iOS的AssistiveTouch慢动画使用自定义键盘时， [英] iOS AssistiveTouch slow animation when using custom keyboard

问题描述

我建立一个自定义的键盘，一切都很好，现在，当我我自定义键盘期间使用AssistiveTouch启用除，AssistiveTouch的动画是有点laggy（缓慢放大，缩小），当水龙头打开吧。

I'm building an custom keyboard, everything is fine now, except when i'm using AssistiveTouch during my custom keyboard is enabled, the animation of AssistiveTouch is little bit laggy (slow zoom in , zoom out) when tap to open it.

我在iPhone 4S和iPhone 6，同患难测试，所以我觉得是不是设备硬件或资源消耗。

I tested on iPhone 4s and iPhone 6 , same trouble, so i think is not about device hardware or resource consume.

有同样的问题或知道原因，有人吗？如何解决呢？

Anyone having same trouble or know reason? and how to solve it ?

推荐答案

我找到原因我自己。因为影子。
我添加阴影每个按钮，删除阴影后，滞后没有出现了。

I found reason by myself. that because of shadow. i added shadow for each button, after remove shadow, the lag didn't appear anymore.

所以任何人提出一些更好的方法来添加阴影的一个按钮laggy？

so anyone suggest some better way to add shadow to button without laggy?

这是我的方式来增加阴影按钮：

this is my way to add shadow to button:

button.layer.masksToBounds = false
        button.layer.shadowColor = UIColor(rgb: 0x000000, alpha: 0.5).CGColor
        button.layer.shadowOpacity = 1.0
        button.layer.shadowRadius = 0
        button.layer.shadowOffset = CGSizeMake(0, 1.0)

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