Пользовательская камера UIImagePickerController для iOS. Обрезка по кругу — в режиме предварительного просмотра ⇐ IOS

[Anonymous]

Я использую этот код для создания пользовательской обрезки камеры:

UIImagePickerController редактирует наложение круга просмотра

Это прекрасно работает в режиме камеры, но не позволяет фотографировать.

Если я изменю [navigationController.viewControllers count] == ​​3 --> [navigationController.viewControllers count] == ​​1 Для камеры тоже работает, но не в следующем представлении (предварительный просмотр, в котором вы соглашаетесь использовать фотографию)

Кто-нибудь поможет мне??

Код: Выделить всё

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
if (buttonIndex == 0) {
NSLog(@"Camara");
UIImagePickerController * imagePicker = [[UIImagePickerController alloc] init];
imagePicker.allowsEditing = YES;
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.delegate = self;
self.isCamera = YES;

[self presentViewController:imagePicker animated:YES completion:nil];

}else{
NSLog(@"Carrete");
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc]init];
imagePickerController.allowsEditing = YES;
imagePickerController.delegate = self;
imagePickerController.sourceType =  UIImagePickerControllerSourceTypePhotoLibrary;
self.isCamera = NO;
[self presentViewController:imagePickerController animated:YES completion:nil];
}

Код: Выделить всё

- (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated{
if (self.isCamera) {
if ([navigationController.viewControllers count] == 1)
{
CGFloat screenHeight = [[UIScreen mainScreen] bounds].size.height;

UIView *plCropOverlay = [[[viewController.view.subviews objectAtIndex:1]subviews] objectAtIndex:0];

plCropOverlay.hidden = YES;

int position = 0;

if (screenHeight == 568)
{
position = 124;
}
else
{
position = 80;
}

CAShapeLayer *circleLayer = [CAShapeLayer layer];

UIBezierPath *path2 = [UIBezierPath bezierPathWithOvalInRect:
CGRectMake(0.0f, position, 320.0f, 320.0f)];
[path2 setUsesEvenOddFillRule:YES];

[circleLayer setPath:[path2 CGPath]];

[circleLayer setFillColor:[[UIColor clearColor] CGColor]];
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, 320, screenHeight-72) cornerRadius:0];

[path appendPath:path2];
[path setUsesEvenOddFillRule:YES];

CAShapeLayer *fillLayer = [CAShapeLayer layer];
fillLayer.path = path.CGPath;
fillLayer.fillRule = kCAFillRuleEvenOdd;
fillLayer.fillColor = [UIColor blackColor].CGColor;
fillLayer.opacity = 0.8;
[viewController.view.layer addSublayer:fillLayer];

UILabel *moveLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 10, 320, 50)];
[moveLabel setText:@"Move and Scale"];
[moveLabel setTextAlignment:NSTextAlignmentCenter];
[moveLabel setTextColor:[UIColor whiteColor]];

[viewController.view addSubview:moveLabel];
}

}else{
if ([navigationController.viewControllers count] == 3)
{
CGFloat screenHeight = [[UIScreen mainScreen] bounds].size.height;

UIView *plCropOverlay = [[[viewController.view.subviews objectAtIndex:1]subviews] objectAtIndex:0];

plCropOverlay.hidden = YES;

int position = 0;

if (screenHeight == 568)
{
position = 124;
}
else
{
position = 80;
}

CAShapeLayer *circleLayer = [CAShapeLayer layer];

UIBezierPath *path2 = [UIBezierPath bezierPathWithOvalInRect:
CGRectMake(0.0f, position, 320.0f, 320.0f)];
[path2 setUsesEvenOddFillRule:YES];

[circleLayer setPath:[path2 CGPath]];

[circleLayer setFillColor:[[UIColor clearColor] CGColor]];
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, 320,  screenHeight-72) cornerRadius:0];

[path appendPath:path2];
[path setUsesEvenOddFillRule:YES];

CAShapeLayer *fillLayer = [CAShapeLayer layer];
fillLayer.path = path.CGPath;
fillLayer.fillRule = kCAFillRuleEvenOdd;
fillLayer.fillColor = [UIColor blackColor].CGColor;
fillLayer.opacity = 0.8;
[viewController.view.layer addSublayer:fillLayer];

UILabel *moveLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 10, 320, 50)];
[moveLabel setText:@"Move and Scale"];
[moveLabel setTextAlignment:NSTextAlignmentCenter];
[moveLabel setTextColor:[UIColor whiteColor]];

[viewController.view addSubview:moveLabel];
}

}

Подробнее здесь: https://stackoverflow.com/questions/283 ... eview-view