UIButton TouchUpInside有时不会开火

Question

I am creating UIButtons programmatically and set their targets as well. Most of the time TouchDown-TouchDragInside-TouchUpInside chain seems to work properly but if I perform this chain of events fast (about 2-3 times per second) method bound to TouchUpInside is sometimes not firing.

From my understanding UIEvents will always fire even if they don't fire immediately. Is this a known issue that I can't seem to find anything about? What can I do about it, besides touching things slower?

Answer 1

我认为你创建的按钮可以切换并点击。如果这样，两个手势也会处理不好，你可以在按钮上添加滑动手势，它运作良好;希望可以帮到你。