ktyr report

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)

NSTimerがFireしない
UIAlertViewのYes,Noボタンをタップしたタイミングと重なったり、
何らかの要因によりNSTimerがサブスレッドで実行されることが原因

対処法

[NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(methodName) userInfo:nil repeats:NO];

これを

dispatch_async(dispatch_get_main_queue(), ^{
    [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(methodName) userInfo:nil repeats:NO];
});

こうする

日付文字列まとめ

_currentDate =  [NSDate dateWithTimeIntervalSinceNow:[[NSTimeZone systemTimeZone] secondsFromGMT]];

NSDateFormatter* form = [[NSDateFormatter alloc] init];
[form setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];
[form setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
_currentDatetimeString = [form stringFromDate: _currentDate ];
[form setDateFormat:@"yyyy-MM-dd"];
_currentDateString = [form stringFromDate: _currentDate ];
[form setDateFormat:@"yyyy-MM"];
_currentYMString = [form stringFromDate: _currentDate ];
[form setDateFormat:@"HH:mm:ss"];
_currentTimeString = [form stringFromDate: _currentDate ];

jquery.validationSupport.js

サンプル