iOS学笔记本45- TTTAttributedLabel 使用方法

TTTAttributedLabel 库地址 https://github.com/TTTAttributedLabel/TTTAttributedLabel
#import "ViewController.h"

@interface ViewController () <TTTAttributedLabelDelegate, UIActionSheetDelegate>

@end

@implementation ViewController

static inline NSRegularExpression * NameRegularExpression() {

static NSRegularExpression *_nameRegularExpression = nil;

static dispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

_nameRegularExpression = [[NSRegularExpression alloc] initWithPattern:@"^\\w+" options:NSRegularExpressionCaseInsensitive error:nil];

});

return _nameRegularExpression;

}

- (void)viewDidLoad {

[super viewDidLoad];

TTTAttributedLabel *label = [[TTTAttributedLabel alloc] initWithFrame:CGRectMake(100, 120, 120, 60)];

label.font = [UIFont systemFontOfSize:14];

label.textColor = [UIColor blackColor];

label.lineBreakMode = NSLineBreakByCharWrapping;

label.numberOfLines = 0;

//设置高亮颜色

label.highlightedTextColor = [UIColor greenColor];

//检测url

label.enabledTextCheckingTypes = NSTextCheckingTypeLink;

//对齐方式

label.verticalAlignment = TTTAttributedLabelVerticalAlignmentCenter;

//行间距

label.lineSpacing = 8;

//设置阴影

label.shadowColor = [UIColor grayColor];

label.delegate = self; // Delegate

//NO 不显示下划线

label.linkAttributes = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO] forKey:(NSString *)kCTUnderlineStyleAttributeName];

NSString *text = @"冷清风 赞了 王战 的说说";

[label setText:text afterInheritingLabelAttributesAndConfiguringWithBlock:^ NSMutableAttributedString *(NSMutableAttributedString*mutableAttributedString)

{

//设置可点击文字的范围

NSRange boldRange = [[mutableAttributedString string] rangeOfString:@"冷清风" options:NSCaseInsensitiveSearch];

//设定可点击文字的的大小

UIFont *boldSystemFont = [UIFont boldSystemFontOfSize:16];

CTFontRef font = CTFontCreateWithName((__bridge CFStringRef)boldSystemFont.fontName, boldSystemFont.pointSize, NULL);

if (font) {

//设置可点击文本的大小

[mutableAttributedString addAttribute:(NSString *)kCTFontAttributeName value:(__bridge id)font range:boldRange];

//设置可点击文本的颜色

[mutableAttributedString addAttribute:(NSString*)kCTForegroundColorAttributeName value:(id)[[UIColor blueColor] CGColor] range:boldRange];

CFRelease(font);

}

return mutableAttributedString;

}];

//正则

NSRegularExpression *regexp = NameRegularExpression();

NSRange linkRange = [regexp rangeOfFirstMatchInString:text options:0 range:NSMakeRange(0, 3)];

NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://www.exiucai.com/"]];

//设置链接的url

[label addLinkToURL:url withRange:linkRange];

[self.view addSubview:label];

}

- (void)attributedLabel:(__unused TTTAttributedLabel *)label

didSelectLinkWithURL:(NSURL *)url

{

[[[UIActionSheet alloc] initWithTitle:[url absoluteString] delegate:self cancelButtonTitle:NSLocalizedString(@"Cancel", nil) destructiveButtonTitle:nilotherButtonTitles:NSLocalizedString(@"Open
Link in Safari", nil), nil] showInView:self.view];

}

#pragma mark - UIActionSheetDelegate

- (void)actionSheet:(UIActionSheet *)actionSheet

clickedButtonAtIndex:(NSInteger)buttonIndex

{

if (buttonIndex == actionSheet.cancelButtonIndex) {

return;

}

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:actionSheet.title]];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}