Base Activity providing ButterKnife binding, forcing layout Id register and abstracting showFragment call

BaseActivity.java

// include package path here

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;

import butterknife.ButterKnife;

public abstract class BaseActivity extends AppCompatActivity {

    // Abstract class used to get the activity Layout ID
    protected abstract int getActivityLayout();

    protected void configureActivity() {
    }

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

        ButterKnife.bind(this);

        configureActivity();
    }

    // Method used to show a fragment in a Container View inside the Activity
    protected void showFragment(int fragmentContainerId, BaseFragment fragment) {
        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
        transaction.replace(fragmentContainerId, fragment);
        transaction.addToBackStack(fragment.getClass().getName());
        transaction.commit();
    }
}

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