在EAGLview或View中使用presentViewController

Question

我有EAGLView，我正在从 glReadPixels 获取eaglview的屏幕截图。它正在工作并保存到相册，我需要与社交分享。所以，我使用了UIActivityViewController。当我在EAGLView内使用它时，我没有presentViewController的可见界面。

 UIImage *glImage = [self glToUIImage];
        UIImage *screensht = [self createSavableImage:glImage];

        NSArray *activityItems = @[screensht];

        UIActivityViewController *avc = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
        avc.excludedActivityTypes = [NSArray arrayWithObjects:UIActivityTypePrint, UIActivityTypeCopyToPasteboard, UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll, nil];
        [self presentViewController:avc animated:YES completion:nil];

Answer 1

presentViewController:animated:completion:是UIViewController类的方法，而不是UIView或其子类。代码最后一行中的self指向您的EAGLView实例。