var
phone,message:string;
begin
phone:='62123456';
message:='I am the body.';
if jIntentManager1.IsPackageInstalled('com.whatsapp') then
begin
jIntentManager1.SetPackage('com.whatsapp');
jIntentManager1.SetAction(IaSEND);
jIntentManager1.SetMimeType('text/plain');
jIntentManager1.SetFlag(ifActivityNewTask);
jIntentManager1.PutExtraText(message);
//jIntentManager1.SetDataUri(self.ParseUri('https://api.whatsapp.com/send?phone='+ phone +'&text=' + self.UriEncode(message)));
//jIntentManager1.PutExtraString('Jid', phone +'@s.whatsapp.net');
jIntentManager1.StartActivity()
end