NSDictionary *attrsDic = @{NSForegroundColorAttributeName: [UIColor blackColor],
NSBackgroundColorAttributeName: [UIColor clearColor],
NSBaselineOffsetAttributeName: [NSNumber numberWithFloat:5.0],
NSKernAttributeName: [NSNumber numberWithFloat:1.0],
NSLigatureAttributeName: [NSNumber numberWithFloat:1],
NSFontAttributeName:[UIFont systemFontOfSize:16]};
NSString *text =@"呵呵额呵呵呵呵 百度 呵呵额呵呵呵呵";
NSMutableAttributedString *attributedstr = [[NSMutableAttributedString alloc]initWithString:text attributes:attrsDic];
NSInteger iLocation =0;
while (true) {
NSRange range = [text rangeOfString:@"百度" options:NSCaseInsensitiveSearch range:NSMakeRange(iLocation, text.length-iLocation)];
if (range.length == 0) {
break;
}
[attributedstr addAttribute:NSLinkAttributeName value:[NSURL URLWithString:@"http://www.baidu.com"] range:range];
[attributedstr addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt:NSUnderlineStyleSingle] range:range];
iLocation = range.location+range.length;
}
UITextView *mTextView = [[UITextView alloc]initWithFrame:CGRectMake(10,10,self.view.frame.size.width-20,self.view.frame.size.height-20)];
mTextView.delegate =self;
mTextView.editable =NO;
mTextView.font = [UIFont systemFontOfSize:16];
mTextView.attributedText = attributedstr;
[self.view addSubview:mTextView];
设置链接的属性
NSDictionary *linkAttributes =@{NSForegroundColorAttributeName: [UIColorblueColor],NSUnderlineStyleAttributeName: [NSNumbernumberWithInt:NSUnderlineStyleSingle]};
mTextView.linkTextAttributes = linkAttributes;
获取点击事件:
- (BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange {
NSLog(@"shouldInteractWithURL:%@", URL);
if ([[URL scheme] isEqualToString:@"http"]) {
NSString *username = [URL host];
NSLog(@"username:%@", username);
return NO;
}
return YES;// let the system open this URL
}
设置行间距
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineSpacing = 6;// 字体的行间距
NSDictionary *attributes = @{ NSFontAttributeName:[UIFont systemFontOfSize:16], NSParagraphStyleAttributeName:paragraphStyle };
mTextView.attributedText = [[NSAttributedString alloc] initWithString:text attributes:attributes];
NSAttributedString的属性:
// NSFontAttributeName 设置字体属性,取值为 UIFont类型,默认值:字体:Helvetica(Neue)字号:12
// NSForegroundColorAttributeName 设置字体颜色,取值为 UIColor对象,默认值为黑色
// NSBackgroundColorAttributeName 设置字体所在区域背景颜色,取值为 UIColor对象,默认值为nil,透明色
// NSLigatureAttributeName 设置连体属性,取值为NSNumber 对象(整数),0表示没有连体字符,1表示使用默认的连体字符
// NSKernAttributeName 设定字符间距,取值为 NSNumber 对象(整数),正值间距加宽,负值间距变窄
// NSStrikethroughStyleAttributeName 设置删除线,取值为 NSNumber 对象(整数)
// NSStrikethroughColorAttributeName 设置删除线颜色,取值为 UIColor 对象,默认值为黑色
// NSUnderlineStyleAttributeName 设置下划线,取值为 NSNumber 对象(整数),枚举常量 NSUnderlineStyle中的值,与删除线类似
// NSUnderlineColorAttributeName 设置下划线颜色,取值为 UIColor 对象,默认值为黑色
// NSStrokeWidthAttributeName 设置笔画宽度,取值为 NSNumber 对象(整数),负值填充效果,正值中空效果
// NSStrokeColorAttributeName 填充部分颜色,不是字体颜色,取值为 UIColor 对象
// NSShadowAttributeName 设置阴影属性,取值为 NSShadow 对象
// NSTextEffectAttributeName 设置文本特殊效果,取值为 NSString 对象,目前只有图版印刷效果可用:
// NSBaselineOffsetAttributeName 设置基线偏移值,取值为 NSNumber (float),正值上偏,负值下偏
// NSObliquenessAttributeName 设置字形倾斜度,取值为 NSNumber (float),正值右倾,负值左倾
// NSExpansionAttributeName 设置文本横向拉伸属性,取值为 NSNumber (float),正值横向拉伸文本,负值横向压缩文本
// NSWritingDirectionAttributeName 设置文字书写方向,从左向右书写或者从右向左书写
// NSVerticalGlyphFormAttributeName 设置文字排版方向,取值为 NSNumber 对象(整数),0表示横排文本,1表示竖排文本
// NSLinkAttributeName 设置链接属性,点击后调用浏览器打开指定URL地址
// NSAttachmentAttributeName 设置文本附件,取值为NSTextAttachment对象,常用于文字图片混排
// NSParagraphStyleAttributeName 设置文本段落排版格式,取值为 NSParagraphStyle 对象