Broadcast receiver for Phone State changed not working

Question

i have created a broadcast receiver for Phone state change. but the broadcast is not working. i have been trying from couple of hours and tried 2,3 solutions but still its n

Answer 1

1. First, define permission in the manifest

2. inside the application tag register the receiver

3. Ask the permission the startup Activity/Runtime Permission Usually in the MainActivity

   @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
   
          checkAndRequestPermissions();
   
         }
       private  boolean checkAndRequestPermissions() {
    int readPhoneState = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE);
    int read_call_log = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CALL_LOG);
   
    List listPermissionsNeeded = new ArrayList<>();
   
    if (readPhoneState != PackageManager.PERMISSION_GRANTED) {
        listPermissionsNeeded.add(Manifest.permission.READ_PHONE_STATE);
    }
   
    if (read_call_log != PackageManager.PERMISSION_GRANTED) {
        listPermissionsNeeded.add(Manifest.permission.READ_CALL_LOG);
    }
   
    if (read_call_log != PackageManager.PERMISSION_GRANTED) {
        listPermissionsNeeded.add(Manifest.permission.PROCESS_OUTGOING_CALLS);
    }
   
    if (read_call_log != PackageManager.PERMISSION_GRANTED) {
        listPermissionsNeeded.add(Manifest.permission.INTERNET);
    }
   
    if (!listPermissionsNeeded.isEmpty()) {
        ActivityCompat.requestPermissions(this,
                (String[]) listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]),
                REQUEST_ID_MULTIPLE_PERMISSIONS);
   
        return false;
    }
    return true;
   }
   

4. inside the PhoneCallReciver class

    public class CallReceiver extends BroadcastReceiver{
   
   
    @Override
        public void onReceive(Context context, Intent intent) {
   
            try {
   
                runfirstTime(context,intent);
   
            } catch (Exception ex) {
                try {
   
                }
                catch (Exception e)
                {
   
                }
            }
        }
   
   
    private void runfirstTime(Context context, Intent intent) {
   
        TelephonyManager telephony = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
        MyPhoneStateListener customPhoneListener = new MyPhoneStateListener();
   
        telephony.listen(customPhoneListener, PhoneStateListener.LISTEN_CALL_STATE);
   
        Bundle bundle = intent.getExtras();
        String phone_number = bundle.getString("incoming_number");
   
        String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
        int state = 0;
   
        if(stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)){
            state = TelephonyManager.CALL_STATE_IDLE;
        }
        else if(stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){
            state = TelephonyManager.CALL_STATE_OFFHOOK;
        }
        else if(stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)){
            state = TelephonyManager.CALL_STATE_RINGING;
        }
   
        if (phone_number == null || "".equals(phone_number)) {
            return;
        }
        customPhoneListener.onCallStateChanged(context, state, phone_number);
       // Here customPhoneListener is a object of the  use context,state,phone_number to get the MyCustomPhonestatelistener class Which extends PhoneStateListener class.
   
    }
   }