Android：如何使 Spinner 不可见，然后又可见？

Question

I have the following Spinner :

Spinner spinner = (Spinner)findViewById(R.id.sp1);

and I initially make it invisible like this:

spinner.setVisibility(TRIM_MEMORY_BACKGROUND);

This does make the Spinner invisible but how to make it visible again?

Thanks in advance.

Answer 1

//Hide

spinner.setVisibility(View.GONE);

//Show

spinner.setVisibility(View.VISIBLE);

Answer 2

if you want to change via xml code

// HIDE

  android:visibility="invisible"

//SHOW

  android:visibility="visible"

// i am not sure about this one, it too hides, but why we have this, anyone can clear me?

  android:visibility="gone"