A UIViewController to present the dialog from.
@property (nonatomic, weak) UIViewController *fromViewController;
If not specified, the top most view controller will be automatically determined as best as possible.
The mode with which to display the dialog.
@property (nonatomic, assign) FBSDKShareDialogMode mode;
Defaults to FBSDKShareDialogModeAutomatic, which will automatically choose the best available mode.
Convenience method to show an FBSDKShareDialog with a fromViewController, content and a delegate.
A UIViewController to present the dialog from, if appropriate.
The content to be shared.
The receiver's delegate.