ios:二维码扫描关键代码

two-demensional-code-scran.m

//
//  RootViewController.m
//  ScranDemo
//
//  Created by apple on 13-2-22.
//  Copyright (c) 2013年 __MyCompanyName__. All rights reserved.
//

#import "RootViewController.h"

@interface RootViewController ()

@end

//important：扫描二维码需要导入ZBarSDK


@implementation RootViewController
@synthesize resultImageView;//用于显示摄像头拍摄的图片
@synthesize resultTextView;//用于显示二维码扫描后的信息，一般是url

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view.
}

- (void)viewDidUnload
{
    [self setResultImageView:nil];
    [self setResultTextView:nil];
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (IBAction)scan:(id)sender {
    ZBarReaderViewController *reader = [ZBarReaderViewController new];
    reader.readerDelegate = self;
    reader.supportedOrientationsMask = ZBarOrientationMaskAll;
    
    ZBarImageScanner *scaner = reader.scanner;
    [scaner setSymbology:ZBAR_I25 config:ZBAR_CFG_ENABLE to:0];
    [self presentModalViewController:reader animated:YES];
}

-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
    id<NSFastEnumeration> results = [info objectForKey:ZBarReaderControllerResults];
    ZBarSymbol *symbol = nil;
    for (symbol in results) {
        break;
    }
//    if ([symbol.data canBeConvertedToEncoding:NSShiftJISStringEncoding])
//    {
//        NSString *str = [NSString stringWithCString:[symbol.data cStringUsingEncoding: NSShiftJISStringEncoding] encoding:NSUTF8StringEncoding];
//    }
    NSLog(@"%s %d",__FUNCTION__,__LINE__);
    NSLog(@"the result is %@",symbol.data);
    resultTextView.text = symbol.data;
    resultImageView.image = [info objectForKey:UIImagePickerControllerOriginalImage ];
    [picker dismissModalViewControllerAnimated:YES ];
}
@end