Android - How to Hide a Button Dynamically

The following shows how to hide the view image button when a user's profile has no images.

Button viewImagesButton = (Button) findViewById(R.id.view_images_button);
if(images.size() <= 0) {
viewImagesButton.setVisibility(android.view.View.INVISIBLE);
}

Similarily you can show the button by:

viewImagesButton.setVisibility(android.view.View.VISIBLE);