设置任何界面下的电池栏前景颜色都是白色

application.setStatusBarStyle(.LightContent, animated: true)

Paste_Image.png

alertTitleLabel.font = self.alertTitleLabelFont()
    let mstr = NSMutableAttributedString(string: alertTitleLabel.text!)
    let par = NSMutableParagraphStyle()
    par.alignment = .Justified
    par.lineSpacing = 6
    let dict = [NSParagraphStyleAttributeName:par,
                NSFontAttributeName:self.alertContentLabelFont(),
                NSUnderlineStyleAttributeName:NSNumber.init(integer: NSUnderlineStyle.StyleNone.rawValue)]
    //Cannot convert value of type 'NSUnderlineStyle' to expected argument type 'Int' --->用rawValue 解决枚举转Int
    mstr.addAttributes(dict, range: NSMakeRange(0, mstr.length))
    alertContentLabel.attributedText = mstr

label文章左右对齐
http://www.jianshu.com/p/38a6fd46fb9c
http://www.jianshu.com/p/06722622073b

IOS集成第三方TTF字体库
参考文章:
http://www.jianshu.com/p/7979cc606bd5