Collection的onBatchResize会闭包state

可在repo内example/collection.tsx文件的onBatchResize函数内添加console.log({ size1 })，观看demo效果。当多次发生resize时，打印的size1始终是第一次渲染时的size1。

原因应该是src/SingleObserver/index.tsx内，onInternalResize用useCallback做了持久化，如果onCollectionResize发生了更新则无法通知onInternalResize做出更新。因此应该加一个

const onCollectionResizeRef = React.useRef(onCollectionResize); onCollectionResizeRef.current = onCollectionResize;

之类的改造；

或者src/Collection.tsx对onBatchResize用ref包装，onResize依赖传空数组做成持久化。

Start with example/collection.tsx and add the reported console.log in onBatchResize to reproduce the stale size1 value. Then read the memoized onInternalResize in src/SingleObserver/index.tsx and the onBatchResize handling in src/Collection.tsx. Done means repeated resizes observe the current callback state rather than the value from the first render.