Keyboard hide event with BACK key

Question

I\'ve noticed in the Android Market Application, when you click over the search button, it shows the keyboard, but when you click the back button,

Answer 1

The google market application is using Fragments via the API Support Package. When you click back it is actually going back in the fragment stack. It's like going back an activity without the screen swipe. The fragment that they go back to does not contain the search box which is why it disappears.