VIEW - HIEN THI VA AN VIEW

- ẨN :

Button btnSend = findViewById(R.id.btnSend);

// hiding the button

btnSend.setVisibility(View.GONE);




OR :




// hiding the button

btnSend.setVisibility(View.INVISIBLE);




- HIỂN THỊ :




// showing the button btnSend.setVisibility(View.VISIBLE);