Getting dialog when click on button

Can anybody tell me, how to get a dialog popup (ColorPickerDialog) when i click on Button.

Code from comments:

  Button color = (Button)findViewById(R开发者_StackOverflow社区.id.color_button);
    color.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            new ColorPickerDialog(getBaseContext(), mListener ,a ).show();
            System.out.println("button pressed");
        }
    });

   }),initialColor);
   dlg.show();

} });

I want select color , i done with spinner by using names. but i want more color's for that i have color picker dialog when i press on that button i want it will popup see in image: http://dl.dropbox.com/u/38493970/device-2011-08-23-134910.png

You can use this one http://code.google.com/p/color-picker-view/
EDIT:

button.setOnClickListener(new OnClickListener() {

 void onClick(View v) {
    // create the color picker dialog and display it.
    ColorPickerDialog dlg = new ColorPickerDialog(v.getContext(),new OnColorChangedListener()     {
          void colorChanged(int color) {
               mSelectedColor = color;
           }

       }),initialColor);
       dlg.show();
   }
});

there are lot of example i've found for you some of them are
Example 1
Example 2
Example 3
Example 4
Example 5
may this examples helpful to you..Happy coding..Thanks Pragna