【简答题】(N=Nurse P=Patient) N: Hello! Are you Mr Li? P: Yes, I am. N: I'm your nurse. It's my job to take you to your ward. Please follow me. P: OK. Thank you. N: Here is your bed. The call button i...
【简答题】The Button.onClickListener intece defines a "callback" method. A callback method is a method that will get called at a future time, in this case, whenever the user clicks on a particular Button. Wh...