一,效果图。
二,工程图。
三,代码。
RootViewController.h
#import <UIKit/UIKit.h> @interface RootViewController : UIViewController @end
RootViewController.m
#import "RootViewController.h" @interface RootViewController () @end @implementation RootViewController - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. //初始化界面 [self addView]; } #pragma -mark -functions //初始化界面 -(void)addView { //文字 UILabel *dataLabel = [[UILabel alloc] init]; dataLabel.backgroundColor = [UIColor orangeColor]; dataLabel.text = @"我是文字文字文字文字文字文字文字文字文字文字文字11111111111111111111111111111111111"; dataLabel.textColor = [UIColor redColor]; dataLabel.font = [UIFont fontWithName:@"Arial" size:14]; dataLabel.numberOfLines = 0; [self.view addSubview:dataLabel]; //富文本设置文字行间距 NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init]; paragraphStyle.lineSpacing = 4; NSDictionary *attributes = @{ NSFontAttributeName:[UIFont systemFontOfSize:14], NSParagraphStyleAttributeName:paragraphStyle}; dataLabel.attributedText = [[NSAttributedString alloc]initWithString:dataLabel.text attributes:attributes]; //获取设置文本间距以后的高度 CGRect fram = [dataLabel.attributedText boundingRectWithSize:CGSizeMake(210, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin context:nil]; dataLabel.frame=CGRectMake(50, 100, 210, fram.size.height); } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. }
时间: 2024-08-07 08:59:36