iOS zbar扫描二维码

1.下载ZBarSDK

2.项目中导入：直接将文件夹拖到项目中，选择


3.targets－general－linked frameworks and libraries 添加框架


4.在viewcontroller.h中加头文件 #import
<ZBarSDK.h>

5.在viewcontroller.h中加 @interface ViewContrllerViewController :
UIViewController<ZBarReaderDelegate>

6.添加button（点击扫描）、label（输出结果）、imageView（扫描窗口）

7.在viewcontroller.h中加代码

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary
*)info
{

id<NSFastEnumeration> results = [info
objectForKey:ZBarReaderControllerResults];

ZBarSymbol * symbol;

for(symbol in results)

break;

_imageView.image = [info
objectForKey:UIImagePickerControllerOriginalImage];

[picker dismissViewControllerAnimated:YES
completion:nil];

NSString *resultOfQRCode = symbol.data;

_lable.text = resultOfQRCode;/*
输出到lable */
}
扫描button里这样写

- (IBAction)scan:(id)sender {

ZBarReaderViewController * reader = [ZBarReaderViewController
new];
reader.readerDelegate =
self;

ZBarImageScanner * scanner = reader.scanner;

[scanner setSymbology:ZBAR_I25
config:ZBAR_CFG_ENABLE
to:0];

reader.showsZBarControls =
YES;

[self
presentViewController:reader animated:YES
completion:nil];
}