BaseFragmentActivity.java

package im.actor.sdk.controllers.activity;

import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBar;
import android.view.MenuItem;
import android.view.ViewGroup;
import android.widget.FrameLayout;

import im.actor.sdk.R;

public class BaseFragmentActivity extends BaseActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Configure ActionBar
        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setElevation(0);
            actionBar.setDisplayShowHomeEnabled(false);
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setDisplayShowTitleEnabled(true);
            actionBar.setDisplayShowCustomEnabled(false);

            if (STYLE.getToolBarColor() != 0) {
                actionBar.setBackgroundDrawable(new ColorDrawable(STYLE.getToolBarColor()));
            }
        }

        // Setting basic content
        FrameLayout rootLayout = new FrameLayout(this);
        rootLayout.setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));
        rootLayout.setBackgroundColor(STYLE.getMainBackgroundColor());
        rootLayout.setId(R.id.content_frame);
        setContentView(rootLayout);

        // Setting Background Color
        getWindow().setBackgroundDrawable(new ColorDrawable(STYLE.getMainBackgroundColor()));
    }

    public void showFragment(Fragment fragment, boolean addToBackStack) {
        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
        transaction.replace(R.id.content_frame, fragment);
        if (addToBackStack) {
            transaction.addToBackStack(null);
        }
        transaction.commit();
    }

    public void showNextFragment(Fragment fragment, boolean addToBackStack) {
        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
        transaction.replace(R.id.content_frame, fragment);
        if (addToBackStack) {
            transaction.addToBackStack(null);
        }
        transaction.commit();
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                finish();
                return true;
        }
        return false;
    }
}