UITableViewController自定义单元中缺少UIButton默认的点击淡入淡出动画 [英] UIButton default tap fade animation missing in UITableViewController custom cell

问题描述

我有一个带有几个UIButton的自定义单元格.我已经在按钮上创建了目标操作":

I have a custom cell with a few UIButtons in it. I have created Target Actions like so on the buttons:

[cell.customLocationButton addTarget:self action:@selector(customLocationButtonTap:) forControlEvents:UIControlEventTouchUpInside];

尽管我没有在UIButton上看到默认的iOS淡入淡出动画，但这些动作效果很好.我也需要启用某些功能来获得这些功能吗-我认为使用IB的UIButton时它们是标准的吗?

The actions work great though I don't see the default iOS fade animation on the UIButtons? Is there something I need to enable to get those too - I thought they were standard when using a UIButton from IB?

推荐答案

出现相同的问题.我可以使用setTitleColor:forState:来更改突出显示上的颜色的按钮，但是它没有像其他系统按钮一样从突出显示退回到正常状态.

Had the same problem. I could get the button to change color on highlight with setTitleColor:forState:, but it didn't fade from highlight to normal state like the other system buttons.

原来是因为我的按钮的类型是UIButtonTypeCustom.将其切换为UIButtonTypeSystem可以为我解决.请注意，我正在iOS9上运行它.

Turns out that's because my button was of type UIButtonTypeCustom. Switching it to UIButtonTypeSystem solved it for me. Please note I'm running this on iOS9.

以下是一个片段( Swift )，其中假定self是UIView或子类:

Here's a snippet (Swift) that assumes self is a UIView or subclass:

let button = UIButton(type: .System)
button.setTitle("Title", forState: .Normal)
button.sizeToFit() // Sizes the button frame based on the title.
addSubview(button)

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