Android: How to pair bluetooth devices programmatically?

Question

Please any one help me with pairing my android phone with other discovered phone programmatically ?

I answered this question on this post: http://stackoverflow.com/a/22201805/1426021 — DragonT, Mar 05 '14 at 16:01

score 5 · Accepted Answer · edited Jul 24 '14 at 05:04

5

Found the solution using reflection, I am doing this now as follows and it is working for me:

//For Pairing
private void pairDevice(BluetoothDevice device) {
    try {
        Log.d("pairDevice()", "Start Pairing...");
        Method m = device.getClass().getMethod("createBond", (Class[]) null);
        m.invoke(device, (Object[]) null);
        Log.d("pairDevice()", "Pairing finished.");
    } catch (Exception e) {
        Log.e("pairDevice()", e.getMessage());
    }
}


//For UnPairing
   private void unpairDevice(BluetoothDevice device) {
    try {
        Log.d("unpairDevice()", "Start Un-Pairing...");
        Method m = device.getClass().getMethod("removeBond", (Class[]) null);
        m.invoke(device, (Object[]) null);
        Log.d("unpairDevice()", "Un-Pairing finished.");
    } catch (Exception e) {
        Log.e(TAG, e.getMessage());
    }
}

edited Jul 24 '14 at 05:04

Jonno_FTW

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answered Feb 14 '13 at 08:14

Shridutt Kothari

7,326
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2

You will have to find out, as i did this code a long time ago. – Shridutt Kothari Jun 19 '13 at 04:46
what is Method class ? – Jignesh Ansodariya Jul 23 '13 at 11:46
can u please help me for transfer file through bluetooth from one device to another.... – Denny Sharma Oct 23 '13 at 12:47
for file transfer see sample in android SDK. – Shridutt Kothari Oct 24 '13 at 15:57
1

I made a sample project using this solution to pair or unpair, find it here http://www.londatiga.net/it/programming/android/how-to-programmatically-pair-or-unpair-android-bluetooth-device/ – Lorensius W. L. T Feb 20 '14 at 15:52
1

I try your code but when I click on searched devices its toast incorrect pin. – ParikshitSinghTomar Jun 30 '15 at 12:05
as said the code uses reflection, actual code might have changed – Shridutt Kothari Jul 03 '15 at 10:06

score 4 · Answer 2 · answered Feb 12 '13 at 14:06

Can do it like:

public void pairDevice(BluetoothDevice device) {
        String ACTION_PAIRING_REQUEST = "android.bluetooth.device.action.PAIRING_REQUEST";
        Intent intent = new Intent(ACTION_PAIRING_REQUEST);
        String EXTRA_DEVICE = "android.bluetooth.device.extra.DEVICE";
        intent.putExtra(EXTRA_DEVICE, device);
        String EXTRA_PAIRING_VARIANT = "android.bluetooth.device.extra.PAIRING_VARIANT";
        int PAIRING_VARIANT_PIN = 0;
        intent.putExtra(EXTRA_PAIRING_VARIANT, PAIRING_VARIANT_PIN);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        getActivity().startActivityForResult(intent,0);


    }

It is not working, although it launches the pairing activity but further nothing happens after entering passkey. while the same pairing activity, if lauched from settings, it works further after entering passkey... please help... — Shridutt Kothari, Feb 12 '13 at 14:10

score 0 · Answer 3 · answered Feb 12 '13 at 14:42

0

Did you set your permissions in the Android Manifest file?

<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

answered Feb 12 '13 at 14:42

gomezfx

147
2
8

Because I've never done anything with Bluetooth, I'm not sure if I can help you further. But I did find this example with source code: [http://www.basic4ppc.com/forum/basic4android-getting-started-tutorials/14768-android-bluetooth-bluetoothadmin-tutorial.html](http://www.basic4ppc.com/forum/basic4android-getting-started-tutorials/14768-android-bluetooth-bluetoothadmin-tutorial.html) – gomezfx Feb 12 '13 at 17:55
have already seen this link. not helpful because it dont have anything to do with bluetooth pairing. – Shridutt Kothari Feb 12 '13 at 18:00

Android: How to pair bluetooth devices programmatically?

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