Android Open Source - AndroidAdvancedDemos Home Activity

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License

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

package com.krieger.training.androidadvanceddemos;
//from   w w  w.j a v  a2s.co  m
import java.util.ArrayList;

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.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;

import com.essentailab.training.androidadvanceddemos.R;
import com.krieger.training.androidadvanceddemos.adapter.SimpleListAdapter;
import com.krieger.training.androidadvanceddemos.entities.DrawerItem;
import com.krieger.training.androidadvanceddemos.entities.HeadedList;
import com.krieger.training.androidadvanceddemos.fragment.AsyncTaskFragment;
import com.krieger.training.androidadvanceddemos.fragment.GridViewFragment;
import com.krieger.training.androidadvanceddemos.fragment.ListFragment;
import com.krieger.training.androidadvanceddemos.fragment.NestedFragment;
import com.krieger.training.androidadvanceddemos.fragment.SimpleFragment;
import com.krieger.training.androidadvanceddemos.fragment.ViewPagerFragment;
import com.krieger.training.androidadvanceddemos.interfaces.ListHeaderInflationAction;
import com.krieger.training.androidadvanceddemos.interfaces.ListItemInflationAction;
import com.krieger.training.androidadvanceddemos.listener.ListOnItemClickListener;

public class HomeActivity extends ActionBarActivity {
  
  private final static int FRAG_TYPE_ABOUT = 0;
  private final static int FRAG_TYPE_SIMPLE = 1;
  private final static int FRAG_TYPE_GRID = 2;
  private final static int FRAG_TYPE_WEB = 3;
  private final static int FRAG_TYPE_NESTED = 4;
  private final static int FRAG_TYPE_VIEWPAGER = 5;
  private final static int FRAG_TYPE_ERROR = 6;
  
  private final static String BUNDLE_SAVED_FRAGTAG = "FRAGTAG";
  private final static String BUNDLE_SAVED_TITLE = "TITLE";

  private String[] mDrawerTitles;
  private DrawerLayout mDrawerLayout;
  private ListView mDrawerList;
  private String mTitle;
  private ActionBarDrawerToggle mDrawerToggle;
  private String currentFragTag;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_home);
    
    mDrawerTitles = getResources().getStringArray(R.array.act_home_drawer_array);
        mDrawerLayout = (DrawerLayout) findViewById(R.id.act_home_drawerlayout);
        mDrawerList = (ListView) findViewById(R.id.act_home_drawer);
        
        FragmentManager fm = getSupportFragmentManager();
        FragmentTransaction t = fm.beginTransaction();
        if (savedInstanceState!=null){
          mTitle = savedInstanceState.getString(BUNDLE_SAVED_TITLE);
          getSupportActionBar().setTitle(mTitle);
          currentFragTag = savedInstanceState.getString(BUNDLE_SAVED_FRAGTAG);
          
        }else{
          mTitle = (String) getTitle();
            currentFragTag = SimpleFragment.class.getName();
            t.add(R.id.act_home_container_root,
                SimpleFragment.newInstance("HELLO!"),
                currentFragTag);
        }
        t.commit();
        
        mDrawerToggle = new ActionBarDrawerToggle(
            this,
                mDrawerLayout,         
                R.drawable.ic_drawer,
                R.string.act_home_drawer_open,
                R.string.act_home_drawer_close){

            public void onDrawerClosed(View view) {
                getSupportActionBar().setTitle(mTitle);
            }

            public void onDrawerOpened(View drawerView) {
                getSupportActionBar().setTitle(mTitle);
            }
        };
        
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);
        
        int[] mDrawables = {
          R.drawable.ic_drawer_about,
          R.drawable.ic_drawer_list,
          R.drawable.ic_drawer_grid,
          R.drawable.ic_drawer_web,
          R.drawable.ic_drawer_nested,
          R.drawable.ic_drawer_gallery,
          R.drawable.ic_drawer_error
        };
        
        ArrayList<DrawerItem> data = new ArrayList<DrawerItem>();
        for(int i=0; i<mDrawerTitles.length; i++)
          data.add(new DrawerItem(getResources().getDrawable(mDrawables[i]), mDrawerTitles[i]));
        
    mDrawerList.setAdapter(new SimpleListAdapter(data,
            getLayoutInflater(), R.layout.row_drawer, R.id.row_drawer_img, R.id.row_drawer_txt));
        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
  }
  
  @Override
  public void onSaveInstanceState(Bundle savedInstanceState) {
      super.onSaveInstanceState(savedInstanceState);
      savedInstanceState.putString(BUNDLE_SAVED_FRAGTAG, currentFragTag);
      savedInstanceState.putString(BUNDLE_SAVED_TITLE, mTitle);
  }
  
  @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        mDrawerToggle.syncState();
    }

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (mDrawerToggle.onOptionsItemSelected(item)) {
          return true;
        }
        return super.onOptionsItemSelected(item);
    }

  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) {
      mDrawerList.setItemChecked(position, true);
      mTitle=mDrawerTitles[position];
      getSupportActionBar().setTitle(mTitle);
      mDrawerLayout.closeDrawer(mDrawerList);
      
      Toast.makeText(getApplicationContext(), "Pressed: "+mTitle, Toast.LENGTH_LONG).show();
      
      FragmentManager fm = getSupportFragmentManager();
      FragmentTransaction t = fm.beginTransaction();
      t.remove(fm.findFragmentByTag(currentFragTag));
      Fragment f = null;
      
      switch(position){
      case FRAG_TYPE_ABOUT:
        f = SimpleFragment.newInstance("HELLO!");
        currentFragTag = SimpleFragment.class.getName();
        break;
      case FRAG_TYPE_SIMPLE:
      ArrayList<HeadedList<String, String>> info1;
        info1 = new ArrayList<HeadedList<String,
            String>>();
        for(int i=0; i<5; i++){
          ArrayList<String> list =
              new ArrayList<String>();
          for(int j=0; j<9; j++)
            list.add("Hello World");
        info1.add(new HeadedList<String,
            String>("Header "+Integer.toString(i),
              list));
        }
        
        f = new ListFragment(R.layout.row_list,
            R.layout.header_list,
            info1,
            new ListItemInflationAction(),
            new ListHeaderInflationAction(),
            new ListOnItemClickListener());
        f.setRetainInstance(true);
        currentFragTag = ListFragment.class.getName();
        break;
      case FRAG_TYPE_GRID:
        f = new GridViewFragment();
        currentFragTag = GridViewFragment.class.getName();
        break;
      case FRAG_TYPE_WEB:
        f= new AsyncTaskFragment();
        currentFragTag = AsyncTaskFragment.class.getName();
        break;
      case FRAG_TYPE_NESTED:
        f = new NestedFragment();
        currentFragTag = NestedFragment.class.getName();
        break;
      case FRAG_TYPE_VIEWPAGER:
        f = new ViewPagerFragment();
        f.setRetainInstance(true);
        currentFragTag = ViewPagerFragment.class.getName();
        break;
      case FRAG_TYPE_ERROR:
        f = SimpleFragment.newInstance("Esta seccin ha sido removida para futuro reuso");
        currentFragTag = SimpleFragment.class.getName();
        break;
      }
      
      t.add(R.id.act_home_container_root, f, currentFragTag);
        t.commit();
  }
}
Java Source Code List
