Scroller startScroll() fling() 参数详解

最新推荐文章于 2024-04-10 08:55:11 发布

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最新推荐文章于 2024-04-10 08:55:11 发布 · 1.4k 阅读

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文章标签：

#Scroller #Fling参数 #startScroll参数

本文详细解析了Scroller组件中startScroll()和fling()方法的参数含义，特别是fling()方法如何根据初速度确定滚动距离，以及不同参数如何影响滚动方向和范围。

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fling()

/**
     * Start scrolling based on a fling gesture. The distance travelled will
     * depend on the initial velocity of the fling.
     * 
     * @param startX Starting point of the scroll (X)
     * @param startY Starting point of the scroll (Y)
     * @param velocityX Initial velocity of the fling (X) measured in pixels per
     *        second.
     * @param velocityY Initial velocity of the fling (Y) measured in pixels per
     *        second
     * @param minX Minimum X value. The scroller will not scroll past this
     *        point.
     * @param maxX Maximum X value. The scroller will not scroll past this
     *        point.
     * @param minY Minimum Y value. The scroller will not scroll past this
     *        point.
     * @param maxY Maximum Y value. The scroller will not scroll past this
     *        point.
     */
public