Ios 添加的照片不适合UIImageView的框架

请帮助在UIImageView的框架中推送添加的照片。这张照片放不进相框。我在《IOS编程：大书呆子牧场指南》第12章“相机”中也做了同样的事情。添加照片之前：添加之后：我尝试了UIImageView的

setContentMode

，但不起作用。这是我的代码：

#pragma mark UIActionSheetDelegate

- (IBAction)displayActionSheet:(id)sender
{
    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil
                                                             delegate:self
                                                    cancelButtonTitle:@"Cancel"
                                               destructiveButtonTitle:nil
                                                    otherButtonTitles:@"Take photo", @"Choose photo from gallery", nil];

    actionSheet.actionSheetStyle = UIActionSheetStyleDefault;
    [actionSheet showInView:self.view];
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex) {
        case 0:
            [self takePhoto];
            break;
        case 1:
            [self choosePhoto];
            break;
    }
}

#pragma mark UIImagePickerControllerDelegate

- (void)takePhoto {
    UIImagePickerController *pickerControllerTakePhoto = [[UIImagePickerController alloc] init];
    [pickerControllerTakePhoto setSourceType:UIImagePickerControllerSourceTypeCamera];
    [pickerControllerTakePhoto setDelegate:self];
    [self presentViewController:pickerControllerTakePhoto animated:YES completion:nil];
}

- (void)choosePhoto {
    UIImagePickerController *pickerControllerChoosePhoto = [[UIImagePickerController alloc] init];
    [pickerControllerChoosePhoto setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
    [pickerControllerChoosePhoto setDelegate:self];
    [self presentViewController:pickerControllerChoosePhoto animated:YES completion:nil];
}

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

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我的“加号”或“添加”按钮使用对话框调用操作表，因此我从图库中选择照片，结果与第二个屏幕截图类似。

设置图像视图属性：

imageView.clipsToBounds = YES;
imageView.contentMode = UIViewContentModeScaleAspectFill;

---

这两个都可以在Interface Builder中设置。

因此我发现了一行让我感到不安的代码，这都是因为我在表格视图中放置了自定义单元格：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = nil;
    if (indexPath.row == 0) {
        photoView = (UIImageView *)[photoCell viewWithTag:1]; // this is the first custom cell in my tableview and this line which I put on the model of the book isn't needed
        cell = photoCell;
...............................

---

photoView

真的是UIImageView吗？是的，

UIImageView*photoView第二个屏幕截图：这是你吗？photoView的框架是什么？你是如何将photoView添加到视图层次结构的？它的superview是什么？不起作用，在
-（void）imagePickerController:（UIImagePickerController*）中设置了属性并添加了代码。picker未完成PickingMediaWithInfo:（NSDictionary*）信息