Activity Immersive Mode

记录一下沉浸式的代码条件

/** Combination of all flags required to put activity into immersive mode */
const val FLAGS_FULLSCREEN =
        View.SYSTEM_UI_FLAG_LOW_PROFILE or
                View.SYSTEM_UI_FLAG_FULLSCREEN or
                View.SYSTEM_UI_FLAG_LAYOUT_STABLE or
                View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY or
                View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION or
                View.SYSTEM_UI_FLAG_HIDE_NAVIGATION


    fragment.systemUiVisibility = FLAGS_FULLSCREEN