ZBar之自定义二维码扫描

//

//  YvanQRCodeViewController.m

//  zBar

//

//  Created by City--Online on 15/6/8.

//  Copyright (c) 2015年 CYW. All rights reserved.

//



#import "YvanQRCodeViewController.h"

#import "ZBarSDK.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

#define VIEW_WIDTH self.view.bounds.size.width

#define VIEW_HEIGHT self.view.bounds.size.height



@interface YvanQRCodeViewController ()<ZBarReaderViewDelegate>

{

    UIView *_QrCodeline;

    NSTimer *_timer;

    //设置扫描画面

    UIView *_scanView;

    ZBarReaderView *_readerView;

}

@end



@implementation YvanQRCodeViewController



- (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 , 0 , VIEW_WIDTH , VIEW_HEIGHT );

    _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 ];

    }



}

- ( void )setScanView

{

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

    _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  yellowColor]. 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 greenColor ];

    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 yellowColor];

    [ _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 ;

    }

}



// 是否支持转屏

- (BOOL)shouldAutorotate

{

    return YES;

}



// 支持的屏幕方向，此处可直接返回 UIInterfaceOrientationMask 类型

// 也可以返回多个 UIInterfaceOrientationMask 取或运算后的值

- (NSUInteger)supportedInterfaceOrientations

{

    return UIInterfaceOrientationMaskPortrait;

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}



/*

#pragma mark - Navigation



// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

    // Get the new view controller using [segue destinationViewController].

    // Pass the selected object to the new view controller.

}

*/



@end