iOS 条款-UITextView

.h

//
//  HanAgreementView.h
//  
//
//  Created by Han on 2020/1/13.
//  Copyright © 2020 Alibaba. All rights reserved.
//

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

typedef void (^HanAgreementBlock)(NSInteger index,NSString *url);


@class HanAgreementView;
@protocol HanAgreementViewDelegate <NSObject>

-(void)agreementView:(HanAgreementView *)view index:(NSInteger)index url:(NSString *)url;

@end

@class HanAgreementModel;
@interface HanAgreementView : UIView


@property(nonatomic,strong)UIFont *textFont;
@property(nonatomic,strong)UIColor *textColor;
@property(nonatomic, copy)HanAgreementBlock selectBlock;
@property (nonatomic,weak) id<HanAgreementViewDelegate> delegate;


-(instancetype)initWithText:(NSString *)text addModelArray:(NSArray<HanAgreementModel *> *)modelArray;

-(void)setLineSpacing:(CGFloat)height;
@end



@interface HanAgreementModel : NSObject
///要点击的文字
@property (nonatomic, copy) NSString *text;
///要点击文字的URL
@property (nonatomic, copy) NSString *url;
///要点击的文字 颜色  系统默认蓝色  无法修改？？
@property (nonatomic, strong) UIColor *textColor;
///要点击的文字 字体
@property (nonatomic, strong) UIFont *textFont;

@end

NS_ASSUME_NONNULL_END

.m

//
//  HanAgreementView.m
//  
//
//  Created by Han on 2020/1/13.
//  Copyright © 2020 Alibaba. All rights reserved.
//

#import "HanAgreementView.h"
#import "UIColor+Han.h"
#import "HanBaseDefine.h"
@interface HanAgreementView ()<UITextViewDelegate>
@property(nonatomic,copy)NSString *text;
@property(nonatomic,copy)NSArray<HanAgreementModel *> *modelArray;
@property (nonatomic,strong)UITextView *textView;
@property (nonatomic,strong)NSMutableArray *itemArr;
@property (nonatomic,strong)NSMutableAttributedString *contentMString;



@end
@implementation HanAgreementView

-(instancetype)initWithText:(NSString *)text addModelArray:(nonnull NSArray<HanAgreementModel *> *)modelArray{
    if (self = [super init]) {
        self.contentMString = [[NSMutableAttributedString alloc] initWithString:text];
        self.text = text;
        self.modelArray = modelArray;
        
    }
    return self;
}
-(void)layoutSubviews{
    [super layoutSubviews];
    self.textView.frame = self.bounds;
}
-(BOOL)textView:(UITextView *)textView shouldInteractWithURL:(nonnull NSURL *)URL inRange:(NSRange)characterRange interaction:(UITextItemInteraction)interaction API_AVAILABLE(ios(10.0)){
    NSString *url = [URL absoluteString];
    
    if ([self.itemArr containsObject:url]) {
       NSInteger index = [self.itemArr indexOfObject:url];
        HanAgreementModel *mod = self.modelArray[index];
        if (self.selectBlock) {
            self.selectBlock(index,mod.url);
        }
        
        if (self.delegate && [self.delegate respondsToSelector:@selector(agreementView:index:url:)]) {
            [self.delegate agreementView:self index:index url:mod.url];
        }
        return NO;
    }
    
    
    return YES;
}
-(void)setLineSpacing:(CGFloat)height{
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    paragraphStyle.lineSpacing = height; // 调整行间距
    NSRange range = NSMakeRange(0, [self.text length]);
    [self.contentMString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:range];
    self.textView.attributedText = self.contentMString;
}
#pragma mark - setter
-(void)setTextFont:(UIFont *)textFont{
    _textFont = textFont;
    [self.contentMString addAttribute:NSFontAttributeName value:textFont range:NSMakeRange(0,self.contentMString.length)];
    self.textView.attributedText = self.contentMString;
}
-(void)setTextColor:(UIColor *)textColor{
    _textColor = textColor;
    [self.contentMString addAttribute:NSForegroundColorAttributeName value:textColor range:NSMakeRange(0,self.text.length)];
    self.textView.attributedText = self.contentMString;
}
-(void)setModelArray:(NSArray<HanAgreementModel *> *)modelArray{
    _modelArray = modelArray;
    NSInteger i = 0;
    for (HanAgreementModel *mod in modelArray) {
        NSRange range = [self.text rangeOfString:mod.text];
        if (range.location != NSNotFound) {
            if (mod.textFont) {
                [self.contentMString addAttribute:NSFontAttributeName value:mod.textFont range:range];
            }
            if (mod.textColor) {
                [self.contentMString addAttribute:NSForegroundColorAttributeName  value:mod.textColor range:range];
            }
            [self.contentMString addAttribute:NSLinkAttributeName value:[NSString stringWithFormat:@"itemClick%ld",i] range:range];
            [self.itemArr addObject:[NSString stringWithFormat:@"itemClick%ld",i]];
            i++;
        }
    }
    self.textView.attributedText = self.contentMString;
}

#pragma mark - get
- (NSMutableArray *)itemArr{
    if (!_itemArr) {
        _itemArr = [NSMutableArray arrayWithCapacity:5];
    }
    return _itemArr;
}


- (UITextView *)textView{
    if (_textView == nil) {
        _textView = [[UITextView alloc]initWithFrame:self.bounds];
        _textView.delegate = self;
        _textView.editable = NO;//必须禁止输入，否则点击将会弹出输入键盘
        _textView.scrollEnabled = NO;//可选的，视具体情况而定
        _textView.backgroundColor = [UIColor clearColor];
        [self addSubview:_textView];
    }
    return _textView;
}


@end

@implementation  HanAgreementModel

#pragma mark - get
-(NSString *)text{
    if (_text == nil) {
        _text = @"";
    }
    return _text;
}
-(NSString *)url{
    if (_url == nil) {
        _url = @"";
    }
    return _url;
}
@end

用法

HanAgreementModel *mod = [[HanAgreementModel alloc] init];
    mod.text = @"「本服務條款及細則」";
    mod.url = @"www.baidu.com1";
    mod.textColor = HanHexColor(@"#F74D2E");
    
    NSString *text = @"本人已閱讀並接受「本服務條款及細則」";
    HanAgreementView *agreementView = [[HanAgreementView alloc] initWithText:text addModelArray:@[mod]];
    [self.view addSubview:agreementView];
    [agreementView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(agreeBtn.mas_centerY);
        make.left.equalTo(agreeBtn.mas_right);
        make.right.equalTo(self.view).offset(-20);;
        make.height.mas_equalTo(30);
    }];