GenericActivity.java

package at.favre.app.dalitest.activity;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;

import at.favre.app.dalitest.R;
import at.favre.app.dalitest.fragment.LiveBlurFragment;
import at.favre.app.dalitest.fragment.SimpleAnimationFragment;
import at.favre.app.dalitest.fragment.SimpleBlurBrightnessFragment;
import at.favre.app.dalitest.fragment.SimpleBlurFragment;
import at.favre.app.dalitest.fragment.SimpleBlurPlaygroundFragment;
import at.favre.app.dalitest.fragment.ViewBlurFragment;


public class GenericActivity extends AppCompatActivity {
	public final static String FRAGMENT_ID = "FRAGMENT_ID";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, getById(getIntent().getIntExtra(FRAGMENT_ID,0)))
                    .commit();
        }
    }


	private Fragment getById(int id) {
		switch (id) {
			case 0:
				return new SimpleBlurFragment();
			case 1:
				return new LiveBlurFragment();
			case 2:
				return new SimpleAnimationFragment();
			case 3:
				return new ViewBlurFragment();
			case 4:
				return new SimpleBlurBrightnessFragment();
			case 5:
				return new SimpleBlurPlaygroundFragment();
			default:
				return null;
		}
	}

    public boolean onOptionsItemSelected(MenuItem menuItem) {
        if (menuItem.getItemId() == android.R.id.home) {
            onBackPressed();
        }
        return super.onOptionsItemSelected(menuItem);
    }

}