iOS 原生态API实现二维码的扫描功能

wyfem 发表于 2015-07-30 13:05

本帖最后由 wyfem 于 2015-07-30 13:06 编辑

AVCaptureSession *session = [ init];
AVCaptureDevice *device = ;
NSError *error = nil;

AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device
                                                                     error:&error];
if (input) {
   ;
} else {
   NSLog(@"Error: %@", error);
}
AVCaptureMetadataOutput *output = [ 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)
];
;
;
;

代码//
//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 {
;

AVCaptureSession *session = [ init];
AVCaptureDevice *device = ;
NSError *error = nil;

AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device
                                                                     error:&error];
if (input) {
   ;
} else {
   NSLog(@"Error: %@", error);
}
AVCaptureMetadataOutput *output = [ 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)
];
;
;
;
}

#pragma mark - AVCaptureMetadataOutputObjectsDelegate
- (void)captureOutput:(AVCaptureOutput *)captureOutput
didOutputMetadataObjects:(NSArray *)metadataObjects
   fromConnection:(AVCaptureConnection *)connection
{
NSString *QRCode = nil;
for (AVMetadataObject *metadata in metadataObjects) {
   if () {
         // This will never happen; nobody has ever scanned a QR code... ever
         QRCode = [(AVMetadataMachineReadableCodeObject *)metadata stringValue];
         break;
   }
}

NSLog(@"QR Code: %@", QRCode);
}
- (void)didReceiveMemoryWarning {
;
// Dispose of any resources that can be recreated.
}

@end

renxiao2003 发表于 2015-08-11 15:38

我做Android的二维码扫描难死了。

页: [1]

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iOS 原生态API实现二维码的扫描功能