HomeActivity.java

package com.florianmski.tracktoid.ui.activities;

import android.app.ActionBar;
import android.app.Activity;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;

import com.florianmski.tracktoid.R;
import com.florianmski.tracktoid.services.sync.SyncAdapter;
import com.florianmski.tracktoid.ui.fragments.DrawerTraktFragment;

public class HomeActivity extends TranslucentActivity
{

    private DrawerLayout drawerLayout;
    private ActionBarDrawerToggle drawerToggle;

    private CharSequence drawerTitle = "Menu";
    private CharSequence title;

    @Override
    protected int getContentViewId()
    {
        return R.layout.activity_home;
    }

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

        // set the drawer fragment
        if(savedInstanceState == null)
        {
            getSupportFragmentManager()
                    .beginTransaction()
                    .replace(R.id.fragment_drawer, DrawerTraktFragment.newInstance())
                    .commit();
        }

        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

        // set a custom shadow that overlays the main content when the drawer opens
        drawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

        // enable ActionBar home button to behave as action to toggle nav drawer
        getSupportActionBar().setIcon(null);
        getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_TITLE
                | ActionBar.DISPLAY_SHOW_HOME
                | ActionBar.DISPLAY_HOME_AS_UP);

        // ActionBarDrawerToggle ties together the the proper interactions
        // between the sliding drawer and the action bar app icon
        drawerToggle = new ActionBarDrawerToggle(
                this,
                drawerLayout,
                (android.support.v7.widget.Toolbar) findViewById(R.id.toolbar),
                R.string.drawer_open,
                R.string.drawer_close
        ) {
            public void onDrawerClosed(View view)
            {
                invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
            }

            public void onDrawerOpened(View drawerView)
            {
                invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
            }
        };
        drawerLayout.setDrawerListener(drawerToggle);

        // trigger a sync
        SyncAdapter.requestImmediateSync();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onPrepareOptionsMenu(Menu menu)
    {
        // If the nav drawer is open, hide action items related to the content view
        if(drawerLayout != null)
        {
            boolean drawerOpen = drawerLayout.isDrawerOpen(Gravity.START);
            for(int i = 0; i < menu.size(); i++)
                menu.getItem(i).setVisible(!drawerOpen);
        }
        return super.onPrepareOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        // The action bar home/up action should open or close the drawer.
        // ActionBarDrawerToggle will take care of this.
        if (drawerToggle.onOptionsItemSelected(item))
        {
            return true;
        }
        // Handle action buttons
        switch(item.getItemId())
        {
            default:
                return super.onOptionsItemSelected(item);
        }
    }

    @Override
    public void setTitle(CharSequence title)
    {
        this.title = title;
        getSupportActionBar().setTitle(this.title);
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState)
    {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        drawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig)
    {
        super.onConfigurationChanged(newConfig);
        // Pass any configuration change to the drawer toggls
        drawerToggle.onConfigurationChanged(newConfig);
    }

    public static void launch(Activity a)
    {
        launchActivity(a, HomeActivity.class);
    }
}