iphone - 尝试转到保存的照片时 UIImagePickerViewController 崩溃(在 iPhone 上)

Question

我有一个 UIImagePickerViewController。当我选择 UIImagePickerControllerSourceTypeCamera 时，它工作得很好。但是，当我尝试选择 UIImagePickerControllerSourceTypeSavedPhotosAlbum 时，它崩溃并出现此错误:

2011-09-14 01:41:21.779 NG911[378:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Source type must be UIImagePickerControllerSourceTypeCamera'

这是我的代码:

        if(![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum] || ![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
    {
        UIAlertView *noCameraAlert = [[UIAlertView alloc] initWithTitle:@"Error"
                                                                message:@"This device does not support a photo library"
                                                               delegate:nil
                                                      cancelButtonTitle:@"OK"
                                                      otherButtonTitles:nil, nil];
        [noCameraAlert setTag:2];
        [noCameraAlert show];
        [noCameraAlert release];
        return;
    }

    [picker setSourceType:UIImagePickerControllerSourceTypeSavedPhotosAlbum];
    [picker setShowsCameraControls:YES];
    [picker setAllowsEditing:NO];
    [self presentModalViewController:picker animated:YES];

非常感谢任何帮助!提前致谢!

Answer 1

你的错误在这一行

[picker setShowsCameraControls:YES];

这是抛出异常的地方，问题是在使用相册时不能将 showCameraControls 设置为 yes。只需注释该行，您应该没问题。