使用URL参考方案打开主题演讲，触摸uibutton

Question

这可能吗？我已经尝试过以下代码，但我无法编译：

- (IBAction)KeynoteButton:(id)sender {

    UIDocumentInteractionController *controller = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:@"2bm iPad presentation.key"]];
    self.controller.delegate = self;
    CGRect navRect = self.view.frame;
    [self.controller presentOptionsMenuFromRect:navRect inView:self.view animated:YES];
}

#pragma mark - UIDocumentInteractionControllerDelegate

//===================================================================
- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller
{
    return self;
}

- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller
{
    return self.view;
}

- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller
{
    return self.view.frame;
}

它在self.controller上崩溃，因为它不是属性。

有什么想法吗？

Answer 1

我认为你需要拿出“自我”。由于控制器是局部变量。