http://blog.sina.com.cn/s/blog_74461f3201016f6c.html
二維碼SDK的Dome“QRCode”中製作libqrencode庫文件,掃描ZBarSDK庫文件
1.製作二維碼 /*字符轉二維碼
導入 libqrencode文件
添加 #import "QRCodeGenerator.h"
@property (strong , nonatomic) UIImageView* qRImageView;
- (void)viewDidLoad
{
[superviewDidLoad];
self.qRImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0, 320, 400)];
[self.view addSubview:self.qRImageView];
}
-(IBAction)qrBtnPress:(id)sender
{
self.qRImageView.image = [QRCodeGeneratorqrImageForString:@"二維碼存儲的字符串信息 asddsdd"imageSize:self.qRImageView.bounds.size.width];
}
2.讀取二維碼信息
添加#import "ZBarSDK.h"//讀二維碼庫
@interface ViewController : UIViewController//讀二維碼的代
@property (strong , nonatomic) ZBarReaderViewController*reader;
@property (strong , nonatomic) NSString* qRUrl;
- (void)viewDidLoad
{
[superviewDidLoad];
self.qRUrl =[[NSString alloc] init];
self.reader= [[ZBarReaderViewController alloc] init];
self.reader.readerDelegate = self;
self.reader.supportedOrientationsMask =ZBarOrientationMaskAll;
ZBarImageScanner *scanner = self.reader.scanner;
[scannersetSymbology: ZBAR_I25
config: ZBAR_CFG_ENABLE
to: 0];
//這部分爲zBarSDK文檔提供的例子給出的主要的意思就是初始化ZBarReaderViewController類的對象,以及設置代理回調方法爲 - (void) imagePickerController: (UIImagePickerController*)reader
//didFinishPickingMediaWithInfo: (NSDictionary*) info
self.qRImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0, 320, 400)];
[self.viewaddSubview:self.qRImageView];
}
//點擊Button時將掃描二維碼需要的照相機視圖, self.reader是(ZBarReaderViewController)類的對象
-(IBAction)QRPress:(id)sender
{
[selfpresentViewController:self.reader animated:YES completion:^{
NSLog(@"fd");
}];
}
//這個回調方法的寫法是固定,只要知道以下幾點就好需要的數據是從symbol.data中取出的,因此也就需要在.h文件中聲明一個字符串接受就好。在這裏我在.h中聲明瞭self.qRUrl對象進行接受,之後只要按下面的格式寫就好。
- (void) imagePickerController: (UIImagePickerController*)reader
didFinishPickingMediaWithInfo: (NSDictionary*)info
{
id results =
[info objectForKey: ZBarReaderControllerResults];
ZBarSymbol *symbol = nil;
for(symbol in results)
{
NSLog(@"symbol =%@",symbol.data);
break;
}
self.qRUrl = symbol.data;
UIAlertView*alert = [[UIAlertView alloc] initWithTitle:self.qRUrlmessage:self.qRUrl delegate:self cancelButtonTitle:@"OK"otherButtonTitles:nil];
[alertshow];
self.qRImageView.image =
[info objectForKey: UIImagePickerControllerOriginalImage];
[self.readerdismissViewControllerAnimated:YES completion:^{
}];
}