NSAttributedString编程

- (void)viewDidLoad

{

    [super viewDidLoad];



    

    NSMutableAttributedString *attributedString = [[[NSMutableAttributedString alloc] initWithString:@"測试富文本显示"] autorelease];

    //为全部文本设置字体

    [attributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:24.0] range:NSMakeRange(0, [attributedString length])];

    //将“測试”两字字体颜色设置为蓝色

    [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:NSMakeRange(0, 2)];

    //将“富文本”三个字字体颜色设置为红色

    [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(2, 3)];



    self.label = [[[UILabel alloc] init] autorelease];

    self.label.frame = CGRectMake(10, 100, 300, 30);

    self.label.attributedText = attributedString;

    [self.view addSubview:self.label];

    

    UIFont *font = [UIFont fontWithName:@"Palatino-Roman" size:14.0];

    NSDictionary *attrsDictionary = [NSDictionary dictionaryWithObject:font

                                                                forKey:NSFontAttributeName];

    NSAttributedString *attrString = [[NSAttributedString alloc] initWithString:@"用DIC显示文字"

                                                                     attributes:attrsDictionary];

    UILabel *labTwo = [[UILabel alloc] initWithFrame:CGRectMake(10, 150, 300, 30)];

    labTwo.attributedText = attrString;

    [self.view addSubview:labTwo];

    [labTwo release];

    [attrString release];

    

    UIFont *dicFont = [UIFont boldSystemFontOfSize:20];

    UIColor *foregroundColor = [UIColor blueColor];

    NSNumber *underline = [NSNumber numberWithInt:NSUnderlineStyleSingle];  // 下划线

    

    NSShadow *shadow = [[NSShadow alloc] init];

    shadow.shadowBlurRadius = 5;  // 模糊度

    shadow.shadowColor = [UIColor blackColor];

    shadow.shadowOffset = CGSizeMake(1, 3);

    

    NSDictionary *attrsDic = @{NSForegroundColorAttributeName: foregroundColor,

                               NSUnderlineStyleAttributeName: underline,

                               NSFontAttributeName:dicFont,

                               //NSStrokeColorAttributeName:[UIColor redColor], // 绘制空心字颜色

                               //NSStrokeWidthAttributeName:@3,                  // 默觉得 0。即不改变。正数仅仅改变描边宽度。负数同一时候改变文字的描边和填充宽度。

比如，对于常见的空心字，这个值通常为3.0。

                               NSShadowAttributeName:shadow,

                               NSObliquenessAttributeName:@0.5,   // 设置字体倾斜度

                               };

    

    NSAttributedString *attributedString_str_atts = [[NSAttributedString alloc] initWithString:@"http://www.baidu.com" attributes:attrsDic];

    // NSLog(@"%@", attributedString_str_atts);

    UILabel *labThree = [[UILabel alloc] initWithFrame:CGRectMake(10, 200, 300, 30)];

    labThree.attributedText = attributedString_str_atts;

    [self.view addSubview:labThree];

    [attributedString_str_atts release];

    [labThree release];

    

    UIFont *txtFont = [UIFont boldSystemFontOfSize:30];

    NSDictionary *attDic = @{NSFontAttributeName:txtFont,

                             NSObliquenessAttributeName:@0.5,

                             };

    NSAttributedString *attribute = [[NSAttributedString alloc] initWithString:@"測试显示" attributes:attDic];

    

    

    UILabel *labFour = [[UILabel alloc] initWithFrame:CGRectMake(10, 250, 300, 50)];

    labFour.attributedText = attribute;

    [self.view addSubview:labFour];

    [attribute release];

    [labFour release];

}