CODEWITHSUNDEEP
facebookuikitios11ios8-share-extension
Frank Rupprecht
Frank Rupprecht

Reputation: 10383

Facebook share extension crashing in iOS 11

I'm using the UIActivityViewController to enable the user to share images on social media. However, Facebook's share dialog crashes in iOS 11 after a few seconds with the following log:

[core] SLRemoteComposeViewController: (this may be harmless) viewServiceDidTerminateWithError: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} [core] SLComposeViewController remoteViewController: <SLRemoteComposeViewController: 0x1040b7e00> didTerminateWithError: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method}

The error doesn't occur in iOS 10, though the image takes a few seconds to be displayed.

Any idea what's causing this issue? Do I have to wait for Facebook to fix this?

Upvotes: 2

Views: 3966

Answers (4)

dkcas11
dkcas11

Reputation: 103

The answer from Karen Hovhannisyan is correct. Images with a scale larger than 1.0 will crash both Twitter and Facebook. Scaling the image does the trick. However its not really ideal. I tried to normalise the image by increasing the size to match the resolution, but that also caused a crash. Might be because the image was too large.

func shareableImage(image: UIImage) -> UIImage {
    guard let cgImage = image.cgImage else { return image }
      let size: CGSize = CGSize(width: CGFloat(cgImage.width) / image.scale, height: CGFloat(cgImage.height) / image.scale)

    defer {
        UIGraphicsEndImageContext()
    }

    UIGraphicsBeginImageContextWithOptions(size, false, 1)

    image.draw(in: CGRect(origin: .zero, size: size))

    return UIGraphicsGetImageFromCurrentImageContext() ?? image
}

Upvotes: 1

Karen Hovhannisyan
Karen Hovhannisyan

Reputation: 1248

In may case Facebook, Twitter and Whatsapp share extensions crashing because share image scale property is > 1.0

Upvotes: 0

Jack Tiong
Jack Tiong

Reputation: 947

I was facing the same issue upon sharing images to Whatsapp where the share dialog closes by itself after a few seconds. Thanks to @Mike Demidov, I realised that something is wrong with the images to be shared due to the way I saved the images as shown below.

if let testImage = UIImageJPEGRepresentation(self.testImageView.image!, 0.5) {

    let destinationUrl = DocumentHelper.getDocumentsDirectory().appendingPathComponent(identifier + "_test.png")

    try? testImage.write(to: destinationUrl)

}

The reason being is because I'm using UIImageJPEGRepresentation to convert the image but I was setting the image name / file format as .png.

All I did to solve my issue was to change it to .jpeg as shown below.

if let testImage = UIImageJPEGRepresentation(self.testImageView.image!, 0.5) {

    let destinationUrl = DocumentHelper.getDocumentsDirectory().appendingPathComponent(identifier + "_test.jpeg")

    try? testImage.write(to: destinationUrl)

}

Hope it helps!

Upvotes: 0

Earl0Grey
Earl0Grey

Reputation: 507

Facebook is no longer integrated in iOS 11. You can integrate the native Facebook SDK and use this code:

FBSDKSharePhoto *photo = [[FBSDKSharePhoto alloc] init];
photo.image = _image;
photo.userGenerated = YES;
FBSDKSharePhotoContent *content = [[FBSDKSharePhotoContent alloc] init];
content.photos = @[photo];
[FBSDKShareDialog showFromViewController:self withContent:content delegate:self];

It works only if the native Facebook app is installed on device(iOS 10 and prior without app) and you can check it:

BOOL isInstalledFBApp = [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"fbshareextension://"]];

For more information: https://developers.facebook.com/docs/sharing/ios/

Upvotes: 1

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