Scan barcodes for product information (IOS development)

One. Import ZBARSDK and its dependent libraries (this is not the focus of this article)

1, Https://github.com/bmorton/ZBarSDK 2, import header file #import "ZBarSDK.h" to implement delegate events <ZBarReaderDelegate>

Two. Specific methods

1.VIEWCONTROLLER.M file

#import "ViewController.h"

#import "ZBarSDK.h"

#import "AFNetworking.h"

#import "ZbarOverlayView.h"

@interface Viewcontroller () <ZBarReaderDelegate>

{

Zbarreaderview * Reader;

Zbaroverlayview *_overlayview;

}

@property (Weak, nonatomic) Iboutlet Uiimageview *imageview;

@property (Weak, nonatomic) Iboutlet UILabel *goods_name;

@property (Weak, nonatomic) Iboutlet UILabel *goods_code;

@property (Weak, nonatomic) Iboutlet UILabel *manuname;

@end

@implementation Viewcontroller

-(Ibaction) DIDBT: (UIButton *) Sender {

Reader.hidden = NO;

}

Scan Success Callback method

-(void) Imagepickercontroller: (Uiimagepickercontroller *) Picker Didfinishpickingmediawithinfo: (NSDictionary *) info

{

ID results = [info objectforkey:zbarreadercontrollerresults];

Zbarsymbol * symbol;

for (symbol in results)

Break

_imageview.image = [info objectforkey:uiimagepickercontrolleroriginalimage];

[Picker Dismissviewcontrolleranimated:yes Completion:nil];

NSLog (@ "%@%u----%@----%d", symbol.data,symbol.type,symbol.typename,symbol.count);

Scan results Get Product number

[Self httpCode:symbol.data];

}

Use afnetworking POST request to get product information (for many examples on afnetworking web)

-(void) Httpcode: (NSString *) code{

Method One

/* China Commodity Information Service Platform

Http://search.anccnet.com/searchResult2.aspx

*/

/*

Method One: China commodity information Service Platform

Http://search.anccnet.com/searchResult2.aspx

Method Two: Afanda data platform

Http://api.avatardata.cn/Barcode/Lookup

This example uses method two

*/

Request Path

NSString * urlstring = @ "Http://api.avatardata.cn/Barcode/Lookup";

Afhttpsessionmanager *manager = [Afhttpsessionmanager manager];

Set return type

Manager.responseserializer = [Afhttpresponseserializer serializer];

Manager.responseSerializer.acceptableContentTypes = [Nsset setwithobjects:@ "Application/json", nil];

Request parameter Settings

Nsdictionary *dict = @{@ "key": @ "317acbbe2ec74dbdbe880d90cffaf65d",

@ "Barcode": Code,

};

2. Send Request

[Manager post:urlstring Parameters:dict progress:^ (nsprogress * _nonnull downloadprogress) {

} success:^ (Nsurlsessiondatatask * _nonnull task, id _nullable responseobject) {

nsdictionary* JSON = [nsjsonserialization

Jsonobjectwithdata:responseobject

Options:kniloptions

Error:nil];

NSLog (@ "----------%@----%@", Responseobject,json);

if ([[JSON objectforkey:@ "Error_code"] integervalue] = = 0) {

Self.goods_name.text = [JSON objectforkey:@ "result"][@ "goodsname"];

Self.goods_code.text = [JSON objectforkey:@ "result"][@ "code"];

Self.manuName.text = [JSON objectforkey:@ "result"][@ "manuname"];

Reader.hidden = YES;

}

} failure:^ (Nsurlsessiondatatask * _nullable task, Nserror * _nonnull error) {

NSLog (@ "%@", error);

}];

}

-(void) Viewdidload {

[Super Viewdidload];

Additional setup after loading the view, typically from a nib.

[Self init_camera];

}

-(void) Init_camera

{

reader = [Zbarreaderview new];

Zbarimagescanner * scanner = [Zbarimagescanner new];

[Scanner setsymbology:zbar_partial config:0 to:0];

[Reader Initwithimagescanner:scanner];

Reader.readerdelegate = self;

const float h = [UIScreen mainscreen].bounds.size.height;

const float W = [UIScreen mainscreen].bounds.size.width;

const float h_padding = 0.20*w;

const float v_padding = 60;

CGRect reader_rect = CGRectMake (h_padding, v_padding,

W * 0.6, W * 0.6);//a small block in the view, preferably in the center of the area

CGRect reader_rect1 = CGRectMake (0, 0, W, h);//Full Screen mode

Reader.frame = Reader_rect1;

Reader.backgroundcolor = [Uicolor Redcolor];

[Reader start];

[Self.view Addsubview:reader];

_overlayview = [[Zbaroverlayview alloc]initwithframe:reader.frame];//Add Overlay view

[_overlayview startanimation];

_overlayview.transparentarea = reader_rect;//Set the middle optional box size

[Reader Addsubview:_overlayview];

Reader.scancrop = [Self getscancrop:reader_rect readerviewbounds:reader_rect1];;/ /CGRectMake (100/h,0.5, 1/3.0,0.4);

}

-(CGRect) Getscancrop: (cgrect) rect readerviewbounds: (cgrect) readerviewbounds

{

CGFloat fullwidth = readerViewBounds.size.width;

CGFloat fullheight = readerViewBounds.size.height;

CGFloat x,y,width,height;

x = rect.origin.x;

y = rect.origin.y;

width = rect.size.width;

Height = rect.size.height;

if (x + width > Fullwidth) {

if (Width > Fullwidth) {

width = Fullwidth;

}else{

x = 0;

}

}

if (y + height > fullheight) {

if (height > fullheight) {

Height = fullheight;

}else{

y = 0;

}

}

CGFloat x1,y1,width1,height1;

X1 = (fullwidth-width-x)/fullwidth;

y1 = y/fullheight;

Width1 = Width/fullwidth;

height1 = Rect.size.height/readerviewbounds.size.height;

NSLog (@ "frame:%@", Nsstringfromcgrect (CGRectMake (Y1, x1,height1, width1)));

Return CGRectMake (y1, x1,height1, width1);

}

-(void) Readerview: (Zbarreaderview *) Readerview didreadsymbols: (Zbarsymbolset *) symbols FromImage: (UIImage *) image

{

Zbarsymbol * s = nil;

for (s in symbols)

{

NSLog (@ "----%@", s.data);

Self.goods_code.text = S.data;

_imageview.image = image;

Scan results Get Product number

[Self httpcode:s.data];

Break

}

}

-(void) Viewdiddisappear: (BOOL) animated

{

[Super viewdiddisappear:animated];

[_overlayview stopanimation];

}

Three. Achieve results

Four. Contact us if you have any questions.

1. Email: [Email protected]

2.qq:282020508

Scan barcodes for product information (IOS development)