Question

I would like to ask the use of image button in Android programming when simple button can also add the image with the button. How can we generate click event of image button?

Answer 1

ImageButton inherits from ImageView and has its own properties compared to Button properties.

you can check properties here,
http://developer.android.com/reference/android/widget/ImageButton.html

Make your activity implement OnClickListener, then
in OnCreate() or after that event.
use ,

ImageButton btn = new ImageButton(this); or 
//ImageButton btn = (ImageButton) findViewById(R.id.imgbtnid)
btn.setOnClickListener(this);

in onClick() function you can handle the click event