Question

好的，所以我创建了一个从相机或相机胶卷拍照的应用程序，我可以在同一个视图控制器中选择后显示图像。我想要做的是获取图片并将其加载到一个新的视图控制器中，这样我就可以有一个新的工具栏，可以添加叠加图像

这是我的按钮代码

- (IBAction) useCameraRoll:(id)sender
{
if ([UIImagePickerController isSourceTypeAvailable:
     UIImagePickerControllerSourceTypeSavedPhotosAlbum])
{
    UIImagePickerController *imagePicker =
    [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.sourceType =
    UIImagePickerControllerSourceTypePhotoLibrary;
    imagePicker.mediaTypes = @[(NSString *) kUTTypeImage];
    imagePicker.allowsEditing = NO;
    [self presentViewController:imagePicker
                       animated:YES completion:nil];
    _newMedia = NO;

}
}

这是我的SecondViewController.h

@interface SecondViewController : UIViewController
<UIImagePickerControllerDelegate,
UINavigationControllerDelegate>

@property BOOL newMedia;
@property (strong, nonatomic) IBOutlet UIImageView *imageView;
- (void)useCamera:(id)sender;
- (void)useCameraRoll:(id)sender;
@end

#import "BESPOKEViewController.h"
#import "SecondViewController.h"

@interface BESPOKEViewController ()

@end

@implementation BESPOKEViewController





- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}// The method that gets called when you want to present the second view controller

- (void)showSecondViewControllerButton:(id)sender
{
UIImage *imageToDisplay = self.imageView.image;

SecondViewController *secondViewController = [[SecondViewController alloc] init];
secondViewController.image = imageToDisplay;

// Or present it another way
[self presentViewController:secondViewController animated:YES completion:nil];
}


- (IBAction) useCamera:(id)sender
{
if ([UIImagePickerController isSourceTypeAvailable:
     UIImagePickerControllerSourceTypeCamera])
{
    UIImagePickerController *imagePicker =
    [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.sourceType =
    UIImagePickerControllerSourceTypeCamera;
    imagePicker.mediaTypes = @[(NSString *) kUTTypeImage];
    imagePicker.allowsEditing = NO;
    [self presentViewController:imagePicker
                       animated:YES completion:nil];
    _newMedia = YES;
    }
}
- (IBAction) useCameraRoll:(id)sender
{
if ([UIImagePickerController isSourceTypeAvailable:
     UIImagePickerControllerSourceTypeSavedPhotosAlbum])
{
    UIImagePickerController *imagePicker =
    [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.sourceType =
    UIImagePickerControllerSourceTypePhotoLibrary;
    imagePicker.mediaTypes = @[(NSString *) kUTTypeImage];
    imagePicker.allowsEditing = NO;
    [self presentViewController:imagePicker
                       animated:YES completion:nil];
    _newMedia = NO;

  }
}

-(void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
  NSString *mediaType = info[UIImagePickerControllerMediaType];






if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
    UIImage *image = info[UIImagePickerControllerOriginalImage];

    _imageView.image = image;
    if (_newMedia)
        UIImageWriteToSavedPhotosAlbum(image,
                                       self,


  @selector(image:finishedSavingWithError:contextInfo:),
                                        nil);


  }
 else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie])
  {
    // Code here to support video if enabled
  }
  [self dismissViewControllerAnimated:YES completion:nil];}

-(void)image:(UIImage *)image
finishedSavingWithError:(NSError *)error
 contextInfo:(void *)contextInfo
{
if (error) {
    UIAlertView *alert = [[UIAlertView alloc]
                          initWithTitle: @"Save failed"
                          message: @"Failed to save image"
                          delegate: nil
                          cancelButtonTitle:@"OK"
                          otherButtonTitles:nil];
    [alert show];
}
}
@end

这是我的SVC.m

 //
 //  Created by AppyWorld on 26/04/2014.
//  Copyright (c) 2014 AppyWorld. All rights reserved.
//

#import "SecondViewController.h"

@interface SecondViewController ()

@end

@implementation SecondViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
    // Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
// You override the setter so that the image you give it gets displayed in the image         

view
- (void)setImage:(UIImage *)image
{
_image = image;



}- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation       before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/

@end

提前致谢

如果您想要任何其他代码，请告诉我们：）

Answer 1

这tutorial绰绰有余;）

如何在新的视图控制器中查看来自相机胶卷/相机的图像

1 个答案: