ZBar之ZBarReaderViewController

最新推荐文章于 2019-04-07 08:59:00 发布

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最新推荐文章于 2019-04-07 08:59:00 发布

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CC 4.0 BY-SA版权

原文链接：https://yq.aliyun.com/articles/31329

本文介绍了一个简单的iOS应用中实现二维码扫描的功能。通过使用ZBarReaderViewController进行二维码读取，并展示了如何配置扫描器排除不需要的条形码类型。文章还包含了展示扫描结果的UI组件设置。

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//
//  ViewController.m
//  ZBarReaderViewController
//
//  Created by City--Online on 15/6/9.
//  Copyright (c) 2015年 CYW. All rights reserved.
//

#import "ViewController.h"
#import "ZBarSDK.h"

@interface ViewController ()<ZBarReaderDelegate>
@property(nonatomic,strong) UIImageView *imgView;
@property(nonatomic,strong) UILabel *label;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    UIButton *btn=[UIButton buttonWithType:UIButtonTypeSystem];
    [btn setTitle:@"扫你" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    btn.frame=CGRectMake(10, 100, 60, 40);
    [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn];
    
    _imgView=[[UIImageView alloc]initWithFrame:CGRectMake(100, 200, 200, 200)];
    [self.view addSubview:_imgView];
    
    _label=[[UILabel alloc]initWithFrame:CGRectMake(10, 150, 300, 40)];
    [_label setTextColor:[UIColor redColor]];
    [self.view addSubview:_label];
}
-(void)btnClick:(id)sender
{
    ZBarReaderViewController *reader=[[ZBarReaderViewController alloc]init];
    reader.readerDelegate=self;
    ZBarImageScanner *scanner=reader.scanner;
    [scanner setSymbology:ZBAR_I25 config:ZBAR_CFG_ENABLE to:0];
    reader.showsZBarControls=YES;
    reader.showsHelpOnFail=NO;
//    reader.showsCameraControls=YES;
    [self presentViewController:reader animated:YES completion:nil];
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    id<NSFastEnumeration> results = [info objectForKey:ZBarReaderControllerResults];
    ZBarSymbol * symbol;
    for(symbol in results)
        break;
    
    _imgView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
    
    [picker dismissViewControllerAnimated:YES completion:nil];
    
    _label.text = symbol.data;
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end