Hiding ActionBar for Android > 4.1

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I am trying this code which is shown in google developer's page,but at no vail.

 View decorView = getWindow().getDecorView();
 // Hide the status bar.
 int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
 decorView.setSystemUiVisibility(uiOptions);
 // Remember that you should never show the action bar if the
 // status bar is hidden, so hide that too if necessary.
 ActionBar actionBar = getActionBar();
 actionBar.hide();

Should I add something on the manifest file too?

Thank you.

asked 1 min ago

Theo

44

Hiding ActionBar for Android > 4.1