Android Open Source - CoolWeather Main Activity

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Back to project page CoolWeather.

License

The source code is released under:

GNU General Public License

Java Source Code

package org.das.coolweather.fragmentactivities;
/*ww w .  j a  v a  2 s.c  o  m*/
import java.util.Locale;

import org.das.coolweather.R;
import org.das.coolweather.activities.SettingsActivity;
import org.das.coolweather.fragments.Map;
import org.das.coolweather.fragments.Search;
import org.das.coolweather.utils.WeatherHttpClient;

import android.app.ActionBar;
import android.app.FragmentTransaction;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.view.ViewPager;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.SearchView;
import android.widget.SearchView.OnQueryTextListener;

public class MainActivity extends FragmentActivity implements ActionBar.TabListener, OnQueryTextListener {

  /**
   * The {@link android.support.v4.view.PagerAdapter} that will provide
   * fragments for each of the sections. We use a {@link FragmentPagerAdapter}
   * derivative, which will keep every loaded fragment in memory. If this
   * becomes too memory intensive, it may be best to switch to a
   * {@link android.support.v13.app.FragmentStatePagerAdapter}.
   */
  SectionsPagerAdapter mSectionsPagerAdapter;

  /**
   * The {@link ViewPager} that will host the section contents.
   */
  ViewPager mViewPager;


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

    // Set up the action bar.
    final ActionBar actionBar = getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

    // Create the adapter that will return a fragment for each of the three
    // primary sections of the activity.
    mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager(), getApplicationContext());

    // Set up the ViewPager with the sections adapter.
    mViewPager = (ViewPager) findViewById(R.id.pager);
    mViewPager.setAdapter(mSectionsPagerAdapter);

    // When swiping between different sections, select the corresponding
    // tab. We can also use ActionBar.Tab#select() to do this if we have
    // a reference to the Tab.
    mViewPager
        .setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
          @Override
          public void onPageSelected(int position) {
            actionBar.setSelectedNavigationItem(position);
          }
        });

    // For each of the sections in the app, add a tab to the action bar.
    for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
      // Create a tab with text corresponding to the page title defined by
      // the adapter. Also specify this Activity object, which implements
      // the TabListener interface, as the callback (listener) for when
      // this tab is selected.
      actionBar.addTab(actionBar.newTab()
          .setText(mSectionsPagerAdapter.getPageTitle(i))
          .setTabListener(this));
    }
    SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
    String units = sharedPref.getString(SettingsActivity.TEMPERATURE, "metric");
    String predLang = sharedPref.getString(SettingsActivity.PREDICTION_LANG, "sp");
    WeatherHttpClient.UNITS = units;
    WeatherHttpClient.PRED_LANG = predLang;
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {

    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    MenuItem searchItem = menu.findItem(R.id.action_search);
        SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);

        searchView.setQueryHint(getApplicationContext().getString(R.string.search) + "...");
        searchView.setOnQueryTextListener(this);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      Intent i = new Intent(this, SettingsActivity.class);
      startActivity(i);
    }
    return super.onOptionsItemSelected(item);
  }

  @Override
  public void onTabSelected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
    // When the given tab is selected, switch to the corresponding page in
    // the ViewPager.
    mViewPager.setCurrentItem(tab.getPosition());
  }

  @Override
  public void onTabUnselected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
  }

  @Override
  public void onTabReselected(ActionBar.Tab tab,
      FragmentTransaction fragmentTransaction) {
  }

  @Override
  public boolean onQueryTextChange(String newText) {
    // TODO Auto-generated method stub
    return false;
  }

  @Override
  public boolean onQueryTextSubmit(String query) {
    mViewPager.setCurrentItem(0);
    Search busqueda = (Search)mViewPager.getAdapter().instantiateItem(mViewPager, mViewPager.getCurrentItem());
    busqueda.getMinDetailsFromSearch(query);

    return false;
  }

  /**
   * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
   * one of the sections/tabs/pages.
   */
  private class SectionsPagerAdapter extends FragmentPagerAdapter {

    private Context context;
    
    public SectionsPagerAdapter(FragmentManager fm, Context context) {
      super(fm);
      this.context = context;
    }

    @Override
    public Fragment getItem(int position) {
      // getItem is called to instantiate the fragment for the given page.
      // Return a PlaceholderFragment (defined as a static inner class
      // below).
      Fragment toReturn = null;
      switch (position+1) {
      case 1:
        toReturn = Search.newInstance();
        break;
      case 2:
        toReturn = Map.newInstance();
        break;
      }
      return toReturn;
    }

    @Override
    public int getCount() {
      // Show 2 total pages.
      return 2;
    }

    @Override
    public CharSequence getPageTitle(int position) {
      Locale l = Locale.getDefault();
      switch (position) {
      case 0:
        return context.getString(R.string.title_search).toUpperCase(l);
      case 1:
        return context.getString(R.string.title_map).toUpperCase(l);
      }
      return null;
    }
  }


}

Java Source Code List

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