[iOS][Objective-c] 图像选择器到下一个控制器

Posted 2023-03-12

【中文标题】[iOS][Objective-c] 图像选择器到下一个控制器

【英文标题】：[iOS][Objective-c] imagepicker to next controller

【发布时间】：2016-02-18 11:10:58

【问题描述】：

- (IBAction)sendPhoto:(id)sender 
    [DinsowMiniLogger log:@"Image: %@", self.pickedImage];
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    [self presentViewController:picker animated:YES completion:nil];


- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
    [picker dismissViewControllerAnimated:YES completion:nil];
    [[self navigationController] dismissViewControllerAnimated:YES completion:nil];
    self.selMediaItem = [self.storyboard instantiateViewControllerWithIdentifier:@"selectmedia"];
    [self presentModalViewController:self.selMediaItem animated:YES];
    self.selMediaItem.imgMediaSelect.image = [info objectForKey:UIImagePickerControllerOriginalImage];

我想将图像发送到下一个控制器但出错

由于未捕获的异常而终止应用程序 'NSInvalidArgumentException'，原因：'-[UINavigationController imgMediaSelect]：无法识别的选择器发送到实例 0x15979a00'

更新 我将 uiimagepickercontroller 方法移动到下一个控制器

【问题讨论】：

能否请您说明您在哪里定义了 imgMediaSelect？

只需在下一个视图控制器中定义 UIImage 的属性，然后在此处分配您的图像 self.selMediaItem.imageProperty=[info objectForKey:UIImagePickerControllerOriginalImage];然后你的下一个视图控制器中有图像。

【参考方案1】：

您的didFinishPickingMediaWithInfo 方法应如下所示。在执行任何操作之前，您将关闭您的视图。

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
    UIImage *browsed_Image =  [info objectForKey:UIImagePickerControllerOriginalImage];
   [picker dismissViewControllerAnimated:YES completion:^
       if (browsed_Image) 
           // You can store here your image in UIImage object or directly pass it to next controller.
           [btn_UserImage setImage:browsed_Image forState:UIControlStateNormal];
        
    ];