// // LBXScanView.swift // swiftScan // // Created by xialibing on 15/12/8. // Copyright © 2015年 xialibing. All rights reserved. // import UIKit open class LBXScanView: UIView { //扫码区域各种参数 var viewStyle:LBXScanViewStyle = LBXScanViewStyle() //扫码区域 var scanRetangleRect:CGRect = CGRect.zero //线条扫码动画封装 var scanLineAnimation:LBXScanLineAnimation? //网格扫码动画封装 var scanNetAnimation:LBXScanNetAnimation? //线条在中间位置，不移动 var scanLineStill:UIImageView? //启动相机时 菊花等待 var activityView:UIActivityIndicatorView? //启动相机中的提示文字 var labelReadying:UILabel? //记录动画状态 var isAnimationing:Bool = false /** 初始化扫描界面 - parameter frame: 界面大小，一般为视频显示区域 - parameter vstyle: 界面效果参数 - returns: instancetype */ public init(frame:CGRect, vstyle:LBXScanViewStyle ) { viewStyle = vstyle switch (viewStyle.anmiationStyle) { case LBXScanViewAnimationStyle.LineMove: scanLineAnimation = LBXScanLineAnimation.instance() break case LBXScanViewAnimationStyle.NetGrid: scanNetAnimation = LBXScanNetAnimation.instance() break case LBXScanViewAnimationStyle.LineStill: scanLineStill = UIImageView() scanLineStill?.image = viewStyle.animationImage break default: break } var frameTmp = frame; frameTmp.origin = CGPoint.zero super.init(frame: frameTmp) backgroundColor = UIColor.clear } override init(frame: CGRect) { var frameTmp = frame; frameTmp.origin = CGPoint.zero super.init(frame: frameTmp) backgroundColor = UIColor.clear } required public init?(coder aDecoder: NSCoder) { self.init() } deinit { if (scanLineAnimation != nil) { scanLineAnimation!.stopStepAnimating() } if (scanNetAnimation != nil) { scanNetAnimation!.stopStepAnimating() } // print("LBXScanView deinit") } /** * 开始扫描动画 */ func startScanAnimation() { if isAnimationing { return } isAnimationing = true let cropRect:CGRect = getScanRectForAnimation() switch viewStyle.anmiationStyle { case LBXScanViewAnimationStyle.LineMove: // print(NSStringFromCGRect(cropRect)) scanLineAnimation!.startAnimatingWithRect(animationRect: cropRect, parentView: self, image:viewStyle.animationImage ) break case LBXScanViewAnimationStyle.NetGrid: scanNetAnimation!.startAnimatingWithRect(animationRect: cropRect, parentView: self, image:viewStyle.animationImage ) break case LBXScanViewAnimationStyle.LineStill: let stillRect = CGRect(x: cropRect.origin.x+20, y: cropRect.origin.y + cropRect.size.height/2, width: cropRect.size.width-40, height: 2); self.scanLineStill?.frame = stillRect self.addSubview(scanLineStill!) self.scanLineStill?.isHidden = false break default: break } } /** * 开始扫描动画 */ func stopScanAnimation() { isAnimationing = false switch viewStyle.anmiationStyle { case LBXScanViewAnimationStyle.LineMove: scanLineAnimation?.stopStepAnimating() break case LBXScanViewAnimationStyle.NetGrid: scanNetAnimation?.stopStepAnimating() break case LBXScanViewAnimationStyle.LineStill: self.scanLineStill?.isHidden = true break default: break } } // Only override drawRect: if you perform custom drawing. // An empty implementation adversely affects performance during animation. override open func draw(_ rect: CGRect) { // Drawing code drawScanRect() } //MARK:----- 绘制扫码效果----- func drawScanRect() { let XRetangleLeft = viewStyle.xScanRetangleOffset var sizeRetangle = CGSize(width: self.frame.size.width - XRetangleLeft*2.0, height: self.frame.size.width - XRetangleLeft*2.0) if viewStyle.whRatio != 1.0 { let w = sizeRetangle.width; var h:CGFloat = w / viewStyle.whRatio let hInt:Int = Int(h) h = CGFloat(hInt) sizeRetangle = CGSize(width: w, height: h) } //扫码区域Y轴最小坐标 let YMinRetangle = self.frame.size.height / 2.0 - sizeRetangle.height/2.0 - viewStyle.centerUpOffset let YMaxRetangle = YMinRetangle + sizeRetangle.height let XRetangleRight = self.frame.size.width - XRetangleLeft // print("frame:%@",NSStringFromCGRect(self.frame)) let context = UIGraphicsGetCurrentContext()! //非扫码区域半透明 //设置非识别区域颜色 context.setFillColor(viewStyle.color_NotRecoginitonArea.cgColor) //填充矩形 //扫码区域上面填充 var rect = CGRect(x: 0, y: 0, width: self.frame.size.width, height: YMinRetangle) context.fill(rect) //扫码区域左边填充 rect = CGRect(x: 0, y: YMinRetangle, width: XRetangleLeft, height: sizeRetangle.height) context.fill(rect) //扫码区域右边填充 rect = CGRect(x: XRetangleRight, y: YMinRetangle, width: XRetangleLeft,height: sizeRetangle.height) context.fill(rect) //扫码区域下面填充 rect = CGRect(x: 0, y: YMaxRetangle, width: self.frame.size.width,height: self.frame.size.height - YMaxRetangle) context.fill(rect) //执行绘画 context.strokePath() if viewStyle.isNeedShowRetangle { //中间画矩形(正方形) context.setStrokeColor(viewStyle.colorRetangleLine.cgColor) context.setLineWidth(1); context.addRect(CGRect(x: XRetangleLeft, y: YMinRetangle, width: sizeRetangle.width, height: sizeRetangle.height)) //CGContextMoveToPoint(context, XRetangleLeft, YMinRetangle); //CGContextAddLineToPoint(context, XRetangleLeft+sizeRetangle.width, YMinRetangle); context.strokePath() } scanRetangleRect = CGRect(x: XRetangleLeft, y: YMinRetangle, width: sizeRetangle.width, height: sizeRetangle.height) //画矩形框4格外围相框角 //相框角的宽度和高度 let wAngle = viewStyle.photoframeAngleW; let hAngle = viewStyle.photoframeAngleH; //4个角的 线的宽度 let linewidthAngle = viewStyle.photoframeLineW;// 经验参数：6和4 //画扫码矩形以及周边半透明黑色坐标参数 var diffAngle = linewidthAngle/3; diffAngle = linewidthAngle / 2; //框外面4个角，与框有缝隙 diffAngle = linewidthAngle/2; //框4个角 在线上加4个角效果 diffAngle = 0;//与矩形框重合 switch viewStyle.photoframeAngleStyle { case LBXScanViewPhotoframeAngleStyle.Outer: diffAngle = linewidthAngle/3//框外面4个角，与框紧密联系在一起 case LBXScanViewPhotoframeAngleStyle.On: diffAngle = 0 case LBXScanViewPhotoframeAngleStyle.Inner: diffAngle = -viewStyle.photoframeLineW/2 } context.setStrokeColor(viewStyle.colorAngle.cgColor); context.setFillColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0); // Draw them with a 2.0 stroke width so they are a bit more visible. context.setLineWidth(linewidthAngle); // let leftX = XRetangleLeft - diffAngle let topY = YMinRetangle - diffAngle let rightX = XRetangleRight + diffAngle let bottomY = YMaxRetangle + diffAngle //左上角水平线 context.move(to: CGPoint(x: leftX-linewidthAngle/2, y: topY)) context.addLine(to: CGPoint(x: leftX + wAngle, y: topY)) //左上角垂直线 context.move(to: CGPoint(x: leftX, y: topY-linewidthAngle/2)) context.addLine(to: CGPoint(x: leftX, y: topY+hAngle)) //左下角水平线 context.move(to: CGPoint(x: leftX-linewidthAngle/2, y: bottomY)) context.addLine(to: CGPoint(x: leftX + wAngle, y: bottomY)) //左下角垂直线 context.move(to: CGPoint(x: leftX, y: bottomY+linewidthAngle/2)) context.addLine(to: CGPoint(x: leftX, y: bottomY - hAngle)) //右上角水平线 context.move(to: CGPoint(x: rightX+linewidthAngle/2, y: topY)) context.addLine(to: CGPoint(x: rightX - wAngle, y: topY)) //右上角垂直线 context.move(to: CGPoint(x: rightX, y: topY-linewidthAngle/2)) context.addLine(to: CGPoint(x: rightX, y: topY + hAngle)) // 右下角水平线 context.move(to: CGPoint(x: rightX+linewidthAngle/2, y: bottomY)) context.addLine(to: CGPoint(x: rightX - wAngle, y: bottomY)) //右下角垂直线 context.move(to: CGPoint(x: rightX, y: bottomY+linewidthAngle/2)) context.addLine(to: CGPoint(x: rightX, y: bottomY - hAngle)) context.strokePath() } func getScanRectForAnimation() -> CGRect { let XRetangleLeft = viewStyle.xScanRetangleOffset var sizeRetangle = CGSize(width: self.frame.size.width - XRetangleLeft*2, height: self.frame.size.width - XRetangleLeft*2) if viewStyle.whRatio != 1 { let w = sizeRetangle.width var h = w / viewStyle.whRatio let hInt:Int = Int(h) h = CGFloat(hInt) sizeRetangle = CGSize(width: w, height: h) } //扫码区域Y轴最小坐标 let YMinRetangle = self.frame.size.height / 2.0 - sizeRetangle.height/2.0 - viewStyle.centerUpOffset //扫码区域坐标 let cropRect = CGRect(x: XRetangleLeft, y: YMinRetangle, width: sizeRetangle.width, height: sizeRetangle.height) return cropRect; } //根据矩形区域，获取识别区域 static func getScanRectWithPreView(preView:UIView, style:LBXScanViewStyle) -> CGRect { let XRetangleLeft = style.xScanRetangleOffset; var sizeRetangle = CGSize(width: preView.frame.size.width - XRetangleLeft*2, height: preView.frame.size.width - XRetangleLeft*2) if style.whRatio != 1 { let w = sizeRetangle.width var h = w / style.whRatio let hInt:Int = Int(h) h = CGFloat(hInt) sizeRetangle = CGSize(width: w, height: h) } //扫码区域Y轴最小坐标 let YMinRetangle = preView.frame.size.height / 2.0 - sizeRetangle.height/2.0 - style.centerUpOffset //扫码区域坐标 let cropRect = CGRect(x: XRetangleLeft, y: YMinRetangle, width: sizeRetangle.width, height: sizeRetangle.height) //计算兴趣区域 var rectOfInterest:CGRect //ref:http://www.cocoachina.com/ios/20141225/10763.html let size = preView.bounds.size; let p1 = size.height/size.width; let p2:CGFloat = 1920.0/1080.0 //使用了1080p的图像输出 if p1 < p2 { let fixHeight = size.width * 1920.0 / 1080.0; let fixPadding = (fixHeight - size.height)/2; rectOfInterest = CGRect(x: (cropRect.origin.y + fixPadding)/fixHeight, y: cropRect.origin.x/size.width, width: cropRect.size.height/fixHeight, height: cropRect.size.width/size.width) } else { let fixWidth = size.height * 1080.0 / 1920.0; let fixPadding = (fixWidth - size.width)/2; rectOfInterest = CGRect(x: cropRect.origin.y/size.height, y: (cropRect.origin.x + fixPadding)/fixWidth, width: cropRect.size.height/size.height, height: cropRect.size.width/fixWidth) } return rectOfInterest } func getRetangeSize()->CGSize { let XRetangleLeft = viewStyle.xScanRetangleOffset var sizeRetangle = CGSize(width: self.frame.size.width - XRetangleLeft*2, height: self.frame.size.width - XRetangleLeft*2) let w = sizeRetangle.width; var h = w / viewStyle.whRatio; let hInt:Int = Int(h) h = CGFloat(hInt) sizeRetangle = CGSize(width: w, height: h) return sizeRetangle } func deviceStartReadying(readyStr:String) { let XRetangleLeft = viewStyle.xScanRetangleOffset let sizeRetangle = getRetangeSize() //扫码区域Y轴最小坐标 let YMinRetangle = self.frame.size.height / 2.0 - sizeRetangle.height/2.0 - viewStyle.centerUpOffset //设备启动状态提示 if (activityView == nil) { self.activityView = UIActivityIndicatorView(frame: CGRect(x: 0, y: 0, width: 30, height: 30)) activityView?.center = CGPoint(x: XRetangleLeft + sizeRetangle.width/2 - 50, y: YMinRetangle + sizeRetangle.height/2) activityView?.style = UIActivityIndicatorView.Style.whiteLarge addSubview(activityView!) let labelReadyRect = CGRect(x: activityView!.frame.origin.x + activityView!.frame.size.width + 10, y: activityView!.frame.origin.y, width: 100, height: 30); //print("%@",NSStringFromCGRect(labelReadyRect)) self.labelReadying = UILabel(frame: labelReadyRect) labelReadying?.text = readyStr labelReadying?.backgroundColor = UIColor.clear labelReadying?.textColor = UIColor.white labelReadying?.font = UIFont.systemFont(ofSize: 18.0) addSubview(labelReadying!) } addSubview(labelReadying!) activityView?.startAnimating() } func deviceStopReadying() { if activityView != nil { activityView?.stopAnimating() activityView?.removeFromSuperview() labelReadying?.removeFromSuperview() activityView = nil labelReadying = nil } } }