;// 文本可以排版的区域@property (nonatomic,strong) NSTextContainer *textContainer;@end
     

TextKit02ViewController.m

#import "TextKit02ViewController.h"@interface TextKit02ViewController ()@end@implementation TextKit02ViewController- (void)viewDidLoad{    [super viewDidLoad];    CGRect textViewRect = CGRectInset(self.view.bounds, 10.0, 20.0);        // 1、创建储存文本对象textStorage    NSTextStorage *textStorage = [[NSTextStorage alloc] initWithString:self.textView.text];        // 2、创建文字排版对象layoutManager    NSLayoutManager *layoutManager = [[NSLayoutManager alloc] init];        // 3、创建文本排版的区域textContainer    self.textContainer = [[NSTextContainer alloc] initWithSize:textViewRect.size];        // 4、设置textStorage与layoutManager的关系    [textStorage addLayoutManager:layoutManager];        // 5、设置layoutManager与textContainer的关系    [layoutManager addTextContainer:self.textContainer];        // 6、重新构建原来控制器视图    [self.textView removeFromSuperview];    self.textView = [[UITextView alloc] initWithFrame:textViewRect textContainer:self.textContainer];    [self.view insertSubview:self.textView belowSubview:self.imageView];        // 7、设置textStorage中文本的风格    [textStorage beginEditing];        NSDictionary *attrsDic = @{NSTextEffectAttributeName:NSTextEffectLetterpressStyle};    NSMutableAttributedString *attrStr = [[NSMutableAttributedString alloc] initWithString:self.textView.text attributes:attrsDic];    [textStorage setAttributedString:attrStr];        [textStorage endEditing];        // 8、环绕路径    self.textView.textContainer.exclusionPaths = @[[self translatedBezierPath]];   }- (UIBezierPath *)translatedBezierPath{    CGRect imageRect = [self.textView convertRect:self.imageView.frame fromView:self.view];    UIBezierPath *newPath = [UIBezierPath bezierPathWithRect:imageRect];    return newPath;}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end