title: How Android app can initiate Bluetooth HFP and A2DP connection to Bluetooth Headset?
body: <p>In my understand, Android app supports only SPP connection not HFP and A2DP.</p>
  
  <p>However, I want to initiate HFP and A2DP connection in Android app just like selecting Bluetooth device in Bluetooth Settings menu. I'm not sure it is possible to use a intent including BluetothDevice object, so the intent receiver can initiate HFP and A2DP connection.</p>
  
  <p>If you have a idea, could you let me know that?  </p>