iOS:個性化UITextView(縮進，行距，鋪滿)

2019-11-14 20:36:08

字體：大中小

來源：轉載

供稿：網友

總體來說個性化定制UITextView中的內容有兩種方法：

1，從文件中讀取內容到UITextView，這個個人感覺使用rtfd和rtf格式文件效果非常好。

2，使用NSAttributeString進行定制

具體方法如下:

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init];
paragraphStyle.lineHeightMultiple = 20.f;
paragraphStyle.maximumLineHeight = 25.f;
paragraphStyle.minimumLineHeight = 15.f;
paragraphStyle.firstLineHeadIndent = 20.f;
paragraphStyle.alignment = NSTextAlignmentJustified;
NSDictionary *attributes = @{ NSFontAttributeName:[UIFont systemFontOfSize:14], NSParagraphStyleAttributeName:paragraphStyle, NSForegroundColorAttributeName:[UIColor colorWithRed:76./255. green:75./255. blue:71./255. alpha:1]
};
textView.attributedText = [[NSAttributedString alloc]initWithString:content attributes:attributes];

當然也可以初始化一個NSMutableAttributedString，然后向里面添加文字樣式，最后將它賦給textView的AttributedText即可

NSMutableAttributedString *atr = [[NSMutableAttributedString alloc]initWithString:detail];
[atr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:14] range:NSMakeRange(0, detail.length)];
textView.attributedText = atr;

另外，對于textview中的鏈接樣式，同樣也可以定制

NSDictionary *linkAttributes = @{NSForegroundColorAttributeName: [UIColor blueColor],
NSUnderlineColorAttributeName: [UIColor blackColor],
NSUnderlineStyleAttributeName: @(NSUnderlinePatternDash)};
self.linkTextAttributes = linkAttributes;