二维码框架ZBarSDK的使用和自己定义二维码扫描界面方法

假设你不知道ZBarSDK怎么用，请下载demo

http://download.csdn.net/detail/u013686641/7858917

假设你已经配置好ZBarSDK 。那么以下这个类能够直接用

以下是效果图

//

//  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

@interfaceyxpQrCode ()<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 = [superinitWithNibName:nibNameOrNil
bundle:nibBundleOrNil];

if (self) {

// Custom initialization

}

returnself;

}

- (void)viewDidLoad

{

[superviewDidLoad];

self.title=@"扫描二维码";

//初始化扫描界面

[selfsetScanView];

_readerView= [[ZBarReaderViewalloc]init];

,
VIEW_WIDTH);

_readerView.tracksSymbols=NO;

_readerView.readerDelegate =self;

[_readerViewaddSubview:_scanView];

//关闭闪光灯

;

[self.viewaddSubview:_readerView];

//扫描区域

//readerView.scanCrop =

[_readerViewstart];

[selfcreateTimer];

}

#pragma mark -- ZBarReaderViewDelegate

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

{

constzbar_symbol_t *symbol =zbar_symbol_set_first_symbol(symbols.zbarSymbolSet);

NSString *symbolStr = [NSStringstringWithUTF8String:
zbar_symbol_get_data(symbol)];

//推断是否包括 头'http:'

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

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

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

[alertViewshow];

//推断是否包括 头'ssid:'

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

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

if ([predicate
evaluateWithObject:symbolStr]) {

}

else
if([ssidPreevaluateWithObject:symbolStr]){

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

]componentsSeparatedByString:@":"];

]componentsSeparatedByString:@":"];

symbolStr = [NSStringstringWithFormat:@"ssid:
%@ \n password:%@",

[arrInfoHead],[arrInfoFoot]];

UIPasteboard *pasteboard=[UIPasteboardgeneralPasteboard];

//然后，能够使用例如以下代码来把一个字符串放置到剪贴板上：

pasteboard.];

}

}

//二维码的扫描区域

- (void)setScanView

{

_scanView=[[UIViewalloc]
initWithFrame,
)];

_scanView.backgroundColor=[UIColorclearColor];

//最上部view

UIView* upView = [[UIViewalloc]
,,
VIEW_WIDTH,SCANVIEW_EdgeTop)];

upView.alpha =TINTCOLOR_ALPHA;

upView.backgroundColor = [UIColorblackColor];

[_scanViewaddSubview:upView];

//左側的view

UIView *leftView = [[UIViewalloc]
,SCANVIEW_EdgeTop,
SCANVIEW_EdgeLeft*SCANVIEW_EdgeLeft)];

leftView.alpha =TINTCOLOR_ALPHA;

leftView.backgroundColor = [UIColorblackColor];

[_scanViewaddSubview:leftView];

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

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

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

scanCropView.layer.borderColor=[UIColorgetThemeColor].CGColor;

scanCropView.layer.borderWidth=2.0;

scanCropView.backgroundColor=[UIColorclearColor];

[_scanViewaddSubview:scanCropView];

//右側的view

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

rightView.alpha =TINTCOLOR_ALPHA;

rightView.backgroundColor = [UIColorblackColor];

[_scanViewaddSubview:rightView];

//底部view

UIView *downView = [[UIViewalloc]
*SCANVIEW_EdgeLeft+SCANVIEW_EdgeTop,VIEW_WIDTH,
VIEW_HEIGHT)];

//downView.alpha = TINTCOLOR_ALPHA;

downView.backgroundColor = [[UIColorblackColor]
colorWithAlphaComponent:TINTCOLOR_ALPHA];

[_scanViewaddSubview:downView];

//用于说明的label

UILabel *labIntroudction= [[UILabelalloc]
init];

labIntroudction.backgroundColor = [UIColorclearColor];

labIntroudction.,,
);

labIntroudction.;

labIntroudction.font=[UIFontsystemFontOfSize:15.0];

labIntroudction.textAlignment=NSTextAlignmentCenter;

labIntroudction.textColor=[UIColorwhiteColor];

labIntroudction.text=@"将二维码对准方框，就可以自己主动扫描";

[downViewaddSubview:labIntroudction];

UIView *darkView = [[UIViewalloc]
, downView.frame.size.height-100.0,VIEW_WIDTH,
100.0)];

darkView.backgroundColor = [[UIColorblackColor] 
colorWithAlphaComponent:DARKCOLOR_ALPHA];

[downViewaddSubview:darkView];

//用于开关灯操作的button

UIButton *openButton=[[UIButtonalloc]
,,
300.0, 40.0)];

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

[openButton setTitleColor:[UIColorwhiteColor]
forState:UIControlStateNormal];

openButton.titleLabel.textAlignment=NSTextAlignmentCenter;

openButton.backgroundColor=[UIColorgetThemeColor];

openButton.titleLabel.font=[UIFontsystemFontOfSize:22.0];

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

[darkViewaddSubview:openButton];

//画中间的基准线

_QrCodeline = [[UIViewalloc]
initWithFrame:CGRectMake(SCANVIEW_EdgeLeft,SCANVIEW_EdgeTop,
VIEW_WIDTH)];

_QrCodeline.backgroundColor = [UIColorgetThemeColor];

[_scanViewaddSubview:_QrCodeline];

}

- (void)openLight

{

)
{

;

}else

{

;

}

}

- (void)viewWillDisappear:(BOOL)animated

{

[superviewWillDisappear:animated];

)
{

;

}

[selfstopTimer];

[_readerViewstop];

}

//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)]

*SCANVIEW_EdgeLeft+SCANVIEW_EdgeTop==Y){

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

[UIView setAnimationDuration:];

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

[UIView commitAnimations];

}elseif(SCANVIEW_EdgeTop==Y){

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

[UIView setAnimationDuration:];

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

[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