扫描二维码、条形码，生成二维码
iOS-ScanningCode
Support for generating two-dimensional code, two-dimensional code scanning.
支持生成二维码，扫描二维码、条形码。
Image Displey(图片展示)
github地址，喜欢的朋友点个星星啊
Getting Start(开始使用)
#import "ViewController.h"
#import "XYLScaningCode.h"
@interface ViewController (){
AVCaptureDevice *frontCamera; //前置摄像机
AVCaptureDevice *backCamera; //后置摄像机
AVCaptureSession *session; //捕捉对象
AVCaptureVideoPreviewLayer *previewLayer;
AVCaptureInput *input; //输入流
AVCaptureMetadataOutput *output;//输出流
BOOL isTorchOn;
}
@property (nonatomic, assign) XYLScaningWarningTone tone;
@property (nonatomic, strong) XYLScanView *overView; //扫码界面
@property(strong, nonatomic)XYLBinaryCodeView *binaryCodeView; //二维码界面
@property(weak, nonatomic)XYLToolButton *scanButton;
@property(weak, nonatomic)XYLToolButton *payCodeButton;
@property(weak, nonatomic)UILabel *titleLabel;
@end
创建并添加生成二维码界面
//设置生成二维码界面
self.binaryCodeView = [[XYLBinaryCodeView alloc]initWithFrame:[UIScreen mainScreen].bounds];
//设置二维码的内容
self.binaryCodeView.inputData = @"www.baidu.com";
[self.view insertSubview:self.binaryCodeView atIndex:1];
创建并添加扫描二维码界面
//点击扫码
-(void)scanSelected
{
if (![self.overView isDisplayedInScreen])
{
#if TARGET_IPHONE_SIMULATOR
UIAlertController *simulatorAlert = [UIAlertController alertControllerWithTitle:nil message:@"虚拟机不支持相机" preferredStyle:UIAlertControllerStyleActionSheet];
[simulatorAlert addAction:[UIAlertAction actionWithTitle:@"好吧" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
return;
}]];
[self presentViewController:simulatorAlert animated:YES completion:nil];
#elif TARGET_OS_IPHONE
//判断相机权限
[self isVideoUseable];
self.binaryCodeView.hidden = YES;
if (self.overView) {
self.overView.hidden = NO;
}else{
//添加扫面界面视图
[self initOverView];
[self initCapture];
[self config];
[self initUI];
[self addGesture];
}
#endif
}
}
-(void)isVideoUseable
{
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if (authStatus == AVAuthorizationStatusRestricted || authStatus == AVAuthorizationStatusDenied)
{
UIAlertController *simulatorAlert = [UIAlertController alertControllerWithTitle:nil message:@"相机权限未开通，请打开" preferredStyle:UIAlertControllerStyleActionSheet];
[simulatorAlert addAction:[UIAlertAction actionWithTitle:@"好吧" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
return;
}]];
[self presentViewController:simulatorAlert animated:YES completion:nil];
}
}
/**
* 添加扫码视图
*/
- (void)initOverView
{
if (!_overView) {
_overView = [[XYLScanView alloc]initWithFrame:[UIScreen mainScreen].bounds lineMode:XYLScaningLineModeGrid ineMoveMode:XYLScaningLineMoveModeUpAndDown];
_overView.delegate = self;
[self.view insertSubview:_overView atIndex:1];
}
}
- (void)initCapture
{
//创建捕捉会话
session = [[AVCaptureSession alloc]init];
//高质量采集率
[session setSessionPreset:AVCaptureSessionPresetHigh];
//获取摄像设备
NSArray *devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];
for (AVCaptureDevice *camera in devices) {
if (camera.position == AVCaptureDevicePositionFront) {
frontCamera = camera;
}else{
backCamera = camera;
}
}
//创建输入流
input = [AVCaptureDeviceInput deviceInputWithDevice:backCamera error:nil];
//输出流
output = [[AVCaptureMetadataOutput alloc]init];
//设置代理 在主线程里刷新
[output setMetadataObjectsDelegate:self queue:dispatch_get_main_queue()];
//添加输入设备(数据从摄像头输入)
if ([session canAddInput:input]) {
[session addInput:input];
}
//添加输出数据
if ([session canAddOutput:output]) {
[session addOutput:output];
}
//设置设置输入元数据的类型(如下设置条形码和二维码兼容)
output.metadataObjectTypes = @[AVMetadataObjectTypeEAN13Code,
AVMetadataObjectTypeEAN8Code,
AVMetadataObjectTypeCode128Code,
AVMetadataObjectTypeQRCode];
//添加扫描图层
previewLayer = [AVCaptureVideoPreviewLayer layerWithSession:session];
previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
previewLayer.frame = self.view.layer.bounds;
[self.view.layer insertSublayer:previewLayer atIndex:0];
//开始捕获
[session startRunning];
CGFloat screenHeight = ScreenSize.height;
CGFloat screenWidth = ScreenSize.width;
CGRect cropRect = CGRectMake((screenWidth - TransparentArea([_overView width], [_overView height]).width) / 2,
(screenHeight - TransparentArea([_overView width], [_overView height]).height) / 2,
TransparentArea([_overView width], [_overView height]).width,
TransparentArea([_overView width], [_overView height]).height);
//设置扫描区域
[output setRectOfInterest:CGRectMake(cropRect.origin.y / screenHeight,
cropRect.origin.x / screenWidth,
cropRect.size.height / screenHeight,
cropRect.size.width / screenWidth)];
}
/**
* 获取扫描数据
*/
- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection
{
NSString *stringValue;
if (metadataObjects.count > 0) {
AVMetadataMachineReadableCodeObject *metadateObject = [metadataObjects objectAtIndex:0];
stringValue = metadateObject.stringValue;
[self readingFinshedWithMessage:stringValue];
[previewLayer removeFromSuperlayer];
}
}
/**
* 读取扫描结果
*/
- (void)readingFinshedWithMessage:(NSString *)msg
{
if (msg) {
[session stopRunning];
[self saveInformation:msg];
[self playSystemSoundWithStyle:_tone];
[self.overView stopMove];
UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:msg preferredStyle:UIAlertControllerStyleActionSheet];
[alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"扫描出来结果%@",msg);
//todo：在这里添加扫描结果后的处理
[self.overView removeFromSuperview];
self.overView = nil;
[self payCodeSelected];
}]];
[self presentViewController:alert animated:YES completion:nil];
}else
{
UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:@"读取失败" preferredStyle:UIAlertControllerStyleActionSheet];
[alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"点击了确定");
}]];
[self presentViewController:alert animated:true completion:nil];
}
}
- (void)saveInformation:(NSString *)strValue{
NSMutableArray *history = [NSMutableArray arrayWithArray:[[NSUserDefaults standardUserDefaults]objectForKey:@"history"]];
NSDictionary *dic = [NSDictionary dictionaryWithObjects:@[strValue, [self getSystemTime]] forKeys:@[@"value",@"time"]];
if (!history)
{
history = [NSMutableArray array];
}
[history addObject:dic];
[[NSUserDefaults standardUserDefaults]setObject:history forKey:@"history"];
}
- (NSString *)getSystemTime{
NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
[formatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];
return [formatter stringFromDate:[NSDate date]];
}
- (void)playSystemSoundWithStyle:(XYLScaningWarningTone)tone{
NSString *path = [NSString stringWithFormat:@"%@/scan.wav", [[NSBundle mainBundle] resourcePath]];
SystemSoundID soundID;
NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO];
AudioServicesCreateSystemSoundID((__bridge CFURLRef)(filePath), &soundID);
switch (tone) {
case XYLScaningWarningToneSound:
AudioServicesPlaySystemSound(soundID);
break;
case XYLScaningWarningToneVibrate:
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
break;
case XYLScaningWarningToneSoundAndVibrate:
AudioServicesPlaySystemSound(soundID);
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
break;
default:
break;
}
}
