二维码框架ZBarSDK的使用和自定义二维码扫描界面方法

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二维码仿微信扫描界面，实现扫描动画

转载：http://blog.csdn.net/yxiaoping/article/details/39027079

作者：Searcher_安然

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如果你不知道ZBarSDK怎么用，请下载demo
http://download.csdn.net/detail/u013686641/7858917
如果你已经配置好ZBarSDK ，那么下面这个类可以直接用

下面是效果图



//

// 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];

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

_readerView.tracksSymbols=NO;

_readerView.readerDelegate =self;

[_readerViewaddSubview:_scanView];

//关闭闪光灯

_readerView.torchMode =0;



[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)];



//判断是否包含 头'http:'

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

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





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

[alertViewshow];



//判断是否包含 头'ssid:'

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

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



if ([predicate evaluateWithObject:symbolStr]) {



}

else if([ssidPreevaluateWithObject:symbolStr]){



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



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



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





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

[arrInfoHeadobjectAtIndex:1],[arrInfoFootobjectAtIndex:1]];



UIPasteboard *pasteboard=[UIPasteboardgeneralPasteboard];

//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 = [arrInfoFootobjectAtIndex:1];

}



}

//二维码的扫描区域

- (void)setScanView

{

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

_scanView.backgroundColor=[UIColorclearColor];



//最上部view

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

upView.alpha =TINTCOLOR_ALPHA;

upView.backgroundColor = [UIColorblackColor];

[_scanViewaddSubview:upView];



//左侧的view

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

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



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

scanCropView.layer.borderWidth=2.0;



scanCropView.backgroundColor=[UIColorclearColor];

[_scanViewaddSubview:scanCropView];





//右侧的view

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

rightView.alpha =TINTCOLOR_ALPHA;

rightView.backgroundColor = [UIColorblackColor];

[_scanViewaddSubview:rightView];





//底部view

UIView *downView = [[UIViewalloc] 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 = [[UIColorblackColor] colorWithAlphaComponent:TINTCOLOR_ALPHA];

[_scanViewaddSubview:downView];



//用于说明的label

UILabel *labIntroudction= [[UILabelalloc] init];

labIntroudction.backgroundColor = [UIColorclearColor];

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

labIntroudction.numberOfLines=1;

labIntroudction.font=[UIFontsystemFontOfSize:15.0];

labIntroudction.textAlignment=NSTextAlignmentCenter;

labIntroudction.textColor=[UIColorwhiteColor];

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

[downViewaddSubview:labIntroudction];



UIView *darkView = [[UIViewalloc] initWithFrame:CGRectMake(0,
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] initWithFrame:CGRectMake(10,20, 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-2*SCANVIEW_EdgeLeft,2)];

_QrCodeline.backgroundColor = [UIColorgetThemeColor];

[_scanViewaddSubview:_QrCodeline];

}

- (void)openLight

{

if (_readerView.torchMode ==0)
{

_readerView.torchMode =1;

}else

{

_readerView.torchMode =0;

}

}

- (void)viewWillDisappear:(BOOL)animated

{

[superviewWillDisappear:animated];



if (_readerView.torchMode ==1)
{

_readerView.torchMode =0;

}

[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)]

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];

}elseif(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