This plugin provides the following actions: 

• SocialSharing_ShareMessage: action to share a message with other applications installed on the device.
  • Inputs: 
    • Message
    • Subject (optional)
• SocialSharing_ShareFile: action to share a file with other applications installed on the device.
  • Inputs:
    • Filename
    • FileMediaType
    • FileBase64
    • Message (optional)

More info: https://github.com/EddyVerbruggen/SocialSharing-PhoneGap-Plugin