android - share video on whatsapp from my app -

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i want share video ,i have link of , downloaded in app when user want share video,
video not shared on whatsapp dont how ,here code
tried not worked. 

 intent videoshare = new intent(intent.action_send);     videoshare.settype("*/*");       videoshare.putextra(intent.extra_stream, uri.parse(environment.directory_downloads+"/"+title));          videoshare.setpackage("com.whatsapp");         startactivity(intent.createchooser(videoshare, "share video"));  

public void sharevideo(string pkgname, string appname) {   string path = null;   try {     path = mediastore.images.media.insertimage(getcontentresolver(),     arrimagepath.get(slidepager.getcurrentitem()), "title", null);   } catch (filenotfoundexception e1) {     e1.printstacktrace();   }   uri uri = uri.parse(path);   intent share = new intent(intent.action_send);   share.setpackage(pkgname);   share.putextra(intent.extra_stream, uri);   share.settype("video/*");   share.addflags(intent.flag_grant_read_uri_permission);   startactivity(intent.createchooser(share, "share image file"); }

sharevideo("com.whatsapp", "whatsapp");





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