PasswordViewActivity.java

package de.devland.masterpassword.ui;

import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

import com.squareup.otto.Subscribe;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import de.devland.masterpassword.R;
import de.devland.masterpassword.model.Category;
import de.devland.masterpassword.ui.drawer.AddCategoryDrawerItem;
import de.devland.masterpassword.ui.drawer.AllCategoryDrawerItem;
import de.devland.masterpassword.ui.drawer.CategoryDrawerItem;
import de.devland.masterpassword.ui.drawer.DrawerItem;
import de.devland.masterpassword.ui.drawer.DrawerItemAdapter;
import de.devland.masterpassword.ui.drawer.ExportDrawerItem;
import de.devland.masterpassword.ui.drawer.ImportDrawerItem;
import de.devland.masterpassword.ui.drawer.LogoutDrawerItem;
import de.devland.masterpassword.ui.drawer.PreferencesDrawerItem;
import de.devland.masterpassword.util.event.CategoryChangeEvent;
import de.devland.masterpassword.util.event.ReloadDrawerEvent;


public class PasswordViewActivity extends LoginRequiringActivity implements
        AdapterView.OnItemClickListener {

    private DrawerLayout drawerLayout;
    private ActionBarDrawerToggle drawerToggle;
    private DrawerItemAdapter drawerItemAdapter;

    private ListView drawerList;
    private Fragment fragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_password_view);
        if (savedInstanceState == null) {
            fragment = new PasswordViewFragment();
            getSupportFragmentManager().beginTransaction()
                                       .add(R.id.container, fragment)
                                       .commit();
        } else {
            fragment = getSupportFragmentManager().getFragment(
                    savedInstanceState, "fragment");
        }
        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawerList = (ListView) findViewById(R.id.left_drawer);
        if (drawerLayout != null) {
            drawerToggle = new ActionBarDrawerToggle(
                    this,                  /* host Activity */
                    drawerLayout,         /* DrawerLayout object */
                    R.string.drawer_open,  /* "open drawer" description */
                    R.string.drawer_close  /* "close drawer" description */
            ) {

                /**
                 * Called when a drawer has settled in a completely closed state.
                 */
                public void onDrawerClosed(View view) {
                    super.onDrawerClosed(view);
                    //getActionBar().setTitle(mTitle);
                }

                /**
                 * Called when a drawer has settled in a completely open state.
                 */
                public void onDrawerOpened(View drawerView) {
                    super.onDrawerOpened(drawerView);
                    //getActionBar().setTitle(mDrawerTitle);
                }
            };

            // Set the drawer toggle as the DrawerListener
            drawerLayout.setDrawerListener(drawerToggle);
            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
            getSupportActionBar().setHomeButtonEnabled(true);
        }

        drawerList.setOnItemClickListener(this);

        getSupportActionBar().setTitle(R.string.title_passwords);
    }

    @Override
    protected void onResume() {
        super.onResume();
        initializeDrawerItems(null);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        getSupportFragmentManager().putFragment(outState, "fragment", fragment);
    }

    @Subscribe
    public void initializeDrawerItems(ReloadDrawerEvent event) {
        List<DrawerItem> drawerItems = new ArrayList<>();
        ImportDrawerItem importDrawerItem = new ImportDrawerItem(this, drawerLayout);
        ExportDrawerItem exportDrawerItem = new ExportDrawerItem(this, drawerLayout);
        List<Category> categories = defaultPrefs.categories();
        Collections.sort(categories);

        drawerItems.add(new AllCategoryDrawerItem(this));
        for (Category category : categories) {
            drawerItems.add(new CategoryDrawerItem(category));
        }
        if (!defaultPrefs.lockCategories()) {
            drawerItems.add(new AddCategoryDrawerItem(this));
        }
        drawerItems.add(importDrawerItem);
        drawerItems.add(exportDrawerItem);
        drawerItems.add(new PreferencesDrawerItem(drawerLayout));
        drawerItems.add(new LogoutDrawerItem(this));
        drawerItemAdapter = new DrawerItemAdapter(this, drawerItems);
        drawerList.setAdapter(drawerItemAdapter);
    }

    @Subscribe
    public void closeDrawerOnCategoryChange(CategoryChangeEvent event) {
        if (drawerLayout != null) {
            drawerLayout.closeDrawers();
        }
    }

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

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        if (drawerLayout != null) {
            drawerToggle.onConfigurationChanged(newConfig);
        }
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Pass the event to ActionBarDrawerToggle, if it returns
        // true, then it has handled the app icon touch event
        if (drawerLayout != null) {
            if (drawerToggle.onOptionsItemSelected(item)) {
                return true;
            }
        }

        // Handle your other action bar items...

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
        drawerItemAdapter.getItem(i).onClick(this);
    }

}