title: Add Toast in button.setOnClickListener?
body: <p><strong>How to Toast is add when changing picture ?</strong> </p>
  
  <pre><code>  button = (ImageButton)findViewById(R.id.imageButton1);
      button.setOnClickListener(new View.OnClickListener() {
          public void onClick(View v)  {
              if (bIcon) 
                  button.setImageResource(R.drawable.add1);
               else 
                           button.setImageResource(R.drawable.add2);
                  bIcon = !bIcon;                                             
          }   });
  </code></pre>
  
  <p><strong>When I do like this</strong> </p>
  
  <pre><code> button = (ImageButton)findViewById(R.id.imageButton1);
      button.setOnClickListener(new View.OnClickListener() {
          public void onClick(View v)  {
              if (bIcon) 
                  button.setImageResource(R.drawable.add1);
                 Toast.makeText(MainActivity.this, "drawable.add1", Toast.LENGTH_SHORT).show();
               else 
                          button.setImageResource(R.drawable.add2);
                   Toast.makeText(MainActivity.this, "drawable.add2", Toast.LENGTH_SHORT).show();
                  bIcon = !bIcon;                                             
          }
      });
  </code></pre>
  
  <p><strong>Changing the image is not</strong></p>