LocalBroadcastManager for communication between activities is bad, m'kay!

app_build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "22.0.1"

    defaultConfig {
        applicationId "pl.selvin.android.localbroadcastreceivertest"
        minSdkVersion 4
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
        }
    }
}

dependencies {
    compile 'com.android.support:support-v4:22.2.1'
}

app_src_main_AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="pl.selvin.android.localbroadcastreceivertest">
    <application android:allowBackup="true" android:label="localbroadcastreceivertest" >
    <activity android:name=".Activities$ReceiverActivity" android:label="!test">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
        <activity android:name=".Activities$SenderActivity"/>
    </application>
</manifest>

app_src_main_java_pl_selvin_android_localbroadcastreceivertest_Activities.java

package pl.selvin.android.localbroadcastreceivertest;

import android.app.Activity;
import android.app.ListActivity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;

public class Activities {
    public static final String EVENT = "custom-event-name";
    public static final String MESSAGE = "message";
    public static class ReceiverActivity extends ListActivity {
        final static String TAG = SenderActivity.class.getName();
        public ArrayAdapter<String> adapter;

        private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                final String message = intent.getStringExtra(MESSAGE);
                Log.d(TAG, "Got message: " + message);
                if(adapter!=null)
                    adapter.add(message);
            }
        };
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, new String[] { "Item1", "Item2", "Item3", "Item4", "Item5"});
            setListAdapter(adapter);
        }

        @Override
        protected void onListItemClick(ListView l, View v, int position, long id) {
            final Intent intent = new Intent(this, SenderActivity.class);
            startActivity(intent);
        }

        @Override
        protected void onResume() {
            super.onResume();
            LocalBroadcastManager.getInstance(this).registerReceiver(mMessageReceiver,
                    new IntentFilter(EVENT));
        }

        @Override
        protected void onPause() {
            //without this we are in deep shit
            //with this we will not receive the broadcast
            //LocalBroadcastManager.getInstance(this).unregisterReceiver(mMessageReceiver);
            super.onPause();
        }

        @Override
        protected void onDestroy() {
            LocalBroadcastManager.getInstance(this).unregisterReceiver(mMessageReceiver);
            super.onDestroy();
        }
    }

    public static class SenderActivity extends Activity {
        final static String TAG = SenderActivity.class.getName();
        int counter = 6;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            final Button but = new Button(this);
            but.setText("Click me!");
            but.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Log.d(TAG, "Broadcasting message");
                    Intent intent = new Intent(EVENT);
                    intent.putExtra(MESSAGE, "Item" + counter);
                    LocalBroadcastManager.getInstance(SenderActivity.this).sendBroadcast(intent);
                    counter ++;
                }
            });
            setContentView(but);
        }
    }
}