// // LBXScanView.m // // // Created by lbxia on 15/11/15. // Copyright © 2015年 lbxia. All rights reserved. // #import "LBXScanView.h" NS_ASSUME_NONNULL_BEGIN @interface LBXScanView() //扫码区域各种参数 @property (nonatomic, strong,nullable) LBXScanViewStyle* viewStyle; //扫码区域 @property (nonatomic,assign)CGRect scanRetangleRect; //线条扫码动画封装 @property (nonatomic,strong,nullable)LBXScanLineAnimation *scanLineAnimation; //网格扫码动画封装 @property (nonatomic,strong,nullable)LBXScanNetAnimation *scanNetAnimation; //线条在中间位置，不移动 @property (nonatomic,strong,nullable)UIImageView *scanLineStill; /** @brief 启动相机时 菊花等待 */ @property(nonatomic,strong,nullable)UIActivityIndicatorView* activityView; /** @brief 启动相机中的提示文字 */ @property(nonatomic,strong,nullable)UILabel *labelReadying; @end NS_ASSUME_NONNULL_END @implementation LBXScanView -(id)initWithFrame:(CGRect)frame style:(LBXScanViewStyle*)style { if (self = [super initWithFrame:frame]) { self.viewStyle = style; self.backgroundColor = [UIColor clearColor]; } return self; } - (void)drawRect:(CGRect)rect { [self drawScanRect]; } - (void)startDeviceReadyingWithText:(NSString*)text { int XRetangleLeft = _viewStyle.xScanRetangleOffset; CGSize sizeRetangle = CGSizeMake(self.frame.size.width - XRetangleLeft*2, self.frame.size.width - XRetangleLeft*2); if (!_viewStyle.isNeedShowRetangle) { CGFloat w = sizeRetangle.width; CGFloat h = w / _viewStyle.whRatio; NSInteger hInt = (NSInteger)h; h = hInt; sizeRetangle = CGSizeMake(w, h); } //扫码区域Y轴最小坐标 CGFloat YMinRetangle = self.frame.size.height / 2.0 - sizeRetangle.height/2.0 - _viewStyle.centerUpOffset; //设备启动状态提示 if (!_activityView) { self.activityView = [[UIActivityIndicatorView alloc]init]; [_activityView setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhiteLarge]; self.labelReadying = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, sizeRetangle.width, 30)]; _labelReadying.backgroundColor = [UIColor clearColor]; _labelReadying.textColor = [UIColor whiteColor]; _labelReadying.font = [UIFont systemFontOfSize:18.]; _labelReadying.text = text; [_labelReadying sizeToFit]; CGRect frame = _labelReadying.frame; CGPoint centerPt = CGPointMake(self.frame.size.width/2 + 20, YMinRetangle + sizeRetangle.height/2); _labelReadying.bounds = CGRectMake(0, 0, frame.size.width,30); _labelReadying.center = centerPt; _activityView.bounds = CGRectMake(0, 0, 30, 30); if (text) _activityView.center = CGPointMake(centerPt.x - frame.size.width/2 - 24 , _labelReadying.center.y); else _activityView.center = CGPointMake(self.frame.size.width/2 , _labelReadying.center.y); [self addSubview:_activityView]; [self addSubview:_labelReadying]; [_activityView startAnimating]; } } - (void)layoutSubviews { [super layoutSubviews]; } - (void)stopDeviceReadying { if (_activityView) { [_activityView stopAnimating]; [_activityView removeFromSuperview]; [_labelReadying removeFromSuperview]; self.activityView = nil; self.labelReadying = nil; } } /** * 开始扫描动画 */ - (void)startScanAnimation { switch (_viewStyle.anmiationStyle) { case LBXScanViewAnimationStyle_LineMove: { //线动画 if (!_scanLineAnimation) self.scanLineAnimation = [[LBXScanLineAnimation alloc]init]; [_scanLineAnimation startAnimatingWithRect:_scanRetangleRect InView:self Image:_viewStyle.animationImage]; } break; case LBXScanViewAnimationStyle_NetGrid: { //网格动画 if (!_scanNetAnimation) self.scanNetAnimation = [[LBXScanNetAnimation alloc]init]; [_scanNetAnimation startAnimatingWithRect:_scanRetangleRect InView:self Image:_viewStyle.animationImage]; } break; case LBXScanViewAnimationStyle_LineStill: { if (!_scanLineStill) { CGRect stillRect = CGRectMake(_scanRetangleRect.origin.x+20, _scanRetangleRect.origin.y + _scanRetangleRect.size.height/2, _scanRetangleRect.size.width-40, 2); _scanLineStill = [[UIImageView alloc]initWithFrame:stillRect]; _scanLineStill.image = _viewStyle.animationImage; } [self addSubview:_scanLineStill]; } default: break; } } /** * 结束扫描动画 */ - (void)stopScanAnimation { if (_scanLineAnimation) { [_scanLineAnimation stopAnimating]; } if (_scanNetAnimation) { [_scanNetAnimation stopAnimating]; } if (_scanLineStill) { [_scanLineStill removeFromSuperview]; } } - (void)drawScanRect { int XRetangleLeft = _viewStyle.xScanRetangleOffset; CGSize sizeRetangle = CGSizeMake(self.frame.size.width - XRetangleLeft*2, self.frame.size.width - XRetangleLeft*2); //if (!_viewStyle.isScanRetangelSquare) if (_viewStyle.whRatio != 1) { CGFloat w = sizeRetangle.width; CGFloat h = w / _viewStyle.whRatio; NSInteger hInt = (NSInteger)h; h = hInt; sizeRetangle = CGSizeMake(w, h); } //扫码区域Y轴最小坐标 CGFloat YMinRetangle = self.frame.size.height / 2.0 - sizeRetangle.height/2.0 - _viewStyle.centerUpOffset; CGFloat YMaxRetangle = YMinRetangle + sizeRetangle.height; CGFloat XRetangleRight = self.frame.size.width - XRetangleLeft; NSLog(@"frame:%@",NSStringFromCGRect(self.frame)); CGContextRef context = UIGraphicsGetCurrentContext(); //非扫码区域半透明 { //设置非识别区域颜色 const CGFloat *components = CGColorGetComponents(_viewStyle.notRecoginitonArea.CGColor); CGFloat red_notRecoginitonArea = components[0]; CGFloat green_notRecoginitonArea = components[1]; CGFloat blue_notRecoginitonArea = components[2]; CGFloat alpa_notRecoginitonArea = components[3]; CGContextSetRGBFillColor(context, red_notRecoginitonArea, green_notRecoginitonArea, blue_notRecoginitonArea, alpa_notRecoginitonArea); //填充矩形 //扫码区域上面填充 CGRect rect = CGRectMake(0, 0, self.frame.size.width, YMinRetangle); CGContextFillRect(context, rect); //扫码区域左边填充 rect = CGRectMake(0, YMinRetangle, XRetangleLeft,sizeRetangle.height); CGContextFillRect(context, rect); //扫码区域右边填充 rect = CGRectMake(XRetangleRight, YMinRetangle, XRetangleLeft,sizeRetangle.height); CGContextFillRect(context, rect); //扫码区域下面填充 rect = CGRectMake(0, YMaxRetangle, self.frame.size.width,self.frame.size.height - YMaxRetangle); CGContextFillRect(context, rect); //执行绘画 CGContextStrokePath(context); } if (_viewStyle.isNeedShowRetangle) { //中间画矩形(正方形) CGContextSetStrokeColorWithColor(context, _viewStyle.colorRetangleLine.CGColor); CGContextSetLineWidth(context, 1); CGContextAddRect(context, CGRectMake(XRetangleLeft, YMinRetangle, sizeRetangle.width, sizeRetangle.height)); //CGContextMoveToPoint(context, XRetangleLeft, YMinRetangle); //CGContextAddLineToPoint(context, XRetangleLeft+sizeRetangle.width, YMinRetangle); CGContextStrokePath(context); } _scanRetangleRect = CGRectMake(XRetangleLeft, YMinRetangle, sizeRetangle.width, sizeRetangle.height); //画矩形框4格外围相框角 //相框角的宽度和高度 int wAngle = _viewStyle.photoframeAngleW; int hAngle = _viewStyle.photoframeAngleH; //4个角的 线的宽度 CGFloat 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 CGFloat diffAngle = 0.0f; //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 } break; case LBXScanViewPhotoframeAngleStyle_On: { diffAngle = 0; } break; case LBXScanViewPhotoframeAngleStyle_Inner: { diffAngle = -_viewStyle.photoframeLineW/2; } break; default: { diffAngle = linewidthAngle/3; } break; } CGContextSetStrokeColorWithColor(context, _viewStyle.colorAngle.CGColor); CGContextSetRGBFillColor(context, 1.0, 1.0, 1.0, 1.0); // Draw them with a 2.0 stroke width so they are a bit more visible. CGContextSetLineWidth(context, linewidthAngle); // CGFloat leftX = XRetangleLeft - diffAngle; CGFloat topY = YMinRetangle - diffAngle; CGFloat rightX = XRetangleRight + diffAngle; CGFloat bottomY = YMaxRetangle + diffAngle; //左上角水平线 CGContextMoveToPoint(context, leftX-linewidthAngle/2, topY); CGContextAddLineToPoint(context, leftX + wAngle, topY); //左上角垂直线 CGContextMoveToPoint(context, leftX, topY-linewidthAngle/2); CGContextAddLineToPoint(context, leftX, topY+hAngle); //左下角水平线 CGContextMoveToPoint(context, leftX-linewidthAngle/2, bottomY); CGContextAddLineToPoint(context, leftX + wAngle, bottomY); //左下角垂直线 CGContextMoveToPoint(context, leftX, bottomY+linewidthAngle/2); CGContextAddLineToPoint(context, leftX, bottomY - hAngle); //右上角水平线 CGContextMoveToPoint(context, rightX+linewidthAngle/2, topY); CGContextAddLineToPoint(context, rightX - wAngle, topY); //右上角垂直线 CGContextMoveToPoint(context, rightX, topY-linewidthAngle/2); CGContextAddLineToPoint(context, rightX, topY + hAngle); //右下角水平线 CGContextMoveToPoint(context, rightX+linewidthAngle/2, bottomY); CGContextAddLineToPoint(context, rightX - wAngle, bottomY); //右下角垂直线 CGContextMoveToPoint(context, rightX, bottomY+linewidthAngle/2); CGContextAddLineToPoint(context, rightX, bottomY - hAngle); CGContextStrokePath(context); } //根据矩形区域，获取识别区域 + (CGRect)getScanRectWithPreView:(UIView*)view style:(LBXScanViewStyle*)style { int XRetangleLeft = style.xScanRetangleOffset; CGSize sizeRetangle = CGSizeMake(view.frame.size.width - XRetangleLeft*2, view.frame.size.width - XRetangleLeft*2); if (style.whRatio != 1) { CGFloat w = sizeRetangle.width; CGFloat h = w / style.whRatio; NSInteger hInt = (NSInteger)h; h = hInt; sizeRetangle = CGSizeMake(w, h); } //扫码区域Y轴最小坐标 CGFloat YMinRetangle = view.frame.size.height / 2.0 - sizeRetangle.height/2.0 - style.centerUpOffset; //扫码区域坐标 CGRect cropRect = CGRectMake(XRetangleLeft, YMinRetangle, sizeRetangle.width, sizeRetangle.height); //计算兴趣区域 CGRect rectOfInterest; //ref:http://www.cocoachina.com/ios/20141225/10763.html CGSize size = view.bounds.size; CGFloat p1 = size.height/size.width; CGFloat p2 = 1920./1080.; //使用了1080p的图像输出 if (p1 < p2) { CGFloat fixHeight = size.width * 1920. / 1080.; CGFloat fixPadding = (fixHeight - size.height)/2; rectOfInterest = CGRectMake((cropRect.origin.y + fixPadding)/fixHeight, cropRect.origin.x/size.width, cropRect.size.height/fixHeight, cropRect.size.width/size.width); } else { CGFloat fixWidth = size.height * 1080. / 1920.; CGFloat fixPadding = (fixWidth - size.width)/2; rectOfInterest = CGRectMake(cropRect.origin.y/size.height, (cropRect.origin.x + fixPadding)/fixWidth, cropRect.size.height/size.height, cropRect.size.width/fixWidth); } return rectOfInterest; } //根据矩形区域，获取识别区域 + (CGRect)getZXingScanRectWithPreView:(UIView*)view style:(LBXScanViewStyle*)style { int XRetangleLeft = style.xScanRetangleOffset; CGSize sizeRetangle = CGSizeMake(view.frame.size.width - XRetangleLeft*2, view.frame.size.width - XRetangleLeft*2); if (style.whRatio != 1) { CGFloat w = sizeRetangle.width; CGFloat h = w / style.whRatio; NSInteger hInt = (NSInteger)h; h = hInt; sizeRetangle = CGSizeMake(w, h); } //扫码区域Y轴最小坐标 CGFloat YMinRetangle = view.frame.size.height / 2.0 - sizeRetangle.height/2.0 - style.centerUpOffset; XRetangleLeft = XRetangleLeft/view.frame.size.width * 1080; YMinRetangle = YMinRetangle / view.frame.size.height * 1920; CGFloat width = sizeRetangle.width / view.frame.size.width * 1080; CGFloat height = sizeRetangle.height / view.frame.size.height * 1920; //扫码区域坐标 CGRect cropRect = CGRectMake(XRetangleLeft, YMinRetangle, width,height); return cropRect; } @end