Can't use Android BT API methods

Question

I'm developing an android app that needs a BT connection. After reading the Android Developers page, the given method such us isEnabled() doesn't work. The error is cannot resolve symbol isEnabled. The imported library is android.bluetooth.BluetoothAdapter. In the manifest file, following the instructions of the Android page, I also have inserted the permission to Bluetooth, BT admin and fine location. The code:

public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); if (bluetoothAdapter == null) { Log.i("Fallo","Dispositivo sin bluetooth"); } if (!bluetoothAdapter.isEnabled()) { Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT); } }

Gredow · Accepted Answer · 2019-10-17 18:28:15Z

1

You are creating your BluetoothAdapter object outside the onCreate method. Put everything inside the onCreate curly brackets.

answered Oct 17, 2019 at 18:28

Gredow

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2 Comments

Juan CA Over a year ago

still one error in startActivityForResult(enableIntent, REQUEST_ENABLE_BT show same error in REQUEST_ENABLE_BT

Gredow Over a year ago

Check this out: stackoverflow.com/questions/8188277/… This is not related with the initial question,though.

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