ios二维码扫描开发,ios二维码扫描功能

IOS利用AVFoundation框架进行二维码扫描开发，扫描完成后，显示了个二维码图片，卡在这个界面上好久

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ios开发中有没有一种技术能在二维码中间嵌套一个二维码让相机能够识别区分这两个二维码呢

可以实现的，二维码包含的信息是由你控制的，对这两个二维码做不同标示，扫描时根据这个标示做个判断就可以实现

iOS做扫描二维码界面，有什么第三方框架可以用

/

// 头文件

// TestProject

//

#import UIKit/UIKit.h

#import "ZBarSDK.h"

@interface yxpQrCode : UIViewController

@end

//

// 实现文件

// TestProject

//

#import "yxpQrCode.h"

#define SCANVIEW_EdgeTop 40.0

#define SCANVIEW_EdgeLeft 50.0

#define TINTCOLOR_ALPHA 0.2 //浅色透明度

#define DARKCOLOR_ALPHA 0.5 //深色透明度

@interface yxpQrCode () ZBarReaderViewDelegate

{

UIView *_QrCodeline;

NSTimer *_timer;

//设置扫描画面

UIView *_scanView;

ZBarReaderView *_readerView;

}

@end

@implementation yxpQrCode

- ( id )initWithNibName:( NSString *)nibNameOrNil bundle:( NSBundle*)nibBundleOrNil

{

self = [ super initWithNibName :nibNameOrNil bundle :nibBundleOrNil];

if ( self ) {

// Custom initialization

}

return self ;

}

- ( void )viewDidLoad

{

[ super viewDidLoad ];

self . title = @"扫描二维码" ;

//初始化扫描界面

[ self setScanView ];

_readerView = [[ ZBarReaderView alloc ] init ];

_readerView . frame = CGRectMake ( 0 , 64 , VIEW_WIDTH , VIEW_HEIGHT - 64 );

_readerView . tracksSymbols = NO ;

_readerView . readerDelegate = self ;

[ _readerView addSubview : _scanView ];

//关闭闪光灯

_readerView . torchMode = 0 ;

[ self . view addSubview : _readerView ];

//扫描区域

//readerView.scanCrop =

[ _readerView start ];

[ self createTimer ];

}

#pragma mark -- ZBarReaderViewDelegate

-( void )readerView:( ZBarReaderView *)readerView didReadSymbols:( ZBarSymbolSet*)symbols fromImage:( UIImage *)image

{

const zbar_symbol_t *symbol = zbar_symbol_set_first_symbol (symbols.zbarSymbolSet );

NSString *symbolStr = [ NSString stringWithUTF8String : zbar_symbol_get_data(symbol)];

//判断是否包含 头'http:'

NSString *regex = @"http+:[^//s]*" ;

NSPredicate *predicate = [ NSPredicate predicateWithFormat : @"SELF MATCHES %@",regex];

UIAlertView *alertView=[[ UIAlertView alloc ] initWithTitle : @"" message:symbolStr delegate : nil cancelButtonTitle : @"取消" otherButtonTitles : nil ];

[alertView show ];

//判断是否包含 头'ssid:'

NSString *ssid = @"ssid+:[^//s]*" ;;

NSPredicate *ssidPre = [ NSPredicate predicateWithFormat : @"SELF MATCHES %@",ssid];

if ([predicate evaluateWithObject :symbolStr]) {

}

else if ([ssidPre evaluateWithObject :symbolStr]){

NSArray *arr = [symbolStr componentsSeparatedByString : @";" ];

NSArray * arrInfoHead = [[arr objectAtIndex : 0 ]componentsSeparatedByString : @":" ];

NSArray * arrInfoFoot = [[arr objectAtIndex : 1 ]componentsSeparatedByString : @":" ];

symbolStr = [ NSString stringWithFormat : @"ssid: %@ /n password:%@" ,

[arrInfoHead objectAtIndex : 1 ],[arrInfoFoot objectAtIndex : 1 ]];

UIPasteboard *pasteboard=[ UIPasteboard generalPasteboard ];

//然后，可以使用如下代码来把一个字符串放置到剪贴板上：

pasteboard. string = [arrInfoFoot objectAtIndex : 1 ];

}

}

//二维码的扫描区域

- ( void )setScanView

{

_scanView =[[ UIView alloc ] initWithFrame : CGRectMake ( 0 , 0 , VIEW_WIDTH, VIEW_HEIGHT - 64 )];

_scanView . backgroundColor =[ UIColor clearColor ];

//最上部view

UIView * upView = [[ UIView alloc ] initWithFrame : CGRectMake ( 0 , 0 ,VIEW_WIDTH , SCANVIEW_EdgeTop )];

upView. alpha = TINTCOLOR_ALPHA ;

upView. backgroundColor = [ UIColor blackColor ];

[ _scanView addSubview :upView];

//左侧的view

UIView *leftView = [[ UIView alloc ] initWithFrame : CGRectMake ( 0 ,SCANVIEW_EdgeTop , SCANVIEW_EdgeLeft , VIEW_WIDTH - 2 * SCANVIEW_EdgeLeft )];

leftView. alpha = TINTCOLOR_ALPHA ;

leftView. backgroundColor = [ UIColor blackColor ];

[ _scanView addSubview :leftView];

/******************中间扫描区域****************************/

UIImageView *scanCropView=[[ UIImageView alloc ] initWithFrame : CGRectMake (SCANVIEW_EdgeLeft , SCANVIEW_EdgeTop , VIEW_WIDTH - 2 * SCANVIEW_EdgeLeft ,VIEW_WIDTH - 2 * SCANVIEW_EdgeLeft )];

//scanCropView.image=[UIImage imageNamed:@""];

scanCropView. layer . borderColor =[ UIColor getThemeColor ]. CGColor ;

scanCropView. layer . borderWidth = 2.0 ;

scanCropView. backgroundColor =[ UIColor clearColor ];

[ _scanView addSubview :scanCropView];

//右侧的view

UIView *rightView = [[ UIView alloc ] initWithFrame : CGRectMake ( VIEW_WIDTH- SCANVIEW_EdgeLeft , SCANVIEW_EdgeTop , SCANVIEW_EdgeLeft , VIEW_WIDTH - 2 *SCANVIEW_EdgeLeft )];

rightView. alpha = TINTCOLOR_ALPHA ;

rightView. backgroundColor = [ UIColor blackColor ];

[ _scanView addSubview :rightView];

//底部view

UIView *downView = [[ UIView alloc ] initWithFrame : CGRectMake ( 0 ,VIEW_WIDTH - 2 * SCANVIEW_EdgeLeft + SCANVIEW_EdgeTop , VIEW_WIDTH , VIEW_HEIGHT-( VIEW_WIDTH - 2 * SCANVIEW_EdgeLeft + SCANVIEW_EdgeTop )- 64 )];

//downView.alpha = TINTCOLOR_ALPHA;

downView. backgroundColor = [[ UIColor blackColor ] colorWithAlphaComponent :TINTCOLOR_ALPHA ];

[ _scanView addSubview :downView];

//用于说明的label

UILabel *labIntroudction= [[ UILabel alloc ] init ];

labIntroudction. backgroundColor = [ UIColor clearColor ];

labIntroudction. frame = CGRectMake ( 0 , 5 , VIEW_WIDTH , 20 );

labIntroudction. numberOfLines = 1 ;

labIntroudction. font =[ UIFont systemFontOfSize : 15.0 ];

labIntroudction. textAlignment = NSTextAlignmentCenter ;

labIntroudction. textColor =[ UIColor whiteColor ];

labIntroudction. text = @"将二维码对准方框，即可自动扫描" ;

[downView addSubview :labIntroudction];

UIView *darkView = [[ UIView alloc ] initWithFrame : CGRectMake ( 0 , downView.frame . size . height - 100.0 , VIEW_WIDTH , 100.0 )];

darkView. backgroundColor = [[ UIColor blackColor ] colorWithAlphaComponent: DARKCOLOR_ALPHA ];

[downView addSubview :darkView];

//用于开关灯操作的button

UIButton *openButton=[[ UIButton alloc ] initWithFrame : CGRectMake ( 10 , 20 ,300.0 , 40.0 )];

[openButton setTitle : @"开启闪光灯" forState: UIControlStateNormal ];

[openButton setTitleColor :[ UIColor whiteColor ] forState :UIControlStateNormal ];

openButton. titleLabel . textAlignment = NSTextAlignmentCenter ;

openButton. backgroundColor =[ UIColor getThemeColor ];

openButton. titleLabel . font =[ UIFont systemFontOfSize : 22.0 ];

[openButton addTarget : self action : @selector (openLight) forControlEvents: UIControlEventTouchUpInside ];

[darkView addSubview :openButton];

//画中间的基准线

_QrCodeline = [[ UIView alloc ] initWithFrame : CGRectMake (SCANVIEW_EdgeLeft , SCANVIEW_EdgeTop , VIEW_WIDTH - 2 * SCANVIEW_EdgeLeft , 2 )];

_QrCodeline . backgroundColor = [ UIColor getThemeColor ];

[ _scanView addSubview : _QrCodeline ];

}

- ( void )openLight

{

if ( _readerView . torchMode == 0 ) {

_readerView . torchMode = 1 ;

} else

{

_readerView . torchMode = 0 ;

}

}

- ( void )viewWillDisappear:( BOOL )animated

{

[ super viewWillDisappear :animated];

if ( _readerView . torchMode == 1 ) {

_readerView . torchMode = 0 ;

}

[ self stopTimer ];

[ _readerView stop ];

}

//二维码的横线移动

- ( void )moveUpAndDownLine

{

CGFloat Y= _QrCodeline . frame . origin . y ;

//CGRectMake(SCANVIEW_EdgeLeft, SCANVIEW_EdgeTop, VIEW_WIDTH-2*SCANVIEW_EdgeLeft, 1)]

if (VIEW_WIDTH- 2 *SCANVIEW_EdgeLeft+SCANVIEW_EdgeTop==Y){

[UIView beginAnimations: @"asa" context: nil ];

[UIView setAnimationDuration: 1 ];

_QrCodeline.frame=CGRectMake(SCANVIEW_EdgeLeft, SCANVIEW_EdgeTop, VIEW_WIDTH- 2*SCANVIEW_EdgeLeft, 1 );

[UIView commitAnimations];

} else if (SCANVIEW_EdgeTop==Y){

[UIView beginAnimations: @"asa" context: nil ];

[UIView setAnimationDuration: 1 ];

_QrCodeline.frame=CGRectMake(SCANVIEW_EdgeLeft, VIEW_WIDTH- 2*SCANVIEW_EdgeLeft+SCANVIEW_EdgeTop, VIEW_WIDTH- 2 *SCANVIEW_EdgeLeft, 1 );

[UIView commitAnimations];

}

}

- ( void )createTimer

{

//创建一个时间计数

_timer=[NSTimer scheduledTimerWithTimeInterval: 1.0 target: self selector:@selector (moveUpAndDownLine) userInfo: nil repeats: YES ];

}

- ( void )stopTimer

{

if ([_timer isValid] == YES ) {

[_timer invalidate];

_timer = nil ;

}

}

- ( void )didReceiveMemoryWarning

{

[ super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

@end --远标ITJOB

iphone扫二维码在哪里 苹果手机的扫描二维码功能在哪？

1、方法一：

（1）使用相机自带的扫描二维码功能，首先，打开iphone电源，回到ios的主屏幕界面；

（2）然后在主屏幕界面，从下往上滑动打开“控制中心”；

（3）在“控制中心”找到“二维码扫面”。点击打开；

（4）然后将要扫描的二维码对准摄像头；

（5）扫描完成，就可以选择打开连接了。

2、方法二：苹果手机的QQ、微信等app也具有扫描二维码的功能。

（1）在手机桌面用力按下相应app的图标呼出二级菜单；

（2）在二级菜单选择“扫一扫”即可。