Scanning two-dimensional code control package IOS implementation _ios

Scan two-dimensional code effects

Source: Https://github.com/YouXianMing/Animations

QRCodeView.h//QRCode////Created by youxianming on 16/7/7. copyright©2016 years xianming you.
All rights reserved.

#import <UIKit/UIKit.h> #import <AVFoundation/AVFoundation.h> @class Qrcodeview; @protocol qrcodeviewdelegate <NSObject> @optional/** * get QR Scan results * * @param codeview qrcodeview entity objects * @param

Codestring Scan String */(void) Qrcodeview: (Qrcodeview *) CodeView codestring: (NSString *) codestring;

@end @interface Qrcodeview:uiview/** * Agent */@property (nonatomic, weak) ID <QRCodeViewDelegate> delegate;

/** * The state of the lamp, the default is closed * * * * @property (nonatomic) Avcapturetorchmode Torchmode;

/** * Sensitive area, if not set, for all scanning area * * * @property (nonatomic) CGRect Interestarea;

/** * You use to add a custom control to the view, the dimensions are in line with the currently initialized view * * * * * @property (nonatomic, strong) UIView *contentview;

/** * is under Operation * * * @property (nonatomic, readonly) BOOL isrunning;

/** * Start Scanning * * @return If successful, return yes, otherwise return no * * *-(BOOL) start;

/** * End Scan/-(void) stop;

 @end

QRCODEVIEW.M//QRCode////Created by youxianming on 16/7/7. copyright©2016 years xianming you.
All rights reserved. #import "QRCodeView.h" @interface Qrcodeview () <AVCaptureMetadataOutputObjectsDelegate> @property (nonatomic
) BOOL isrunning;

@property (nonatomic, strong) UIView *videoview;
@property (nonatomic, strong) Avcapturedeviceinput *deviceinput;
@property (nonatomic, strong) Avcapturedevice *capturedevice;
@property (nonatomic, strong) avcapturesession *capturesession;
@property (nonatomic, strong) Avcapturevideopreviewlayer *videopreviewlayer;

@property (nonatomic, strong) Avcapturemetadataoutput *capturemetadataoutput;  @end @implementation Qrcodeview-(Instancetype) initWithFrame: (CGRect) Frame {if (self = [super Initwithframe:frame])
  {Self.videoview = [[UIView alloc] initWithFrame:self.bounds];
  
  [Self addSubview:self.videoView];
  Self.contentview = [[UIView alloc] initWithFrame:self.bounds]; [Self addsubview:self. Contentview];
  
  Self.capturedevice = [Avcapturedevice defaultdevicewithmediatype:avmediatypevideo];
  
  _torchmode = Avcapturetorchmodeoff;
 [Self addnotificationcenter];
return self;

} #pragma mark-nsnotificationcenter related. -(void) Addnotificationcenter {[[Nsnotificationcenter defaultcenter] addobserver:self selector: @selector (n Otificationcenterevent:) name:avcaptureinputportformatdescriptiondidchangenotification Object:nil
]; }-(void) Removenotificationcenter {[[Nsnotificationcenter Defaultcenter] removeobserver:self name:AVCap
Tureinputportformatdescriptiondidchangenotification Object:nil]; }-(void) Notificationcenterevent: (Nsnotification *) Sender {if (self.interestArea.size.width && self.interest Area.size.height) {self.captureMetadataOutput.rectOfInterest = [self.videopreviewlayer
  
 MetadataOutputRectOfInterestForRect:self.interestArea]; else {Self.capturemetaDataoutput.rectofinterest = CGRectMake (0, 0, 1, 1);

}} #pragma Mark-start & Stop.
 -(BOOL) Start {//Initialize input stream BOOL result = NO;
 Nserror *error = nil;
 Self.deviceinput = [Avcapturedeviceinput deviceInputWithDevice:self.captureDevice error:&error];
  if (self.deviceinput = = nil) {NSLog (@ "%@", error);
 return result;
 
 ///Create Session self.capturesession = [[Avcapturesession alloc] init];
 
 Add input stream [self.capturesession addInput:self.deviceInput];
 
 Initialize output stream self.capturemetadataoutput = [[Avcapturemetadataoutput alloc] init];
 
 Add output stream [self.capturesession addOutput:self.captureMetadataOutput];
 Create a queue.
 [Self.capturemetadataoutput setmetadataobjectsdelegate:self queue:dispatch_queue_create (nil, nil)];
 
 Self.captureMetadataOutput.metadataObjectTypes = @[avmetadataobjecttypeqrcode];
 Create output object self.videopreviewlayer = [[Avcapturevideopreviewlayer alloc] initWithSession:self.captureSession]; Self.videoPreviewLayer.videoGravity = AvlayervideogravityresIzeaspectfill;
 Self.videoPreviewLayer.frame = Self.contentView.bounds;
 
 [Self.videoView.layer AddSublayer:self.videoPreviewLayer];
 Start [Self.capturesession startrunning];
 self.isrunning = YES;
 
 result = YES;
return result;
 }-(void) Stop {[self.capturesession stoprunning];
 self.isrunning = NO;
Self.capturesession = nil; } #pragma mark-avcapturemetadataoutputobjectsdelegate-(void) Captureoutput: (Avcaptureoutput *) captureoutput Didoutputmetadataobjects: (Nsarray *) metadataobjects fromconnection: (avcaptureconnection *) connection {if (MetadataO
  Bjects.count > 0) {avmetadatamachinereadablecodeobject *metadata = Metadataobjects.firstobject;
  
  NSString *result = nil;
   
   if ([Metadata.type Isequaltostring:avmetadataobjecttypeqrcode]) {result = Metadata.stringvalue; if (_delegate && [_delegate respondstoselector: @selector (qrcodeview:codestring:)]) {[_delegate Qrcodevie
   W:self Codestring:result]; #pragm}}}}A Mark-setter & Getter.
 
 -(void) Settorchmode: (Avcapturetorchmode) torchmode {_torchmode = Torchmode;
  if (_deviceinput && [Self.capturedevice Hastorch]) {[Self.capturedevice lockforconfiguration:nil];
  [Self.capturedevice Settorchmode:torchmode];
 [Self.capturedevice unlockforconfiguration];

}} #pragma Mark-system method.
 -(void) Dealloc {[Self stop];
[Self removenotificationcenter];

 } @end

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