NSMutableAttributedString 文本样式 (一)

UILabel、UIBUtton等的 text的样式

UILabel *lab = [[UILabel
alloc] initWithFrame:CGRectMake(10,
100,
300, 100)];

    lab.numberOfLines =
4;
    [self.view
addSubview:lab];

    

    //
删除、替换、插入

    NSMutableAttributedString *attStr = [[NSMutableAttributedString
alloc]
initWithString:@"你好吗，我很好。你好吗，我很好。你好吗，我很好。你好吗，我很好。你好吗，我很好。你好吗，我很好。你好吗，我很好。我很好。"];

    //
添加删除线

    [attStr addAttribute:NSStrikethroughStyleAttributeName
value:[NSNumber
numberWithInt:NSUnderlineStyleSingle]
range:NSMakeRange(0,
3)];

    //
添加下划线

    [attStr addAttribute:NSUnderlineStyleAttributeName
value:[NSNumber
numberWithInt:NSUnderlineStyleSingle]
range:NSMakeRange(4,
3)];

    //
某个字体大小

    [attStr addAttribute:NSFontAttributeName
value:[UIFont
systemFontOfSize:22]
range:NSMakeRange(8,
3)];

    //
字体颜色

    [attStr addAttribute:NSForegroundColorAttributeName
value:[UIColor
redColor] range:NSMakeRange(12,
3)];

    //
设置笔画的粗细

    [attStr addAttribute:NSStrokeWidthAttributeName
value:[NSNumber
numberWithInt:NSUnderlineStyleDouble]
range:NSMakeRange(16,
3)];

    // label
的背景颜色

    [attStr addAttribute:NSBackgroundColorAttributeName
value:[UIColor
greenColor] range:NSMakeRange(20,
3)];

    // label上文本颜色（也会影响删除线和下划线的颜色）

    [attStr addAttribute:NSForegroundColorAttributeName
value:[UIColor
blueColor] range:NSMakeRange(24,
3)];

    [attStr addAttribute:NSStrikethroughStyleAttributeName
value:[NSNumber
numberWithInt:NSUnderlineStyleSingle]
range:NSMakeRange(24,
3)];

    [attStr addAttribute:NSUnderlineStyleAttributeName
value:[NSNumber
numberWithInt:NSUnderlineStyleSingle]
range:NSMakeRange(24,
3)];

    //
文本内容颜色和删除线、下划线颜色不一样

    // NSStrokeColorAttributeName
单独设置没有效果

    //
必须与NSStrokeWidthAttributeName一起设置

    [attStr addAttribute:NSForegroundColorAttributeName
value:[UIColor
blueColor] range:NSMakeRange(28,
3)];

    [attStr addAttribute:NSStrikethroughStyleAttributeName
value:[NSNumber
numberWithInt:NSUnderlineStyleSingle]
range:NSMakeRange(28,
3)];

    [attStr addAttribute:NSStrokeColorAttributeName
value:[UIColor
redColor] range:NSMakeRange(28,
3)];
//cyanColor

    [attStr addAttribute:NSStrokeWidthAttributeName
value:[NSNumber
numberWithInt:NSUnderlineStyleSingle]
range:NSMakeRange(28,
3)];

    //
笔画的阴影效果
   
NSShadow *shadow = [[NSShadow
alloc] init];

    [shadow setShadowColor:[UIColor
redColor]];

    [shadow setShadowBlurRadius:4];

    [shadow setShadowOffset:CGSizeMake(2,
2)];

    [attStr addAttribute:NSShadowAttributeName
value:shadow range:NSMakeRange(32,
3)];
   
//

    [attStr addAttribute:NSParagraphStyleAttributeName
value:[NSNumber
numberWithInt:NSUnderlineStyleSingle]
range:NSMakeRange(36,
3)];

    
   
//

    //[attStr addAttribute:NSVerticalGlyphFormAttributeName value:[NSNumber numberWithInt:1] range:NSMakeRange(28, 4)];

    
    lab.attributedText = attStr;