UILabel点击调用电话以及邮箱，UILabel超链接效果 NSMutableAttributedString文本样式设置

#import <UIKit/UIKit.h>
typedef enum{
TEL_TYPE,
EMAIL_TYPE,
LINK_TYPE
}TextType;

typedef void(^TapLinkBlack)(TextType type, NSString *text, NSURL *url);

@interface LinkLabel : UILabel

/**
设置显示内容
*/
@property(nonatomic ,strong)NSString *title;

/**
网址链接
*/
@property(nonatomic ,strong)NSString *url;

@property(nonatomic ,copy)TapLinkBlack linkBlack;

/**
设置点击打开网页

@param title 显示标题
@param url 要打开的的链接
*/
-(void)setUrlWithTitle:(NSString *)title url:(NSString *)url;

@end

#import "LinkLabel.h"

//判断字符串是否为空
#define isNil(string) ([string isEqual:[NSNull null]] || string == nil || [string isEqualToString:@""] ||[string isEqualToString:@"<null>"] || [string isEqualToString:@"(null)"])?(YES):(NO)

@interface LinkLabel()

@end

@implementation LinkLabel

-(id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
self.userInteractionEnabled = YES;
[self addGestureRecognizer:[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(topAction)]];
}
return self;
}

/**
重写set方法

@param title 显示内容
*/
-(void)setTitle:(NSString *)title
{
if (!isNil(title)) {
_title = title;
if ([self checkTelNumber:title]) {
self.attributedText = [self setAttributedString:title];
}else if ([self validateEmail:title]){
self.attributedText = [self setAttributedString:title];
}else{
self.text = title;
}
}
}

/**
设置点击打开网页

@param title 显示标题
@param url 要打开的的链接
*/
-(void)setUrlWithTitle:(NSString *)title url:(NSString *)url
{
if (!isNil(url)) {
_url = url;
if (!isNil(title)) {
_title = title;
self.attributedText = [self setAttributedString:_title];
}
}else{
_url = @"";
_title = title;
self.text = title;
}
}

/**
设置链接显示样式

@param title 显示内容
@return 返回链接样式文本
*/
-(NSMutableAttributedString *)setAttributedString:(NSString *)title
{
NSRange range = NSMakeRange(0, title.length);
NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:title];
//设置下划线
[attribtStr addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:range];
//字体颜色
[attribtStr addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:range];
return attribtStr;
}

//手机号码验证
-(BOOL)checkTelNumber:(NSString *)telNumber
{
NSString *MOBILE = @"^1(3[0-9]|4[57]|5[0-35-9]|8[0-9]|7[06-8])\\d{8}$";
NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];
return [regextestmobile evaluateWithObject:telNumber];
}

//正则表达式判断邮箱
-(BOOL)validateEmail:(NSString *)email
{
NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:email];
}

//验证URL
-(BOOL)checkURL:(NSString*)url
{
NSString*pattern =@"http(s)?://([\\w-]+\\.)+[\\w-]+(/[\\w- ./?%&=]*)?";
NSPredicate*pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",pattern];
BOOL isMatch = [pred evaluateWithObject:url];
return isMatch;
}

//点击事件
-(void)topAction
{
if (!isNil(_url)) {
if ([self checkURL:_url]) {
NSURL *url = [NSURL URLWithString:_url];
if (_linkBlack) {
_linkBlack(LINK_TYPE,_title,url);
}
}
}else if (!isNil(_title)){
if ([self checkTelNumber:_title]) {
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"tel://%@",_title]];
if (_linkBlack) {
_linkBlack(TEL_TYPE,_title,url);
}
}else if ([self validateEmail:_title]){
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"mailto://%@",_title]];
if (_linkBlack) {
_linkBlack(EMAIL_TYPE,_title,url);
}
}
}
}

LinkLabel *titleLabel = [[LinkLabel alloc]initWithFrame: CGRectMake(0, 100, CGRectGetWidth(self.view.frame), 40)];
titleLabel.textAlignment = NSTextAlignmentCenter;
titleLabel.title = @"这只是一个标题";
[self.view addSubview:titleLabel];

LinkLabel *linkLabel = [[LinkLabel alloc]initWithFrame:CGRectMake(0, 200, CGRectGetWidth(self.view.frame), 40)];
linkLabel.textAlignment = NSTextAlignmentCenter;
[linkLabel setUrlWithTitle:@"百度一下" url:@"https://www.baidu.com"];
linkLabel.linkBlack = ^(TextType type, NSString *text, NSURL *url) {
if (type == LINK_TYPE){
WYWebController *webVC = [[WYWebController alloc]init];
webVC.url = [NSString stringWithFormat:@"%@",url];
[self.navigationController pushViewController:webVC animated:YES];
}
};
[self.view addSubview:linkLabel];

LinkLabel *telLabel = [[LinkLabel alloc]initWithFrame:CGRectMake(0, 300, CGRectGetWidth(self.view.frame), 40)];
telLabel.textAlignment = NSTextAlignmentCenter;
telLabel.title = @"18612341234";
telLabel.linkBlack = ^(TextType type, NSString *text, NSURL *url) {
if (type == TEL_TYPE) {
NSLog(@"手机号：%@",text);
//调用系统方法拨号
dispatch_async(dispatch_get_global_queue(0, 0), ^{
if (@available(iOS 10.0, *)) {
[[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil];
} else {
[[UIApplication sharedApplication] openURL:url];
}
});
}
};
[self.view addSubview:telLabel];

LinkLabel *emailLabel = [[LinkLabel alloc]initWithFrame: CGRectMake(0, 400, CGRectGetWidth(self.view.frame), 40)];
emailLabel.textAlignment = NSTextAlignmentCenter;
emailLabel.title = @"18612341234@qq.com";
emailLabel.linkBlack = ^(TextType type, NSString *text, NSURL *url) {
if (type == EMAIL_TYPE) {
NSLog(@"手机号：%@",text);
//调用系统方法拨号
dispatch_async(dispatch_get_global_queue(0, 0), ^{
if (@available(iOS 10.0, *)) {
[[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil];
} else {
[[UIApplication sharedApplication] openURL:url];
}
});
}
};
[self.view addSubview:emailLabel];

点击这里下载Demo