unit Androidapi.JNI.BluetoothAdapter;

// (c) RedTitan Technology

// JNI BLUETOOTH import demo

// Note - REQUIRES - PROJECT OPTIONS - USES PERMISSIONS - BLUETOOTH

interface

uses

  Androidapi.JNIBridge,

  Androidapi.JNI.JavaTypes, Classes;

type

  /////////////////////////// BluetoothDevice //////////////////////////////////

  JBluetoothDevice = interface;

  JBluetoothDeviceClass = interface(JObjectClass)

  ['{FB8F9E83-CF98-4737-B7B0-64EFB07EBE2A}']

  end;

  [JavaSignature('android/bluetooth/BluetoothDevice')]

  JBluetoothDevice = interface(JObject)

  ['{F2560E3D-D26E-4DD8-B384-43070B02FF04}']

    function getName:JString; cdecl;

    function getAddress:JString; cdecl;

  end;

  TJBluetoothDevice = class(TJavaGenericImport<JBluetoothDeviceClass, JBluetoothDevice>) end;

  /////////////////////////// BluetoothAdapter /////////////////////////////////

  JBluetoothAdapter = interface;

  JBluetoothAdapterClass = interface(JObjectClass)

  ['{05CE5465-2953-4CC3-9D9B-01D71E90F412}']

    function getDefaultAdapter: JBluetoothAdapter; cdecl;

  end;

  [JavaSignature('android/bluetooth/BluetoothAdapter')]

  JBluetoothAdapter = interface(JObject)

  ['{D5C8CAD6-E717-4B95-89F1-A6FD0861B7DB}']

    function isEnabled:Boolean; cdecl;

    function getName:JString; cdecl;

    function cancelDiscovery:Boolean;

    function checkBluetoothAddress(Address:JString):Boolean;  cdecl;

    function disable:Boolean;  cdecl;

    function enable:Boolean;  cdecl;

    function getAddress:JString;  cdecl;

    procedure closeProfileProxy(profile:Integer;BluetoothProfile:Jobject); cdecl;

    function getBondedDevices:JSet; cdecl;

  end;

  TJBluetoothAdapter = class(TJavaGenericImport<JBluetoothAdapterClass, JBluetoothAdapter>) end;

// get local Bluetooth device name and check if it is enabled

function checkBluetooth:string;

// List bonded devices

function getBonded:TStringList;

implementation

uses

  FMX.Helpers.Android;

function checkBluetooth:string;

var

  x:JBluetoothAdapter;

  s:String;

  addr:string;

begin

  x:=TJBluetoothAdapter.JavaClass.getDefaultAdapter;

  s:=jstringtostring(x.getName);

  if x.isEnabled then result:=s+'(enabled) '+jstringtostring(x.getAddress)

    else result:=s+'(disabled)';

end;

function getBonded:TStringList;

var

  x:JBluetoothAdapter;

  externalDevices:JSet;

  bonded:Tjavaobjectarray<Jobject>;

  it:Jiterator;

  o:JBluetoothDevice;

begin

  result:=TStringlist.Create;

  x:=TJBluetoothAdapter.JavaClass.getDefaultAdapter;

  externalDevices:=x.getBondedDevices;

  it:=externalDevices.iterator;

  while it.hasNext do

  begin

    o:=TJBluetoothDevice.Wrap((it.next as ILocalObject).GetObjectID);

    result.Add(jstringtostring(o.getName)+','+jstringtostring(o.getAddress))

  end;

end;

end.

procedure TForm1.Button1Click(Sender: TObject);

var

  x:JBluetoothAdapter;

  s:String;

  addr:string;

begin

  x:=TJBluetoothAdapter.JavaClass.getDefaultAdapter;

  s:=jstringtostring(x.getName);

  if x.isEnabled then showmessage(s+'(enabled) '+jstringtostring(x.getAddress))

    else showmessage('(disabled)');

end;