分享的内容,大家看了后,不管有什么问题或者建议,都可以说出来,我都会一一做答,一起加油啦
我的下一篇 <<iOS从相册读取二维码>>需要的话也可以借鉴,原理一样
我的上一篇<<iOS 二维码的生成>>也可以学习
一般公司业务中,二维码的生成与获取是同时进行的.比如我们公司做智能门锁的,需求中就有,能够分发蓝牙钥匙(通过二维码), 以及扫描二维码,导入钥匙
如果想自己生成二维码做测试,可以用网站:在线二维码图片生成器_二维码扫描软件下载_联图二维码
测试数据格式可以是如下:{"validTo" : "2018-08-26 18:11:38","validFrom" : "2016-08-26 18:11:33", "openTimes" : 0,"name" : "蓝牙钥匙","mac" : "D5:CC:F1:13:92:7C"} 注意:{}要带上
代码如下:
1.先自定义一个透明扫描框
2.在扫描页面
//// 定义属性如下:
@interface ZKScanViewController ()// 扫描二维码的详情页面
@property (strong, nonatomic) AVAudioPlayer *beepPlayer;
@property (strong, nonatomic) CIDetector *detector;
@property (strong, nonatomic) AVCaptureDevice * device;
@property (strong, nonatomic) AVCaptureDeviceInput * input;
@property (strong, nonatomic) AVCaptureMetadataOutput * output;
@property (strong, nonatomic) AVCaptureSession * session;
@property (strong, nonatomic) AVCaptureVideoPreviewLayer * preview;
///// 在viewDidLoad中
- (void)viewDidLoad {
[super viewDidLoad];
//[self viewDidAppear:YES];
[self UpDateUI];
_device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
// Input
_input = [AVCaptureDeviceInput deviceInputWithDevice:self.device error:nil];
// Output
_output = [[AVCaptureMetadataOutput alloc]init];
[_output setMetadataObjectsDelegate:self queue:dispatch_get_main_queue()];
// Session
_session = [[AVCaptureSession alloc]init];
[_session setSessionPreset:AVCaptureSessionPresetHigh];
if ([_session canAddInput:self.input])
{
[_session addInput:self.input];
}
if ([_session canAddOutput:self.output])
{
[_session addOutput:self.output];
}
// Preview
_preview =[AVCaptureVideoPreviewLayer layerWithSession:_session];
_preview.videoGravity =AVLayerVideoGravityResizeAspectFill;
_preview.frame =self.view.layer.bounds;
[self.view.layer insertSublayer:_preview atIndex:0];
// 开始扫描
[_session startRunning];
}
// 直接扫描
#pragma mark AVCaptureMetadataOutputObjectsDelegate
- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection
{
NSString *stringValue;
NSLog(@"----array%@",metadataObjects);
// 扫描到对象
if ([metadataObjects count] >0)
{
NSMutableArray *myMutableArray = [metadataObjects mutableCopy];
//停止扫描
[_session stopRunning];
AVMetadataMachineReadableCodeObject * metadataObject = [myMutableArray objectAtIndex:0];
stringValue = metadataObject.stringValue;
NSLog(@"---stringValue---%@",stringValue);
// 过滤
[self filterStr:stringValue];
NSError *error = nil;
NSDictionary *stringdic = [NSJSONSerialization JSONObjectWithData: [stringValue dataUsingEncoding:NSUTF8StringEncoding]
options: NSJSONReadingAllowFragments error:&error];
NSLog(@"-----stringdic----%@",stringdic);
NSLog(@"-----error----%@",error);
// 如果字典为空,弹出提示框
if (stringdic == nil) {
dispatch_async(dispatch_get_main_queue(), ^{
[self alertView];
});
[_coverView removeFromSuperview];
[_session startRunning];
return;
}
// 跳转到下一页面,传值
ZKImportKeyViewController *keyInfoVC = [[ZKImportKeyViewController alloc]init];
keyInfoVC.scanResultDict = stringdic;
[self.navigationController pushViewController:keyInfoVC animated:YES];
[myMutableArray removeAllObjects];
}
}
////过滤空格等
- (void)filterStr:(NSString *)stringValue {
stringValue = [stringValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
stringValue = [stringValue stringByReplacingOccurrencesOfString:@"\r\n" withString:@""];
stringValue = [stringValue stringByReplacingOccurrencesOfString:@"\n" withString:@""];
stringValue = [stringValue stringByReplacingOccurrencesOfString:@"\t" withString:@""];
}
