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ios二維碼掃描開發(fā),ios二維碼掃描功能

IOS利用AVFoundation框架進行二維碼掃描開發(fā),掃描完成后,顯示了個二維碼圖片,卡在這個界面上好久

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ios開發(fā)中有沒有一種技術(shù)能在二維碼中間嵌套一個二維碼讓相機能夠識別區(qū)分這兩個二維碼呢

可以實現(xiàn)的,二維碼包含的信息是由你控制的,對這兩個二維碼做不同標示,掃描時根據(jù)這個標示做個判斷就可以實現(xiàn)

iOS做掃描二維碼界面,有什么第三方框架可以用

/

// 頭文件

// TestProject

//

#import UIKit/UIKit.h

#import "ZBarSDK.h"

@interface yxpQrCode : UIViewController

@end

//

// 實現(xiàn)文件

// TestProject

//

#import "yxpQrCode.h"

#define SCANVIEW_EdgeTop 40.0

#define SCANVIEW_EdgeLeft 50.0

#define TINTCOLOR_ALPHA 0.2 //淺色透明度

#define DARKCOLOR_ALPHA 0.5 //深色透明度

@interface yxpQrCode () ZBarReaderViewDelegate

{

UIView *_QrCodeline;

NSTimer *_timer;

//設(shè)置掃描畫面

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 = @"掃描二維碼" ;

//初始化掃描界面

[ 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 ];

//關(guān)閉閃光燈

_readerView . torchMode = 0 ;

[ self . view addSubview : _readerView ];

//掃描區(qū)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)];

//判斷是否包含 頭'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 ];

//判斷是否包含 頭'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,可以使用如下代碼來把一個字符串放置到剪貼板上:

pasteboard. string = [arrInfoFoot objectAtIndex : 1 ];

}

}

//二維碼的掃描區(qū)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];

//左側(cè)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];

/******************中間掃描區(qū)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];

//右側(cè)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];

//用于說明的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 = @"將二維碼對準方框,即可自動掃描" ;

[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];

//用于開關(guān)燈操作的button

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

[openButton setTitle : @"開啟閃光燈" 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];

//畫中間的基準線

_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 ];

}

//二維碼的橫線移動

- ( 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

{

//創(chuàng)建一個時間計數(shù)

_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 --遠標ITJOB

iphone掃二維碼在哪里 蘋果手機的掃描二維碼功能在哪?

1、方法一:

(1)使用相機自帶的掃描二維碼功能,首先,打開iphone電源,回到ios的主屏幕界面;

(2)然后在主屏幕界面,從下往上滑動打開“控制中心”;

(3)在“控制中心”找到“二維碼掃面”。點擊打開;

(4)然后將要掃描的二維碼對準攝像頭;

(5)掃描完成,就可以選擇打開連接了。

2、方法二:蘋果手機的QQ、微信等app也具有掃描二維碼的功能。

(1)在手機桌面用力按下相應app的圖標呼出二級菜單;

(2)在二級菜單選擇“掃一掃”即可。

本文標題:ios二維碼掃描開發(fā),ios二維碼掃描功能
本文鏈接:http://www.rwnh.cn/article44/dscophe.html

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