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//// VIEwController.m// QRCode//// Created by chenchen on 15/7/30.// copyright (c) 2015年 BSY. All rights reserved.//#import <AVFoundation/AVFoundation.h>#import "VIEwController.h"@interface VIEwController ()<AVCaptureMetadataOutputObjectsDelegate>@end@implementation VIEwController- (voID)vIEwDIDLoad { [super vIEwDIDLoad]; AVCaptureSession *session = [[AVCaptureSession alloc] init]; AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVIDeo]; NSError *error = nil; AVCaptureDeviceinput *input = [AVCaptureDeviceinput deviceinputWithDevice:device error:&error]; if (input) { [session addinput:input]; } else { NSLog(@"Error: %@",error); } AVCaptureMetadataOutput *output = [[AVCaptureMetadataOutput alloc] init]; //设置扫码支持的编码格式(如下设置条形码和二维码兼容) [output setMetadataObjectTypes:@[AVMetadataObjectTypeQRCode,AVMetadataObjectTypeEAN13Code,AVMetadataObjectTypeEAN8Code,AVMetadataObjectTypeCode128Code]]; [output setMetadataObjectsDelegate:self queue:dispatch_get_main_queue()]; [session addOutput:output]; [session startRunning];}#pragma mark - AVCaptureMetadataOutputObjectsDelegate- (voID)captureOutput:(AVCaptureOutput *)captureOutputdIDOutputMetadataObjects:(NSArray *)MetadataObjects fromConnection:(AVCaptureConnection *)connection{ Nsstring *QRCode = nil; for (AVMetadataObject *Metadata in MetadataObjects) { if ([Metadata.type isEqualToString:AVMetadataObjectTypeQRCode]) { // This will never happen; nobody has ever scanned a QR code... ever QRCode = [(AVMetadataMachineReadableCodeObject *)Metadata stringValue]; break; } } NSLog(@"QR Code: %@",QRCode);}- (voID)dIDReceiveMemoryWarning { [super dIDReceiveMemoryWarning]; // dispose of any resources that can be recreated.}@end
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