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panpf avatar panpf commented on July 16, 2024

接下来会考虑这个功能的

from sketch.

panpf avatar panpf commented on July 16, 2024

先说结果：放弃增加手势旋转功能。

原因有以下几点：

  1. 工作量大。尝试实现的过程中发现手势旋转功能实现起来非常复杂，因为不同的角度缩放倍数和位移量都不一样，旋转的过程中要动态计算并更新，现有架构需要较大的重构才能实现。而 PhotoViewEx 并没有考虑这些，所以它的效果并不好
  2. 体验了 PhotoViewEx 的手势旋转后个人感觉手势旋转手势用起来体验并不好，远不如提供单独旋转按钮用起来方便舒服
  3. 纵观市面上排名靠前的 App，例如微信、微博、QQ，哔哩哔哩、Twitter它们都没有提供手势旋转功能，甚至他们都没有提供旋转功能，说明这是一个非常低频且不是那么重要的功能

from sketch.

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