iOS开发UI篇 —— TextView特殊文字链接(超链接)
NSString *readMessage = @"在...注册并创建账户的同时,我接受服务条款和隐私条款";
UITextView *textView = [[UITextView alloc] init];
textView.textColor = [UIColor blackColor];
textView.font = [UIFont systemFontOfSize:14];
NSAttributedString *attri = [NSMutableAttributedString attributedStringWithMessage:readMessage paragraphSpacing:0 lineSpacing:0 firstStr:@"服务条款" secendStr:@"隐私条款"];
textView.linkTextAttributes = @{NSForegroundColorAttributeName:[UIColor blueColor]}; // 修改可点击文字的颜色
textView.attributedText = attri;
textView.delegate = self;
[self.reginView addSubview:textView];
textView.backgroundColor = [UIColor clearColor];
textView.editable = NO;
[self.view addSubView: textView];
//代理:
-(BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange {
NSRange range = [self.readMessage rangeOfString:@"服务条款"];//
if (characterRange.location == range.location) {//位置是否相同
//跳转的控制器或页面
// UserFileVC *userFileVC = [[UserFileVC alloc] init];
// [self presentViewController:userFileVC animated:YES completion:nil];
return NO; //这里必须返回,否则会出现长按崩溃的bug
}else {
NSRange otherRange = [self.readMessage rangeOfString:@"隐私条款"];
if (characterRange.location == otherRange.location) {
//跳转的控制器或页面
// UserFileVC *userFileVC = [[UserFileVC alloc] init];
// [self presentViewController:userFileVC animated:YES completion:nil];
}
return NO; //这里必须返回,否则会出现长按崩溃的bug
}
return YES;
}
//分类方法如下:(一般写在分类方法中)
+ (NSAttributedString *)attributedStringWithMessage:(NSString *)message paragraphSpacing:(CGFloat)spacing lineSpacing:(CGFloat)lineSpace firstStr:(NSString *)firstStr secendStr:(NSString *)secendStr{
// 设置属性
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
// 设置行间距
paragraphStyle.paragraphSpacing = spacing; // 段落间距
paragraphStyle.lineSpacing = lineSpace; // 行间距
NSDictionary *attributes = @{
NSForegroundColorAttributeName:[UIColor blackColor],
NSParagraphStyleAttributeName:paragraphStyle
};
NSMutableAttributedString * attrStr = [[NSMutableAttributedString alloc] initWithString:message attributes:attributes];
[attrStr addAttributes:@{
NSLinkAttributeName:firstStr
}
range:[message rangeOfString:firstStr]];
[attrStr addAttributes:@{
NSLinkAttributeName:secendStr
}
range:[message rangeOfString:secendStr]];
return attrStr;
}
上面的代码还有个bug还未解决,就是只要长按那个textView控件就去触发这个方法(超链接),待之后想到后再更新。
2017.12.3 晚
将来的自己,会感谢现在不放弃的自己!

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