将图像从一个视图传递到其他iOS

Question

我的应用中有2 UIViewController个。

1. 在第一 viewController中，我在工具栏中有一个UIButton。
2. 当我点击按钮时，它会显示UIActionSheet以选择是从相机还是从图库中拍摄照片。
3. 当我选择，例如，从图库中拍照并选择一张图片时，它会在第一张viewController中显示图片。

我想要的是从图库照片或相机拍摄照片，然后转到第二 viewController并在第二 {中显示图片{1}}。

我搜索了很多并尝试了很多代码，但它不起作用。

以下是viewController

的代码

ViewController.m

---

在我的第二个视图中，我创建了一个- (IBAction)PictureButton:(UIButton *)sender { NSLog(@"Click button take picture in toolbar view 1"); UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Photo" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Picture From Camera", @"Picture From Gallery", nil]; [actionSheet setTag:1001]; [actionSheet showInView:self.view]; } -(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex { switch (buttonIndex) { case 0: { // Take a picture from camera UIImagePickerController * picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypeCamera; [self presentModalViewController:picker animated:YES]; } break; case 1: { // take a picture from gallery photos UIImagePickerController * picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; [self.view addSubview:toolbar]; [self presentModalViewController:picker animated:YES]; } break; } -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker dismissModalViewControllerAnimated:YES]; imageView.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; } ，这是UIImageView

中的代码

SecondViewController.h

你可以帮帮我吗 抱歉我的英语不好，谢谢

Answer 1

您似乎想要在FirstViewController选择图片并将其显示在SecondViewContoller中。但是，您没有做任何事情要切换到SecondViewController并将所选图片传递给ViewController.m。

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    [picker dismissModalViewControllerAnimated:YES];

    UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
    SecondViewController *secondViewController = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    secondViewController.imageButton.image = image;
    [self.navigationController pushViewController:secondViewController animated:YES];
 }