package org.olomono.messenger.ui.chat; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import org.olomono.messenger.R; public class ChatActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_chat); if (savedInstanceState == null) { getSupportFragmentManager().beginTransaction() .replace(R.id.container, ChatInputFragment.newInstance()) .commitNow(); } } }