ios - 使用自定义 UIActivity 将数据获取到其他 ViewController

Question

我尝试将自定义图标添加到 UIActivity，我做到了，但我无法设置 UIACtivity。当我单击图标打开其他 ViewController 并从 UIActivity 获取文本和图像时，我想要帽子。我有这个代码

- (UIViewController *)activityViewController
{
    ViewController *viewController = [[[ViewController alloc] init] autorelease];
    viewController.activity = self;
    viewController.modalTransitionStyle=UIModalTransitionStyleCoverVertical;

    return viewController;
}

但这不起作用

- (void)performActivity


{
    ViewController *viewController = [[[ViewController alloc] init] autorelease];
    [viewController.textField1 setText:self.message];
    [viewController.imageView setImage:self.image];
    [self activityDidFinish:YES];
}