#import "viewcontroller.h"  
  
@interface viewcontroller ()  
{  
    uitextfield *resulttext;  
    zbarreaderview *readerview;  
    zbarcamerasimulator *camerasim;  
}  
@end  
  
@implementation viewcontroller  
  
- (void)viewdidload {  
    [super viewdidload];  
    // do any additional setup after loading the view, typically from a nib.  
      
    resulttext = [[uitextfield alloc] initwithframe:cgrectmake(20, 40, 200, 60)];  
    resulttext.backgroundcolor = [uicolor bluecolor];  
    [self.view addsubview:resulttext];  
      
    readerview = [[zbarreaderview alloc]init];  
    readerview.frame = cgrectmake(10, 110, 300, 300);  
    readerview.readerdelegate = self;  
    //关闭闪光灯  
    readerview.torchmode = 0;  
    //处理模拟器  
    if (target_iphone_simulator) {  
        zbarcamerasimulator *camerasimulator  
        = [[zbarcamerasimulator alloc]initwithviewcontroller:self];  
        camerasimulator.readerview = readerview;  
    }  
    [self.view addsubview:readerview];  
  
    [readerview start];  
  
}  
  
- (void) readerview: (zbarreaderview*) view  
     didreadsymbols: (zbarsymbolset*) syms  
          fromimage: (uiimage*) img  
{  
    // do something useful with results  
    for(zbarsymbol *sym in syms) {  
        resulttext.text = sym.data;  
        break;  
    }  
    [readerview stop];  
}