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2017-08-15 16:59:01 +08:00
commit bdc83e07ef
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+/*
+ * QRCodeReaderViewController
+ *
+ * Copyright 2014-present Yannick Loriot.
+ * http://yannickloriot.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#import "QRCodeReaderView.h"
+#import <AVFoundation/AVFoundation.h>
+
+#define DeviceMaxHeight ([UIScreen mainScreen].bounds.size.height)
+#define DeviceMaxWidth ([UIScreen mainScreen].bounds.size.width)
+#define widthRate DeviceMaxWidth/320
+
+#define contentTitleColorStr @"666666" //正文颜色较深
+
+@interface QRCodeReaderView ()<AVCaptureMetadataOutputObjectsDelegate>
+{
+    AVCaptureSession * session;
+    
+    NSTimer * countTime;
+}
+@property (nonatomic, strong) CAShapeLayer *overlay;
+@end
+
+@implementation QRCodeReaderView
+
+- (id)initWithFrame:(CGRect)frame
+{
+    if ((self = [super initWithFrame:frame])) {
+
+        [self instanceDevice];
+  }
+  
+  return self;
+}
+
+- (void)instanceDevice
+{
+    //扫描区域
+    UIImage *hbImage=[UIImage imageNamed:@"scanscanBg"];
+    UIImageView * scanZomeBack=[[UIImageView alloc] init];
+    scanZomeBack.backgroundColor = [UIColor clearColor];
+    scanZomeBack.layer.borderColor = [UIColor whiteColor].CGColor;
+    scanZomeBack.layer.borderWidth = 2.5;
+    scanZomeBack.image = hbImage;
+    //添加一个背景图片
+    CGRect mImagerect = CGRectMake(60*widthRate, (DeviceMaxHeight-200*widthRate)/2, 200*widthRate, 200*widthRate);
+    [scanZomeBack setFrame:mImagerect];
+    CGRect scanCrop=[self getScanCrop:mImagerect readerViewBounds:self.frame];
+    [self addSubview:scanZomeBack];
+    
+    //获取摄像设备
+    AVCaptureDevice * device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
+    //创建输入流
+    AVCaptureDeviceInput * input = [AVCaptureDeviceInput deviceInputWithDevice:device error:nil];
+    //创建输出流
+    AVCaptureMetadataOutput * output = [[AVCaptureMetadataOutput alloc]init];
+    //设置代理 在主线程里刷新
+    [output setMetadataObjectsDelegate:self queue:dispatch_get_main_queue()];
+    output.rectOfInterest = scanCrop;
+    
+    //初始化链接对象
+    session = [[AVCaptureSession alloc]init];
+    //高质量采集率
+    [session setSessionPreset:AVCaptureSessionPresetHigh];
+    if (input) {
+        [session addInput:input];
+    }
+    if (output) {
+        [session addOutput:output];
+        //设置扫码支持的编码格式(如下设置条形码和二维码兼容)
+        NSMutableArray *a = [[NSMutableArray alloc] init];
+        if ([output.availableMetadataObjectTypes containsObject:AVMetadataObjectTypeQRCode]) {
+            [a addObject:AVMetadataObjectTypeQRCode];
+        }
+        if ([output.availableMetadataObjectTypes containsObject:AVMetadataObjectTypeEAN13Code]) {
+            [a addObject:AVMetadataObjectTypeEAN13Code];
+        }
+        if ([output.availableMetadataObjectTypes containsObject:AVMetadataObjectTypeEAN8Code]) {
+            [a addObject:AVMetadataObjectTypeEAN8Code];
+        }
+        if ([output.availableMetadataObjectTypes containsObject:AVMetadataObjectTypeCode128Code]) {
+            [a addObject:AVMetadataObjectTypeCode128Code];
+        }
+        output.metadataObjectTypes=a;
+    }
+    
+    AVCaptureVideoPreviewLayer * layer = [AVCaptureVideoPreviewLayer layerWithSession:session];
+    layer.videoGravity=AVLayerVideoGravityResizeAspectFill;
+    layer.frame=self.layer.bounds;
+    [self.layer insertSublayer:layer atIndex:0];
+    
+    [self setOverlayPickerView:self];
+    
+    //开始捕获
+    [session startRunning];
+    
+    
+}
+
+-(void)loopDrawLine
+{
+        _is_AnmotionFinished = NO;
+    CGRect rect = CGRectMake(60*widthRate, (DeviceMaxHeight-200*widthRate)/2, 200*widthRate, 2);
+    if (_readLineView) {
+        _readLineView.alpha = 1;
+        _readLineView.frame = rect;
+    }
+    else{
+        _readLineView = [[UIImageView alloc] initWithFrame:rect];
+        [_readLineView setImage:[UIImage imageNamed:@"scanLine"]];
+        [self addSubview:_readLineView];
+    }
+    
+    [UIView animateWithDuration:1.5 animations:^{
+        //修改fream的代码写在这里
+        _readLineView.frame =CGRectMake(60*widthRate, (DeviceMaxHeight-200*widthRate)/2+200*widthRate-5, 200*widthRate, 2);
+    } completion:^(BOOL finished) {
+        if (!_is_Anmotion) {
+            [self loopDrawLine];
+        }
+        _is_AnmotionFinished = YES;
+    }];
+}
+
+- (void)setOverlayPickerView:(QRCodeReaderView *)reader
+{
+    
+    CGFloat wid = 60*widthRate;
+    CGFloat heih = (DeviceMaxHeight-200*widthRate)/2;
+    
+    //最上部view
+    CGFloat alpha = 0.6;
+    UIView* upView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, DeviceMaxWidth, heih)];
+    upView.alpha = alpha;
+    upView.backgroundColor = [self colorFromHexRGB:contentTitleColorStr];
+    [reader addSubview:upView];
+    
+    //用于说明的label
+    UILabel * labIntroudction= [[UILabel alloc] init];
+    labIntroudction.backgroundColor = [UIColor clearColor];
+    labIntroudction.frame=CGRectMake(0, 64+(heih-64-50*widthRate)/2, DeviceMaxWidth, 50*widthRate);
+    labIntroudction.textAlignment = NSTextAlignmentCenter;
+    labIntroudction.textColor=[UIColor whiteColor];
+    labIntroudction.text=@"将二维码置于矩形方框内";
+    [upView addSubview:labIntroudction];
+    
+    //左侧的view
+    UIView * cLeftView = [[UIView alloc] initWithFrame:CGRectMake(0, heih, wid, 200*widthRate)];
+    cLeftView.alpha = alpha;
+    cLeftView.backgroundColor = [self colorFromHexRGB:contentTitleColorStr];
+    [reader addSubview:cLeftView];
+    
+    //右侧的view
+    UIView *rightView = [[UIView alloc] initWithFrame:CGRectMake(DeviceMaxWidth-wid, heih, wid, 200*widthRate)];
+    rightView.alpha = alpha;
+    rightView.backgroundColor = [self colorFromHexRGB:contentTitleColorStr];
+    [reader addSubview:rightView];
+    
+    //底部view
+    UIView * downView = [[UIView alloc] initWithFrame:CGRectMake(0, heih+200*widthRate, DeviceMaxWidth, DeviceMaxHeight - heih-200*widthRate)];
+    downView.alpha = alpha;
+    downView.backgroundColor = [self colorFromHexRGB:contentTitleColorStr];
+    [reader addSubview:downView];
+    
+    //开关灯button
+    UIButton * turnBtn = [UIButton buttonWithType:UIButtonTypeCustom];
+    turnBtn.backgroundColor = [UIColor clearColor];
+    [turnBtn setBackgroundImage:[UIImage imageNamed:@"lightSelect"] forState:UIControlStateNormal];
+    [turnBtn setBackgroundImage:[UIImage imageNamed:@"lightNormal"] forState:UIControlStateSelected];
+    turnBtn.frame=CGRectMake((DeviceMaxWidth-50*widthRate)/2, (CGRectGetHeight(downView.frame)-50*widthRate)/2, 50*widthRate, 50*widthRate);
+    [turnBtn addTarget:self action:@selector(turnBtnEvent:) forControlEvents:UIControlEventTouchUpInside];
+     //[downView addSubview:turnBtn];
+}
+
+- (void)turnBtnEvent:(UIButton *)button_
+{
+    button_.selected = !button_.selected;
+    if (button_.selected) {
+        [self turnTorchOn:YES];
+    }
+    else{
+        [self turnTorchOn:NO];
+    }
+    
+}
+
+- (void)turnTorchOn:(bool)on
+{
+    Class captureDeviceClass = NSClassFromString(@"AVCaptureDevice");
+    if (captureDeviceClass != nil) {
+        AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
+        
+        if ([device hasTorch] && [device hasFlash]){
+            
+            [device lockForConfiguration:nil];
+            if (on) {
+                [device setTorchMode:AVCaptureTorchModeOn];
+                [device setFlashMode:AVCaptureFlashModeOn];
+                
+            } else {
+                [device setTorchMode:AVCaptureTorchModeOff];
+                [device setFlashMode:AVCaptureFlashModeOff];
+            }
+            [device unlockForConfiguration];
+        }
+    }
+}
+
+-(CGRect)getScanCrop:(CGRect)rect readerViewBounds:(CGRect)readerViewBounds
+{
+    
+    CGFloat x,y,width,height;
+    
+//    width = (CGFloat)(rect.size.height+10)/readerViewBounds.size.height;
+//    
+//    height = (CGFloat)(rect.size.width-50)/readerViewBounds.size.width;
+//    
+//    x = (1-width)/2;
+//    y = (1-height)/2;
+    
+    x = (CGRectGetHeight(readerViewBounds)-CGRectGetHeight(rect))/2/CGRectGetHeight(readerViewBounds);
+    y = (CGRectGetWidth(readerViewBounds)-CGRectGetWidth(rect))/2/CGRectGetWidth(readerViewBounds);
+    width = CGRectGetHeight(rect)/CGRectGetHeight(readerViewBounds);
+    height = CGRectGetWidth(rect)/CGRectGetWidth(readerViewBounds);
+    
+    return CGRectMake(x, y, width, height);
+    
+}
+
+- (void)start
+{
+    [session startRunning];
+}
+
+- (void)stop
+{
+    [session stopRunning];
+}
+
+#pragma mark - 扫描结果
+- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection
+{
+    if (metadataObjects && metadataObjects.count>0) {
+        AVMetadataMachineReadableCodeObject * metadataObject = [metadataObjects objectAtIndex : 0 ];
+        //输出扫描字符串
+        if (_delegate && [_delegate respondsToSelector:@selector(readerScanResult:)]) {
+            [_delegate readerScanResult:metadataObject.stringValue];
+        }
+    }
+}
+
+#pragma mark - 颜色
+//获取颜色
+- (UIColor *)colorFromHexRGB:(NSString *)inColorString
+{
+    UIColor *result = nil;
+    unsigned int colorCode = 0;
+    unsigned char redByte, greenByte, blueByte;
+    
+    if (nil != inColorString)
+    {
+        NSScanner *scanner = [NSScanner scannerWithString:inColorString];
+        (void) [scanner scanHexInt:&colorCode]; // ignore error
+    }
+    redByte = (unsigned char) (colorCode >> 16);
+    greenByte = (unsigned char) (colorCode >> 8);
+    blueByte = (unsigned char) (colorCode); // masks off high bits
+    result = [UIColor
+              colorWithRed: (float)redByte / 0xff
+              green: (float)greenByte/ 0xff
+              blue: (float)blueByte / 0xff
+              alpha:1.0];
+    return result;
+}
+
+
+@end