Activities and Itents

Clase Adapter

package com.example.visorimagenes;

import android.content.Context;
import android.graphics.Color;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.ImageView;

public class ImagenAdapter extends BaseAdapter {
    
    private Context mContext;
    private Integer [] mThumbIds = null;

    public ImagenAdapter(Context c, Integer [] imagenes) {
        mContext = c;
        mThumbIds = imagenes;
    }

    public int getCount() {
        return mThumbIds.length;
    }

    public Object getItem(int position) {
        return null;
    }

    public long getItemId(int position) {
        return 0;
    }

    
    /*
     *  getView se llama automaticamente recuperando cada uno de los elementos
     *  de mi getCount 
     *  (non-Javadoc)
     * @see android.widget.Adapter#getView(int, android.view.View, android.view.ViewGroup)
     */
    
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        Button buttonMenu;
        if (convertView == null) { // if it's not recycled, initialize some
                                    // attributes
            buttonMenu = new Button(mContext);
            buttonMenu.setText("Opcion " + (position + 1) );
            GridView.LayoutParams params = new GridView.LayoutParams(
                    GridView.LayoutParams.WRAP_CONTENT, GridView.LayoutParams.WRAP_CONTENT);
            buttonMenu.setLayoutParams(params);
            buttonMenu.setPadding(8, 8, 8, 8);
            buttonMenu.setBackgroundColor(Color.WHITE);
        } else {
            buttonMenu = (Button) convertView;
        }
        
        int imagen =  mThumbIds[position];
        buttonMenu.setCompoundDrawablesWithIntrinsicBounds(0, imagen, 0, 0);
            
        return buttonMenu;
    }

}

 

Activitie

package com.example.visorimagenes;

import com.example.visorimagenes.R.drawable;

import android.os.Bundle;
import android.app.Activity;
import android.graphics.SweepGradient;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener  {
        
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.menugrid);
        
        GridView gridview = (GridView) findViewById(R.id.gridview);
        gridview.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);
        //gridview.setColumnWidth(125);
        //gridview.setColumnWidth(GridView.STRETCH_SPACING_UNIFORM);
//        gridview.setNumColumns(GridView.AUTO_FIT);
        //gridview.setNumColumns(3);
        Integer [] imagenes = {R.drawable.miau, R.drawable.gato, 
                R.drawable.gusano, R.drawable.lobo, R.drawable.charisar,
                R.drawable.pikachu}; 
        ImagenAdapter adapter = new ImagenAdapter(this, imagenes); 
        gridview.setAdapter(adapter);    
        
        gridview.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int position,
                    long arg3) {
                Log.v("onItemClick", "entro al click");
                // TODO Auto-generated method stub
                Toast.makeText(MainActivity.this, "" + position, Toast.LENGTH_SHORT).show();
                
            }
            });
        
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menuopciones, menu);
        return true;
    }
    
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // TODO Auto-generated method stub
        switch (item.getItemId()) {
        case R.id.menu_opcion1:
            Toast.makeText(MainActivity.this, "Menu Opcion 1",Toast.LENGTH_SHORT).show();            
            break;
        case R.id.menu_opcion2:
            Toast.makeText(MainActivity.this, "Menu Opcion 2",Toast.LENGTH_SHORT).show();            
            break;
        case R.id.menu_opcion3:
            Toast.makeText(MainActivity.this, "Menu Opcion 3",Toast.LENGTH_SHORT).show();            
            break;

        default:
            break;
        }
        return false;
        //return super.onOptionsItemSelected(item);
        
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        Log.v("Onclick", "");
        
    }

}