Android Open Source - observer Places Activity

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License

The source code is released under:

GNU General Public License

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Java Source Code

package uk.ac.horizon.observer.vc;
//w  ww  .j  ava  2s  . c o m
import uk.ac.horizon.observer.R;
import uk.ac.horizon.observer.model.Observation;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

/**
 * An activity representing a list of Places. This activity has different
 * presentations for handset and tablet-size devices. On handsets, the activity
 * presents a list of items, which when touched, lead to a {@link TasksActivity}
 * representing item details. On tablets, the activity presents the list of
 * items and item details side-by-side using two vertical panes.
 * <p>
 * The activity makes heavy use of fragments. The list of items is a
 * {@link PlacesFragment} and the item details (if present) is a
 * {@link TaskFragment}.
 * <p>
 * This activity also implements the required {@link PlacesFragment.Callbacks}
 * interface to listen for item selections.
 */
public class PlacesActivity extends FragmentActivity implements
    PlacesFragment.Callbacks {

  /**
   * Whether or not the activity is in two-pane mode, i.e. running on a tablet
   * device.
   */
  private boolean mTwoPane;
  private boolean rotated = false;

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

    if (findViewById(R.id.place_detail_container) != null) {
      // The detail container view will be present only in the
      // large-screen layouts (res/values-large and
      // res/values-sw600dp). If this view is present, then the
      // activity should be in two-pane mode.
      mTwoPane = true;

      // In two-pane mode, list items should be given the
      // 'activated' state when touched.
      ((PlacesFragment) getSupportFragmentManager().findFragmentById(
          R.id.place_list)).setActivateOnItemClick(true);
    }
    Observation.initDB(this);
  }

  /**
   * Callback method from {@link PlacesFragment.Callbacks} indicating that the
   * item with the given ID was selected.
   */
  @Override
  public void onItemSelected(String id) {
    if (mTwoPane) {
      // In two-pane mode, show the detail view in this activity by
      // adding or replacing the detail fragment using a
      // fragment transaction.
      Bundle arguments = new Bundle();
      arguments.putString(TaskFragment.ARG_ITEM_ID, id);
      TaskFragment fragment = new TaskFragment();
      fragment.setArguments(arguments);
      getSupportFragmentManager().beginTransaction()
          .replace(R.id.place_detail_container, fragment).commit();

    } else {
      // In single-pane mode, simply start the detail activity
      // for the selected item ID.
      Intent detailIntent = new Intent(this, TasksActivity.class);
      detailIntent.putExtra(TaskFragment.ARG_ITEM_ID, id);
      startActivity(detailIntent);
    }
  }

  @Override
  public void onStop() {
    super.onStop();
    finish();
  }
}

Java Source Code List