ktyr report

クロージャ objective-cにおけるブロック

宣言

typealias ChangeMonthClosureType = (year:Int,month:Int) -> () //型に別名を付ける
var closureOnChangeMonth:ChangeMonthClosureType?

設定

self.msvc.closureOnChangeMonth = {
    (year:Int,month:Int) -> () in
    println("closureOnChangeMonth year:\(year) month:\(month)")
}

実行

self.closureOnChangeMonth?(year: self._year, month: self._month)

参照渡し

class func addMonthWithYearMonth(inout ym:(year:Int,month:Int),addMonth:Int){
    var y:Int = ym.year
    var m:Int = ym.month + addMonth
    while 12 < m {
        m -= 12
        y++
    }
    while m < 1 {
        m += 12
        y--
    }
    ym.year=y
    ym.month=m
}

iPhoneアプリ「Rc Calendar」をリリースしました。

ちょっとだけ便利なカレンダーです。

This is a little bit handy calendar.

Rc Calendar
Rc Calendar(English)

言語が日本語かどうか判定

func isCurrentLangJa() -> Bool{
    let lang:[AnyObject] = NSLocale.preferredLanguages()
    return lang[0] as String == "ja"
}

sort

var w:[AnyObject] = self.subviews
w.sort { (v1:AnyObject, v2:AnyObject) -> Bool in
    return v1.tag < v2.tag
}

tagが0以上のsubviewを取得するクラス拡張

extension UIView {
    var subviewsTagIsGreaterThan0:[AnyObject]{
        get{
            return self.subviews.filter({(w:AnyObject) -> Bool in w.tag > 0})
        }
    }
}

tagでソートするクラス拡張

extension UIView{
var subviewsSortByTag:[AnyObject]{
    get{
        var w:[AnyObject] = self.subviews
        w.sort { (v1:AnyObject, v2:AnyObject) -> Bool in
            return v1.tag < v2.tag
        }
        return w
    }
}
}

名前付タプル配列

var draws:[(x:CGFloat, y:CGFloat, width:CGFloat, height:CGFloat)] = []
self.draws.append( (x:0.0, y:0.0, width:100.0, height:0.0) )

クラス拡張 objective-cにおけるカテゴリ

extension UIView {
    var left:CGFloat{
        get{
            return self.frame.origin.x
        }
        set{
            self.frame = CGRectMake(newValue, self.frame.origin.y, self.frame.size.width, self.frame.size.height)
        }
    }
    func toUIImage() -> UIImage{
        UIGraphicsBeginImageContextWithOptions(self.bounds.size, false, 0.0)
        self.layer.renderInContext(UIGraphicsGetCurrentContext())
        let image:UIImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return image
    }
}

String整形

String(format: "%04d-%02d-%02d %02d:%02d:%02d",year,month,day,hour,min,sec)