Android Open Source - Operation-Valkyrie Gallery Activity

From Project

Back to project page Operation-Valkyrie.
License

The source code is released under:
Terms and conditions Preamble: This Agreement, signed on Jun 10, 2012 [hereinafter: Effective Date] governs the relationship between the Enduser, a private person, (hereinafter: Licensee) and Paul N...
If you think the Android project Operation-Valkyrie listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package valkyrie.ui.gallery;
/*from w ww  . java 2  s.  c  om*/

import valkyrie.file.DecodeBitmaps;
import valkyrie.file.FileManager;
import valkyrie.main.R;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.GridView;
import android.widget.Toast;
import android.graphics.BitmapFactory;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;

/**
 * 
 * COPYRIGHT: Paul Neuhold, Laurenz Theuerkauf, Alexander Ritz, Jakob
 * Schweighofer, Milo Tischler ? Milo Tischler, Jakob Schweighofer, Alexander
 * Ritz, Paul Neuhold, Laurenz Theuerkauf
 * 
 */

/**
 * GalleryActivty if responsible for displaying the Gridview. Also has some
 * Listeners implemented for opening the Picture in fullscreen Mode and open a
 * context Menu for longClick.
 * 
 * Also responsible for creating and managing an OptionsMenu.
 * 
 * For displaying a picture in Fullscreen mode a new Activity is created, same
 * is true for the Aboutscreen.
 */
public class GalleryActivity extends Activity {
  private static final String TAG = "GalleryActivity";
  private int index = 0;
  private Bundle savedInsta;
  private int YES = 1;
  private int NO = 0;

  /**
   * Sets the ContentView to the GalleryLayout Registers ContextMenu and
   * therefore implements a ClickListener and a onLongClickListener
   * 
   * 
   * @param Bundle
   *            savedInstanceState
   */
  @Override
  public void onCreate(Bundle savedInstanceState) {

    this.savedInsta = savedInstanceState;
    new DecodeBitmaps(NO);
    setContentView(R.layout.gallery);

    GridView gallery = (GridView) findViewById(R.id.gallery);
    gallery.setAdapter(new ImageAdapter(this));
    registerForContextMenu(gallery);
    super.onCreate(savedInstanceState);

    gallery.setOnItemClickListener(new OnItemClickListener() {

      /**
       * Starts a new Activity when a thumb in the Gridview is selected.
       */
      public void onItemClick(AdapterView<?> parent, View v,
          int position, long id) {

        Intent showPicIntent = new Intent(getApplicationContext(),
            ShowPicActivity.class);
        showPicIntent.putExtra("id", position);
        GalleryActivity.this.startActivity(showPicIntent);
      }
    });
    // added an onitemlongclickListener for longclick options
    gallery.setOnItemLongClickListener(new OnItemLongClickListener() {

      /**
       * sets the position on long click for further uses.
       */
      public boolean onItemLongClick(AdapterView<?> parent, View v,
          int position, long id) {

        GalleryActivity.this.index = position;
        return false;
      }
    });

  }

  /**
   * Adds a menu Point for the About Informations
   * 
   * @param Menu menu
   *            
   */
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    menu.add("About");
    return super.onCreateOptionsMenu(menu);
  }

  /**
   * Handles the click on about in the optionsMenu
   * 
   * @param MenuItem item
   *   
   */
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {

    if (item.getTitle() == "About") {
      Intent aboutIntent = new Intent(GalleryActivity.this,
          AboutActivity.class);
      GalleryActivity.this.startActivity(aboutIntent);
    }
    return super.onOptionsItemSelected(item);
  }

  /**
   * 
   * Creates some menu entries and a submenu for the ContextMenu
   * 
   * @param ContextMenu menu
   * @param View v 
   * @param ContextMenuInfo menuInfo
   * 
   */
  @Override
  public void onCreateContextMenu(ContextMenu menu, View v,
      ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    
    menu.setHeaderTitle("Picture Options");
    menu.add(0, v.getId(), 0, "Delete selected Picture");
    SubMenu subMenu = menu.addSubMenu(0, v.getId(), 0,
        "Delete all Pictures");
    subMenu.add(0, YES, 0, "Yes");
    subMenu.add(0, NO, 0, "No");
  }

  /**
   * Handles the Events from the clicks on the items from the contextMenu
   * 
   * @param MenuItem item
   */
  @Override
  public boolean onContextItemSelected(MenuItem item) {

    FileManager fileManager = new FileManager(this.getApplicationContext());
    BitmapFactory.Options opt = new BitmapFactory.Options();
    opt.inSampleSize = 4;
    if (item.getTitle() == "Delete selected Picture") {

      fileManager.deleteImageFromGallery(DecodeBitmaps.fullImgNames
          .get(index));
      DecodeBitmaps.done = false;
      new DecodeBitmaps(NO);

      Toast.makeText(this.getApplicationContext(), "Picture Deleted",
          Toast.LENGTH_SHORT).show();
      onCreate(savedInsta);

    } else if (item.getTitle() == "Delete all Pictures") {

    } else if (item.getItemId() == YES) {
      for (String s : DecodeBitmaps.fullImgNames) {
        fileManager.deleteImageFromGallery(s);
      }
      Toast.makeText(this.getApplicationContext(),
          "All Pictures were deleted", Toast.LENGTH_SHORT).show();
      DecodeBitmaps.done = false;
      new DecodeBitmaps(NO);
      onCreate(savedInsta);

    } else if (item.getItemId() == NO) {
      DecodeBitmaps.done = false;
      new DecodeBitmaps(NO);
      onCreate(savedInsta);
    } else {
      return false;
    }
    return true;
  }

  @Override
  public void onPause() {
    super.onPause();
  }

  @Override
  public void onBackPressed() {
    super.onBackPressed();
    DecodeBitmaps.done = false;
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
  }
}
Java Source Code List
