你能告诉我，我做错了什么，照片没有显示在新的 Instagram 中吗？它根本不在那里出口。
编辑：我看到的问题是它没有显示在 Instagram 的预览中。当我去“下一步”时，会看到一个缩略图。如果重要的话，我的输出图片是 1000x1000。
NSString *savePath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/Image.igo"];
// Write image to PNG
[UIImageJPEGRepresentation(preview.image, 1.0) writeToFile:savePath atomically:YES];
NSURL *instagramURL = [NSURL URLWithString:@"instagram://app"];
if ([[UIApplication sharedApplication] canOpenURL:instagramURL])
{
//imageToUpload is a file path with .ig file extension
documentInteractionController = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:savePath]];
documentInteractionController.UTI = @"com.instagram.exclusivegram";
documentInteractionController.delegate = self;
documentInteractionController.annotation = [NSDictionary dictionaryWithObject:@"bla bla bla" forKey:@"InstagramCaption"];
[documentInteractionController presentOpenInMenuFromRect:CGRectZero inView:self.view animated:YES];