【iOS】Swipe与Pan区别分析
By definition, a swipe gesture is necessarily also a pan gesture -- both involve translational movement of touch points. The difference is in the recognizer semantics: a pan recognizer looks for the beginning of translational movement and continues to report movement in any direction over time, while a swipe recognizer makes an instantaneous decision as to whether the user's touches moved linearly in the required direction. 根据定义,滑动手势也必然是平移手势 - 都涉及触摸点的平移运动。不同之处在于识别器语义:平移识别器查找平移运动的开始并继续报告随时间在任何方向上的移动,而滑动识别器立即决定用户的触摸是否在所需方向上线性移动。 By default, no two recognizers will recognize the same