iOS支持可扩展字符串吗？

iOS中是否支持可扩展字符串？

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我想创建一个下划线窗格，单击它，然后打开其他一些视图控制器。

是的，它们在iOS中称为NSAttributedString

添加下划线的示例代码

NSString *str = @"Amit";
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:str];

[attributedString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt:NSUnderlineStyleSingle] range:NSMakeRange(0, 4)];

更多信息@

要向该下划线添加链接，请签出以下代码：

NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"Google Webpage"];
[attributedString addAttribute:NSLinkAttributeName
                         value:@"http://www.google.com"
                         range:[[attributedString string] rangeOfString:@"Google Webpage"]];


NSDictionary *linkAttributes = @{NSForegroundColorAttributeName: [UIColor greenColor],
                                 NSUnderlineColorAttributeName: [UIColor lightGrayColor],
                                 NSUnderlineStyleAttributeName: @(NSUnderlinePatternSolid)};

// assume that textView is a UITextView previously created (either by code or Interface Builder)
textView.linkTextAttributes = linkAttributes; // customizes the appearance of links
textView.attributedText = attributedString;
textView.delegate = self;

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找到此源代码@

是的，它们在iOS中称为NSAttributedString

添加下划线的示例代码

NSString *str = @"Amit";
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:str];

[attributedString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt:NSUnderlineStyleSingle] range:NSMakeRange(0, 4)];

更多信息@

要向该下划线添加链接，请签出以下代码：

NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"Google Webpage"];
[attributedString addAttribute:NSLinkAttributeName
                         value:@"http://www.google.com"
                         range:[[attributedString string] rangeOfString:@"Google Webpage"]];


NSDictionary *linkAttributes = @{NSForegroundColorAttributeName: [UIColor greenColor],
                                 NSUnderlineColorAttributeName: [UIColor lightGrayColor],
                                 NSUnderlineStyleAttributeName: @(NSUnderlinePatternSolid)};

// assume that textView is a UITextView previously created (either by code or Interface Builder)
textView.linkTextAttributes = linkAttributes; // customizes the appearance of links
textView.attributedText = attributedString;
textView.delegate = self;

已找到此源代码@