NSMutableAttributedString-Simple

Simplify the process of creating NSMutableAttributedString with block. 使用链式调用简化Objective-c富文本创建过程。

NSMutableAttributedString *attributedStr = [NSMutableAttributedString stringWithFormat:@"%@\r\n%@\r\n%@" strings:@[
    @"Test1".setBackgroundColor([UIColor redColor]).setSystemFontSize(20.f).setColor([UIColor blueColor]),
    @"Test2".setUnderlineColor([UIColor yellowColor]).setUnderlineStyle(@(NSUnderlineStyleThick))
            .setSystemFontSize(30.f).setColorWithRGB(0xfb8800),
    @"Test3".setStrikelineStyle(@(NSUnderlineStyleThick)).setStrikelineColor([UIColor blueColor])
]];