通過代碼控制隱藏
隱藏佈局控件:
findViewById(R.id.FaceActivity_ConstraintLayoutBar).setVisibility(View.GONE);
隱藏圖標:
mButtonMobilePhone.setVisibility(View.GONE);
隱藏狀態欄:
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);