Android Dialog: Removing title bar

Question

I have a weird behavior I can\'t pinpoint the source of.

I have my app with the classic

requestWindowFeature(Window.FEATURE_NO_TITLE);

Answer 1

With next variant I have no reaction:

dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); //before     
dialog.setContentView(R.layout.logindialog);

So, I try to use next:

dialog.supportRequestWindowFeature(Window.FEATURE_NO_TITLE); //before     
dialog.setContentView(R.layout.logindialog);

This variant work excellent.