UIDocumentInteractionController通过Instagram分享(仅限Instagram)

Question

当我UIDocumentInteractionController用来允许用户通过Instagram分享它确实有效时,它会提供"打开方式"和"Instagram"作为选项之一的选项......问题是它还会显示许多其他应用程序,如"Facebook" "和"推特"......

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有什么方法我可以让它只提供在Instagram应用程序中打开的选项？

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Instagram声称有一种方法可以做到这一点:http://instagram.com/developer/iphone-hooks/但他们提到了这一点:
"Alternatively, if you want to show only Instagram in the application list (instead of Instagram plus any other public/jpeg-conforming apps) you can specify the extension class igo, which is of type com.instagram.exclusivegram."

但老实说,我不知道这部分是什么意思," extension class igo"

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我的代码:

UIImage *imageToUse = [UIImage imageNamed:@"imageToShare.png"];
NSString *documentDirectory=[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
NSString *saveImagePath=[documentDirectory stringByAppendingPathComponent:@"Image.ig"];
NSData *imageData=UIImagePNGRepresentation(imageToUse);
[imageData writeToFile:saveImagePath atomically:YES];
NSURL *imageURL=[NSURL fileURLWithPath:saveImagePath];
docController = [UIDocumentInteractionController interactionControllerWithURL:imageURL];
docController.delegate = self;
docController.annotation = [NSDictionary dictionaryWithObjectsAndKeys:[NSString stringWithFormat:@"This is the users caption that will be displayed in Instagram"], @"InstagramCaption", nil];
docController.UTI = @"com.instagram.exclusivegram";
[docController presentOpenInMenuFromRect:CGRectMake(1, 1, 1, 1) inView:self.view animated:YES];

Answer 1

原来让doc控制器只在Instagram中打开你只需保存你的png或jpg文件格式为".igo"文件类型扩展名,(也许代表Instagram-Only？)



改变了我的代码中的第三行代码来读取相反:

NSString *saveImagePath=[documentDirectory stringByAppendingPathComponent:@"Image.igo"];

(用"igo")

然后它工作了!:)