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项目中的一些常用公共方法 - swift3.1

项目中的一些常用公共方法 - swift3.1

作者: JoyGY | 来源:发表于2017-05-19 17:58 被阅读0次

    1. 数据显示格式的转换 - 千分位分隔符显示数据

    class func thousandsOfSub_spacesForNumber(numStr: String?) -> String{
            if numStr != nil && numStr != "<null>" && numStr != ""  && numStr != "-"{
    
                let num = Double(numStr!)!
    
                if num < 1000 || num < -1000{
    
                    let changeNum = String(format: "%.2f", num)
                    return changeNum
                }else {
                    let numberFormatter = NumberFormatter()
                    numberFormatter.positiveFormat = ",###.00;"
    
                    let changeNum = numberFormatter.string(from: NSNumber(value: num))
                    return changeNum!
                }
            }
            
            return "0.00"
        }
    

    2. 将字符串替换*号 - 隐藏显示的数据

        /**
         - parameter str:        字符
         - parameter startindex: 开始字符索引
         - parameter endindex:   结束字符索引
    
         - returns: 替换后的字符串
        */
        class func stringByX(_ str:String,startindex:Int,endindex:Int) -> String{
            //开始字符索引
            let startIndex = str.characters.index(str.startIndex, offsetBy: startindex)
            //结束字符索引
            let endIndex = str.characters.index(str.startIndex, offsetBy: endindex)
            let range = Range<String.Index>(startIndex..<endIndex)
            var s = String()
            for _ in 0..<endindex - startindex{
                s += "*"
            }
            return str.replacingCharacters(in: range, with: s)
        }
    

    3. 获取随机颜色

        class func randomColorShow() -> UIColor{
            let red = Double(arc4random_uniform(256))
            let green = Double(arc4random_uniform(256))
            let blue = Double(arc4random_uniform(256))
    
            let color = UIColor(red: CGFloat(red/255.0), green: CGFloat(green/255.0), blue: CGFloat(blue/255.0), alpha: 1)
            return color
        }
    

    4. 获取图片的尺寸大小

      class func getImagePicReallySize(_ img: UIImage) -> CGSize {
            // 找出图片与屏幕的宽高比例,依照先到达为准
            var scale: CGFloat = 0;
            let scaleX = screenWidth / img.size.width
            let scaleY = screenHeight / img.size.height
            scale = (scaleX > scaleY) ? scaleY : scaleX
    
            // 按比例修改Size
            let size = CGSize(width: img.size.width * scale, height: img.size.height * scale)
            return size
        }
    

    5. 获取字符串的宽度和高度size 与 文字行数

        class func getTextReallyRectSize(_ text:NSString, font:UIFont, size:CGSize) -> CGRect {
            let attributes = [NSFontAttributeName:font]
            let option = NSStringDrawingOptions.usesLineFragmentOrigin
            let rect:CGRect = text.boundingRect(with: size, options: option, attributes: attributes, context: nil)
            return rect
        }
    
        /**获取文字的行数 */
        class func getHangNumberWithTextString(strW: CGFloat, lagerW: CGFloat) -> Int {
    
            var hang: Int = 1
            if strW.truncatingRemainder(dividingBy: lagerW) == 0.0 {
                hang = Int(strW / lagerW)
            }else {
                hang = Int(strW / lagerW + 1)
            }
            return hang
        }
    

    6. 字符串截取

        class func stringBySeperate(_ words: String, start: Int, end: Int) -> String {
            if words == "<null>" {
                return "-"
            }
            let index = words.characters.index(words.startIndex, offsetBy: start)
            let index2 = words.characters.index(words.startIndex, offsetBy: end)
            let range = index ..< index2
            // Range<String.Index>(start: index, end: index2)
            let rangeStr = words.substring(with: range)
            return rangeStr
        }
    

    7. 富文本设置数值与百分号

        class func settingPercentAndValueForDesign(_ textStr: String, textFont: UIFont, textLab: UILabel, textColor: UIColor) {
    
    
            let color = textColor
    
            let strLength = textStr.characters.count
            if strLength == 0 || textStr == "-"{
                textLab.text = "-"
            }else {
                let mutableAttrStr = NSMutableAttributedString(string: textStr)
                //8.54
                mutableAttrStr.addAttributes([NSFontAttributeName: textFont, NSForegroundColorAttributeName: color], range: NSMakeRange(0,strLength - 1))
    
                //%
                mutableAttrStr.addAttributes([NSFontAttributeName: UIFont.systemFont(ofSize: 13), NSForegroundColorAttributeName: color], range: NSMakeRange(strLength - 1,1))
    
                // 富文本显示lab的内容
                textLab.attributedText = mutableAttrStr
            }
        }
    

    8. 获取拼音首字母(传入汉字字符串, 返回大写拼音首字母)

        class func getTheFirstLetterForCharacters(_ aString: String) -> String{
            //转成了可变字符串
            let str = NSMutableString(string: aString)
            //先转换为带声调的拼音
            CFStringTransform(str, nil, kCFStringTransformMandarinLatin, false)
            //再转换为不带声调的拼音
            CFStringTransform(str, nil, kCFStringTransformStripDiacritics, false)
            //转化为大写拼音
            let pinYin: NSString = str.capitalized as NSString
            //获取并返回首字母
            return pinYin.substring(to: 1)
        }
    

    9.获取指定年月的开始和结束的日期

        //指定年月的开始日期 - //注意这个直接返回的date是0时区的,需要formate转换成字符串,获取当前时区的,才是正确的结果
        class func startOfMonth(year: Int, month: Int) -> NSDate {
    
            let calendar = NSCalendar.current
            let startComps = NSDateComponents()
            startComps.day = 1
            startComps.month = month
            startComps.year = year
            let startDate = calendar.date(from: startComps as DateComponents)!
    
            return startDate as NSDate
        }
    
        //指定年月的结束日期
        class func endOfMonth(year: Int, month: Int, returnEndTime:Bool = false) -> NSDate {
            let calendar = NSCalendar.current
            let components = NSDateComponents()
            components.month = 1
            if returnEndTime {
                components.second = -1
            } else {
                components.day = -1
            }
    
            let endOfYear = calendar.date(byAdding: components as DateComponents, to: startOfMonth(year: year, month: month) as Date)!
            return endOfYear as NSDate
        }
    

    10. 字典转换成json - 请求时 传送参数-需要传递一个json字符串给服务器

        class func dictionaryChangeJSON(dic: NSDictionary) -> NSString {
            do {
                let tpDic = try JSONSerialization.data(withJSONObject: dic, options: JSONSerialization.WritingOptions.prettyPrinted)
                let changeStr = NSString(data: tpDic, encoding: String.Encoding.utf8.rawValue)
                return changeStr!
            } catch {
                fatalError("转换失败:\(error)")
            }
        }
    

    11. 友好的显示日期格式

        class func friendlyTime(_ dateTime: String) -> String {
    
            //日期格式 yyyy年MM月dd日 HH:mm:ss
            let dateFormatter: DateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
    
            if let date = dateFormatter.date(from: dateTime) {
                let delta = Date().timeIntervalSince(date)//获得秒数
                if delta < 3600 { //一个小时内
                    if delta <= 0 {
                        return Language.getStrings(name: time_just) //刚刚
                    }else if (delta < 60) { //几秒以前
                        return "\(Int(delta)) "+Language.getStrings(name: time_SecondAgo)
                    }else{ //几分钟以前
                        return "\(Int(delta / 60)) " + Language.getStrings(name: time_MinuteAgo)
                    }
                }else if delta == 3600 { //1小时
                    return "1 " + Language.getStrings(name: time_Hour)
                }else{
                    let calendar = Calendar.current
                    let unitFlags: NSCalendar.Unit = [NSCalendar.Unit.year, NSCalendar.Unit.month, NSCalendar.Unit.day, NSCalendar.Unit.hour, NSCalendar.Unit.minute, NSCalendar.Unit.second]
                    let comp = (calendar as NSCalendar).components(unitFlags,from:Date())
                    let currentYear = comp.year! 
                    let currentMonth = comp.month! 
                    let currentDay = comp.day! 
                    let currentHour = comp.hour!
    
                    let compSec = (calendar as NSCalendar).components(unitFlags,from: date)
                    let year = compSec.year! 
                    let month = compSec.month! 
                    let day = compSec.day! 
                    let hour = compSec.hour! 
                    var minute = compSec.minute! 
    
                    //设置分为两位 16:7--16:07
                    if compSec.minute! < 10 {
                        let temp = "0\(minute)"
                        minute = Int(temp)!
                    }
    
                    //检查是不是在同一天
                    if currentYear == year && currentMonth == month && currentDay == day {
                        let divHour = currentHour - hour
                        return "\(divHour) " + Language.getStrings(name: time_HourAgo)
                    }else{//不在同一天
                        if currentYear == year && currentMonth == month {
                            let divDay = currentDay - day
                            if divDay == 1 {
                                return Language.getStrings(name: time_Yesterday) + " \(hour):\(minute)"
                            }else{
                                return "\(year)-\(month)-\(day) \(hour):\(minute)"
                            }
                        }else{
                            let divMonth = currentMonth - month
                            if currentDay == 1 && (divMonth == 1 || (currentMonth == 1 && month == 12)){
                                return Language.getStrings(name: time_Yesterday) + " \(hour):\(minute)"
                            }else{
                                return "\(year)-\(month)-\(day) \(hour):\(minute)"
                            }
                        }
                    }
                }
            }
            return ""
        }
    

    12. 绘制左上角和右上角的两个圆角

    /** 绘制左上角和右上角的两个圆角 */
        class func drawTopCorner(rect: CGRect, vi: UIView, borderColor: UIColor) {
            //切左上右上圆角
            let maskPath = UIBezierPath(roundedRect:vi.bounds, byRoundingCorners: [.topLeft,.topRight], cornerRadii: CGSize(width: 5.0, height: 5.0))
            let maskLayer = CAShapeLayer()
            maskLayer.frame = vi.bounds
            maskLayer.path = maskPath.cgPath
            vi.layer.mask = maskLayer
    
            //添加border
            let borderLayer = CAShapeLayer()
            borderLayer.frame = vi.bounds
            borderLayer.path = maskPath.cgPath
            borderLayer.lineWidth = 0.5
            borderLayer.strokeColor = borderColor.cgColor
            borderLayer.fillColor = UIColor.clear.cgColor
    
            let layers:NSArray = vi.layer.sublayers! as NSArray
    
            if (((layers.lastObject! as! CALayer).isKind(of: CAShapeLayer.self))) {
                (layers.lastObject as AnyObject).removeFromSuperlayer()
            }
            vi.layer.addSublayer(borderLayer)
        }
    

    13. 绘制左下角和右下角的两个圆角

    /** 绘制左下角和右下角的两个圆角 */
        class func drawBottomCorner(rect: CGRect, vi: UIView, borderColor: UIColor) {
            //切左下右下圆角
            let maskPath = UIBezierPath(roundedRect:vi.bounds, byRoundingCorners:[.bottomLeft,.bottomRight], cornerRadii: CGSize(width: 5.0, height: 5.0))
            let maskLayer = CAShapeLayer()
            maskLayer.frame = vi.bounds
            maskLayer.path = maskPath.cgPath
            vi.layer.mask = maskLayer
    
    
            //添加border
            let borderLayer = CAShapeLayer()
            borderLayer.frame = vi.bounds
            borderLayer.path = maskPath.cgPath
            borderLayer.lineWidth = 0.5
            borderLayer.strokeColor = borderColor.cgColor
            borderLayer.fillColor = UIColor.clear.cgColor
    
            let layers:NSArray = vi.layer.sublayers! as NSArray
    
            if (((layers.lastObject! as! CALayer).isKind(of: CAShapeLayer.self))) {
                (layers.lastObject as AnyObject).removeFromSuperlayer()
            }
            vi.layer.addSublayer(borderLayer)
        }
    

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