Android Open Source - israelweather Main Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.litvin.israelweather;
//from w  w w .  j a  v a 2  s  .  c  om
import android.annotation.TargetApi;
import android.app.ActionBar;
import android.os.Bundle;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.widget.ArrayAdapter;

public class MainActivity extends FragmentActivity implements
    ActionBar.OnNavigationListener {

  /**
   * The serialization (saved instance state) Bundle key representing the
   * current dropdown position.
   */
  private static final String STATE_SELECTED_NAVIGATION_ITEM = "selected_navigation_item";
  private static final String[] FRAGMENT_TAGS = {"rainRadarFragmant", "tempMapFragment", "tideTableFragment"};
  
  private static final int RAIN_RADAR_FRAMES = 12;
  private Fragment rainRadarFragmant, tempMapFragment, tideTableFragment;
  private Fragment fragmentArray[];
  
  private Bitmap errorBitmap;
  

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

    // Set up the action bar to show a dropdown list.
    final ActionBar actionBar = getActionBar();
    actionBar.setDisplayShowTitleEnabled(false);
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);

    // Set up the dropdown list navigation in the action bar.
    actionBar.setListNavigationCallbacks(
    // Specify a SpinnerAdapter to populate the dropdown list.
        new ArrayAdapter<String>(getActionBarThemedContextCompat(),
            android.R.layout.simple_list_item_1,
            android.R.id.text1, new String[] {
                getString(R.string.title_section_rain_radar),
                getString(R.string.title_section_temperatures_map),
                getString(R.string.title_section_tide_table), }), this);
    
    Drawable drw = getResources().getDrawable(R.drawable.bullet_error);
      errorBitmap = ((BitmapDrawable)drw).getBitmap();
      
    String[] rainRadarUrls = new String[RAIN_RADAR_FRAMES];
    for (int i = 0; i < rainRadarUrls.length; i++)
      rainRadarUrls[i] = String.format(getString(R.string.ims_rain_radar_url), i, RAIN_RADAR_FRAMES);
    
    
    /*
    tempMapFragment = new ImageFragment();
    rainRadarFragmant = new ImageFragment();
    tideTableFragment = new ImageFragment();
    Bundle tempMapFragmentArgs = new Bundle();
    tempMapFragmentArgs.putStringArray(ImageFragment.ARG_URLS, new String[] {getString(R.string.ims_temperatures_map_url)});
    Bundle rainRadarFragmantArgs = new Bundle();
    rainRadarFragmantArgs.putStringArray(ImageFragment.ARG_URLS, rainRadarUrls);
    Bundle tideTableFragmentArgs = new Bundle();
    tideTableFragmentArgs.putStringArray(ImageFragment.ARG_URLS, new String[] {getString(R.string.isramar_tide_table_url)});
    tempMapFragment.setArguments(tempMapFragmentArgs);
    rainRadarFragmant.setArguments(rainRadarFragmantArgs);
    tideTableFragment.setArguments(tideTableFragmentArgs);
    */
    
    rainRadarFragmant = (ImageFragment)getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAGS[0]);
    if (rainRadarFragmant == null)
      rainRadarFragmant = ImageFragment.newInstance(rainRadarUrls, savedInstanceState, errorBitmap);

    tempMapFragment = (ImageFragment)getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAGS[1]);
    if (tempMapFragment == null)
      tempMapFragment = ImageFragment.newInstance(new String[] {getString(R.string.ims_temperatures_map_url)}, savedInstanceState, errorBitmap);
    
    tideTableFragment = (ImageFragment)getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAGS[2]);
    if (tideTableFragment == null)
      tideTableFragment = ImageFragment.newInstance(new String[] {getString(R.string.isramar_tide_table_url)}, savedInstanceState, errorBitmap);
    
    fragmentArray = new Fragment[] {rainRadarFragmant, tempMapFragment, tideTableFragment};
  }

  /**
   * Backward-compatible version of {@link ActionBar#getThemedContext()} that
   * simply returns the {@link android.app.Activity} if
   * <code>getThemedContext</code> is unavailable.
   */
  @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
  private Context getActionBarThemedContextCompat() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
      return getActionBar().getThemedContext();
    } else {
      return this;
    }
  }

  @Override
  public void onRestoreInstanceState(Bundle savedInstanceState) {
    // Restore the previously serialized current dropdown position.
    super.onRestoreInstanceState(savedInstanceState);
    if (savedInstanceState.containsKey(STATE_SELECTED_NAVIGATION_ITEM)) {
      getActionBar().setSelectedNavigationItem(
          savedInstanceState.getInt(STATE_SELECTED_NAVIGATION_ITEM));
    }
  }

  @Override
  public void onSaveInstanceState(Bundle outState) {
    // Serialize the current dropdown position.
    super.onSaveInstanceState(outState);
    outState.putInt(STATE_SELECTED_NAVIGATION_ITEM, getActionBar()
        .getSelectedNavigationIndex());
  }

  @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);
    return true;
  }

  @Override
  public boolean onNavigationItemSelected(int position, long id) {
    // When the given dropdown item is selected, show its contents in the
    // container view.
    getSupportFragmentManager().beginTransaction()
        .replace(R.id.container, fragmentArray[position], FRAGMENT_TAGS[position])
        .commit();
    return true;
  }


}

Java Source Code List

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