ktyr report

iOSのorientationchange時の処理順
画面サイズ変更 -> resize -> orientationchange

Androidのorientationchange時の処理順
orientationchange -> 画面サイズ変更 -> resize
又は 画面サイズ変更 -> resize -> orientationchange
※端末(Androidのバージョン?)によってはこの順番の時もある

よってjsで端末回転時の処理をする際は下記のようにする。

デモ

var oEventCount = 0;
$(window).off('.ori').on('orientationchange.ori resize.ori',function(e){
	oEventCount++;
	if(oEventCount < 2){
		return;
	}
	oEventCount = 0;

	//do something
});

・resizeイベントだけで済む場合もある。
・iOSの場合、スクロールでステータスバーが出たり引っ込んだりした時にresizeイベントが走る

こっちのほうが良い場合も

var oEventId;
$(window).off('.ori').on('orientationchange.ori resize.ori',function(e){
	clearTimeout(oEventId);
	oEventId = setTimeout(function(){
		//do something
	},300);
});

UIView Extension #4

var subviewsSortByTop:[AnyObject]{
    get{
        var w:[AnyObject] = self.getSubviews()
        w.sort { (v1:AnyObject, v2:AnyObject) -> Bool in
            return v1.origin.y < v2.origin.y
        }
        return w
    }
}

UIView Extension #3

func goto(left:CGFloat,top:CGFloat, duration:CGFloat=0.4){
    UIView.setAnimationBeginsFromCurrentState(true)
    UIView.animateWithDuration(NSTimeInterval(duration), delay: 0.0, usingSpringWithDamping: 1.0, initialSpringVelocity: 0.0, options: UIViewAnimationOptions.CurveEaseInOut,
        animations: { () -> Void in
            self.left = left
            self.top = top
        },
        completion: { (finish:Bool) -> Void in
            
        }
    )
}

UIImageView Extension #1

extension UIImageView {
    var paintColor:String{
        get{
            return ""
        }
        set{
            if self.image != nil {
                if newValue == "" {
                    self.paintByTintColor = false
                }else{
                    self.tintColor = Drawer.getUIColorByColorHex(newValue, alpha: 1.0, luminanceScale: 1.0)
                    self.paintByTintColor = true
                }
            }
        }
    }
    var paintByTintColor:Bool{
        get{
            return true
        }
        set{
            if newValue {
                self.image = self.image!.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
            }else{
                self.image = self.image!.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
            }
        }
    }
}

UIView Extension #2

var className:String{
    get{
        return NSStringFromClass(self.dynamicType).componentsSeparatedByString(".").last!
    }
}
var fileName:String{
    get{
        return __FILE__.componentsSeparatedByString("/").last!
    }
}

UIView Extension #1

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)
    }
}
var right:CGFloat{
    get{
        return self.frame.origin.x + self.frame.size.width
    }
    set{
        self.frame = CGRectMake(newValue - self.frame.size.width, self.frame.origin.y, self.frame.size.width, self.frame.size.height)
    }
}
var top:CGFloat{
    get{
        return self.frame.origin.y
    }
    set{
        self.frame = CGRectMake(self.frame.origin.x, newValue, self.frame.size.width, self.frame.size.height)
    }
}
var bottom:CGFloat{
    get{
        return self.frame.origin.y + self.frame.size.height
    }
    set{
        self.frame = CGRectMake(self.frame.origin.x, newValue - self.frame.size.height, self.frame.size.width, self.frame.size.height)
    }
}

GCD #2

func dispatch_async_global(block: () -> ()) {
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), block)
}

GCD #1

func dispatch_async_main(block: () -> (), delay: Double = 0) {
    if delay <= 0 {
        dispatch_async(dispatch_get_main_queue(), block)
        return
    }
    
    let d = dispatch_time(DISPATCH_TIME_NOW, Int64(delay * Double(NSEC_PER_SEC)))
    dispatch_after(d, dispatch_get_main_queue()) {
        block()
    }
}

UICollectionViewCellを上揃え

import UIKit

class TopAlignedCollectionViewFlowLayout: UICollectionViewFlowLayout {
    
    override func layoutAttributesForElementsInRect(rect: CGRect) -> [AnyObject]? {
        var sameYElements:[UICollectionViewLayoutAttributes] = []
        var baseline:CGFloat = -2.0
        var height:CGFloat = 0.0
        var basey:CGFloat = 0.0
        let attributesToReturn:[UICollectionViewLayoutAttributes] = super.layoutAttributesForElementsInRect(rect) as [UICollectionViewLayoutAttributes]
        for attributes in attributesToReturn {
            if attributes.representedElementCategory == UICollectionElementCategory.Cell {
                let centerY:CGFloat = CGRectGetMidY(attributes.frame)
                if 1.0 < fabs(centerY - baseline) {
                    baseline = centerY
                    self.__alignTopWithElements(sameYElements, basey:basey)
                    sameYElements.removeAll()
                    height = 0.0
                    basey = 0.0
                }
                sameYElements.append(attributes)
                if height < attributes.frame.size.height {
                    height = attributes.frame.size.height
                    basey = attributes.frame.origin.y
                }
            }
        }
        self.__alignTopWithElements(sameYElements, basey:basey)
        return attributesToReturn
    }
    private func __alignTopWithElements(elements:[UICollectionViewLayoutAttributes], basey:CGFloat) {
        if elements.count < 1 {
            return
        }
        for attributes in elements {
            var rect:CGRect = attributes.frame
            rect.origin.y = basey
            attributes.frame = rect
        }
    }
}