Listen incoming calls through BroadcastReceiver, without PhoneStateIntentReceiver or PhoneStateListener

Question

Is there any way to listen to incoming calls by extending BroadcastReceiver to listen to OS\'s broadcast,without using PhoneStateIntentReceiver or PhoneStateListener. Also pleas

Answer 1

Here is My demo for android unit test. You can refer to it.

public interface ICallVerify {
    void onOutgoing(Context context, Intent intent);
    void onCallStateChange(Context context, Intent intent);
}

protected void setUpCallVerify(final ICallVerify callVerify) {  //listen ingoing and outgoing
    final CountDownLatch latch = new CountDownLatch(1);
    BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)) { //state change
                Log.i(TAG, "outgoing call...");
                callVerify.onOutgoing(context, intent);
            } else if (intent.getAction().equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED)){ // state changed
                String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
                if (state.equals("RINGING")) {
                    state += " number:" + intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
                }
                Log.i(TAG, "call state changed.... " + state);
                callVerify.onCallStateChange(context, intent);
            }
        }
    };

    IntentFilter filter = new IntentFilter(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
    filter.addAction(Intent.ACTION_NEW_OUTGOING_CALL);
    ContextUtils.getTargetContext().registerReceiver(receiver, filter);

    try {
        latch.await(5, TimeUnit.MINUTES);
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}

Dont forget to add permissions