Question

我必须轮换图像,但我可以不使用姿态或梯子,因此,我想使用2个顿子,1个用来锁定轮值,另一个用来为我UIImage语轮值的子午餐。

但是,我只接到一次通报,以打断事件,因此我的形象只是一次轮换。

在我向我发出警告时,有办法使事件持续??

Is there isn t such opportunity, how can I implement this continous rotation with the two buttons?

如果我说,“我”对“Si”发展说什么错了。

Answer 1

There s a couple of ways you could do this - UIButtons have touchDown and touchUp events, so you could start a process on touchDown and end it on touchUpInside. This discussion might be useful.

Alternatively, rather than using UIbuttons you might want to try detecting a touchesBegan in a particular area (say on a UIImageView containing a button-lie image), then running the rotation animation until the touchesEnded event occurs?

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