Question

我正在尝试调用UIImagePickerController并使用它获取的信息来更新UIImageView。我无法从信息中获取UIImage到UIImageView。

- (void)imagePickerController:(UIImagePickerController *)picker
        didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    UIImage* originalImage = nil;
    originalImage = [info objectForKey:UIImagePickerControllerOriginalImage];
    [myImage setImage:originalImage]; //also tried myImage.image = originalImage

    NSLog(@"originalImage: %@\n", originalImage);
    NSLog(@"userImage.image: %@\n", myImage.image);

    [self dismissViewControllerAnimated:YES completion:nil];

}

当我运行此代码时，UIImageView保持空白。我得到一个控制台输出：

originalImage: <UIImage: 0x80e0f90>
userImage.image: (null)

Answer 1

myImage为空，因此对它的任何调用都无效，应事先为其分配一些内容（myImage = ...或self.myImage = ...）

无法在UIImageView中更新/设置图像

1 个答案: