558 lines
15 KiB
Objective-C
558 lines
15 KiB
Objective-C
//
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// LBXScanBaseViewController.m
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//
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#import "LBXScanBaseViewController.h"
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#import <AssetsLibrary/AssetsLibrary.h>
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#import <Photos/Photos.h>
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#import "ScanResultViewController.h"
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//#import "LBXToast.h"
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@interface LBXScanBaseViewController ()
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@end
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@implementation LBXScanBaseViewController
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- (void)viewDidLoad {
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[super viewDidLoad];
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// Do any additional setup after loading the view.
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if ([self respondsToSelector:@selector(setEdgesForExtendedLayout:)]) {
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self.edgesForExtendedLayout = UIRectEdgeNone;
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}
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self.view.backgroundColor = [UIColor blackColor];
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#if TARGET_IPHONE_SIMULATOR
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self.view.backgroundColor = [UIColor whiteColor];
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#else
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#endif
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self.firstLoad = YES;
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}
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- (void)viewWillAppear:(BOOL)animated
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{
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[super viewWillAppear:animated];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(statusBarOrientationChanged:) name:UIApplicationDidChangeStatusBarOrientationNotification object:nil];
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}
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- (void)viewWillDisappear:(BOOL)animated
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{
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[super viewWillDisappear:animated];
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[[NSNotificationCenter defaultCenter]removeObserver:self];
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self.firstLoad = NO;
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}
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- (void)statusBarOrientationChanged:(NSNotification*)notification
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{
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}
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#pragma mark- 识别结果
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- (void)scanResultWithArray:(NSArray<LBXScanResult*>*)array
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{
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if (!array || array.count < 1)
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{
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NSLog(@"失败失败了。。。。");
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NSLog(@"失败失败了。。。。");
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NSLog(@"失败失败了。。。。");
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if (!_continuous) {
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[self reStartDevice];
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}
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return;
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}
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//经测试，可以ZXing同时识别2个二维码，不能同时识别二维码和条形码
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// for (LBXScanResult *result in array) {
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//
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// NSLog(@"scanResult:%@",result.strScanned);
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// }
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LBXScanResult *scanResult = array[0];
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NSString*strResult = scanResult.strScanned;
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if (_continuous) {
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if (strResult) {
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// [LBXToast showToastWithMessage:strResult];
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}
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return;
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}
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if (!strResult) {
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[self reStartDevice];
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return;
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}
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[self.qRScanView stopScanAnimation];
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self.scanImage = scanResult.imgScanned;
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//TODO: 这里可以根据需要添加震动或播放成功提醒音等提示相关代码
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//...
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//TODO:表示二维码位置
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//ZXing在开启区域识别后，当前计算方式不准确
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if (!self.isOpenInterestRect && self.cameraPreView && !CGRectEqualToRect(CGRectZero, scanResult.bounds) ) {
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CGFloat centerX = scanResult.bounds.origin.x + scanResult.bounds.size.width / 2;
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CGFloat centerY = scanResult.bounds.origin.y + scanResult.bounds.size.height / 2;
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//条码中心位置绘制红色正方形
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[self signCodeWithCenterX:centerX centerY:centerY];
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//条码位置边缘绘制及内部填充
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[self didDetectCodes:scanResult.bounds corner:scanResult.corners];
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dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.8 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
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// dispatch_async(dispatch_get_main_queue(), ^{
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[self showNextVCWithScanResult:scanResult];
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// });
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});
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}
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else
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{
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[self showNextVCWithScanResult:scanResult];
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}
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}
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-(UIImage *)getImageFromLayer:(CALayer *)layer size:(CGSize)size
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{
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UIGraphicsBeginImageContextWithOptions(size, YES, [[UIScreen mainScreen]scale]);
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[layer renderInContext:UIGraphicsGetCurrentContext()];
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UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return image;
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}
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- (CGPoint)pointForCorner:(NSDictionary *)corner {
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CGPoint point;
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CGPointMakeWithDictionaryRepresentation((CFDictionaryRef)corner, &point);
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return point;
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}
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- (void)handCorners:(NSArray<NSDictionary *> *)corners bounds:(CGRect)bounds
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{
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CGFloat totalX = 0;
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CGFloat totalY = 0;
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for (NSDictionary *dic in corners) {
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CGPoint pt = [self pointForCorner:dic];
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NSLog(@"pt:%@",NSStringFromCGPoint(pt));
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totalX += pt.x;
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totalY += pt.y;
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}
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CGFloat averX = totalX / corners.count;
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CGFloat averY = totalY / corners.count;
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CGFloat minSize = MIN(bounds.size.width , bounds.size.height);
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NSLog(@"averx:%f,avery:%f minsize:%f",averX,averY,minSize);
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dispatch_async(dispatch_get_main_queue(), ^{
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[self signCodeWithCenterX:averX centerY:averY];
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});
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}
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- (void)signCodeWithCenterX:(CGFloat)centerX centerY:(CGFloat)centerY
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{
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UIView *signView = [[UIView alloc]initWithFrame:CGRectMake(centerX-10, centerY-10, 20, 20)];
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[self.cameraPreView addSubview:signView];
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signView.backgroundColor = [UIColor redColor];
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self.codeFlagView = signView;
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}
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//继承者实现
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- (void)reStartDevice
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{
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}
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- (void)resetCodeFlagView
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{
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if (_codeFlagView) {
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[_codeFlagView removeFromSuperview];
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self.codeFlagView = nil;
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}
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if (self.layers) {
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for (CALayer *layer in self.layers) {
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[layer removeFromSuperlayer];
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}
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self.layers = nil;
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}
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}
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- (UIImage *)imageByCroppingWithSrcImage:(UIImage*)srcImg cropRect:(CGRect)cropRect
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{
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CGImageRef imageRef = srcImg.CGImage;
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CGImageRef imagePartRef = CGImageCreateWithImageInRect(imageRef, cropRect);
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UIImage *cropImage = [UIImage imageWithCGImage:imagePartRef];
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CGImageRelease(imagePartRef);
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return cropImage;
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}
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- (void)showNextVCWithScanResult:(LBXScanResult*)strResult
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{
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if (_continuous) {
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}else
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{
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ScanResultViewController *vc = [ScanResultViewController new];
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vc.imgScan = strResult.imgScanned;
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vc.strScan = strResult.strScanned;
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vc.strCodeType = strResult.strBarCodeType;
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[self.navigationController pushViewController:vc animated:YES];
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//隐藏标记条码位置的信息
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[self resetCodeFlagView];
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}
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}
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#pragma mark- 绘制二维码区域标志
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- (void)didDetectCodes:(CGRect)bounds corner:(NSArray<NSDictionary*>*)corners
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{
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AVCaptureVideoPreviewLayer * preview = nil;
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for (CALayer *layer in [self.cameraPreView.layer sublayers]) {
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if ( [layer isKindOfClass:[AVCaptureVideoPreviewLayer class]]) {
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preview = (AVCaptureVideoPreviewLayer*)layer;
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}
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}
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NSArray *layers = nil;
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if (!layers) {
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layers = @[[self makeBoundsLayer],[self makeCornersLayer]];
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[preview addSublayer:layers[0]];
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[preview addSublayer:layers[1]];
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}
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CAShapeLayer *boundsLayer = layers[0];
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boundsLayer.path = [self bezierPathForBounds:bounds].CGPath;
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//得到一个CGPathRef赋给图层的path属性
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if (corners) {
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CAShapeLayer *cornersLayer = layers[1];
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cornersLayer.path = [self bezierPathForCorners:corners].CGPath;
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//对于cornersLayer，基于元数据对象创建一个CGPath
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}
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self.layers = layers;
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}
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- (UIBezierPath *)bezierPathForBounds:(CGRect)bounds {
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// 图层边界，创建一个和对象的bounds关联的UIBezierPath
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return [UIBezierPath bezierPathWithRect:bounds];
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}
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- (CAShapeLayer *)makeBoundsLayer {
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//CAShapeLayer 是具体化的CALayer子类，用于绘制Bezier路径
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CAShapeLayer *shapeLayer = [CAShapeLayer layer];
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shapeLayer.strokeColor = [UIColor colorWithRed:0.96f green:0.75f blue:0.06f alpha:1.0f].CGColor;
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shapeLayer.fillColor = nil;
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shapeLayer.lineWidth = 4.0f;
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return shapeLayer;
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}
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- (CAShapeLayer *)makeCornersLayer {
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CAShapeLayer *cornersLayer = [CAShapeLayer layer];
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cornersLayer.lineWidth = 2.0f;
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cornersLayer.strokeColor = [UIColor colorWithRed:0.172 green:0.671 blue:0.428 alpha:1.0].CGColor;
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cornersLayer.fillColor = [UIColor colorWithRed:0.190 green:0.753 blue:0.489 alpha:0.5].CGColor;
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return cornersLayer;;
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}
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- (UIBezierPath *)bezierPathForCorners:(NSArray *)corners {
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UIBezierPath *path = [UIBezierPath bezierPath];
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for (int i = 0; i < corners.count; i ++) {
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CGPoint point = [self pointForCorner:corners[i]];
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//遍历每个条目，为每个条目创建一个CGPoint
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if (i == 0) {
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[path moveToPoint:point];
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} else {
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[path addLineToPoint:point];
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}
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}
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[path closePath];
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return path;
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}
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#pragma mark- 相册
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//继承者实现
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- (void)recognizeImageWithImage:(UIImage*)image
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{
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}
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-(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
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{
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__block UIImage* image = [info objectForKey:UIImagePickerControllerEditedImage];
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if (!image){
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image = [info objectForKey:UIImagePickerControllerOriginalImage];
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}
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[picker dismissViewControllerAnimated:YES completion:^{
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[self recognizeImageWithImage:image];
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}];
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}
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- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
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{
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NSLog(@"cancel");
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[picker dismissViewControllerAnimated:YES completion:nil];
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}
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#pragma mark- 权限
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- (void)requestCameraPemissionWithResult:(void(^)( BOOL granted))completion
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{
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if ([AVCaptureDevice respondsToSelector:@selector(authorizationStatusForMediaType:)])
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{
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AVAuthorizationStatus permission =
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[AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
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switch (permission) {
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case AVAuthorizationStatusAuthorized:
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completion(YES);
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break;
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case AVAuthorizationStatusDenied:
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case AVAuthorizationStatusRestricted:
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completion(NO);
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break;
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case AVAuthorizationStatusNotDetermined:
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{
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[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo
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completionHandler:^(BOOL granted) {
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dispatch_async(dispatch_get_main_queue(), ^{
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if (granted) {
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completion(true);
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} else {
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completion(false);
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}
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});
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}];
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}
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break;
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}
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}
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}
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+ (void)authorizePhotoPermissionWithCompletion:(void(^)(BOOL granted,BOOL firstTime))completion
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{
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if (@available(iOS 8.0, *)) {
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PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
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switch (status) {
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case PHAuthorizationStatusAuthorized:
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{
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if (completion) {
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completion(YES,NO);
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}
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}
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break;
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case PHAuthorizationStatusRestricted:
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case PHAuthorizationStatusDenied:
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{
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if (completion) {
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completion(NO,NO);
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}
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}
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break;
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case PHAuthorizationStatusNotDetermined:
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{
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[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
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if (completion) {
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dispatch_async(dispatch_get_main_queue(), ^{
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completion(status == PHAuthorizationStatusAuthorized,YES);
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});
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}
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}];
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}
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break;
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default:
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{
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if (completion) {
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completion(NO,NO);
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}
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}
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break;
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}
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}else{
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ALAuthorizationStatus status = [ALAssetsLibrary authorizationStatus];
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switch (status) {
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case ALAuthorizationStatusAuthorized:
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{
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if (completion) {
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completion(YES, NO);
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}
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}
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break;
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case ALAuthorizationStatusNotDetermined:
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{
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ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
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[library enumerateGroupsWithTypes:ALAssetsGroupAll
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usingBlock:^(ALAssetsGroup *assetGroup, BOOL *stop) {
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if (*stop) {
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if (completion) {
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dispatch_async(dispatch_get_main_queue(), ^{
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completion(YES, NO);
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});
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}
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} else {
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*stop = YES;
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}
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}
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failureBlock:^(NSError *error) {
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if (completion) {
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dispatch_async(dispatch_get_main_queue(), ^{
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completion(NO, YES);
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});
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}
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}];
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} break;
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case ALAuthorizationStatusRestricted:
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case ALAuthorizationStatusDenied:
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{
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if (completion) {
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completion(NO, NO);
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}
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}
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break;
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}
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}
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}
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- (BOOL)isLandScape
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{
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UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
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BOOL landScape = NO;
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switch (orientation) {
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case UIDeviceOrientationPortrait: {
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landScape = NO;
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}
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break;
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case UIDeviceOrientationLandscapeLeft: {
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landScape = YES;
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}
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break;
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case UIDeviceOrientationLandscapeRight: {
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landScape = YES;
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}
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break;
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case UIDeviceOrientationPortraitUpsideDown: {
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landScape = NO;
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}
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break;
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default:
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break;
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}
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return landScape;
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}
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- (AVCaptureVideoOrientation)videoOrientation
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{
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UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
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switch (orientation) {
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case UIDeviceOrientationPortrait: {
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return AVCaptureVideoOrientationPortrait;
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}
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break;
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case UIDeviceOrientationLandscapeRight : {
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return AVCaptureVideoOrientationLandscapeLeft;
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}
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break;
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case UIDeviceOrientationLandscapeLeft: {
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return AVCaptureVideoOrientationLandscapeRight;
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}
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break;
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case UIDeviceOrientationPortraitUpsideDown: {
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return AVCaptureVideoOrientationPortraitUpsideDown;
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}
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break;
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default:
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return AVCaptureVideoOrientationPortrait;
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break;
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}
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return AVCaptureVideoOrientationPortrait;
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}
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@end
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