//初始化相机控制器

    ZBarReaderViewController *reader = [ZBarReaderViewController new];

    //设置代理

    reader.readerDelegate = self;

    //基本适配

    reader.supportedOrientationsMask = ZBarOrientationMaskAll;

    //二维码/条形码识别设置

    ZBarImageScanner *scanner = reader.scanner;

    [scanner setSymbology: ZBAR_I25

                   config: ZBAR_CFG_ENABLE

                       to: 0];

    //弹出系统照相机，全屏拍摄

    [self presentModalViewController: reader

                           animated: YES];

     //初始化照相机窗口

    ZBarReaderView *readview = [ZBarReaderView new];

    //自定义大小

    readview.frame = CGRectMake(100, 100, 300, 300);

    //自定义添加相关指示.........发挥各自的APP的想象力

    //此处省略美化10000行代码...................

    //………………………..

    // 好进入正题—— 接着设置好代理

    readview.readerDelegate = self;

    //将其照相机拍摄视图添加到要显示的视图上

    [self.viewaddSubview:readview];

    //二维码/条形码识别设置

   ZBarImageScanner *scanner = readview.scanner;

   [scanner setSymbology: ZBAR_I25

                   config: ZBAR_CFG_ENABLE

                       to: 0];

   //启动，必须启动后，手机摄影头拍摄的即时图像菜可以显示在readview上

   [readview start];