Android Open Source - android-gridview-example1 Grid Activity

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From Project

Back to project page android-gridview-example1.

License

The source code is released under:

Apache License

Java Source Code

package com.tdrury.gridviewactivitywithcontextmenu;
/*from   w  w  w  .j a  v  a  2 s  .c o  m*/
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.GridView;

public class GridActivity extends Activity {

  private static final String TAG = "GridActivity";
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.i(TAG, "onCreate: called");
    setContentView(R.layout.grid);
    
    List<String> elements = new ArrayList<String>();
    for (int i = 0; i < 20; i++) {
      elements.add(String.valueOf(i));
    }
    
    GridView gridView = (GridView)findViewById(R.id.grid);
    
    GridAdapter adapter = new GridAdapter(gridView.getContext(), R.layout.grid_element, elements);
    //Log.i(TAG, "onCreate: adapter ["+adapter.toString()+"]");
    gridView.setAdapter(adapter);
    registerForContextMenu(gridView);
    
//    gridView.setOnItemClickListener(new OnItemClickListener() {
//      @Override
//      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//        Task selectedTask = (Task)parent.getAdapter().getItem(position);
//        Log.i(TAG, "onItemClick: selected task ID ["+selectedTask.getId()+"]");
//          Intent intent = new Intent(parent.getContext(), TaskViewActivity.class);
//          intent.putExtra(TaskViewActivity.TASK_ID, selectedTask.getId());
//          startActivity(intent);
//      }
//    });
    
        gridView.setOnItemLongClickListener(new OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
        String selectedElement = (String)parent.getAdapter().getItem(position);
        GridAdapter adapter = (GridAdapter)parent.getAdapter();
        Log.i(TAG, "onItemLongClick: selected element ["+selectedElement+"] adapter=["+adapter+"]");
        if (adapter != null) {
          adapter.setSelectedPosition(position);
        }
                parent.showContextMenu();      
        return true;
            }
        });      
  }

  @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 void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
      super.onCreateContextMenu(menu, view, menuInfo);
      Log.i(TAG, "onContextCreateMenu: called. menuInfo is ["+menuInfo+"]");
      
        getMenuInflater().inflate(R.menu.grid_context_menu, menu);
//    menu.add(0, R.id.action_1, 100, R.string.action_1);
//    menu.add(0, R.id.action_2, 200, R.string.action_2);
//    menu.add(0, R.id.action_3, 300, R.string.action_3);

    AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
        if (info != null) Log.i(TAG, "onContextItemSelected: Holy Shit! info is not null!");
        menu.setHeaderTitle("Options");        
    }   

    @Override
    public boolean onContextItemSelected(MenuItem item) {
        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)item.getMenuInfo();
        Log.i(TAG, "onContextItemSelected: called; info=["+info+"]");


        switch (item.getItemId()) {
          case R.id.action_1:
            Log.i(TAG, "onContextItemSelected: ACTION_1 selected");
            break;
          case R.id.action_2:
            Log.i(TAG, "onContextItemSelected: ACTION_2 selected");
            break;
          case R.id.action_3:
            Log.i(TAG, "onContextItemSelected: ACTION_3 selected");
            break;
        }
        return true;
//        Log.i(TAG, "onContextItemSelected: notifying adapter ["+adapter+"] data change");
//        adapter.notifyDataSetChanged();
//        ((ScrumTaskBoardActivity)this.getActivity()).getPagerAdapter().notifyDataSetChanged();
//        return true;
//      }        
//        return super.onContextItemSelected(item);
    }  
  
}

Java Source Code List

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