IOS开发---菜鸟学习之路--（二十）-二维码扫描功能的实现

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 }

View Code

然后需要触发扫描事件的时候 就调用

sysbutbuttonclick 就可以 了