How to get the bluetooth devices as a list?

Question

I am trying to get my bonded bluetooth devices but I can get it as a long string instead of list.

This is my code:

BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices(); ArrayList<String> listview =  new ArrayList<String>(Arrays.asList(pairedDevices.toString())); setListAdapter(new ArrayAdapter<String>(this, R.layout.list, listview)); 

I am getting something like this: [00:23:7F:1c, f0:09:f1:b4:b0]. And its all in one line. How can I change it to be in a list and not all in one line?

Also, how can I get the friendly names of the devices and not these numbers?

Thanks!!!

Answer 1

You should change your code as below:

BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();  List<String> s = new ArrayList<String>(); for(BluetoothDevice bt : pairedDevices)    s.add(bt.getName());  setListAdapter(new ArrayAdapter<String>(this, R.layout.list, s)); 

Answer 2

Find list of Nearby Bluetooth Devices:

Find Screenshot for the same.

MainActivity.java:

public class MainActivity extends ActionBarActivity {      private ListView listView;     private ArrayList<String> mDeviceList = new ArrayList<String>();     private BluetoothAdapter mBluetoothAdapter;      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          listView = (ListView) findViewById(R.id.listView);          mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();         mBluetoothAdapter.startDiscovery();          IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);         registerReceiver(mReceiver, filter);      }       @Override     protected void onDestroy() {         unregisterReceiver(mReceiver);         super.onDestroy();     }      private final BroadcastReceiver mReceiver = new BroadcastReceiver() {         public void onReceive(Context context, Intent intent) {             String action = intent.getAction();             if (BluetoothDevice.ACTION_FOUND.equals(action)) {                 BluetoothDevice device = intent                         .getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);                 mDeviceList.add(device.getName() + "\n" + device.getAddress());                 Log.i("BT", device.getName() + "\n" + device.getAddress());                 listView.setAdapter(new ArrayAdapter<String>(context,                         android.R.layout.simple_list_item_1, mDeviceList));             }         }     }; 

activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     tools:context="com.example.bluetoothdemo.MainActivity" >      <ListView         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:id="@+id/listView"/>  </RelativeLayout> 

Manifest file:

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.example.bluetoothdemo"     android:versionCode="1"     android:versionName="1.0" >      <uses-sdk         android:minSdkVersion="8"         android:targetSdkVersion="21" />      <uses-permission android:name="android.permission.BLUETOOTH" />     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />      <application         android:allowBackup="true"         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/AppTheme" >         <activity             android:name=".MainActivity"             android:label="@string/app_name" >             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                  <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>     </application>  </manifest> 

Note:

Please make sure that you ask Location permission to your user and turn GPS On.

Reason: From Android 6.0 you need Location permission for Bluetooth Discovery.

More reference:

1. https://developer.android.com/guide/topics/connectivity/bluetooth
2. https://getlief.zendesk.com/hc/en-us/articles/360007600233-Why-does-Android-require-Location-Permissions-for-Bluetooth-

Done