sharing

How long is Facebook caching the sharing thumbnails? I've added a custom thumbnail for my page using: <meta property="og:image" content="/path/to/my/image" /> But on pages my previous image is displayed => it is cached somewhere on FB servers. Any ideas how to flush that cache or how long does it take once FB loads a new image? Check the page with Facebook URL Linter, it seems to reload the thumbnails images in the cache. http://developers.facebook.com/tools/lint azhure Facebook images are cached on a different servers on a different location. According to what I have read, it will take 3 to 5

This question already has an answer here: How to share an image on Instagram in iOS? 17 answers I have been searching a way to post photo to Instagram from a iOS app I am developing. But seeing some links , it seems to be they don't support write access using their API. So, Is it possible to share photo to Instagram from iOS by some API or Instagram API ? If possible can anybody please suggest me a tutorial or documentation to do that ? Their api says this... "At this time, uploading via the API is not possible. We made a conscious choice not to add this for the following reasons: Instagram is

I am writing an application that runs as a background service recording and analyzing audio recorded from the microphone. When my app is running I can't use other apps that use the microphone (e.g. phone, voice recording, etc...). My question is - Is there a way to share the microphone stream in Android? Maybe by using the NDK? If not, is it possible to receive an indication (e.g. a BroadcastIntent) that another app is requiring the microphone? Simple Answer would be "NO" , This is just because Audio Recording Method is synchronized. So Two or more resources can not attempt it simantenously.

I want to share just simple text using UIActivityViewController I am using swift, with xcode 6.3 The code is very simple, work great for photos, but not just text, I don't want to include any web URL with the objectsToShare, just clean text Here is the code: var objectsToShare: ["some text to share"]! let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil) //handler for completed task activityVC.completionHandler = {(activityType, completed:Bool) in if !completed { println("cancelled") return } reportCompleted() //report to server it's done. } /

I am using this following block which is mentioned in Facebook Developer . But when my App callbacks from Browser then it is always returning Cancelled result. FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init]; [login logInWithReadPermissions:@[@"email"] handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) { if (error) { // Process error } else if (result.isCancelled) { // Handle cancellations } else { // If you ask for multiple permissions at once, you // should check if specific permissions missing if ([result.grantedPermissions containsObject:@"email"]) { // Do work } }