How to registerReceiver in Fragment

Question

I show Bluetooth devices in a

ListView

. I tried it in an

Activity

before and it worked, but now I have to include this

ListView

in a

Fragment

It´s clear that one or two things don´t belong here, like the

registerReceiver

,

unregisterReceiver

and

RESULT_CANCELED

.

protected void onResume() {

    registerReceiver(receiver, filter);

     filter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_STARTED);

    registerReceiver(receiver, filter);

     filter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);

    registerReceiver(receiver, filter);

     filter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);

    registerReceiver(receiver, filter);

}



@Override

protected void onPause() {

    // TODO Auto-generated method stub

    super.onPause();

    unregisterReceiver(receiver);





}



    @Override

    public void onActivityResult(int requestCode, int resultCode, Intent data) {

        // TODO Auto-generated method stub

        super.onActivityResult(requestCode, resultCode, data);

        if(resultCode == RESULT_CANCELED){

            Toast.makeText(getActivity()     , "El Bluetooth debe estar activado para continuar", Toast.LENGTH_SHORT).show();

            getActivity().finish();

        }

    }

The lines that start with

registerReceiver

,

unegisterReceiver

and

if(resultCode==RESULT_CANCELED){

are giving me problems.

As an aditional fact, I have tried to to change it to an Activity instead of a Fragment, but my Main class have an error with that because I am working with Fragments.

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Answer 1

All these methods and variables belong to Activity class. So consider calling them with context of parent Activity of Fragment.

You may call required methods as:

 getActivity().registerReceiver(receiver, filter);

and

 getActivity().unregisterReceiver(receiver);

if(resultCode==RESULT_CANCELED){

can be replaced with

if(resultCode == Activity.RESULT_CANCELED){

Hope this solve your problem.

How to registerReceiver in Fragment

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