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我被要求制作一个应用程序，为他们的猫提供随机字幕。我有 2 个问题，我一步一步按照教程进行操作，但没有任何效果。1. 拍摄或选择图片时，它不会显示在 UIImageView 中，故事板中的每件事都喜欢我只是不明白。另外，我制作了一个 IBAction，它在其中生成随机标题，并且在按下按钮时工作正常，无论如何，当拍摄或选择图片时，标题会自动显示吗？这是我在 .M 文件中的代码。我是制作应用程序的初学者。

#import "Generator.h"

@interface Generator ()

@end

@implementation Generator

-(IBAction)TakePhoto{
    picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    [picker setSourceType:UIImagePickerControllerSourceTypeCamera];
    [self presentViewController:picker animated:YES completion:NULL];

}
-(IBAction)ChooseExisting{
    picker2 = [[UIImagePickerController alloc] init];
    picker2.delegate = self;
    [picker2 setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
    [self presentViewController:picker2 animated:YES completion:NULL];

}
-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    image = [info objectForKey:UIImagePickerControllerOriginalImage];
    [self dismissViewControllerAnimated:YES completion:NULL];
}

-(void) imagePickerControllerDidCancel:(UIImagePickerController *)picker {
    [self dismissViewControllerAnimated:YES completion:NULL];
}

-(IBAction)Back{
    [self dismissViewControllerAnimated:YES completion:NULL];
}

-(IBAction)random {
    int text = rand() % 10;
    switch (text) {
        case 0:
            textview.text = @"I'd Say About Average";
            break;
        case 1:
            textview.text = @"Happy but Hideous";
            break;
        case 2:
            textview.text = @"Furrific";
            break;
        case 3:
            textview.text = @"Cuddly";
            break;
        case 4:
            textview.text = @"Abby Normal";
            break;
        case 5:
            textview.text = @"Purrty";
            break;
        case 6:
            textview.text = @"Yuck";
            break;
        case 7:
            textview.text = @"Glowing";
            break;
        case 8:
            textview.text = @"AWWWWWW";
            break;
        case 9:
            textview.text = @"The Cutest";
            break;
        default:
            break;
    }
}



- (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.
}

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

@end

任何帮助都可以。我的 SDK 是 iOS 6.1

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1 回答 1

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图像是自动发布的。在超出范围之前设置您的 imageView，或保留它。如果你把它连接到任何东西上，它应该留在记忆中并显示出来。

于 2013-03-28T22:02:32.570 回答