BaseActivity.java

package com.pedrocarrillo.expensetracker.ui;

import android.content.Intent;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;

import com.pedrocarrillo.expensetracker.R;
import com.pedrocarrillo.expensetracker.interfaces.IFragmentListener;

/**
 * Created by Pedro on 15/9/2015.
 */
public class BaseActivity extends AppCompatActivity implements IFragmentListener {

    @Override
    public void replaceFragment(Fragment fragment, boolean addToBackStack) {
        replaceFragment(R.id.main_content, fragment, addToBackStack);
    }

    @Override
    public void replaceFragment(int containerId, Fragment fragment, boolean addToBackStack) {
        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
        String tag = fragment.getClass().getSimpleName();
        transaction.replace(containerId, fragment, tag);
        if(addToBackStack) transaction.addToBackStack(null);
        transaction.commit();
    }

    @Override
    public void setResultWithData(int status, Intent intent) {
        setResult(status, intent);
        closeActivity();
    }

    @Override
    public void closeActivity() {
        finish();
    }

    @Override
    public void setToolbar(Toolbar toolbar) {
        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
        toolbar.setNavigationIcon(getResources().getDrawable(R.drawable.abc_ic_ab_back_mtrl_am_alpha));
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onBackPressed();
            }
        });
    }

}