iOS使用Zbar扫描二维码

iOS使用Zbar扫描二维码

标签（空格分隔）：二维码扫描 iOS Zbar64位

---

正文：

首先下载一个支持64位系统的ZbarSDK的包，保存在了我的云盘里，地址：ZbarSDK

1. 把文件拖到工程里面
2. 然后添加依赖库：AVFoundation.framework、libiconv.2.dylib、CoreMedia.framework、CoreVideo.framework，其中libzbar.a是SDK中的,(如果需要通过SVN上传自己代码时，要记得还有这个.a文件)
3. 在你要进行添加扫描的界面的.h里 可直接复制到工程里
   
   添加头文件

#import "ZBarSDK.h"
//设置代理
@protocol ErweimaDelegate <NSObject>
//扫描出结果则调用这个方法
-(void)finishRead:(NSString *)barCode;
@end

@interface ErweimaViewController : superVC < ZBarReaderViewDelegate > //此处superVC是自定义的父类
@property (strong, nonatomic)id < ErweimaDelegate >delegate;
@end

4.在.m文件中:

@interface ErweimaViewController ()
{
    ZBarReaderView *rederView;//二维码扫描View，可自定义样式
    UIImageView *lineView;//自定义的扫描线
    NSTimer *time;//定时器，控制扫描线跑动
}

//在进入界面时就开始扫描
-(void)viewWillAppear:(BOOL)animated{

    [super viewWillAppear:animated];
    [rederView start];
}
//退出界面时就停止扫描
- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [rederView stop];
}

-(void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.title = @"扫描";

    [self initView];

}

- (void)initView
{
    rederView = [[ZBarReaderView alloc] init];
    rederView.frame = CGRectMake(0, 0,self.view.frame.size.width,self.view.frame.size.height);
    rederView.readerDelegate = self;
    rederView.allowsPinchZoom = NO; // 不使用Pinch手势变焦
    rederView.torchMode = 0;//闪光灯 关
    rederView.trackingColor = [UIColor clearColor];//锁定图码 显示的颜色框

    if (TARGET_IPHONE_SIMULATOR) {
        ZBarCameraSimulator *camera = [[ZBarCameraSimulator alloc] initWithViewController:self];
        camera.readerView = rederView;
    }
    [self.view addSubview:rederView];
/*************可忽略此域中的以下代码，可以自己自定义***************/

    //扫描区域计算
    CGRect scanMaskRect = CGRectMake(Width_Screen/2-75, 150, 150, 150);
    CGRect scanCrop=[self getScanCrop:scanMaskRect readerViewBounds:rederView.bounds];
    rederView.scanCrop = scanCrop;
    [rederView.captureReader captureFrame];
    [rederView start];

    UIImageView *image = [[UIImageView alloc] initWithFrame:CGRectMake(-20, -64, Width_Screen+40, Height_Screen)];
    image.image = [UIImage imageNamed:@"111111111"];
    image.backgroundColor = [UIColor clearColor];
    image.alpha = 0.3;
    [self.view addSubview:image];

    //这里添加了类似微信的扫描线，并开始上线滑动动画
    lineView=[[UIImageView alloc] initWithFrame:CGRectMake(51, 200, 219, 3)];
//    lineView.image=[UIImage imageNamed:@"scan_line"];
    lineView.backgroundColor = UIColor_Theme;
    [self.view addSubview:lineView];
     [self loadAnimationStart];
}

-(CGRect)getScanCrop:(CGRect)rect readerViewBounds:(CGRect)rvBounds{
    CGFloat x,y,width,height;
    x = rect.origin.y / rvBounds.size.height;
    y = 1 - (rect.origin.x + rect.size.width) / rvBounds.size.width;
    width = (rect.origin.y + rect.size.height) / rvBounds.size.height;
    height = 1 - rect.origin.x / rvBounds.size.width;
    return CGRectMake(x, y, width, height);

}

-(void)loadAnimationStart{

    if(Width_Screen != 320){

        [UIView animateWithDuration:2.0 animations:^{
            lineView.frame=CGRectMake(lineView.frame.origin.x, 390,lineView.frame.size.width,lineView.frame.size.height);
        } completion:^(BOOL finished) {

           time = [NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(secStart) userInfo:nil repeats:NO];
        }];
    }else{

        [UIView animateWithDuration:2.0 animations:^{
            lineView.frame=CGRectMake(lineView.frame.origin.x, 345,lineView.frame.size.width,lineView.frame.size.height);
        } completion:^(BOOL finished) {

            time = [NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(secStart) userInfo:nil repeats:NO];
        }];

    }

}
-(void)secStart{

    if(Width_Screen != 320){
        lineView.frame=CGRectMake(lineView.frame.origin.x, 175,lineView.frame.size.width,lineView.frame.size.height);
        if (time != nil) {
            [self loadAnimationStart];
        }

    }else{
        lineView.frame=CGRectMake(lineView.frame.origin.x, 130,lineView.frame.size.width,lineView.frame.size.height);
        if (time != nil) {
            [self loadAnimationStart];
            NSLog(@"123");
        }
        NSLog(@"qwe");
    }

}

-(void)readerView:(ZBarReaderView *)readerView didReadSymbols:(ZBarSymbolSet *)symbols fromImage:(UIImage *)image
{
    NSString *str;//扫描出的字段，记录下来

    for (ZBarSymbol *symbol in symbols) {
        NSLog(@"%@", symbol.data);
        str=symbol.data;
        [rederView stop];
        [self.navigationController popViewControllerAnimated:YES];
        [self showHudMessageAndHidden:str];//展示出扫描结果，根据需求可自定义展示样式
        lineView.hidden = YES;
        [time setFireDate:[NSDate distantFuture]];
        [time invalidate];
        time = nil;
        break;
    }

    //这个代理是 返回到上个界面把str传过去的，根据需求可改变
    if([_delegate respondsToSelector:@selector(finishRead:)]){

        [_delegate finishRead:str];
    }

}

---

结束，搞定。预祝成功。