General Idea about unified functional "URL" for bitshares mobile client

[pluswave]

Hi,
    Is there any general "URL Schema" defined for BitShares mobile client ? 
    In my opinion, general means "self described", so the mobile client can do 'smart things' by scan a qrcode based on a real "URL".

    for example, the following types are useful:
      1  an account address
      2. a private key
      3. a payment request = an account address + asset + amount

 Any ideas ?