掃描二維碼

1、前往https://github.com/bmorton/ZBarSDK下載SDK
2、添加框架
1. Drag ZBarSDK into your Xcode project.
2. Add these system frameworks to your project:
      * AVFoundation.framework (weak)
      * CoreMedia.framework (weak)
      * CoreVideo.framework (weak)
      * QuartzCore.framework
      * libiconv.dylib

3、上代碼

一、Header.h

#define Width [UIScreen mainScreen].bounds.size.width
#define Height [UIScreen mainScreen].bounds.size.height

//背景顏色
#define SETBACKCOLOR(a, b, c, alp) [UIColor colorWithRed:(a)/255.0 green:(b)/255.0 blue:(c)/255.0 alpha:(alp)]


#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
#define IS_RETINA ([[UIScreen mainScreen] scale] >= 2.0)

#define SCREEN_WIDTH ([[UIScreen mainScreen] bounds].size.width)
#define SCREEN_HEIGHT ([[UIScreen mainScreen] bounds].size.height)
#define SCREEN_MAX_LENGTH (MAX(SCREEN_WIDTH, SCREEN_HEIGHT))
#define SCREEN_MIN_LENGTH (MIN(SCREEN_WIDTH, SCREEN_HEIGHT))
#define IS_IPHONE_4_OR_LESS (IS_IPHONE && SCREEN_MAX_LENGTH < 568.0)
#define IS_IPHONE_5 (IS_IPHONE && SCREEN_MAX_LENGTH == 568.0)
#define IS_IPHONE_6 (IS_IPHONE && SCREEN_MAX_LENGTH == 667.0)
#define IS_IPHONE_6P (IS_IPHONE && SCREEN_MAX_LENGTH == 736.0)

二、QRCodeViewController.m

#import "QRCodeViewController.h"
#import "ZBarSDK.h"
#import "Header.h"

@interface QRCodeViewController ()<ZBarReaderViewDelegate,ZBarReaderDelegate,UIAlertViewDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate>
{
    ZBarReaderView *readerView;
    UIImageView * scanZomeBack;
    UIImageView * readLineView;
    
    BOOL is_Anmotion;
}

@end

@implementation QRCodeViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.navigationController.navigationBar.hidden = YES;
    is_Anmotion = NO;
    
    // Do any additional setup after loading the view from its nib.
}
-(void)viewWillAppear:(BOOL)animated
{
    readerView =[ZBarReaderView new];
    readerView.frame = CGRectMake(0, 0, Width, Height);
    readerView.readerDelegate =self;
    readerView.allowsPinchZoom =NO;
    readerView.showsFPS =NO;
    readerView.tracksSymbols = NO;
    readerView.torchMode = 0;
    
    [self.view addSubview:readerView];
    
    UIImage *hbImage=[UIImage imageNamed:@"twocode_bg"];
    scanZomeBack=[[UIImageView alloc] initWithImage:hbImage];
    scanZomeBack.clipsToBounds =YES;
    
    CGRect mImagerect;
    NSLog(@"%f",Width);
    if (Width==320) {
        mImagerect=CGRectMake(60, 150, 200, 200);
    }else
    {
        if (IS_IPHONE_6P) {
            mImagerect=CGRectMake(107, 180, 200, 200);
        }
        else
        {
            mImagerect=CGRectMake(87, 180, 200, 200);
        }
    }
    
    [scanZomeBack setFrame:mImagerect];
    
    
    
    
    [readerView addSubview:scanZomeBack];
    //    readerView.scanCrop=[self getScanCrop:mImagerect readerViewBounds:readerView.bounds];
    readerView.scanCrop =CGRectMake(0, 0, 1, 1);
    [readerView start];
    [self loopDrawLine];
    
    
    //返回
    UIButton * goBackButton =[UIButton buttonWithType:UIButtonTypeCustom];
    goBackButton.frame =CGRectMake(20, 20, 40, 40);
    [goBackButton setImage:[UIImage imageNamed:@"erweima_back"] forState:UIControlStateNormal];
    [goBackButton addTarget:self action:@selector(goBack) forControlEvents:UIControlEventTouchUpInside];
    [readerView addSubview:goBackButton];
    
    //去相冊
    UIButton * button =[UIButton buttonWithType:UIButtonTypeCustom];
    button.frame =CGRectMake(Width-60, 20, 40, 40);
    [button setImage:[UIImage imageNamed:@"erweima_xiangce"] forState:UIControlStateNormal];
    [button addTarget:self action:@selector(xiangce) forControlEvents:UIControlEventTouchUpInside];
    [readerView addSubview:button];
    
    //個人二維碼
    UILabel * textLabel =[[UILabel alloc]initWithFrame:CGRectMake(scanZomeBack.frame.origin.x, scanZomeBack.frame.origin.y+scanZomeBack.frame.size.height+10, 200, 25)];
    textLabel.text =@"將二維碼放入框內,便可自動掃描";
    textLabel.font =[UIFont systemFontOfSize:13];
    textLabel.textColor =[UIColor whiteColor];
    [self.view addSubview:textLabel];
}
#pragma mark -- 二維碼掃描動畫
#pragma mark 掃描動畫
-(void)loopDrawLine
{
    CGRect  rect = CGRectMake(0, -(scanZomeBack.frame.size.height), (scanZomeBack.frame.size.width), scanZomeBack.frame.size.height);
    if (readLineView) {
        [readLineView removeFromSuperview];
    }
    readLineView = [[UIImageView alloc] initWithFrame:rect];
    [readLineView setImage:[UIImage imageNamed:@"Qcode_bg"]];
    [UIView animateWithDuration:3.0
                          delay: 0.0
                        options: UIViewAnimationOptionCurveEaseIn
                     animations:^{
                         //修改fream的代碼寫在這裏
                         readLineView.frame =CGRectMake(0, 0, scanZomeBack.frame.size.width, scanZomeBack.frame.size.height);
                         [readLineView setAnimationRepeatCount:0];
                         
                     }
                     completion:^(BOOL finished){
                         if (!is_Anmotion) {
                             
                             [self loopDrawLine];
                         }
                         
                     }];
    
    [scanZomeBack addSubview:readLineView];
    
}
#pragma mark --二維碼回調
- (void)readerView:(ZBarReaderView *)readerView didReadSymbols:(ZBarSymbolSet *)symbols fromImage:(UIImage *)image
{
    for (ZBarSymbol *symbol in symbols) {
        NSLog(@"%@", symbol.data);
        NSArray * arr =[symbol.data componentsSeparatedByString:@"SMDD://"];
        if (arr.count>1) {
            NSString * contentStr =arr[1];
            NSArray * array =[contentStr componentsSeparatedByString:@"||"];
            if (array.count>1) {
                /*返回主頁*/
                [[NSNotificationCenter defaultCenter]postNotificationName:@"SKValue" object:nil userInfo:[NSDictionary dictionaryWithObject:contentStr forKey:@"contentStr"]];
                [self.navigationController popViewControllerAnimated:YES];
            }else
            {
                UIAlertView * alter =[[UIAlertView alloc]initWithTitle:@"無效二維碼" message:nil delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
                [alter show];
            }
        }else
        {
            UIAlertView * alter =[[UIAlertView alloc]initWithTitle:@"無效二維碼" message:nil delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
            [alter show];
        }
        
    }
}
#pragma mark -- 調用相冊
-(void)xiangce
{
    
    ZBarReaderController *reader = [ZBarReaderController new];
    reader.allowsEditing = YES;
    reader.readerDelegate = self;
    reader.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
    [self presentViewController:reader animated:YES completion:^{
        NSLog(@"跳轉成功---");
    }];
    
}
#pragma mark -- 進入相冊回調
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    id<NSFastEnumeration> results = [info objectForKey: ZBarReaderControllerResults];
    if ([info count]>2) {
        int quality = 0;
        ZBarSymbol *bestResult = nil;
        for(ZBarSymbol *sym in results) {
            int q = sym.quality;
            if(quality < q) {
                quality = q;
                bestResult = sym;
            }
        }
        [self performSelector: @selector(presentResult:) withObject: bestResult afterDelay: .001];
    }else {
        ZBarSymbol *symbol = nil;
        for(symbol in results)
            break;
        [self performSelector: @selector(presentResult:) withObject: symbol afterDelay: .001];
    }
    [picker dismissViewControllerAnimated:YES completion:^{
        
    }];
}
- (void) readerControllerDidFailToRead: (ZBarReaderController*) reader
                             withRetry: (BOOL) retry
{
    [reader popViewControllerAnimated:YES];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
    [picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void) presentResult: (ZBarSymbol*)sym {
    if (sym) {
        NSString *tempStr = sym.data;
        if ([sym.data canBeConvertedToEncoding:NSShiftJISStringEncoding]) {
            tempStr = [NSString stringWithCString:[tempStr cStringUsingEncoding:NSShiftJISStringEncoding] encoding:NSUTF8StringEncoding];
        }
        if ([tempStr containsString:@"SMDD:"]) {
            
            NSArray * arr =[tempStr componentsSeparatedByString:@"SMDD://"];
            if (arr.count>1) {
                NSString * contentStr =arr[1];
                NSArray * array =[contentStr componentsSeparatedByString:@"||"];
                if (array.count>1) {
                    
                    [[NSNotificationCenter defaultCenter]postNotificationName:@"SKValue" object:nil userInfo:[NSDictionary dictionaryWithObject:contentStr forKey:@"contentStr"]];
                    
                }
                
            }else
            {
                UIAlertView * alter =[[UIAlertView alloc]initWithTitle:@"無效二維碼" message:nil delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
                [alter show];
            }
            
            
        }else
        {
            UIAlertView * alter =[[UIAlertView alloc]initWithTitle:@"無效二維碼" message:nil delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
            [alter show];
        }
        
        
    }
    
}
#pragma mark --返回
-(void)goBack
{
    [self.navigationController popViewControllerAnimated:YES];
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}