Android Open Source - Implementing-ActionBarSherlock-Side-Menu-Navigation-Drawer-in-Android Main Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.androidbegin.sidemenututorial;
//w  w  w. j a  va 2s.  c o m
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuItem;

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

public class MainActivity extends SherlockFragmentActivity {

  // Declare Variable
  DrawerLayout mDrawerLayout;
  ListView mDrawerList;
  ActionBarDrawerToggle mDrawerToggle;
  MenuListAdapter mMenuAdapter;
  String[] title;
  String[] subtitle;
  int[] icon;
  Fragment fragment1 = new Fragment1();
  Fragment fragment2 = new Fragment2();
  Fragment fragment3 = new Fragment3();

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.drawer_main);

    // Generate title
    title = new String[] { "Title Fragment 1", "Title Fragment 2",
        "Title Fragment 3" };

    // Generate subtitle
    subtitle = new String[] { "Subtitle Fragment 1", "Subtitle Fragment 2",
        "Subtitle Fragment 3" };

    // Generate icon
    icon = new int[] { R.drawable.action_about, R.drawable.action_settings,
        R.drawable.collections_cloud };

    // Locate DrawerLayout in drawer_main.xml
    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

    // Locate ListView in drawer_main.xml
    mDrawerList = (ListView) findViewById(R.id.left_drawer);

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

    // Pass results to MenuListAdapter Class
    mMenuAdapter = new MenuListAdapter(this, title, subtitle, icon);

    // Set the MenuListAdapter to the ListView
    mDrawerList.setAdapter(mMenuAdapter);

    // Capture button clicks on side menu
    mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

    // Enable ActionBar app icon to behave as action to toggle nav drawer
    getSupportActionBar().setHomeButtonEnabled(true);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    // ActionBarDrawerToggle ties together the the proper interactions
    // between the sliding drawer and the action bar app icon
    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
        R.drawable.ic_drawer, R.string.drawer_open,
        R.string.drawer_close) {

      public void onDrawerClosed(View view) {
        // TODO Auto-generated method stub
        super.onDrawerClosed(view);
      }

      public void onDrawerOpened(View drawerView) {
        // TODO Auto-generated method stub
        super.onDrawerOpened(drawerView);
      }
    };

    mDrawerLayout.setDrawerListener(mDrawerToggle);

    if (savedInstanceState == null) {
      selectItem(0);
    }
  }

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

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {

    if (item.getItemId() == android.R.id.home) {

      if (mDrawerLayout.isDrawerOpen(mDrawerList)) {
        mDrawerLayout.closeDrawer(mDrawerList);
      } else {
        mDrawerLayout.openDrawer(mDrawerList);
      }
    }

    return super.onOptionsItemSelected(item);
  }

  // The click listener for ListView in the navigation drawer
  private class DrawerItemClickListener implements
      ListView.OnItemClickListener {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,
        long id) {
      selectItem(position);
    }
  }

  private void selectItem(int position) {

    FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
    // Locate Position
    switch (position) {
    case 0:
      ft.replace(R.id.content_frame, fragment1);
      break;
    case 1:
      ft.replace(R.id.content_frame, fragment2);
      break;
    case 2:
      ft.replace(R.id.content_frame, fragment3);
      break;
    }
    ft.commit();
    mDrawerList.setItemChecked(position, true);
    // Close drawer
    mDrawerLayout.closeDrawer(mDrawerList);
  }

  @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 toggles
    mDrawerToggle.onConfigurationChanged(newConfig);
  }
}

Java Source Code List

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