Android Get Bluetooth status

The author has recently been doing Bluetooth status to get things, summed up a set of Bluetooth status code, share the following:

Private Bluetoothadapter BA; Bluetooth Adapter BA = Bluetoothadapter.getdefaultadapter ();     Whether the Bluetooth adapter is present, that is, whether an error occurred if (BA = = null) {Isbluecon =-1; Error}else if (ba.isenabled ()) {int A2DP = ba.getprofileconnectionstate (BLUETOOTHPROFILE.A2DP);//can manipulate Bluetooth devices, such as the Bluetooth headset with play suspend function int headset = ba.getprofileconnectionstate (bluetoothprofile.headset);//bluetooth headset, support voice input output int health = BA. Getprofileconnectionstate (bluetoothprofile.health);//Bluetooth wearable device//check whether Bluetooth is connected to one of three devices to determine whether it is connected or open and not connected to the status int   flag =-1;   if (A2DP = = bluetoothprofile.state_connected) {flag = A2DP;   } else if (headset = = bluetoothprofile.state_connected) {flag = headset;   } else if (health = = bluetoothprofile.state_connected) {flag = health; }//Describes an if (flag = = 1) connection on three devices {Isbluecon = 1;//discontinued} else if (flag = =-1) {Networkinfo NetI      NFO = Cm.getnetworkinfo (Connectivitymanager.type_bluetooth);  if (NetInfo = = null) {Isbluecon = 1;//discontinued}    else {state BLT = netinfo.getstate ();         Isbluecon = Getdevstate (BLT); Inside the system, return the connection or not}}}else {Isbluecon = 2;//shut off}

public static enum state {        CONNECTED,        connecting,        disconnected,        disconnecting,        SUSPENDED,        UNKNOWN;        Private state () {        }    }

Android Get Bluetooth status