二维码

本章将讲解如何实现二维码扫描的功能

首先在github上下载ZBar SDK
地址https://github.com/bmorton/ZBarSDK

然后将如下的相关类库添加进去

AVFoundation.framwork, CoreMedia.framework, CoreVideo.framework, libiconv.dylib 和libzbar.a

接下来首先在.h文件中引用

#import "ZBarSDK.h"

同时添加代理

ZBarReaderDelegate

然后在.m文件中添加如下代码

 1 -(void)sysbutbuttonclick{
 2     
 3     ZBarReaderViewController *reader = [ZBarReaderViewController new];
 4     reader.readerDelegate = self;
 5     ZBarImageScanner *scanner = reader.scanner;
 6     
 7     [scanner setSymbology: ZBAR_I25
 8                    config: ZBAR_CFG_ENABLE
 9                        to: 0];
10     [self presentModalViewController: reader    animated: YES];
11 }
12 
13 - (void) imagePickerController: (UIImagePickerController*) reader
14  didFinishPickingMediaWithInfo: (NSDictionary*) info
15 {
16     
17     NSLog(@"info=%@",info);
18     // 得到条形码结果
19     id<NSFastEnumeration> results =[info objectForKey: ZBarReaderControllerResults];
20     ZBarSymbol *symbol = nil;
21     for(symbol in results)
22         // EXAMPLE: just grab the first barcode
23         break;
24     
25     
26     UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"信息提示!" message:symbol.data delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
27     [alert show];
28     // 将获得到条形码显示到我们的界面上
29     // resultText.text = symbol.data;
30     NSLog(@"%@",symbol.data);
31     // 扫描时的图片显示到我们的界面上
32     //  resultImage.image =
33     // [info objectForKey: UIImagePickerControllerOriginalImage];
34     
35     // 扫描界面退出
36     //[reader dismissModalViewControllerAnimated: YES];
37 }

然后需要触发扫描事件的时候 就调用

sysbutbuttonclick 就可以 了