Android Open Source - Kodesearch Main Activity

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Back to project page Kodesearch.

License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.kodesearch;
/*from www  .j ava2  s.c o m*/
import java.util.ArrayList;

import android.annotation.SuppressLint;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

import com.kodesearch.external.NavDrawerItem;
import com.kodesearch.external.NavDrawerListAdapter;

@SuppressLint("NewApi")
public class MainActivity extends ActionBarActivity {
  private DrawerLayout mDrawerLayout;
  private ListView mDrawerList;
  private ActionBarDrawerToggle mDrawerToggle;

  // nav drawer title
  private CharSequence mDrawerTitle;

  // used to store app title
  private CharSequence mTitle;

  // slide menu items
  private String[] navMenuTitles;
  private TypedArray navMenuIcons;

  private ArrayList<NavDrawerItem> navDrawerItems;
  private NavDrawerListAdapter adapter;

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

    mTitle = mDrawerTitle = getTitle();

    // load slide menu items
    navMenuTitles = getResources().getStringArray(R.array.actions_titles);

    // nav drawer icons from resources
    navMenuIcons = getResources()
        .obtainTypedArray(R.array.nav_drawer_icons);

    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    mDrawerList = (ListView) findViewById(R.id.list_slidermenu);

    navDrawerItems = new ArrayList<NavDrawerItem>();

    // adding nav drawer items to array
    // Home
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons
        .getResourceId(0, -1)));
    // Find People
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons
        .getResourceId(1, -1)));
    // Recycle the typed array
    navMenuIcons.recycle();

    mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

    // setting the nav drawer list adapter
    adapter = new NavDrawerListAdapter(getApplicationContext(),
        navDrawerItems);
    mDrawerList.setAdapter(adapter);

    // enabling action bar app icon and behaving it as toggle button
    getActionBar().setDisplayHomeAsUpEnabled(true);
    getActionBar().setHomeButtonEnabled(true);

    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
        R.drawable.ic_drawer, // nav menu toggle icon
        R.string.app_name, // nav drawer open - description for
                  // accessibility
        R.string.app_name // nav drawer close - description for
                  // accessibility
    ) {
      public void onDrawerClosed(View view) {
        getActionBar().setTitle(mTitle);
        // calling onPrepareOptionsMenu() to show action bar icons
        invalidateOptionsMenu();
      }

      public void onDrawerOpened(View drawerView) {
        getSupportActionBar().setTitle(mDrawerTitle);
        // calling onPrepareOptionsMenu() to hide action bar icons
        invalidateOptionsMenu();
      }
    };
    mDrawerLayout.setDrawerListener(mDrawerToggle);

    if (savedInstanceState == null) {
      // on first time display view for first nav item
      displayView(0);
    }
  }

  /**
   * Slide menu item click listener
   * */
  private class SlideMenuClickListener implements
      ListView.OnItemClickListener {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,
        long id) {
      // display view for selected nav drawer item
      displayView(position);
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // toggle nav drawer on selecting action bar app icon/title
    if (mDrawerToggle.onOptionsItemSelected(item)) {
      return true;
    }
    // Handle action bar actions click
    switch (item.getItemId()) {
    case R.id.action_settings:
      return true;
    default:
      return super.onOptionsItemSelected(item);
    }
  }

  /* *
   * Called when invalidateOptionsMenu() is triggered
   */
  @Override
  public boolean onPrepareOptionsMenu(Menu menu) {
    // if nav drawer is opened, hide the action items
    boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
    menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
    return super.onPrepareOptionsMenu(menu);
  }

  /**
   * Diplaying fragment view for selected nav drawer list item
   * */
  private void displayView(int position) {
    // update the main content by replacing fragments
    Fragment fragment = null;
    switch (position) {
    case 0:
      fragment = new NewsFragment();
      break;
    case 1:
      fragment = new SearchFragment();
      break;

    default:
      break;
    }

    if (fragment != null) {
      FragmentManager fragmentManager = getSupportFragmentManager();
      fragmentManager.beginTransaction()
          .replace(R.id.frame_container, fragment).commit();

      // update selected item and title, then close the drawer
      mDrawerList.setItemChecked(position, true);
      mDrawerList.setSelection(position);
      setTitle(navMenuTitles[position]);
      mDrawerLayout.closeDrawer(mDrawerList);
    } else {
      // error in creating fragment
      Log.e("MainActivity", "Error in creating fragment");
    }
  }

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

  /**
   * When using the ActionBarDrawerToggle, you must call it during
   * onPostCreate() and onConfigurationChanged()...
   */

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

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

}

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