Android Open Source - Android-Navigation-Drawer-with-Tabs Main Activity

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License

The source code is released under:
Apache License
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Java Source Code

package com.example.navigationdrawertest;
/*  w  ww . j  a  va 2  s  .c o m*/
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.View;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends FragmentActivity {
  private DrawerLayout mDrawerLayout;
  private ListView mLeftDrawer;
  private ActionBarDrawerToggle mDrawerToggle;

  private CharSequence mDrawerTitle;
  private CharSequence mTitle;
  private String[] mFragmentTitles;

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

    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

    mTitle = mDrawerTitle = getTitle();
    mFragmentTitles = getResources().getStringArray(R.array.fragments);
    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer);
    mLeftDrawer = (ListView) findViewById(R.id.left_drawer);

    mLeftDrawer.setAdapter(new ArrayAdapter<String>(this,
        R.layout.drawer_list_item, mFragmentTitles));
    mLeftDrawer.setOnItemClickListener(new DrawerItemClickListener());

    getActionBar().setDisplayHomeAsUpEnabled(true);
    getActionBar().setHomeButtonEnabled(true);

    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
        R.drawable.ic_drawer, R.string.drawer_open,
        R.string.drawer_close) {
      @Override
      public void onDrawerClosed(View v) {
        getActionBar().setTitle(mTitle);
        supportInvalidateOptionsMenu();
      }

      @Override
      public void onDrawerOpened(View v) {
        getActionBar().setTitle(mDrawerTitle);
        supportInvalidateOptionsMenu();
      }
    };
    mDrawerLayout.setDrawerListener(mDrawerToggle);
    if (savedInstanceState == null) {
      selectItem(0);
    }

  }

  @Override
  protected void onResume() {
    super.onResume();
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
  }

  @Override
  protected void onStop() {
    super.onStop();
    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
  }

  @SuppressWarnings("unused")
  @Override
  public boolean onPrepareOptionsMenu(Menu menu) {
    boolean drawerOpen = mDrawerLayout.isDrawerOpen(mLeftDrawer);

    return super.onPrepareOptionsMenu(menu);
  }

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

  private class DrawerItemClickListener implements
      ListView.OnItemClickListener {
    @Override
    public void onItemClick(AdapterView<?> parent, View v, int position,
        long id) {
      selectItem(position);
    }
  }

  private void selectItem(int position) {
    Fragment newFragment = new FragmentMain();
    FragmentManager fm = getSupportFragmentManager();
    switch (position) {
    case 0:
      newFragment = new FragmentMain();
      break;
    case 1:
      newFragment = new FragmentMain2();
      break;
    }

    fm.beginTransaction().replace(R.id.content_frame, newFragment).commit();

    mLeftDrawer.setItemChecked(position, true);
    setTitle(mFragmentTitles[position]);
    mDrawerLayout.closeDrawer(mLeftDrawer);
  }

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

  @Override
  protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    mDrawerToggle.syncState();
  }

  @Override
  public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    mDrawerToggle.onConfigurationChanged(newConfig);

  }

}
Java Source Code List
