Capture and share image in IOS

Hi Everyone,

I have successfully done screen capture and share functionality in android by calling android intent to share screenshot. But stuck in IOS, All I want is, after capturing screen user can share to social account. e.g. when you press and hold on image in gallery , you get option to choose your account to share.

Note : I know how to capture screenshot, just need know how to call IOS intent to share it.

Thanks,