iOS 二维码 2
2016-05-30 11:23
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//
// SYQRCodeViewController.h
// SYQRCodeDemo
//
// Created by sunbb on 15-1-9.
// Copyright (c) 2015年 SY. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface SYQRCodeViewController :
UIViewController
@property (nonatomic,
copy) void (^SYQRCodeCancleBlock) (SYQRCodeViewController *);//扫描取消
@property (nonatomic,
copy) void (^SYQRCodeSuncessBlock) (SYQRCodeViewController *,NSString
*);//扫描结果
@property (nonatomic,
copy) void (^SYQRCodeFailBlock) (SYQRCodeViewController *);//扫描失败
@end
//
// SYQRCodeViewController.m
// SYQRCodeDemo
//
// Created by sunbb on 15-1-9.
// Copyright (c) 2015年 SY. All rights reserved.
//
#import "SYQRCodeViewController.h"
#import <AVFoundation/AVFoundation.h>
//设备宽/高/坐标
#define kDeviceWidth [UIScreen mainScreen].bounds.size.width
#define KDeviceHeight [UIScreen mainScreen].bounds.size.height
#define KDeviceFrame [UIScreen mainScreen].bounds
static const
float kLineMinY =
185;
static const
float kLineMaxY =
385;
static const
float kReaderViewWidth =
200;
static const
float kReaderViewHeight =
200;
@interface
SYQRCodeViewController () <AVCaptureMetadataOutputObjectsDelegate>
@property (nonatomic,
strong) AVCaptureSession *qrSession;//回话
@property (nonatomic,
strong) AVCaptureVideoPreviewLayer *qrVideoPreviewLayer;//读取
@property (nonatomic,
strong) UIImageView *line;//交互线
@property (nonatomic,
strong) NSTimer *lineTimer;//交互线控制
@end
@implementation SYQRCodeViewController
- (void)viewDidLoad
{
[super
viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor
whiteColor];
[self
initUI];
[self
setOverlayPickerView];
[self
startSYQRCodeReading];
[self
initTitleView];
[self
createBackBtn];
}
- (void)dealloc
{
if (_qrSession) {
[_qrSession
stopRunning];
_qrSession =
nil;
}
if (_qrVideoPreviewLayer) {
_qrVideoPreviewLayer =
nil;
}
if (_line) {
_line =
nil;
}
if (_lineTimer)
{
[_lineTimer
invalidate];
_lineTimer =
nil;
}
}
- (void)initTitleView
{
UIView *bgView = [[UIView
alloc] initWithFrame:CGRectMake(0,0,kDeviceWidth,
64)];
bgView.backgroundColor = [UIColor
colorWithRed:62.0/255
green:199.0/255
blue:153.0/255
alpha:1.0];
[self.view
addSubview:bgView];
UILabel *titleLab = [[UILabel
alloc] initWithFrame:CGRectMake((kDeviceWidth
- 40) / 2.0,
28, 40,
20)];
//scanCropView.image=[UIImage imageNamed:@""];
//titleLab.layer.borderColor = [UIColor greenColor].CGColor;
//titleLab.layer.borderWidth = 2.0;
//titleLab.backgroundColor = [UIColor colorWithRed:62.0/255 green:199.0/255 blue:153.0/255 alpha:1.0];
titleLab.text =
@"扫题";
titleLab.shadowColor = [UIColor
lightGrayColor];
titleLab.shadowOffset =
CGSizeMake(0, -
1);
titleLab.font = [UIFont
boldSystemFontOfSize:18.0];
titleLab.textColor = [UIColor
whiteColor];
titleLab.textAlignment =
NSTextAlignmentCenter;
[self.view
addSubview:titleLab];
}
- (void)createBackBtn
{
UIButton *btn = [UIButton
buttonWithType:UIButtonTypeCustom];
[btn setFrame:CGRectMake(20,
28, 60,
24)];
[btn setImage:[UIImage
imageNamed:@"bar_back"]
forState:UIControlStateNormal];
[btn addTarget:self
action:@selector(cancleSYQRCodeReading)
forControlEvents:UIControlEventTouchUpInside];
[self.view
addSubview:btn];
}
- (void)initUI
{
AVCaptureDevice *device = [AVCaptureDevice
defaultDeviceWithMediaType:AVMediaTypeVideo];
//摄像头判断
NSError *error =
nil;
AVCaptureDeviceInput *input = [AVCaptureDeviceInput
deviceInputWithDevice:device
error:&error];
if (error)
{
NSLog(@"没有摄像头-%@",
error.localizedDescription);
return;
}
//设置输出(Metadata元数据)
AVCaptureMetadataOutput *output = [[AVCaptureMetadataOutput
alloc]
init];
//设置输出的代理
//使用主线程队列，相应比较同步，使用其他队列，相应不同步，容易让用户产生不好的体验
[output setMetadataObjectsDelegate:self
queue:dispatch_get_main_queue()];
[output setRectOfInterest:[self
getReaderViewBoundsWithSize:CGSizeMake(kReaderViewWidth,
kReaderViewHeight)]];
//拍摄会话
AVCaptureSession *session = [[AVCaptureSession
alloc]
init];
// 读取质量，质量越高，可读取小尺寸的二维码
if ([session
canSetSessionPreset:AVCaptureSessionPreset1920x1080])
{
[session setSessionPreset:AVCaptureSessionPreset1920x1080];
}
else
if ([session
canSetSessionPreset:AVCaptureSessionPreset1280x720])
{
[session setSessionPreset:AVCaptureSessionPreset1280x720];
}
else
{
[session setSessionPreset:AVCaptureSessionPresetPhoto];
}
if ([session
canAddInput:input])
{
[session addInput:input];
}
if ([session
canAddOutput:output])
{
[session addOutput:output];
}
//设置输出的格式
//一定要先设置会话的输出为output之后，再指定输出的元数据类型
[output setMetadataObjectTypes:@[AVMetadataObjectTypeQRCode]];
//设置预览图层
AVCaptureVideoPreviewLayer *preview = [AVCaptureVideoPreviewLayer
layerWithSession:session];
//设置preview图层的属性
//preview.borderColor = [UIColor redColor].CGColor;
//preview.borderWidth = 1.5;
[preview setVideoGravity:AVLayerVideoGravityResizeAspectFill];
//设置preview图层的大小
preview.frame =
self.view.layer.bounds;
//[preview setFrame:CGRectMake(0, 0, kDeviceWidth, KDeviceHeight)];
//将图层添加到视图的图层
[self.view.layer
insertSublayer:preview
atIndex:0];
//[self.view.layer addSublayer:preview];
self.qrVideoPreviewLayer = preview;
self.qrSession = session;
}
- (CGRect)getReaderViewBoundsWithSize:(CGSize)asize
{
return
CGRectMake(kLineMinY /
KDeviceHeight, ((kDeviceWidth - asize.width) /
2.0) /
kDeviceWidth, asize.height /
KDeviceHeight, asize.width /
kDeviceWidth);
}
- (void)setOverlayPickerView
{
//画中间的基准线
_line = [[UIImageView
alloc] initWithFrame:CGRectMake((kDeviceWidth
- 300) / 2.0,
kLineMinY, 300,
12 * 300 /
320.0)];
[_line
setImage:[UIImage
imageNamed:@"QRCodeLine"]];
[self.view
addSubview:_line];
//最上部view
UIView* upView = [[UIView
alloc] initWithFrame:CGRectMake(0,
0, kDeviceWidth,
kLineMinY)];//80
upView.alpha =
0.3;
upView.backgroundColor = [UIColor
blackColor];
[self.view
addSubview:upView];
//左侧的view
UIView *leftView = [[UIView
alloc]
initWithFrame:CGRectMake(0,
kLineMinY, (kDeviceWidth -
kReaderViewWidth) /
2.0, kReaderViewHeight)];
leftView.alpha =
0.3;
leftView.backgroundColor = [UIColor
blackColor];
[self.view
addSubview:leftView];
//右侧的view
UIView *rightView = [[UIView
alloc] initWithFrame:CGRectMake(kDeviceWidth
- CGRectGetMaxX(leftView.frame),
kLineMinY, CGRectGetMaxX(leftView.frame),
kReaderViewHeight)];
rightView.alpha =
0.3;
rightView.backgroundColor = [UIColor
blackColor];
[self.view
addSubview:rightView];
CGFloat space_h =
KDeviceHeight - kLineMaxY;
//底部view
UIView *downView = [[UIView
alloc] initWithFrame:CGRectMake(0,
kLineMaxY, kDeviceWidth, space_h)];
downView.alpha =
0.3;
downView.backgroundColor = [UIColor
blackColor];
[self.view
addSubview:downView];
//四个边角
UIImage *cornerImage = [UIImage
imageNamed:@"QRCodeTopLeft"];
//左侧的view
UIImageView *leftView_image = [[UIImageView
alloc] initWithFrame:CGRectMake(CGRectGetMaxX(leftView.frame)
- cornerImage.size.width /
2.0, CGRectGetMaxY(upView.frame) - cornerImage.size.height
/ 2.0, cornerImage.size.width, cornerImage.size.height)];
leftView_image.image = cornerImage;
[self.view
addSubview:leftView_image];
cornerImage = [UIImage
imageNamed:@"QRCodeTopRight"];
//右侧的view
UIImageView *rightView_image = [[UIImageView
alloc] initWithFrame:CGRectMake(CGRectGetMinX(rightView.frame)
- cornerImage.size.width /
2.0, CGRectGetMaxY(upView.frame) - cornerImage.size.height
/ 2.0, cornerImage.size.width, cornerImage.size.height)];
rightView_image.image = cornerImage;
[self.view
addSubview:rightView_image];
cornerImage = [UIImage
imageNamed:@"QRCodebottomLeft"];
//底部view
UIImageView *downView_image = [[UIImageView
alloc] initWithFrame:CGRectMake(CGRectGetMaxX(leftView.frame)
- cornerImage.size.width /
2.0, CGRectGetMinY(downView.frame) - cornerImage.size.height
/ 2.0, cornerImage.size.width, cornerImage.size.height)];
downView_image.image = cornerImage;
//downView.backgroundColor = [UIColor blackColor];
[self.view
addSubview:downView_image];
cornerImage = [UIImage
imageNamed:@"QRCodebottomRight"];
UIImageView *downViewRight_image = [[UIImageView
alloc] initWithFrame:CGRectMake(CGRectGetMinX(rightView.frame)
- cornerImage.size.width /
2.0, CGRectGetMinY(downView.frame) - cornerImage.size.height
/ 2.0, cornerImage.size.width, cornerImage.size.height)];
downViewRight_image.image = cornerImage;
//downView.backgroundColor = [UIColor blackColor];
[self.view
addSubview:downViewRight_image];
//说明label
UILabel *labIntroudction = [[UILabel
alloc] init];
labIntroudction.backgroundColor = [UIColor
clearColor];
labIntroudction.frame =
CGRectMake(CGRectGetMaxX(leftView.frame),
CGRectGetMinY(downView.frame) +
25, kReaderViewWidth,
20);
labIntroudction.textAlignment =
NSTextAlignmentCenter;
labIntroudction.font = [UIFont
boldSystemFontOfSize:13.0];
labIntroudction.textColor = [UIColor
whiteColor];
labIntroudction.text =
@"将二维码置于框内,即可自动扫描";
[self.view
addSubview:labIntroudction];
UIView *scanCropView = [[UIView
alloc] initWithFrame:CGRectMake(CGRectGetMaxX(leftView.frame)
- 1,kLineMinY,self.view.frame.size.width
- 2 * CGRectGetMaxX(leftView.frame) +
2, kReaderViewHeight +
2)];
scanCropView.layer.borderColor = [UIColor
greenColor].CGColor;
scanCropView.layer.borderWidth =
2.0;
[self.view
addSubview:scanCropView];
}
#pragma mark -
#pragma mark 输出代理方法
//此方法是在识别到QRCode，并且完成转换
//如果QRCode的内容越大，转换需要的时间就越长
- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray
*)metadataObjects fromConnection:(AVCaptureConnection *)connection
{
//扫描结果
if (metadataObjects.count >
0)
{
[self
stopSYQRCodeReading];
AVMetadataMachineReadableCodeObject *obj = metadataObjects[0];
if (obj.stringValue && ![obj.stringValue
isEqualToString:@""] && obj.stringValue.length
> 0)
{
NSLog(@"---------%@",obj.stringValue);
if ([obj.stringValue
containsString:@"http"])
{
if (self.SYQRCodeSuncessBlock) {
self.SYQRCodeSuncessBlock(self,obj.stringValue);
}
}
else
{
if (self.SYQRCodeFailBlock) {
self.SYQRCodeFailBlock(self);
}
}
}
else
{
if (self.SYQRCodeFailBlock) {
self.SYQRCodeFailBlock(self);
}
}
}
else
{
if (self.SYQRCodeFailBlock)
{
self.SYQRCodeFailBlock(self);
}
}
}
#pragma mark -
#pragma mark 交互事件
- (void)startSYQRCodeReading
{
_lineTimer = [NSTimer
scheduledTimerWithTimeInterval:1.0 /
20 target:self
selector:@selector(animationLine)
userInfo:nil
repeats:YES];
[self.qrSession
startRunning];
NSLog(@"start reading");
}
- (void)stopSYQRCodeReading
{
if (_lineTimer)
{
[_lineTimer
invalidate];
_lineTimer =
nil;
}
[self.qrSession
stopRunning];
NSLog(@"stop reading");
}
//取消扫描
- (void)cancleSYQRCodeReading
{
[self
stopSYQRCodeReading];
if (self.SYQRCodeCancleBlock)
{
self.SYQRCodeCancleBlock(self);
}
NSLog(@"cancle reading");
}
#pragma mark -
#pragma mark 上下滚动交互线
- (void)animationLine
{
__block
CGRect frame = _line.frame;
static
BOOL flag = YES;
if (flag)
{
frame.origin.y =
kLineMinY;
flag = NO;
[UIView
animateWithDuration:1.0 /
20 animations:^{
frame.origin.y +=
5;
_line.frame = frame;
} completion:nil];
}
else
{
if (_line.frame.origin.y
>= kLineMinY)
{
if (_line.frame.origin.y
>= kLineMaxY - 12)
{
frame.origin.y =
kLineMinY;
_line.frame = frame;
flag = YES;
}
else
{
[UIView
animateWithDuration:1.0 /
20 animations:^{
frame.origin.y +=
5;
_line.frame = frame;
} completion:nil];
}
}
else
{
flag = !flag;
}
}
//NSLog(@"_line.frame.origin.y==%f",_line.frame.origin.y);
}
@end
//打开摄像头并扫描
- (IBAction)saomiaoAction:(id)sender
{
//扫描二维码
SYQRCodeViewController *qrcodevc = [[SYQRCodeViewController
alloc]
init];
qrcodevc.SYQRCodeSuncessBlock = ^(SYQRCodeViewController *aqrvc,NSString
*qrString){
self.saomiaoLabel.text = qrString;
[aqrvc dismissViewControllerAnimated:NO
completion:nil];
};
qrcodevc.SYQRCodeFailBlock = ^(SYQRCodeViewController *aqrvc){
self.saomiaoLabel.text =
@"fail~";
[aqrvc dismissViewControllerAnimated:NO
completion:nil];
};
qrcodevc.SYQRCodeCancleBlock = ^(SYQRCodeViewController *aqrvc){
[aqrvc dismissViewControllerAnimated:NO
completion:nil];
self.saomiaoLabel.text =
@"cancle~";
};
[self
presentViewController:qrcodevc
animated:YES
completion:nil];
}
// SYQRCodeViewController.h
// SYQRCodeDemo
//
// Created by sunbb on 15-1-9.
// Copyright (c) 2015年 SY. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface SYQRCodeViewController :
UIViewController
@property (nonatomic,
copy) void (^SYQRCodeCancleBlock) (SYQRCodeViewController *);//扫描取消
@property (nonatomic,
copy) void (^SYQRCodeSuncessBlock) (SYQRCodeViewController *,NSString
*);//扫描结果
@property (nonatomic,
copy) void (^SYQRCodeFailBlock) (SYQRCodeViewController *);//扫描失败
@end
//
// SYQRCodeViewController.m
// SYQRCodeDemo
//
// Created by sunbb on 15-1-9.
// Copyright (c) 2015年 SY. All rights reserved.
//
#import "SYQRCodeViewController.h"
#import <AVFoundation/AVFoundation.h>
//设备宽/高/坐标
#define kDeviceWidth [UIScreen mainScreen].bounds.size.width
#define KDeviceHeight [UIScreen mainScreen].bounds.size.height
#define KDeviceFrame [UIScreen mainScreen].bounds
static const
float kLineMinY =
185;
static const
float kLineMaxY =
385;
static const
float kReaderViewWidth =
200;
static const
float kReaderViewHeight =
200;
@interface
SYQRCodeViewController () <AVCaptureMetadataOutputObjectsDelegate>
@property (nonatomic,
strong) AVCaptureSession *qrSession;//回话
@property (nonatomic,
strong) AVCaptureVideoPreviewLayer *qrVideoPreviewLayer;//读取
@property (nonatomic,
strong) UIImageView *line;//交互线
@property (nonatomic,
strong) NSTimer *lineTimer;//交互线控制
@end
@implementation SYQRCodeViewController
- (void)viewDidLoad
{
[super
viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor
whiteColor];
[self
initUI];
[self
setOverlayPickerView];
[self
startSYQRCodeReading];
[self
initTitleView];
[self
createBackBtn];
}
- (void)dealloc
{
if (_qrSession) {
[_qrSession
stopRunning];
_qrSession =
nil;
}
if (_qrVideoPreviewLayer) {
_qrVideoPreviewLayer =
nil;
}
if (_line) {
_line =
nil;
}
if (_lineTimer)
{
[_lineTimer
invalidate];
_lineTimer =
nil;
}
}
- (void)initTitleView
{
UIView *bgView = [[UIView
alloc] initWithFrame:CGRectMake(0,0,kDeviceWidth,
64)];
bgView.backgroundColor = [UIColor
colorWithRed:62.0/255
green:199.0/255
blue:153.0/255
alpha:1.0];
[self.view
addSubview:bgView];
UILabel *titleLab = [[UILabel
alloc] initWithFrame:CGRectMake((kDeviceWidth
- 40) / 2.0,
28, 40,
20)];
//scanCropView.image=[UIImage imageNamed:@""];
//titleLab.layer.borderColor = [UIColor greenColor].CGColor;
//titleLab.layer.borderWidth = 2.0;
//titleLab.backgroundColor = [UIColor colorWithRed:62.0/255 green:199.0/255 blue:153.0/255 alpha:1.0];
titleLab.text =
@"扫题";
titleLab.shadowColor = [UIColor
lightGrayColor];
titleLab.shadowOffset =
CGSizeMake(0, -
1);
titleLab.font = [UIFont
boldSystemFontOfSize:18.0];
titleLab.textColor = [UIColor
whiteColor];
titleLab.textAlignment =
NSTextAlignmentCenter;
[self.view
addSubview:titleLab];
}
- (void)createBackBtn
{
UIButton *btn = [UIButton
buttonWithType:UIButtonTypeCustom];
[btn setFrame:CGRectMake(20,
28, 60,
24)];
[btn setImage:[UIImage
imageNamed:@"bar_back"]
forState:UIControlStateNormal];
[btn addTarget:self
action:@selector(cancleSYQRCodeReading)
forControlEvents:UIControlEventTouchUpInside];
[self.view
addSubview:btn];
}
- (void)initUI
{
AVCaptureDevice *device = [AVCaptureDevice
defaultDeviceWithMediaType:AVMediaTypeVideo];
//摄像头判断
NSError *error =
nil;
AVCaptureDeviceInput *input = [AVCaptureDeviceInput
deviceInputWithDevice:device
error:&error];
if (error)
{
NSLog(@"没有摄像头-%@",
error.localizedDescription);
return;
}
//设置输出(Metadata元数据)
AVCaptureMetadataOutput *output = [[AVCaptureMetadataOutput
alloc]
init];
//设置输出的代理
//使用主线程队列，相应比较同步，使用其他队列，相应不同步，容易让用户产生不好的体验
[output setMetadataObjectsDelegate:self
queue:dispatch_get_main_queue()];
[output setRectOfInterest:[self
getReaderViewBoundsWithSize:CGSizeMake(kReaderViewWidth,
kReaderViewHeight)]];
//拍摄会话
AVCaptureSession *session = [[AVCaptureSession
alloc]
init];
// 读取质量，质量越高，可读取小尺寸的二维码
if ([session
canSetSessionPreset:AVCaptureSessionPreset1920x1080])
{
[session setSessionPreset:AVCaptureSessionPreset1920x1080];
}
else
if ([session
canSetSessionPreset:AVCaptureSessionPreset1280x720])
{
[session setSessionPreset:AVCaptureSessionPreset1280x720];
}
else
{
[session setSessionPreset:AVCaptureSessionPresetPhoto];
}
if ([session
canAddInput:input])
{
[session addInput:input];
}
if ([session
canAddOutput:output])
{
[session addOutput:output];
}
//设置输出的格式
//一定要先设置会话的输出为output之后，再指定输出的元数据类型
[output setMetadataObjectTypes:@[AVMetadataObjectTypeQRCode]];
//设置预览图层
AVCaptureVideoPreviewLayer *preview = [AVCaptureVideoPreviewLayer
layerWithSession:session];
//设置preview图层的属性
//preview.borderColor = [UIColor redColor].CGColor;
//preview.borderWidth = 1.5;
[preview setVideoGravity:AVLayerVideoGravityResizeAspectFill];
//设置preview图层的大小
preview.frame =
self.view.layer.bounds;
//[preview setFrame:CGRectMake(0, 0, kDeviceWidth, KDeviceHeight)];
//将图层添加到视图的图层
[self.view.layer
insertSublayer:preview
atIndex:0];
//[self.view.layer addSublayer:preview];
self.qrVideoPreviewLayer = preview;
self.qrSession = session;
}
- (CGRect)getReaderViewBoundsWithSize:(CGSize)asize
{
return
CGRectMake(kLineMinY /
KDeviceHeight, ((kDeviceWidth - asize.width) /
2.0) /
kDeviceWidth, asize.height /
KDeviceHeight, asize.width /
kDeviceWidth);
}
- (void)setOverlayPickerView
{
//画中间的基准线
_line = [[UIImageView
alloc] initWithFrame:CGRectMake((kDeviceWidth
- 300) / 2.0,
kLineMinY, 300,
12 * 300 /
320.0)];
[_line
setImage:[UIImage
imageNamed:@"QRCodeLine"]];
[self.view
addSubview:_line];
//最上部view
UIView* upView = [[UIView
alloc] initWithFrame:CGRectMake(0,
0, kDeviceWidth,
kLineMinY)];//80
upView.alpha =
0.3;
upView.backgroundColor = [UIColor
blackColor];
[self.view
addSubview:upView];
//左侧的view
UIView *leftView = [[UIView
alloc]
initWithFrame:CGRectMake(0,
kLineMinY, (kDeviceWidth -
kReaderViewWidth) /
2.0, kReaderViewHeight)];
leftView.alpha =
0.3;
leftView.backgroundColor = [UIColor
blackColor];
[self.view
addSubview:leftView];
//右侧的view
UIView *rightView = [[UIView
alloc] initWithFrame:CGRectMake(kDeviceWidth
- CGRectGetMaxX(leftView.frame),
kLineMinY, CGRectGetMaxX(leftView.frame),
kReaderViewHeight)];
rightView.alpha =
0.3;
rightView.backgroundColor = [UIColor
blackColor];
[self.view
addSubview:rightView];
CGFloat space_h =
KDeviceHeight - kLineMaxY;
//底部view
UIView *downView = [[UIView
alloc] initWithFrame:CGRectMake(0,
kLineMaxY, kDeviceWidth, space_h)];
downView.alpha =
0.3;
downView.backgroundColor = [UIColor
blackColor];
[self.view
addSubview:downView];
//四个边角
UIImage *cornerImage = [UIImage
imageNamed:@"QRCodeTopLeft"];
//左侧的view
UIImageView *leftView_image = [[UIImageView
alloc] initWithFrame:CGRectMake(CGRectGetMaxX(leftView.frame)
- cornerImage.size.width /
2.0, CGRectGetMaxY(upView.frame) - cornerImage.size.height
/ 2.0, cornerImage.size.width, cornerImage.size.height)];
leftView_image.image = cornerImage;
[self.view
addSubview:leftView_image];
cornerImage = [UIImage
imageNamed:@"QRCodeTopRight"];
//右侧的view
UIImageView *rightView_image = [[UIImageView
alloc] initWithFrame:CGRectMake(CGRectGetMinX(rightView.frame)
- cornerImage.size.width /
2.0, CGRectGetMaxY(upView.frame) - cornerImage.size.height
/ 2.0, cornerImage.size.width, cornerImage.size.height)];
rightView_image.image = cornerImage;
[self.view
addSubview:rightView_image];
cornerImage = [UIImage
imageNamed:@"QRCodebottomLeft"];
//底部view
UIImageView *downView_image = [[UIImageView
alloc] initWithFrame:CGRectMake(CGRectGetMaxX(leftView.frame)
- cornerImage.size.width /
2.0, CGRectGetMinY(downView.frame) - cornerImage.size.height
/ 2.0, cornerImage.size.width, cornerImage.size.height)];
downView_image.image = cornerImage;
//downView.backgroundColor = [UIColor blackColor];
[self.view
addSubview:downView_image];
cornerImage = [UIImage
imageNamed:@"QRCodebottomRight"];
UIImageView *downViewRight_image = [[UIImageView
alloc] initWithFrame:CGRectMake(CGRectGetMinX(rightView.frame)
- cornerImage.size.width /
2.0, CGRectGetMinY(downView.frame) - cornerImage.size.height
/ 2.0, cornerImage.size.width, cornerImage.size.height)];
downViewRight_image.image = cornerImage;
//downView.backgroundColor = [UIColor blackColor];
[self.view
addSubview:downViewRight_image];
//说明label
UILabel *labIntroudction = [[UILabel
alloc] init];
labIntroudction.backgroundColor = [UIColor
clearColor];
labIntroudction.frame =
CGRectMake(CGRectGetMaxX(leftView.frame),
CGRectGetMinY(downView.frame) +
25, kReaderViewWidth,
20);
labIntroudction.textAlignment =
NSTextAlignmentCenter;
labIntroudction.font = [UIFont
boldSystemFontOfSize:13.0];
labIntroudction.textColor = [UIColor
whiteColor];
labIntroudction.text =
@"将二维码置于框内,即可自动扫描";
[self.view
addSubview:labIntroudction];
UIView *scanCropView = [[UIView
alloc] initWithFrame:CGRectMake(CGRectGetMaxX(leftView.frame)
- 1,kLineMinY,self.view.frame.size.width
- 2 * CGRectGetMaxX(leftView.frame) +
2, kReaderViewHeight +
2)];
scanCropView.layer.borderColor = [UIColor
greenColor].CGColor;
scanCropView.layer.borderWidth =
2.0;
[self.view
addSubview:scanCropView];
}
#pragma mark -
#pragma mark 输出代理方法
//此方法是在识别到QRCode，并且完成转换
//如果QRCode的内容越大，转换需要的时间就越长
- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray
*)metadataObjects fromConnection:(AVCaptureConnection *)connection
{
//扫描结果
if (metadataObjects.count >
0)
{
[self
stopSYQRCodeReading];
AVMetadataMachineReadableCodeObject *obj = metadataObjects[0];
if (obj.stringValue && ![obj.stringValue
isEqualToString:@""] && obj.stringValue.length
> 0)
{
NSLog(@"---------%@",obj.stringValue);
if ([obj.stringValue
containsString:@"http"])
{
if (self.SYQRCodeSuncessBlock) {
self.SYQRCodeSuncessBlock(self,obj.stringValue);
}
}
else
{
if (self.SYQRCodeFailBlock) {
self.SYQRCodeFailBlock(self);
}
}
}
else
{
if (self.SYQRCodeFailBlock) {
self.SYQRCodeFailBlock(self);
}
}
}
else
{
if (self.SYQRCodeFailBlock)
{
self.SYQRCodeFailBlock(self);
}
}
}
#pragma mark -
#pragma mark 交互事件
- (void)startSYQRCodeReading
{
_lineTimer = [NSTimer
scheduledTimerWithTimeInterval:1.0 /
20 target:self
selector:@selector(animationLine)
userInfo:nil
repeats:YES];
[self.qrSession
startRunning];
NSLog(@"start reading");
}
- (void)stopSYQRCodeReading
{
if (_lineTimer)
{
[_lineTimer
invalidate];
_lineTimer =
nil;
}
[self.qrSession
stopRunning];
NSLog(@"stop reading");
}
//取消扫描
- (void)cancleSYQRCodeReading
{
[self
stopSYQRCodeReading];
if (self.SYQRCodeCancleBlock)
{
self.SYQRCodeCancleBlock(self);
}
NSLog(@"cancle reading");
}
#pragma mark -
#pragma mark 上下滚动交互线
- (void)animationLine
{
__block
CGRect frame = _line.frame;
static
BOOL flag = YES;
if (flag)
{
frame.origin.y =
kLineMinY;
flag = NO;
[UIView
animateWithDuration:1.0 /
20 animations:^{
frame.origin.y +=
5;
_line.frame = frame;
} completion:nil];
}
else
{
if (_line.frame.origin.y
>= kLineMinY)
{
if (_line.frame.origin.y
>= kLineMaxY - 12)
{
frame.origin.y =
kLineMinY;
_line.frame = frame;
flag = YES;
}
else
{
[UIView
animateWithDuration:1.0 /
20 animations:^{
frame.origin.y +=
5;
_line.frame = frame;
} completion:nil];
}
}
else
{
flag = !flag;
}
}
//NSLog(@"_line.frame.origin.y==%f",_line.frame.origin.y);
}
@end
//打开摄像头并扫描
- (IBAction)saomiaoAction:(id)sender
{
//扫描二维码
SYQRCodeViewController *qrcodevc = [[SYQRCodeViewController
alloc]
init];
qrcodevc.SYQRCodeSuncessBlock = ^(SYQRCodeViewController *aqrvc,NSString
*qrString){
self.saomiaoLabel.text = qrString;
[aqrvc dismissViewControllerAnimated:NO
completion:nil];
};
qrcodevc.SYQRCodeFailBlock = ^(SYQRCodeViewController *aqrvc){
self.saomiaoLabel.text =
@"fail~";
[aqrvc dismissViewControllerAnimated:NO
completion:nil];
};
qrcodevc.SYQRCodeCancleBlock = ^(SYQRCodeViewController *aqrvc){
[aqrvc dismissViewControllerAnimated:NO
completion:nil];
self.saomiaoLabel.text =
@"cancle~";
};
[self
presentViewController:qrcodevc
animated:YES
completion:nil];
}
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