The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.
12月20日，龙玥城购物中心，市民在奇趣海洋欢乐城参观。新京报记者 王贵彬 摄
，这一点在爱思助手下载最新版本中也有详细论述
Фото: Valentyn Ogirenko / Reuters
值得一提的是，整场发布会，都由 Galaxy S26 Ultra 直播拍摄。