CODEWITHSUNDEEP
iosinstagram
johnnyg17
johnnyg17

Reputation: 620

Instagram Video iPhone Hook

The current best solution:

https://stackoverflow.com/a/21888830/1786820

I am trying to do one better, by opening the Instagram app with a preselected video file from the PhotoRoll, and a preloaded caption. In the Flipagram app, they do just this. When you hit share on a video, they save it your camera roll, suggest a caption, then direct to the Instagram app photo selection screen, with the video preselected. Even if the video is not the latest media in the PhotoRoll, it correctly highlights the correct video, along the caption prepared in the Flipagram app.

Is this possibly an undocumented iPhone hook?

Any help is appreciated.

Upvotes: 2

Views: 5090

Answers (2)

johnnyg17
johnnyg17

Reputation: 620

I came up with the idea to allow my app to accept the instagram:// URL schema. The hook from Flipagram opened up in my app as the following:

instagram://library?AssetPath=assets-library%3A%2F%2Fasset%2Fasset.mp4%3Fid%3D8864C466-A45C-4C48-B76F-E3C421711E9D%26ext%3Dmp4&InstagramCaption=Some%20Preloaded%20Caption

The undocumented iPhone hook that allows you to automatically select assets from the iPhones photo roll, and preload a caption for the video. This should give you the same user experience that Flipagrams app has with sharing a video to Instagram.

NSURL *videoFilePath = ...; // Your local path to the video
NSString *caption = @"Some Preloaded Caption";
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library writeVideoAtPathToSavedPhotosAlbum:[NSURL URLWithString:videoFilePath] completionBlock:^(NSURL *assetURL, NSError *error) {
    NSURL *instagramURL = [NSURL URLWithString:[NSString stringWithFormat:@"instagram://library?AssetPath=%@&InstagramCaption=%@",[assetURL absoluteString].percentEscape,caption.percentEscape]];
    if ([[UIApplication sharedApplication] canOpenURL:instagramURL]) {
        [[UIApplication sharedApplication] openURL:instagramURL];
    }
}];

Works great!

Update: Instagram has removed the ability to pass the caption to their app. The best solution now it to just copy the desired caption to the paste board.

Upvotes: 13

Dima
Dima

Reputation: 23634

The answer is that it is not pulling the video from the camera roll at all, it might just look like it is.

Documentation here: http://instagram.com/developer/mobile-sharing/iphone-hooks/

The relevant bit is the bottom section "Document Interaction".

You would do this by doing something like this:

NSString *filePath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"instagram.igo"];
NSData *data = // set this yourself

NSError *error = nil;
if (! [data writeToFile:filePath options:NSDataWritingAtomic error:&error])
{
    // error here
}

self.documentInteractionController = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:filePath]];
self.documentInteractionController.delegate = self;
self.documentInteractionController.UTI = @"com.instagram.exclusivegram";
self.documentInteractionController.annotation = @{ @"InstagramCaption" : @"caption text here" };
const BOOL couldOpen = [self.documentInteractionController presentOpenInMenuFromRect:CGRectZero inView:myView animated:YES];

Set the data, the caption, and the view to present from yourself. Notice the UIDocumentInteractionController is also a property. It should be retained somewhere and not just a local variable in a method because it needs to exist outside of that scope when the method completes.

Upvotes: 0

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